The purpose is that the customer has a machine to come over and can take it and solve the problem.
The most common problems with mobile phones fall into two categories.
One is changing the screen.
The second is to repair the motherboard.
Screen replacement mainly includes screen pressing, assembly replacement, disassembly and backlight replacement.
This kind of actual combat with the master takes about 1 month, so you can operate independently with confidence.
The most common method of mainboard maintenance is to replace integrated modules such as wifi module, power module and hard disk.
Simple disassembly takes 2 weeks, and it takes about 3 months to know how to replace it.
In recent years, mobile phone maintenance has become a hot topic, and many theorists have been trained.
I taught an apprentice before, and I didn't even know how to install the machine after studying in the training school for several months.
Every day I teach you a bunch of circuit diagrams that you can't understand on the blackboard.
It's quite tall, but it's not practical, there's no actual combat, and I can't take the order.
To do mobile phone maintenance, you must find an old master who is in the front line every day to learn the real skills.
Mainboard maintenance is not so complicated, just figure out the location of those chips and learn to change them, just like building blocks!
Only by studying with this practical thinking can we get twice the result with half the effort.
After all, the knowledge learned is to solve problems. It's not a mixed score in the exam.
The following picture shows the structure of Apple motherboard chip for reference.