First, open the annotation diagram of Xinzhizhao software to find the baseband power supply and baseband CPU, and then remove the baseband CPU to replant tin.
After the iPhone XR falls,no Baseband Version has no signal. Redo the Baseband CPU and repair the fault.
iPhone XR did not respond to charging, r6201 to c6312 were disconnected, and Jump wire was finished.
iPhone XR mobile phone doesn't charge, and the fault is fixed after replacing the new charging chip.
The recording function of iPhone XR mobile phone can't be used, and the caller can't hear it. After testing, it was found that the MIC of charging connector was damaged, and the fault was repaired after replacement.
iPhone XR phone cannot activate troubleshooting. After testing, it is found that there is a problem with NFC circuit. After replacing Capacitor, the fault is repaired.
iPhone XR suddenly used no display, and the mobile phone turned on no booting. After detection, Capacitor was found to be broken, and the fault was repaired after replacement.
iPhone XR high temperature back no booting, charging without current, detection found that PMU was damaged, and the fault was repaired after replacement.
iPhone XR has no sound. After testing, it is caused by the damage of one of the ring amplifier chip and vibration control chip, which can be solved after replacing the chip.
