I have a dead phone ( with MTK CPU). I found out that phone is dead because the system can not find eMMC. When ( during booting) CLK signal is generated and can be check with oscilloscope?Thanks
why do you need this brother, just change emmc and ask it
I can read eMMC when desoldered. But when soldered on PCB, eMMC can not be detected. So, I want to find out why.There is VCC and VCCQ but can not measure CLK. I do not know conditions under which CLK is generated and if it can be checked on PCB. It is BGA 221
when the phone starts, check with the oscilloscope short-term generation should be
ruhl do you mean the CLK is present for a very short time?
Do you mean it is CPU problem ?
do reball processor
yes, take it off, solder the balls and set back
ruhl I desoldered CPU but there were torn off pads ( on PCB ). It may have been that problem.Thanks for help.
Redm 5 dump need
write firmware in emmc by vender