Vcc_Main shorting to ground pls help
Can anyone please help me with fixing an s7 edge.
First the Vcc_bat and vcc_main were shorting bit after I removed the big cap under the battery connector, the short on the battery connector was gone. But the Short on Vcc_Main is still shorting.
One day the phone was charging over night, in the morning the blue notification light was blinking and the phone wont turn on. After a couple hours the notification light shows nothing and the phone was dead.
Things I've tried:
I tried to remove the display ic but short is still there so i soldered it back on.
I replaced the U7000 and reflowed the other three ic's on this side.
I removed the cap under the battery port.
I tried the ice spray trick but it seems that nothing is getting hot.
I reflowed the ics on the back. (U7011, U8008, U7009)
After I removed the max77854 PM ic on the back, the short was gone so I ordered a new one, soldered it on but the short went back. I thought maybe the chop is bad so I ordered another 2. But same problem with them.
Update: After reflowing the Max77854 chip, the short on vcc Main is gone. When i put the Battery back on and try to charge the phone, the PMIC S535 is getting extremle hot. The Cpu also is getting hot but not as the PMIC.
Cette question est-elle utile ?