Flashing firmware completely overwries the NAND flash blocks. All data on the drive will be permanently erased.
Before downloading any firmware, you must verify that your USB drive actually uses the SSS6697-B7 controller. Attempting to flash the wrong firmware will permanently brick your device. Sss6697-b7 Firmware Download
Before attempting any firmware download, you must confirm that your device uses the exact microcontroller. Running tools on mismatched hardware can permanently brick the memory chip. Flashing firmware completely overwries the NAND flash blocks