These are the common FAULTS in cell phones (diagnostics and solutions)

In chapter 15 of the basic cell phone repair course I will show you the common FAULTS in cell phones (diagnoses and solutions)
START: 00:00
Cell phone does not vibrate: 00:52
Cell phone with low Wi-Fi signal: 03:06
Cell phone does not activate wifi: 05:36
cell phone with low phone signal: 06:53
cell phone with camera failure: 12:41
cell phone with software flaws: 16:31
how to install software tip: 19:04
second season of the course: 20:43