This applies to all ANTMINERs S19, except B3.
1. Download the Official Firmware.
Visit our Antminer S19 firmware page. You’ll see the Bitmain Official Firmware in the first place. Choose the firmware according to your Antminer S19 model.
2. Download the firmware. Use Firefox or Google Chrome as your browser to download the firmware.
The firmware file should not be opened. Save the file to a handy spot on your laptop or computer. Disable the option that opens the file automatically if your computer is a Mac.
3. Go to System > Upgrade in your miner interface. Click “Browse” to find the file and “Flash” to load the file.
Maintain the miner’s power and operation for 20 minutes after the firmware has loaded. It will show “System Upgrade Success” if the upgrade is successful.
Some miners may experience S9 upgrade failures in these circumstances. See what you can do here: