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iPhone 7 boot white apple repair
Machine model: iPhone 7
Malfunction:Stuck on Apple logo is turned on.
Maintenance process: The Baseband part is the most problematic machine of the 7th generation. After 6S, the Baseband can’t be recognized, it will boot up Stuck on Apple logo and restart, so it can’t enter the system.
Test whether Capacitor next to Baseband has shorted to ground. If it has been ruled out, it can be turned on basically. However, 45% of Short circuit and Baseband have bad CPU, 45% have bad power supply, and the other 10% are Short circuit. This is easy to handle, and the short CPU Short circuit can hardly be repaired.
Generally, if you don’t have Short circuit, change the power supply first, and then try Update System. If not, there is something wrong with the basic Baseband CPU. Redo Baseband CPU. This one is caused by Baseband CPU Inveracious Soldering. Remove it and do it again.
iPhone 7 boot white apple repair Figure 1.
Baseband CPU of the 7th generation is close to the main CPU. Pay attention to heat insulation when disassembling to prevent explosion of CPU.
iPhone 7 boot white apple repair Figure 2.
After installing Baseband CPU, the machine is normal and the maintenance is finished.
iPhone 7 boot white apple repair Figure 3.
