What's the matter with unplugging the display headset mode of Bole mobile phone charger?

Many brand machines have earphone mode, and the tail plug is different. I feel like I can't start. In fact, some troubles can be solved.

1, if it is in the high-level mode, when the CPU detects that the detection pin is in the high level, the mobile phone will enter the headset mode and ground the interfaces one by one.

Look at the reflection of the mobile phone. There are feet on the screen to cancel the earphone mode. Just ground it.

2. If it is a low-level mode, it can be solved by 2.8 volts one after another.

I used a tin wire with a voltage of 2.8, one end of which was welded with a voltage of 2.8V, and the other end was wound around tweezers, which were inserted one by one from the tip to the tail.

It is best to test the mobile phone with power supply. If the power supply is short-circuited immediately, it will not burn the machine. It should be safe to use the same method when grounding.