I have a 238 GB SanDisk micro SD card that I got from BYJUS for a learning program. I've tried the top three methods to remove its write protection—including the command prompt, registry editor, and regular formatting—but none of them worked. Now that my course is over, I'd like to use the card for storage, but I can't seem to unlock it. I don't have an adapter, just a USB connector to my PC. It sounds like the card might be WORM-Locked (Write Only Read Many) from the manufacturer, which means it can't be formatted or decrypted. Is there any other way to use this card, or should I just give up?
3 Answers
Check if your card has a physical write-protect switch, especially if you're using an adapter. Sometimes, it's just a matter of flipping that switch to unlock it. But since you mentioned you’re using a USB connector, that might not apply here.
Another option is to boot from a Linux live USB to see if you can access the card there. Linux tools like gparted can sometimes allow you to manage partitions better than Windows, which might let you format it upon detecting any hidden partitions.
Unfortunately, if the card is genuinely locked with the WORM protection, it might be impossible to unlock. Sometimes, cards go read-only when they hit a write error, and there might not be a way to revert that. If you've exhausted all options, it might be time to consider replacing it, unless the educational material is worth trying to recover.
Yeah, if it's WORM-locked, you're out of luck. Just make sure to back up important stuff in the future!
Have you tried using diskpart to delete the partition and create a new one? Just be cautious, as this will erase everything on the card!
If nothing's been successful so far, this might be worth a shot. But as you said before, it could really be a lost cause with this card's lock.
I tried that, but it only shows one partition!