In older devices, the eMMC chip can wear out (exhaustion), making it read-only or completely unresponsive. Common Solutions and Troubleshooting
Outside, the city rain began to drum against the glass. Elias picked up his heat gun. To fix a STATUS_MMC_ERR , you couldn't just talk to the software anymore. You had to perform surgery. You had to heat the solder until it cried, lift the chip from its grave, and hope that beneath the surface, the ghost was still waiting to be woken. sp flash tool status mmc error