Possible causes of the problem: 1. Deleted third-party applications due to misuse. 2. The application icon was moved to a certain folder in the home screen due to a wrong operation, and the application could not be found. Solution: 1. If the data of the third-party application is abnormal or the third-party application is deleted, reinstall the third-party application. 2. After the system is upgraded/updated the application/application icon is moved to a certain folder in the home screen, and the application cannot be found. 3. Pull down the home screen and enter the app name in the search box to find the app. If none of the above methods can solve the problem, please back up your phone data and reset your phone to factory settings.
The Android system is an open system, and users can independently choose and limit the permissions of applications. In order to better avoid leakage of personal privacy and protect the security of your personal information and data, it is recommended that you set the sensitive permissions of each application carefully. You can set various permissions of the application in System Settings > Permission Management, and you can also authorize the application according to the category of permissions.
1. Please try to check whether you have correctly set the blocking rules enabled by the system settings. 2. If you have rooted your phone, the background interception service set by the system may be cleaned up. It is recommended that you do not perform root operation, and do not clean up system applications. In addition, if you have installed multiple interception applications, there may be inter-application permission usage. Conflicts, it is recommended that you delete and keep only one. 3. Please try to clear the cache of the system settings.
Click on Settings - System - Date and Time The specific path may be slightly different according to the model, choose to automatically determine the time or manually adjust according to your needs
Click Settings - Display - Sleep and choose the time you want.
Settings - system - language and input method - current input method, you can switch the input method.
Please go to Settings - Security and Location Information - Screen Lock, after entering the original password, change the lock screen method to None\Slide Pattern\Simple Password\Complex Password.
In the off state, press the power button and the volume up button at the same time to turn on the phone, release the power button after feeling the vibration, the phone will enter the recovery mode. After entering, you can perform SD card forced upgrade and restore factory settings.
Enter the clock application, click the alarm clock tab, select the alarm clock you want to edit, enter the configuration page, select the ringtone setting item, and the pop-up page has three tabs: ringtone, music, and recording, which correspond to system (or alarm) ringtones, local music files, and recordings. file, you can choose one of the files as ringtone according to your needs. Enter the clock application, click the alarm clock tab, select the alarm clock you want to edit, enter the configuration page, select the ringtone setting item, and modify the ringtone you want. If you choose a ringtone other than the built-in ringtone, please drag it up to find more ringtone setting items , the music files you downloaded to your local area will appear.
Please go to System Settings - Permission Management, there are two tabs: Apps and Permissions. You can set permissions for each app individually under the Apps tab, or grant each app for each type of permission under the Permissions tab.
Go to Settings-System-About Phone, quickly click "Version Number" 10 times, you can find developer options in Settings-System
The online upgrade cannot find the latest version, which is related to the current network environment. It is recommended that you perform the following operations to update the version: 1. Switch to other mobile data or WLAN network, and then check the update; after checking the upgrade package, it is recommended to download the upgrade package in the WLAN environment to avoid extra charges due to consumption of mobile data. 2. If you still can't find the latest upgrade package, go to Settings - Apps and Notifications, view all apps, display system processes, find System Updates - Storage, then click Delete data and clear cache, and then check for updates. Shut down, then use the data cable to connect to the computer, press and hold the volume up button and the power button at the same time to enter the recovery mode, and download the updated system according to the interface prompts.
Some of the pre-built third-party applications are tailor-made for products by third-party companies to provide a better experience and provide some functions and services that are not available in the open market download version, and their update plans and public versions are not complete. Consistent, it is recommended that you do not uninstall and wait patiently for the updated version
1. Is there any operation in the background such as downloading, copying files, etc. that will bring load to the mobile phone. 2. Check whether third-party security software, anti-virus software or other problematic applications are installed. It is recommended to regularly use the system settings for physical examination and uninstallation. restart cellphone. 3. Whether the screen freezes suddenly and the system pops up an unresponsive window, in this case, the application is abnormal. Suggestion: Upgrade the application and use it for a while to observe what regularity is causing the problem.
The preset system core-level applications cannot be uninstalled, and other general applications or third-party applications can be deleted. Such applications allow to uninstall the updated version. If you uninstall such an application, the uninstallation may be an updated version of the application, and the shipped version of the application will still exist. Other apps have a self-protection function to prevent them from being uninstalled. You can remove the protection first and then delete such apps. Please click "Settings - Security & Location Information - Device Management Application", click the application you want to uninstall, and then select "Deactivate".
1. Please refer to the evaluation of this application in the official market or other major application markets, whether the application generally has the problem of slow startup, and check whether the current application has not been updated for a long time or adapted to the current application. The Android version of the phone. 2. Some applications need to load data on the network side when they are started. If your network side is blocked or the network speed is slow, please check your current network status.
1. It is recommended that you download the official version and install it in the app store. If you need to install the installation package downloaded from an unofficial channel, you need to set the trust source of the program. Please enter the app information interface of the corresponding app, and turn on the "Allow apps from this source" switch in Install Unknown Apps. 2. Please check whether the memory space is sufficient. You can use the system settings to clear the system to free up installation space. 3. Some models support the application to be installed in the external SD card. If you have set the installation to the external SD card, please first check whether the card can be recognized by the mobile phone in the file manager. 4. The network connection is unstable, the installation package is damaged or the download is incomplete, please delete the installation package and try to download again. 5. The downloaded third-party application may not be compatible with the phone, so it cannot be successfully installed, please try to download other similar applications.
If the system prompts an error in parsing the package when you install the software, there may be a problem during the download of your package: 1. Please check whether the memory space is sufficient, clear the storage and cache of your application market or other download application tools, delete the original installation package at the same time, and download it again. 2. The network connection is unstable, the installation package is damaged or the download is incomplete: please delete the installation package and try to download again. 3. The downloaded package is not compatible with your current operating system version. It is recommended that you check the compatibility of the application. You can refer to the user reviews under the major application markets.
1. Please verify whether the application has a foreground page, and then try to open it after restarting. Some malicious applications have no icons and no foreground display after installation. 2. The downloaded package is not compatible with your current operating system version. It can be installed but cannot be opened. It is recommended that you check the compatibility of the application. You can refer to the user reviews in the major application markets.
1. When the new phone is turned on for the first time, many system resources need to be initialized, which will take longer than normal booting. Please wait patiently. 2. If it still does not turn on after waiting for a long time, such as 10 minutes, it is possible that you accidentally squeezed the combination of the power button and the volume button when you took out the prototype or installed the mobile phone case, and entered the factory mode or recovery mode by mistake. Please press and hold the power button for about 10 seconds to force restart the phone to enter the system normally.
If there is a version update, it is recommended that you update your phone to the latest version in time. After receiving the upgrade prompt, you can go to "Settings > System > System Update" to view the updated content and choose whether to upgrade. It is recommended that you upgrade in a WLAN environment. General system updates will improve the performance of the phone, enhance the protection of personal privacy and data security, and provide you with more fresh functions, so it is recommended that you upgrade in time. If you do not upgrade, the current system can also be used normally. Online upgrade will not clear user data, but to protect your data security, it is recommended that you back up your data before upgrading. Note: The menu of specific models may be slightly different
The download and update is successful. After restarting the phone, it does not enter the upgrade installation interface, but directly enters the system. The notification bar prompts that the last upgrade failed. This phenomenon occurs very rarely. Please download the upgrade package again, and try to upgrade again to solve the problem.
If the system time is inaccurate or slow, the time issued by the operator's network may be used. Due to network delay and other reasons, the time issued by the operator's network may be wrong, resulting in inaccurate mobile phone system time. Suggest: Go to "Settings - System - Date and Time", turn off the "Automatically determine date and time" switch, then click "Time" and set it manually.
1. The built-in space needs to be large enough. The built-in card space also needs to be large enough. 2. The network cannot be interrupted during the update process, and the battery must ensure sufficient power. 3. After the update fails, you can restart the phone to update again.
If the phone cannot be connected to the computer, please check: 1. Whether the phone is turned on. If the screen is locked when the phone is connected to the computer, it is recommended to unlock the screen first. 2. Swipe down the top of the phone screen and check whether the notification bar shows "Connected as a media device" or "Connected for charging" - check "Media Device MTP" (USB usage selection, according to your purpose, you can choose file transfer, Image transfer or link to PC testing software). 3. Turn off the USB debugging attempt. 4. If you are using Windows XP system, check whether Windows Media Player is installed on the computer and whether the software version is above 11. If the version is lower, it is recommended to update or download the latest version. 5. It may be due to the lack of USB driver in the computer.
If the send button on the mobile phone is gray, it may be because the mobile phone does not recognize the phone card of the operator. Please turn off the phone and reinsert the phone card of the operator and try again. If you use a cut card, it is recommended that you go to the business hall to replace the standard phone card of the operator. Cutting the card may cause it to fail to work normally.
1. It may be that the phone system space is insufficient, please clean up the phone memory, uninstall some unused applications, or delete some unused files from the file manager. 2. The software version is not compatible with the system. 3. It is recommended that you download the app from the app store.
The software crash may be caused by the following reasons: 1. Insufficient memory, clear the system cache and try again; 2. The application itself is abnormal or does not support the current operating system version; 3. The system firmware version is not supported. Please feedback the problem through the customer service mail, and the technical staff will locate the problem.
In order to enhance battery life, the default power saving policy will automatically clean up some background applications, if you need to keep a program running all the time 1) Go to System Settings > Duraspeed, and add the app to the protected list; 2) If your mobile phone power saving management supports application power saving management, please enter this option, find the application you need to protect, and turn off the switches such as allowing deep sleep.
1. Please plug and unplug the SD card in the power-off state as much as possible. Hot plugging may cause the microSD card not to be recognized or even damaged. 2. Please try to wait for a while with the black screen, and then turn on the screen. If it still cannot be read, please try restarting the phone. 3. Check whether the sd card is damaged, you can try to read it on a computer or other mobile phone 4. Please check whether your card format and capacity are within the range supported by the model.
Because the mobile phone operating system and some pre-installed applications will take up a certain amount of space after startup.
If the mobile phone suddenly appears to send text messages frequently and automatically, it is very likely that the mobile phone is infected with a virus. It is recommended to restore the factory settings of the mobile phone. After the restoration, the problem cannot be solved.
Press and hold the volume up button and the power button at the same time, and release when the startup screen appears to enter Recovery mode. After entering, use the volume up and down keys to select Wipe data/factort reset, press the power key to confirm, use the volume up and down keys to select Yes--delete all user data"--press the power key again to confirm, and wait for the phone operation to complete -- the cursor will automatically Select "reboot system now" and press the power button to confirm restarting the phone. After factory reset, the data in the phone will be deleted. (If the phone has been set up with fingerprint unlocking, you can enter and back up the data through fingerprint unlocking) Be sure to remember the unlock pattern and password that you have set and turned on.
Pull down the status bar to expand notifications Quickly swipe left and right to delete the notification. Stop notification will be displayed below the current notification and continue to display. Click to stop the notification, you will no longer receive the notification, click to continue to display will continue to receive the notification. At the bottom of the screen after expanding all notifications, click the trash can icon to clear it with one click (only common notifications can be cleared. When the notification bar only contains in-progress notifications or resident notifications, it cannot be deleted). Quickly swipe left and right to delete the notification, long press the notification, you can choose whether to permanently block the notification of the application in the pop-up options, and gently swipe left and right to set more notification settings for the application. Swipe left and right to delete a notification, long press the notification, and choose whether to permanently block the notification of the app in the pop-up options.
After flashing or rooting, the phone may not be in the best working state, and some soft and hard functions of the phone may not work properly. At the same time, because the third-party firmware has not been fully tested, there may be compatibility problems. In addition, the system security cannot be guaranteed, and it is vulnerable to virus invasion and may be implanted with some malicious programs, resulting in loss of personal information or property damage. Flashing or rooting may also bring unforeseen negative effects, please operate with caution. The software and hardware failure of the mobile phone caused by flashing or rooting will be handled by after-sales maintenance outlets without warranty, and will be charged according to ordinary out-of-warranty software maintenance. You need to bear the risks caused by unauthorized flashing, such as the device cannot be used normally after flashing, etc. In the case that the software maintenance cannot be restored, you need to bear the cost of the maintenance by yourself.
Possible causes and solutions: 1. Apps with compatibility issues are installed on the phone: Please check to see if this problem often occurs after you install and open a new application. It is recommended that you try uninstalling and restarting to verify. At the same time, please upgrade all applications and mobile phone systems to the latest version, the latest version will further optimize the compatibility. 2. The phone will automatically shut down when the battery is low: please confirm whether the battery power of the phone is too low, or turn off the phone and charge it for a while and then try to turn it on again. Press and hold the power button for more than 10 seconds, the phone will automatically shut down and restart, please check whether the power button has been touched by mistake, or whether the mobile phone case is stuck with the power button Please click Settings > (Advanced Settings) > On/Off Timer to check whether the On/Off timer switches are turned off. If the ambient temperature is too low, the chemical activity of the battery may deteriorate, the battery may not be durable, and it is easy to automatically shut down when the battery is low. Please confirm whether the current ambient temperature is too low. Abnormal heat will cause automatic shutdown protection. Please check whether your phone is seriously hotter than normal. Please try to avoid using some high-power applications in a high temperature environment or in a direct sunlight environment. 1. False battery power: If your mobile phone has been used for a long time, the battery life is seriously shortened compared to when you just purchased a new phone, and frequent phone calls, games and other high power consumption scenarios appear to automatically shut down, your battery may be seriously damaged. Aging, it is recommended to bring the purchase certificate to our after-sales network for maintenance. 2. If it also occurs in low power consumption scenarios, it is recommended to completely empty the battery and then recharge it 3 to 5 times to confirm whether there is a similar problem when the power display is accurate. If there is still a similar problem, it is recommended to Site overhaul.
The order of the mobile desktop application icons can be customized and adjusted. Method: Long press the icon of a single application to adjust the position order at will.
After the phone is reset to factory settings, personal data will be erased. So when you need to factory reset your phone, please back up your personal data first. You can restore your personal data after doing a factory reset.
The online upgrade cannot find the latest version, which is related to the current network environment. It is recommended that you perform the following operations to update the version: 1. Switch to another mobile data or WLAN network, and then check the update; after checking the upgrade package, it is recommended to download the upgrade package in the WLAN environment to avoid extra charges due to consumption of mobile data. 2. If you still can't find the latest upgrade package, click Settings > Application Management > System Update > Storage, then click Delete Data and Clear Cache, and then check for updates 3. The push upgrade of the upgrade package is carried out in batches. If you have not received it for the time being, you can wait for a while to verify. 4. If the machine version is too low, the company may have removed the early upgrade package. In this case, it is impossible to upgrade through online upgrade. You need to go to the after-sales service center to upgrade the version.
After installing the upgrade package, the mobile phone is stuck on the Doogee interface, please try the following methods 1. If you are stuck on the Doogee interface for a long time, press and hold the power button for 15s to force a restart to see if it recovers; 2. If it still cannot be solved, you can force an upgrade through Recovery (data will be cleared); 3. In the end, it still cannot be solved, and can only go to the maintenance service outlet for processing.
Possible reasons and solutions for the phone running freeze: 1. The user installs too much software: Many applications have the situation of self-starting and waking up other applications, which results in taking up too much mobile phone memory shortly after booting, reducing the available running memory of the system, and running stuttering and unsmooth, if you feel that no matter which application is used in the whole system Neither is smooth. It is recommended that you do the following settings first: 1) Enter the self-start management module of the system settings, and set some unnecessary startup applications to start automatically without booting; enter the mobile phone acceleration module, first perform mobile phone acceleration, and then enter the settings to open the lock screen automatic acceleration function, in the protected application Select some frequently used applications that must be running in the background, such as APPs, into the whitelist. 2) If your mobile phone has a power saving management module (or a power saving manager), you can set the power saving mode of your mobile phone to the performance mode (this setting will increase the power consumption and reduce the battery life accordingly). It supports application power saving management, and you can also set whether to auto-start, deep sleep, etc. for each application individually, which also helps to clear more phone memory by yourself. 3) Go to System Settings - Application Management. In the floating window management, some unnecessary application permissions are turned off, and some software that cannot be deleted can be frozen in the application freeze. After the setting is completed, please restart the phone and use it. 2. Too many push messages in the background: Most software has a push function, which will push some messages from time to time, some of which are useful to users, and some are useless. It is recommended that you go to Settings - Notification Settings, find the app you don't want to receive notifications for, and choose to block its notification function. After the setup is complete, please restart your phone and use it. After the mobile phone is used for a long time, it will inevitably accumulate a large number of junk files. These junk files will greatly slow down the reading speed of the mobile phone, thereby affecting the running speed. The cleaning tool can intelligently analyze the unnecessary files in the mobile phone and help you. The advantage of cleaning is that it can help you free up a lot of storage space, and it can also indirectly increase the speed of your phone. It is recommended that you enter the system settings - space management function, and perform this cleaning work regularly. After the setup is complete, please restart your phone and use it. Due to the compatibility optimization problem between the application and the current system, if only a certain application is stuck, it is recommended that you confirm whether the game or application is compatible with the mobile phone. Please refer to the comments and feedback of this game in major application markets. There is a lag problem in the version, it is recommended that you report to the developer of the app or the app market. If your game is not smooth enough, and the smoothness of the game is also strongly related to the current network, it is recommended to check whether the current network speed is normal and whether it can meet the minimum requirements.
According to Google's latest Android system security policy, from the 5.0 system onwards, it is no longer supported to install applications to external SD cards, but you can select the data storage path of each application as an external SD card, such as navigation data, photo and video recording, music etc. Since each application has different UI styles, you need to set it independently in each application.
The application is prompted to stop running during the running process. Reasons for the problem: 1. When you open it, you will be prompted to stop running, which may be due to incompatibility with the mobile phone system. Please uninstall the app and install the latest version of the app to verify. 2. After running for a period of time, it prompts to stop running, which may be due to insufficient system memory during running, resulting in slow command response and problems. solution: It is recommended to compare whether other mobile phones with the same Android version can run the app normally. If it cannot run, it is usually caused by incompatibility. For applications that are not used in the foreground, it is recommended to use the background cleaning function to reduce the programs running in the background and increase the system memory. At the same time, it is recommended to do space cleaning and system physical examination for the mobile phone regularly to keep the mobile phone system in a good state and improve the service life of the mobile phone.
1. Insufficient phone memory may cause the app to terminate unexpectedly. After booting, please use System Settings > Space Cleanup to clean up, you can also select Deep Cleanup to scan and clean up further. Please move large files to an external SD card, or import infrequently used files to your computer or various cloud disks for backup to save space; please uninstall some unused applications and delete unused files from the file manager . 2. The poor compatibility of some third-party applications may also cause this problem, which is not compatible with the mobile phone software system. Please try to download and install other similar applications. You can also refer to the evaluation of this application in the official market or other major application markets, and check whether the current application has not been updated for a long time, nor has it adapted to the Android version of the current mobile phone; 3. It is recommended that you try to upgrade the phone to the latest software version. If there is still a problem, please restart the phone or back up important data and restore the phone to factory settings.
There are many reasons why applications start slowly: 1. The phone memory is insufficient, which may cause the application to start slowly. It is recommended to clear the phone memory in time. 2. The application version is too low, which may cause the application to start slowly. It is recommended to uninstall the application and download and install the latest version. 3. There is a problem with the application itself, it is recommended to download other similar applications for alternative verification.
After the screen is locked, the background program is automatically closed. This phenomenon is because the mobile phone does not set this application as a background protected application. Some applications are automatically closed when the screen is locked, which can save you battery and network traffic. If you want certain apps to keep running all the time, you can set the app to background protection, as follows: Enter "System Settings - Duraspeed"", select the protected background application, and open the protection for the required application.
The specific steps to enable USB debugging on the mobile phone are as follows: 1. Enter "Settings - System - About Phone", 2. Click the version number several times in a row until the screen prompts you to enter the developer mode; 3. Go back to the "Settings - System" interface, click on the developer options, and check the "USB debugging" checkbox; 4. Different models, the USB debugging interface may be slightly different
1. Go to "Settings - System - About Phone". 2. Click the "version number" for several times in a row until the screen prompts you to enter the developer mode. 3. Go back to the "Settings - System" interface and click "Developer Options".
Please go to Settings - Security and Location Information, and select the corresponding unlocking method through the screen lock.
This is normal. When the camera is turned off, it will focus on the distance by default. When the camera is turned on, the phone needs to wait for the picture to stabilize before starting to focus automatically to achieve the clearest state. This process usually takes 2 to 3 seconds to wait.
The phone freezes when using individual apps: 1. In this case, the application itself may be abnormal or the application is incompatible. 2. It is recommended to uninstall this app first, download and install the app again and try again. 3. If there is still a stuck problem after reinstalling, it is recommended to confirm whether this application is the latest version, please download and install the latest version through official channels and try. 4. If there is still a problem of running stuck, it may be that the application itself is not compatible with the mobile phone system. It is recommended to download and use other applications of the same type.
ROOT is the only super user in the Android system and has all the permissions in the system. Mobile phone ROOT operation means using an unofficial method to obtain the super permission, which may cause your mobile phone to be out of warranty. Please proceed with caution.
Open the call, enter "*#*#8613#*#*" on the dial-up interface, select "Hardware Detection", select the function to be detected and click "Start Detection".
Open the call, enter "*#*#8613#*#*" on the dial-up interface, select "Hardware Detection", select the function to be detected and click "Start Detection".
Mobile phone charging: Mobile phone A is plugged into the OTG cable, and the other end is connected to mobile phone B through the data cable, and A can charge B. (Requires mobile phone A to support OTG and reverse charging) Connecting the mouse and keyboard: When connecting, the mobile phone needs to provide power to the mouse or keyboard. Due to the high power requirements of some devices, it may not work normally. If you encounter such problems, please try another mouse or keyboard. Transfer files: Connect the phone to the USB storage device via OTG cable, and then enter "File Management" to transfer files between the phone and the USB storage device.
1. Some operators and regions can handle VoLTE services. For details or scope, it is recommended to consult the local business office or 10086 and other service calls. You must first activate this service with the operator. 2. Go to "Settings > Network and Internet > Dual SIM Settings > Mobile Network > Non-Internet SIM Volte Internet Access During Calls", and enable this function.
Press the power button to turn it on. After you feel the vibration, keep trying to press the power button and the down button to enter the safe mode after booting. After entering safe mode, a prompt will be displayed in the lower left corner of the screen. Note: Only some models support
Go to "Settings - System - Reset - Erase all data (factory reset)".
1. Enter Recovery: The phone is not connected to the USB data cable. When the phone is turned off, press and hold the power button and the volume up button at the same time to enter Recovery mode. For individual models, you need to press the volume up key to select Recovery mode, and press the volume down key to enter. 2. Exit Recovery: 1) Move the volume key, confirm the power key, and select "reboot system now" or "Power off" on the Recovery interface. 2) Press and hold the power button for about 10 seconds to force shutdown.
1. Enter "*#06#" to view. 2. It can be viewed on the outer box.
Hello, please check if your contacts are saved in the SIM card. The reading speed of contacts in the SIM card is related to the performance of the SIM card and the number of stored contacts. Generally, the more contacts stored in the card, the longer the reading time is required. The new 4G card supports multiple numbers for one contact, and the reading speed will be slower. Solution: It is recommended that you open "Contacts", click "Settings button on the upper right > Import and export contacts", and choose to import the contacts in the SIM card into the phone. In addition, long-term use of the SIM may cause wear and tear, resulting in slow data reading. It is recommended that you replace the SIM card in the business hall.
Please try the following methods: Please check if the screen film is thick. It is recommended to replace the film with a thickness of no more than 0.2 mm. Please restart your phone. Too much software running on the phone will cause the operation to become unresponsive. Please back up important data, reset the phone to factory settings, or upgrade to the latest software version and try again. When the mobile phone signal is weak or unstable, there will be no response for a short time, please wait patiently, or operate in an environment with strong network signal.
Recovery to force a factory reset (clean all records, uninstall downloaded third-party apps, delete user data, restore pre-made apps): 1. The phone enters Recovery mode. 2. Use the volume keys to select "wipe data/factory reset" (wipe data/factory reset), and press the power key to confirm. Note: It is applicable to the abnormal function caused by the third-party application, and the factory reset cannot be used in the settings, etc.