25/05/2026
🚨 iPhone 7 Plus Stuck in DFU Mode?
This device came in completely stuck in DFU mode with a serious 3V line short to ground issue on the motherboard. ⚠️
In this repair process, I show how professional board-level diagnosis is done using:
🔍 Multimeter testing
⚡ Voltage injection
🛠️ Short tracing techniques
📱 Advanced iPhone motherboard troubleshooting
A lot of technicians replace parts without understanding the real cause of the fault. In this case, proper diagnosis was the key. 👨🔧
If you are into:
✅ Phone repair
✅ Microsoldering
✅ iPhone diagnostics
✅ Board repair training
Then this video is definitely for you.
Watch till the end to see how the fault was identified and the repair process explained step-by-step.
📌 Follow Kolafix Mobile Phones for more advanced repair content, troubleshooting tips, and real-life repair cases.
Part 9