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I was curious about the process of replacing the screen of my iPhone, so I took off the screen and started practicing. After taking off the screen, I then went on to disconnect the flat cables that connected to the front panel WITHOUT DISCONNECTING THE BATTERY. I took off the front panel and them connected it again. When I turned on the phone, it had lines on the lcd display and half of the touchscreen didn’t work. Then I went back into the phone thinking that maybe I didn’t connect the cables correctly. After doing the same thing as I did before, but WITH DISCONNECTING THE BATTERY, I finally turned on the phone again. Now my phone’s screen won’t turn on, it’s not responsive when I plug it into iTunes, and there’s no vibration or anything after plugging it into a charger. Could it be that I broke the logic board and that I need to replace it? PLEASE HELP ASAP!!!
It sounds as if you shorted out the backlight circuit. Powe it back on, hold a flashlight to display to see if you see a faint image on screen. If so, you’ll need microsoldering repair on backlight circuit. If not, connect to itunes, is it recognized? Post back results. Always! Power off device and disconnect battery before removing or attaching flex cables.
Connect phone to computer with iTunes open. Then on the iPhone hold power and home for 10 seconds, then release power button but hold home button another 5 seconds. iTunes will see the phone in dfu mode and try and restore it. Here’s where it sucks..iTunes will try and update the phone and one of two things will happen, either iTunes will update the phone or it will get stuck on waiting for iPhone then eventually you get error 9. If that happens then something is bad on the board..
