Redmi K40 automatically restarts need to repair

Redmi K40 automatically restarts need to repair

Machine model:Redmi K40

Fault phenomenon: mobile phone auto restart.

Repair process: got the mobile phone and found that there was no power.After charging the mobile phone, the phone can be turned on, and then auto restart will be launched.

Redmi K40 auto restart Figure 1.

Redmi K40 auto restart Figure 2.

Restart this kind of fault is more common, is the boot key damage to the previous motherboard, after dismantling found boot FPC damaged.

Redmi K40 auto restart Figure 3.

So replace a good boot FPC.

Redmi K40 auto restart Figure 4.

After replacement, install the machine and start the machine for testing.Redmi K40 is no longer auto restart fault repair.

Redmi K40 auto restart Figure 5.