When you replace the screen of your Huawei mobile phone, but the touch screen does not work or does not display, you may troubleshoot according to the following situations:
Situation 1: The touch base is not buckled properly, which will cause the touch to be ineffective and non-touchable.
The touch base is not buckled properly
The touch base is buckled properly
Situation 2: There may be static electricity, causing the touch to be inoperable. You need to tear off the film to test.
Situation 3: There is no problem in the assembly test, but the touch does not work after installing the frame. The reason is that the touch does not work due to static electricity and the IC is not pasted with high-temperature glue.
Scenario 4: TP is not sensitive: the touch cable is broken; the motherboard holder or LCD holder is broken; the motherboard is defective; test work is not done accurately; there is not enough information written. These will cause the touch to become ineffective.