The mobile phone enters this mysterious code to enter the engineering mode, the mobile phone problem is fully understood

2021/09/1418:08:03 digitals 2396

There is usually a hidden mode called "engineering mode" on mobile phones. Its meaning is to allow testers and maintenance personnel to test mobile phones, but in fact, we can also test whether there is a hardware problem by entering the engineering mode. Do a comprehensive "physical examination" for your mobile phone to make the phone problem clear at a glance.

The common code to enter the engineering mode of the brand:

   Xiaomi##6484#Lenovo ##*span11#6484#Lenovo span11span *#*#2846579#*#*  Meizu *#*#3646633#*#* Nubia*#8605# VIVO *#558#  OPPO  *#36446337# Samsung*#0*# Sony* #*#7378423#*#* HTC *#*#3424#*#*

How to use:

1. Open the dial keyboard of the phone, directly enter the code, and a new interface will pop up automatically If it doesn’t pop up automatically, just click the dial button.

2. Just start testing one by one.

Note: The test interface of each model is not much different. You can try it yourself. My screenshot is a screenshot of Xiaomi. In addition, I remind you that this mode is not designed for It is used by consumers, so if you encounter an unfamiliar menu, do not operate it easily, otherwise it may cause problems with the phone.

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