The most common issue seen on the iPhone 6 Plus and sometimes the iPhone 6 is touch disease. This fault is caused by flexion of the logic board which breaks connections under the touch IC.
The most common symptoms of this fault are:
- Unresponsive touch screen.
- Grey bars at the top of the screen.
- Touch screen freezing.
- Having to bend the phone for the touch screen to work.
This fault is caused by poor design by apple and flexion of the motherboard over time, it can also be caused by bad drops and bending of the phones rear housing. On the iPhone 6 Plus the housing of the phone is weak and can bend very easily, every movement in the housing passes through to the motherboard and over time traces within the motherboard break. In this instance the trace leading to the M1 pad under the touch ic in the phone breaks and causes touch disease, when the phone is bent in a certain way the connection is restored and this is why the issue can be intermittent.
At microsoldering repairs we are able to remove the touch ic, run a jumper to repair the broken trace and restore the connection to the M1 pad, then reball the ic and re attach it resolving the issue and restoring touch functionality.
This repair is future proof as the jumper put in place is stronger and less vulnerable than the original trace, meaning further flexion of the motherboard will not cause the connection to break again.
We repair a lot of this fault, along with other common issues such as audio ic on the iPhone 7, Tristar replacements for charging issues and baseband repairs for no service or searching faults.