Make the bad iPhone 7 touch screen work again

Have you met the screen of your iPhone suddenly did not response, whether you are poke it hardly or restart it many times, it still not working which like being frozen. As we all know if your phone screen has no response then you can do nothing with the phone. So, you should be buy a new one or repair it by phone repair tools. If you want to repair it, you need to backup your data of your iPhone before doing that. Now, let's repair it.

First of all, clean the screen and reset it to a factory state after it's not working to restore the iPhone. If all of these steps are invalid, then maybe you should replace the phone touch screen.

The second place, open the phone by phone opening tools, cut the flex cables and unload the logic board screws, then take out the logic board.

Thirdly, check out where the problem is, texting your iPhone screen by using digital multimeter, and know that the inductor FL3904 was damaged. Then, remove the problem. Take down the inductor with soldering iron, solder tins on the copper wire. After that, connect the two bonding pads of the inductor with the copper wire, then cut off the rest of it with a sculpture knife, use digital multimeter text again and get the normal data which means the problem had been repaired.

Finally, assemble your iPhone and test your iPhone touch screen, the touch function is back to normal and you can control your phone again. If you want to know more the knowledge about repair iPhone, you can go to vipprogrammer.

The related link:

http://blog.rewatechnology.com/2017/05/how-to-repair-iphone-7-touch-screen-not-working/