Buy a new touch online, about 600 yuan.
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First of all, the whole machine is disassembled, and the corresponding screwdriver should be ready to use before.
When removing the screen, gently separate the small chip that connects the screen to the mainboard.
Remove the access card and the card slot sticker under the access card before removing the metal shield isolation layer.
Finally, take a hair dryer to dry, but do not blow on the screen for a long time, such high temperature will destroy the screen, even if the screen has a watermark can also use the phone normally, the water in the screen will generally dry in two days, you will see the watermark inside is getting smaller and smaller.
Blow on both sides of the motherboard to ensure that there is no residual water, and try to blow out the water at the receiver and keys.
Finally, put the disassembled mobile phone in a dry and noisy place, it is best to place it for about two days, and then install it.