How to enter Huawei's mobile phone engineering mode

1. Take Huawei P20 mobile phone as an example, and turn on the "Dial" button in the mobile phone. Enter * # * # 2846579 # * * in mobile phone dialing to enter the item menu mode. The following figure shows the items displayed on the page after entering the item menu mode, including "background settings, single board information query and network information query".

2. Enter the engineering mode: click the dial-up interface on the mobile phone desktop. After dialing, enter: * # * # 2846579 # * #. Enter the engineering mode. Click on the background settings, and you can set them according to your own needs.

3. First turn on the mobile phone, and then click the dial button on the desktop of the mobile phone; Click Dial in the pop-up interface; After dialing, enter: * # * # 2846579 # * # *; After the input is completed, it will enter the engineering mode. Huawei Technologies Co., Ltd. was formally incorporated in Shenzhen, China on 1987.

4. Click the dial button on the mobile phone desktop; Enter * # * # 2846579 # * # in the dialing interface; After the input is completed, it will automatically enter the engineering mode, and you can enter related operations as required.

5. Steps for Huawei Glory 6 mobile phone to enter recovery (engineering mode): press the volume up button first, and then press the power button. Until entering the bootloader interface (recovery mode), after entering this interface, the volume up and down keys are used as the selection keys, and the power key is used as the confirmation key.