Samsung A12 A125f board

greatelias

have tried to change emmc on samsung A125f after taking out the chip,the phone can no longer detect in my pc,have tried on two different boards am getting same results.

madgoeslim

greatelias Hello,
Before you change the eMMC, how is the condition of the phone?
If the phone hang on logo, you can back up the bootloader and unique partition for your new chip.
If you don't have a backup, you can repair your bootloader via rewrite factory image,
but you may lose your imei.

greatelias

madgoeslim before taking the emmc from board, it was just password. I thought I could take chip off, factory reset and solder it back .I usually expect to see mtk port in device manager since it has MT6765 soc,I didnt see it, after factory resetting & soldering the chip it never came on either.

madgoeslim

greatelias So device is in working condition, and factory reset will not touch bootloader area, we can assumed that your bootloader still fine. If your bootloader corrupt, device will detect as MTK USB port, you may try to remove your chip, and connect your board without eMMC, if your device detect as MTK USB port, means your SoC is working good, you not resolder the emmc correctly.

greatelias

madgoeslim thanks