What caused iPhone 7 plus touch function damage after replace screen?

kyle's Avatar


20 Oct, 2018 02:16 PM

Every technician has encountered the problem of iPhone 7 and iPhone 7 plus screen repair . When you receive the goods from a remote supplier , the first thing is to unpack the LCD and test one by one . However , when the customer came to your store for fixing them phone . Many technical will do a double check before installing the lcd and then screw the butt , but after the customer took the phone , they will come back after two days or even the same day to tell you that the screen function has a touch problem .

The main reason is that after the iPhone 7 lcd screen has EEPROM (Electrically Erasable Programmable Read-Only Memory ) . Only iPhone 7 lcd screen encrypts the touch function , iPhone 8 series and iPhone X series only encrypts ambient light sensor . iPhone 7 lcd screen’s EEPROM is used to save the touch function data. The secondary reason is that there are a lot of manufacturers working with the iPhone to produce screens , which results in different screen quality of each production , and the data stored in the EEPROM is different . It is understood that the first manufacturer to produce iPhone 7 lcd screens is Toshiba , Toshiba LCD has only a small probability of a touch function damage . Screens produced by other manufacturers has very high probability of touch function problems due to different EEPROM data .

How to solve it ? It is now possible to fix iPhone 7 lcd screen to touch function problem with the EEPROM Programmer Mach . In the first two months , the ambient light sensor repair instrument has been introduced . We all know that the ambient light sensor repair instrument can read the data onto EEPROM , copy the original screen code through a similar device and import it into a new original screen . The same way for the iPhone 7 EEPROM . The iPhone 7 lcd screen flex connector is the same as iPhone 8 lcd screen . Transfer the old screen data onto the EEPROM to the new screen using the ambient light sensor repair tool . But this method must keep the old original screen .

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