in a Windows Command Prompt (Admin) to scan for and fix file system errors. Reformatting
This is a common hallmark of cheap, fake SD cards (often branded as Kingston or SanDisk but bought from unreliable sellers). These cards are programmed to report a high capacity (like 128 GB) but actually contain much smaller, low-quality chips that crash once they reach their true capacity, often reverting to showing uupd.bin . uupdbin sd card
sudo dd if=u-boot.bin of=/dev/sdX bs=512 seek=1 conv=fsync in a Windows Command Prompt (Admin) to scan
: Standard tools like Disk Drill or R-Studio often cannot see beyond the 2GB "Safe Mode" partition because the controller is physically blocking access to the rest of the NAND chip. uupdbin sd card