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iPhone 6 No Display- Try to fix it by soldering jumper wire

After turn on iPhone 6, the iPhone screen doesn't display, after try several times, the iPhone 6 still no display. After checking, the iPhone CPU is fine, so now we try to fix it by soldering jumper wire. The repair details are as follows.


Step 1

Disassemble the iPhone 6 by phone opening tools, take out the iPhone motherboard.

Step 2

Check whether the iPhone display socket has water damaged or virtual welding problem, the iPhone display socket is fine.

Step 3

Measure the resistance value of the socket by digital multimeter,after measurement, we found the display socket 12 pin doesn't have resistance value. Check if the connected c2001 capacitance and fl2034 inductance have corrosion and virtual solder problems, the fl2034 inductance measured are no resistance value.

Step 4

According to the iPhone schematic diagram, the fl2034 inductance passes through the U2403 6 pin tube and then to the CPU. Using a digital multimeter to measure the iPhone touch screen control IC U2403 of the corresponding bottom pins, the data tested are normal. So, we can eliminate the CPU problem. In this case, we need to solder jump wire.


Step 5

Use QUICK TR1300A hot air rework station to remove the cover, and then solder a jumper wire from the 6th pin of u2403 to a measuring point next to the screw hole，and then solidify it with green UV oil.

Last step

Assemble the iPhone 6, press the iPhone power button to turn it on, the iPhone screen displays normally. Get into IOS to test other functions,  everything goes well. 



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