How to Solve iphone 6 Motherbarod Problem

Use this guide to remove or replace a faulty motherbarod in your iPhone 6. The important thing is that you can use the professional tools to check or fix your iphone 6 motherbarod. Viprogrammer can provide high quality and low price cellphone repair tools, hoping you can choose the best tools to fix your iphone 6.

PROBLEM:
IPhone 6 shows nothing after being turned on and the screws on the motherboard are gone.

SOLUTION:
1. After teardown this iPhone, we find that someone has twisted off screw BS2503. The real location of screw BS2503 is shown in BELOW picture.

Observing under a microscope, the screw is shown in below picture.

2. Getting a useless motherboard, scrape the PCB under the screw off slowly under a microscope. We can see there is a line under it, as shown in below picture.

3. Comparing it to a brand new motherboard and checking the bitmap schematic diagram, we know this line is the power supply circuit used between main power chip and PP1V8_LCM_CONN of LCD socket, as shown in below picture.

4. Solder the broken circuit with a copper wire and connect display screen to test. Now iPhone can display normally. Paint some UV Solder Resist to make it insulated and use a UV glue Curing LED Lamp to solidify green UV Solder Resist, as shown in below picture.