The message usually indicates that your USB drive's controller (the Silicon Motion SM3280AA chip
. It is a single-chip solution designed to support multi-channel NAND flash (up to 16 CE) and is common in high-capacity, high-speed "portable SSD" style USB sticks. Silicon Motion Understanding the "Memory Bar Full" Error When a drive identifies itself as a "USB MEMORY BAR" with a capacity of sm3280aa memory bar full
. Ensure the version supports your specific NAND flash type. The "Test Mode" Trick The message usually indicates that your USB drive's
Modern NAND flash has factory bad blocks. The controller maps these out. If the area where this map is stored (the "memory bar") becomes corrupt or contains conflicting entries from a previous failed flash attempt, the tool will throw this error. the tool will throw this error.