Responder a: Black screen with solid blue light after teardo, tried button restartsAny update on this? I am curious if the new screen worked?
Responder a: Touch ID fails to setup after disassembling iPhones with iOS 10.0.2What model iPhone is this? If it is an iPhone 6, Then I would bet dollars to donuts they damaged the backplate flex cable that connects the home button to the motherboard. This cable is very sensitive in most cases your home button will still function but the touch ID will stop working if this cable has been damaged at all. Replacing the back plate with touch ID flex cable will 99% of the time correct this problem.
Responder a: Wont power up after screen repair?This issue sounds to me like you have accidentally popped the backlight fuse. This most typically happens with the iPad 4 and iPad Mini, and is caused by removing/reconnecting the digitizer and/or the LCD without first disconnecting the battery (notching a guitar pick and jamming it into the battery connection after removing the single screw is the easiest way to ensure the power is disconnected.) and creating a voltage surge in the logic board. This fuse is very fickle, and will pop very easily. Shining a bright LED flashlight on an angle at the LCD, should allow you to see the Apple logo, so you know it is indeed the backlight fuse. If you determine your issue to be the backlight fuse, you are going to have to either jump/bypass the fuse (not really recommended, but a fast fix), or replace it. There are many articles online with close up pictures to allow you to identify the faulty part.
Responder a: Digitizer freaks out when laid flat on the frameIf you are doing this as more than a hobby, then get into the habit of double-checking and re-applying the tape on EVERY iPad digitizer before you install it. It's going to take you a few tries and re-tries to get it down to a science, but once you do, the 5 minutes that you take to inspect and (if needed) re-tape the digitizers, will save you a ton of stress and going crazy AFTER the digitizer has been installed. I love my screen supplier, and they generally have very good parts, but I have found that iPad screens are very fickle, and need to be inspected/fixed before you try to install them. No exceptions!