ROI ASIC / Knowledge base / How to return an Antminer to stock Bitmain firmware
How to return an Antminer to stock Bitmain firmware
Rollback is built into the firmware and takes about a minute; here is the exact path.
Open the firmware web interface, go to System, then Backup and Restore.
Press Return to stock firmware and confirm. The miner reboots into the original Bitmain firmware, warranty terms intact.
For a locked or bricked board that will not boot, use SD recovery or factory unlock - contact support for the verified image for your model.