2, security, as long as you set the password. Most repair shops have no ability to crack the system password, and it is not necessary. Sometimes you will be asked to provide the password for after-sales inspection, otherwise there will be no warranty after sales. If you have something to see on your mobile phone, you can only skip this part of the test or stand on the spot yourself.
3, of course, some mobile phone problems must be taken apart to see what the problem is.
4. Log in to official website to inquire about the reference standard of maintenance cost and the reference price of spare parts outside the warranty period. Method 2: Consult the service center to find out the maintenance cost: Send the mobile phone to the nearest service center, and the engineer will determine the specific maintenance price of the machine according to the product testing results.
What you need first is a quiet environment. Do not carry out maintenance in noisy places. Because this is a mobile phone repair and a precise process, don't let others bother you.
If your machine is a fake, don't use it, because others don't like it. If it is a brand mobile phone or a domestic mobile phone.