Redmi note9 suddenly opens no booting for repair

Redmi note9 suddenly opened no booting, replaced the fault Capacitor, perfectly repaired.

Redmi note9 suddenly opens no booting for repair

Machine model: Redmi note9
Fault phenomenon:no booting is opened suddenly
Maintenance process:
Redmi note9 suddenly opens no booting, charging 0.02 ~ 0.05A cycle.The Connect the power supply source outside the machine board is started up, the current is 0.020 ~ 0.045 cycles, and the plug-in line Connect the power supply is out of port 9008.No abnormality was found in Nand VCC after removing the cover (because a group of 1.8 was missing). When the Nand Reballing was removed, it was found that there was no obvious black line at 1.8V Capacitor on the upper right corner of Nand. After replacement, OK.

Redmi note9 suddenly opens no booting for repair

Redmi note9 suddenly opens no booting repair Figure 1.

Redmi note9 suddenly opens no booting for repair

Redmi note9 suddenly opens no booting repair Figure 2.

Redmi note9 suddenly opens no booting for repair

Redmi note9 suddenly opens no booting repair Figure 3.

269;IMG_259

Redmi note9 suddenly opens no booting repair 4.

290;IMG_260

Redmi note9 suddenly opens no booting repair Figure 5.