If the screen of the touchscreen phone has become less responsive and responsive to your movements, then it is necessary to hand it over for repair so that the situation does not worsen. If for some reason (there is no time or money) you cannot do this, try to fix the problem yourself.
Instructions
Step 1
Take a matchbox or any other small box into which you will later put the screws and bolts so that they do not get lost. Remove the side panels from your phone to fix the sensor. Take a hex screwdriver. On the back cover of your mobile phone, remove the two screws located under the side panels.
Step 2
Locate the two screws in the battery compartment. Unscrew them. There are latches behind the side panels. Take a thin screwdriver, remove the top cover. Disconnect the shield connector. Take a thin Phillips screwdriver and remove the two screws located at the top of the case. Find the headphone jack there. There is a microphone next to it. Separate the connector from the board and then separate the board from the shield.
Step 3
Take a regular eraser. Use it to clean the loop contacts to a shine. Connect the ribbon cable to the board. To do this, turn the screen over. To fix the sensor, include the resulting design. Take the scotch tape, cut a thin strip and attach the battery to the board so that it does not come off and the power does not stop. Remove the lock located between the CF connector and the battery. Find the Power button on the board. Click it.
Step 4
Determine the cause of the breakdown. Typically, the sensor begins to work poorly due to the failure of the contact from the loop directly to the screen. To test this theory, press the shield-to-ribbon connection using any dielectric. In this case, the eraser with which you cleaned the loop contacts is suitable. Move the stylus across the screen. If the sensor is working properly, then the malfunction was precisely in the poor permeability of the contact. It can be fixed quite easily.
Step 5
Cut a thin, very even strip of eraser approximately 1 mm thick and stick it where the screen meets the ribbon cable. Do not use superglue for this purpose. Take glue "Moment" or any other glue with a viscous consistency. If the problem is not in the density of contact, to fix the touch screen, seek help from qualified personnel.
