Redmi K30 Pro is a flagship phone released by Xiaomi in March 2020. It has been more than two years since the last release. Some common problems that Redmi K30 Pro itself have gradually emerged. These common faults have gradually been called "common problems" by their peers. Today we are going to tell you a common "common problem" of Redmi K30 Pro - solutions to failures without booting.
Kunming customer sent a Redmi K30 Pro mobile phone to repair. The customer described that the phone suddenly did not turn on after normal use. Sometimes there was no response when it was turned on. The charging light of the phone was turned on, but it was not turned on. Sometimes the phone could turn on again. However, the phone didn't turn on for a long time. The phone would occasionally restart, and the phone would not fall or water in. I went to our local Xiaomi official after-sales repair point to inspect and said it was a motherboard problem. If it was after-sales repair, it could only replace the entire motherboard, which was relatively expensive.
According to the general description of the customer, as a professional master who often repairs Redmi mobile phones, you can tell what the problem is. The Redmi K30 Pro series uses Qualcomm Jiaolong 865 processor, which is quite powerful in heating. If the mobile phone processor is in a high temperature environment for a long time, then this processor is more likely to have problems.
directly remove the motherboard, find cpu, remove the CPU at 390 degrees of wind gun
Remove the CPU and re-process the pads. The original CPU re-plant the tin treatment. It should be noted that you must be careful when disassembling and installing the CPU. Once the CPU is not controlled properly, it means that the entire phone will be scrapped. Therefore, installing the CPU seems simple, but in fact, it requires a high level of effort on the master.
Handle the CPU and reinstall it back to solve all the difficult and complicated problems of Redmi K30 Pro mobile phones, such as black screen not turning on, mobile phone restarting for no reason, mobile phone without sound, mobile phone screen, etc.
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