how to replace emmc for Xiaomi Redmi note 4/4x Qualcomm.
Please follow this guide carefully :
Do Identify Device Again,
Go to Special Task, Disable DM verity and force encrypt with Sig Overflow
After this, you can reboot the device.
6. If you want to flash global rom, make sure you have unlocked the bootloader at first, otherwise, you will get wifi problem.
Good Luck
Please follow this guide carefully :
- Prepare new emmc, just do nand test and factory erase after Identify emmc
- Resolder emmc to board, plug USB, and the device will be stuck in emergency mode(9008)
- Open Ufi Android ToolBox
- In Qualcomm tab, please select a Brand, model according to your device
- This is Important step: Load developer china rom, uncheck Restart after flash
Do Identify Device Again,
Go to Special Task, Disable DM verity and force encrypt with Sig Overflow
After this, you can reboot the device.
6. If you want to flash global rom, make sure you have unlocked the bootloader at first, otherwise, you will get wifi problem.

Good Luck