It can be quite intimidating when your iPhone falls on ground and the screen gets shattered. Display problems, irresponsible LCD and unpleasant look, you just can’t help but have your iPhone LCD screen replaced as soon as possible. However, some users report that their iPhone won’t turn on after screen replacement. For your first thought, you might think that your phone just completely dead. The causes of the won’t-turn-on thing can be various. Actually, it could be easily fixed by yourself. You don’t have to ask your repair technician or care center for help at all. Below are a number of things you can do to fix your problem.
1. Power Distribution Issue
When you first notice that your iPhone LCD won’t turn on after screen replacement, power distribution could be the problem. You need to reboot your iPhone and it works for some devices. Turn off your iPhone, and disconnect the battery. Wait for about 10 to 20 seconds, reconnect it and turn the phone on.
2. The Dead Battery Issue
It is possible that your iPhone battery went dead after the LCD replacement. Start with troubleshooting to find out if the problem is caused by the battery. Simply plug your phone into the socket charger and switch it on. If the display still doesn’t show, disconnect the battery from your phone but remain the phone connected to the charger. If you see the Apple logo and iPhone boot loop on the display, then the problem possibly lies in your battery.
3. The Damage Board Issue
The other possible reason is that the board is damaged, which affects your original screen as well. In such a case, the best way is to visit an Apple care center or a repair shop for solutions.
4. Assembly Issue
In this case you should remove the 2 bottom screws and elevate your screen less than 90 degrees, and then remove the brackets that covers the LCD flex cables. With this done, disconnect the battery and drain the reserved power in your phones by holding the power button for a few seconds. Then reconnect the battery and place the flex cable brackets back to its position. Now, reconnect your screen and power your iPhone on.
5. Flex Cable Connection Issue
Like many other mobile devices, the iPhone screen is connected to the motherboard through flex cables. Above the flex cables, there is a bracket to protect the connection from damage. The flex cables may either be damaged physically or from a short circuit during screen replacement. If you can view metal solders at the point of connection between the screen backlight and the flex cables, this can be a sign for cable connection problem or damage.
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