Chip Main Memory With The Contents Are In Disagreement Ch341a Jun 2026

Ensure the chip is completely empty (0xFF) before hitting 'Write'.

In your software, look for a "Unprotect" or "Clear Status Register" button. If you've tried different cables, software, and voltages and it still fails at the exact same memory address every time, the flash chip itself may have a dead cell and need replacement. Summary Checklist Check your voltage: Are you feeding 3.3V to a 1.8V chip? Reseat the clip: This fixes 80% of "disagreement" errors. Ensure the chip is completely empty (0xFF) before

You cannot reliably write over a chip that hasn't been properly cleared. the write will fail.

If the software is trying to write to the chip using the wrong algorithm, the write will fail. Ensure the chip is completely empty (0xFF) before