How to correctly open the USB debugging and complete log functions of Huawei mobile phones?

Huawei mobile phones （ glory 6） Can't turn on USB debugging ？

Borrowed a Huawei glory mobile phone , It is estimated that the system has been reset , The computer is not connected , Open developer mode in about . And open USB Debug mode , But it just opened , If you come in again, it will become an optional state , And cannot debug .

The following operations are required for normal use USB Debug mode .
1. First open the dial , Input
*#*#2846579#*#*

2. The following dialog box will pop up automatically , choice “projectmenu”

3. Select... In the next dialog box “ Background settings ”

4. Choose... In the next dialog “USB Port settings ”

5. Continue to select... In the next dialog box “USB Port settings ”

6. Select... In the next dialog box that pops up “Google Pattern ”, choice “ determine ”

7. It will show that the port configuration is successful , Exit engineering mode .
At this time, it should be used normally USB Debug mode , If there's still a problem , You can try to restart your phone .

Huawei mobile phones cannot be used Debug and Info Log

Listen to the test and say that Huawei P9 The log cannot be displayed on , After check , The system should be restricted , Only you can show Info Above grade , Can't show Debug and Verbose Log .

Huawei Android Mobile phone open Log, Show log

1. Enter... In the dial-up interface
   *#*#2846579#*#*

Same as above
2. open Log
- In turn “ Background settings –>2.LOG Set up –>LOG switch ”, choice “LOG open ”; （ If so, choose , No, just the next step ） Go back to the previous screen , Click on “LOG Level settings ”, choice “VREBOSE”.
- Return to the above figure , choice “Dump & Log”, Turn on the switch “ open Dump & Log”.（ Different phones may vary slightly , You can understand the meaning ）

If you can't find it , You can follow this step ：
ProjectMenu -> Background settings -> 1.LOG Set up -> LOG open -> Dump & Log -> Log switch -> Back tick -> Return to the desktop .

If there are still exceptions , You can restart your phone .