Chosen Solution
After my old Screen cracked i ordered a new one and tested it - worked fine. Then i disconnected it again to reglue the homebutton etc. After connecting it again all i got were these white lines. Backlicghht seems to work just fine. I also tested another known good LCD - same issue. Is anything wrong with the LCD Connectors on the Board? Any ideas? Thank you in advance.
hello Chris, did you disconnect the battery when connecting the new screen? A lot of iPad faults are caused by connecting accessories (the screen is one of them) at 12-16V. This is usually tragic. In the right hands (first rule of electronics: do not work on live current unless you are doing a test. Otherwise: never, never) sometimes it works. Only sometimes. When connecting the screen - people try to plug the connector into the port, sometimes they wander … moving a little left, a little right. Some use force … believing it didn’t pop in … It kills iPads like yours. By moving the connector over the pins, you find those with signal voltage (0.3-1.2V) and sometimes those with power supply (3.8-16V). Imagine what could happen to the delicate electronics destined for 0.8V when you serve them 12, 14 or more volts. How to fix it now … it would be nice to check your new screen is still working fine. Connect it to another tablet (if you have the option, if not - ask a technician at a good repair shop) and test it. If it’s ok, I can use it again. Disconnect the battery as first thoing. If you have an idea of electronics, you can handle it. I will assist remotely :-) You will need a meter - check and write down the resistance of all pins in the video port (long vertical strip, two horizontal strips are touch ports). You will need to solder something, so a good soldering iron is required. If you don’t feel up to it, find a good electronics - he will know what to do. regards and fingers crossing :-)
