iPhone 6s white apple unlimited restart fault repair

iPhone 6s mobile phone white apple is unlimited, and the detection is found to be caused by the ribbon supply and electricity, re-replenishment, fault repair.

iPhone 6s white apple unlimited restart fault repair

Machine model: iPhone 6s
Malfunction: Stuck on Apple logo Restart repeatedly,Update System However, after the machine fell
Maintenance process: use ITUNES Update System to find Stuck on Apple logo bright, flash the progress bar and report an error 4013.

iPhone 6s white apple unlimited restart fault repair

iPhone 6s white apple unlimited restart fault repair Figure 1.

This situation is mostly caused by problems in Baseband. When the motherboard is removed to measure Diode value is normal near Baseband power supply, the machine that fell will report an error of 4013, and there are many problems in Baseband of Baseband. Remove Baseband shielding cover, observe Baseband, and it will fall off when touched.

iPhone 6s white apple unlimited restart fault repair

iPhone 6s white apple unlimited restart fault repair Figure 2.

Make up Inductor again.

iPhone 6s white apple unlimited restart fault repair

iPhone 6s white apple unlimited restart fault repair Figure 3.

After filling, repeat Update System, and the machine will brush normally.

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iPhone 6s white apple unlimited restart fault repair Figure 4.

After activation, all test functions are normal, and maintenance is over.