Some modern FC1179 drives use low-quality QLC memory which can be very difficult to recover or repair perfectly.
However my flashdrive capacity shrunk from 128gb to 30gb. Device Type: Mass Storage Device. FirstChip FC1179 MpTools V1.0.7.2 (2024-02-21) - USBDev.ru firstchip fc1179 firmware full
It looks like you’re looking for the for a USB flash drive controller FirstChip FC1179 . Some modern FC1179 drives use low-quality QLC memory
or "Lead Normal" to ensure the controller is completely reset. firstchip fc1179 firmware full