Hardware problems: It is recommended to send the mobile phone to the mobile phone shop for professional repair, if the mobile phone is within the warranty period, choose after-sales warranty or shutdown.
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2, wiring: disassemble the machine to check whether the mobile phone wiring is loose, if it is determined that it has been burned out, you can buy parts online to replace it
Your mobile phone screen is broken, go to after-sales repair, if it is free repair, if it is insured, it will cost money.