Why does the system update fail when I upgrade the system with OTG on a Huawei phone?

It may be that the battery of the mobile phone is insufficient, and the battery must be guaranteed to be above 20%, otherwise it cannot be upgraded. It may also be that the memory storage space is insufficient, so it is recommended to clear the memory space or install an SD card.

Upgrade again. If you have an SD card installed, your phone may not be compatible with some brands or formats of SD cards, you can uninstall the SD card and try again.

In addition, if you have been rooted, you may have uninstalled the preset applications or changed the system files, it is recommended to force the upgrade through eRecovery or HiSuite. If you don't have root, back up your data and take the purchase invoice to Huawei's after-sales service point for maintenance. Use the volume key to select the option, the power button is OK, and it is OK to restart the phone, it does not affect the normal use, but it can't be updated.

Alternatively, you can go to the pollen club.

Take a look at the experience of other users of the same model after the update failed, and refer to it.

1. The forced unlocking method is as follows:

1.Turn off the phone, press and hold the power button and the volume up button until the official recovery interface appears.

2.Press and hold the volume down button to select "Factory Reset", "Factory Reset or not" is displayed, and click OK to restore factory settings.

3.After the recovery is complete, press and hold the volume down button to select "Clear Cache Partition", and press and hold the power button to confirm. Select Clear Cache and then DAT Clear to unlock it.

2. There are two reasons for the upgrade failure:

3.During the upgrade, the process is abnormal, causing the upgrade to fail.

3. The solution to the upgrade failure is as follows:

1.The network cannot be interrupted during the update process, and the phone must have enough power.

3.Try to upgrade your phone using other methods, through the settings, system updates, menus, **latest installation package, detect the new version, after the detection is completed, click the one-click upgrade button to upgrade with the full package.

1. The upgraded software may be damaged.

2. In the normal upgrade and recovery mode, restore the factory settings, in the phone settings, click Backup and Reset - Restore Factory Settings - Reset Phone After the phone is restarted, the factory reset will be completed, and then it will be automatically restarted for normal use.

4. Restore the method, Since the phone can't be turned on, the following recovery methods will cause you to lose data, please make a backup of key data at all times. **Software version, please go to the official **database** corresponding to the software version of the mobile phone in advance.

5. Prepare an SD card with a capacity of more than 2G for local upgrade of SD card, to ensure that the free space is smaller than the upgrade package, it is recommended to use brands such as Sandisk, Kingstone, or KingMax. Create a "dload" folder in the root directory of the SD card (note: for the telecom version of Honor, please create a "dload" folder in the root directory of the internal memory card), and put the "good software upgrade package" into the dload folder.

6. Plug in the charger, press and hold the volume up and down buttons, and press and hold the power button for more than 10 seconds to start the phone. The phone will enter the SD card to force the upgrade, if it will not be able to start because the battery is exhausted or the battery is low, charge it before upgrading to ensure that the phone can start, please insert the charger during the upgrade process, otherwise the upgrade will fail if the battery is insufficient.

7. After the mobile phone enters the upgrade, the upgrade will be completed automatically, the general upgrade time is about 5 minutes, if the upgrade fails, you can try to try again.

Summary. Flashing failure leads to the defect of the mobile phone system file, and it is necessary to flash the firmware to forcibly recover the card swiping operation: 1. Find the corresponding flashing package of the mobile phone model on the official website of the mobile phone brand, and spare it in the root directory of the mobile phone memory; 2. Turn off the mobile phone normally when the battery level of the mobile phone is more than 50%; 3. After shutting down, press and hold the power button and volume up button of the phone for 10 seconds to enter recovery mode;

Hello dear dear When flashing the Huawei phone, it shows that the upgrade failed and you need to re-flash the phone.

When the Huawei mobile phone is flashed, the base weather shows that the upgrade fails and can only be re-flashed, and your lead is a typical situation where the mobile phone fails to be flashed, and it can only be solved by re-flashing!

If the mobile phone system file is defected due to the loss of the limb of the flashing machine, it is necessary to flash the firmware of the bridge machine for card swiping operation and forcibly recover: 1. Find the corresponding flashing package of the mobile phone model on the official website of the mobile phone and spare it in the root directory of the mobile phone memory; 2. Turn off the mobile phone normally when the battery level of the mobile phone is more than 50%; 3. After shutting down, press and hold the power button and volume up button of the phone for 10 seconds to enter recovery mode;

4. Use the volume button of the phone to select the item Qing Yumu up and down in Recovery, click the power button to confirm, move the cursor to the "Install Zip Form Sdcard" item, press the open button to confirm the selection, and then select "Choose".