The way to fix this is to bypass the operating system and communicate directly with the controller using a Phison MPALL (Mass Production) tool .
(for Phison-based drives)
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The standard Windows formatter or SD Card Formatter will not fix corrupted firmware, bad sectors, wrong capacity, or write‑protected errors on this controller. Only a Phison MP tool can properly low‑level format and reconfigure the drive. The way to fix this is to bypass
Download and extract . Insert your USB drive. The standard Windows formatter or SD Card Formatter
If you just need to quickly remove write-protection but keep your data (rare), Phison Format & Restore is the best lightweight option. However, it does not fix bad blocks, so corruption will return quickly.