Já faz muito tempo desde que você pediu, mas para ajudar os outros,
Eu acabei de fazer alguns hacks profundos (ChkFlhs rsrs) e matei meu sandisk que estava com trava de gravação, mas era meio que um vegetal,
No sandisk fóruns alguém diz que ele entrou em contato com o sandisk e eles responderam,
I understand that you are getting write protection error while accessing your Cruzer flash drive. The flash drive has detected a potential fault and has become write protected to prevent data loss. There is no method to fix this. You will need to backup your data and replace the flash drive.
Our team of developers is in combination with the OS developers looking into a solution to resolve this issue.
Please note that only a minor percentage of users are experiencing the write protection issue and these are the customers posting on the internet to find a solution.
Ele também diz:
SOLUTION 1: Return to where you bought and get a refund (as others usb drives might have the same issue)
SOLUTION 2: Contact Sandisk costumer service and get a refund, for the same reasons
Boa sorte enviando seu flashdisk para sandisk:)