If you can’t upgrade firmware or firmware upgrade is failed, check the following possible causes and solutions.
- Incorrect firmware version
Ensure you are upgrading the correct firmware version based on the miner’s model.
- Security firmware v.s. non-security firmware
If the miner backstage shows “System Upgrade Failed - Cannot Find Signature!!!” It means the firmware you are upgrading is not a security firmware.
- An incompatible browser or a browser with excessive cache
Use different browsers to test and we recommend Google Chrome or Firefox. Clear the cache. If not succeed, use a different PC or laptop.
- The miner has been hacked
Read this article for more information: Viruses, malware and remote attacks on Antminers – How to prevent and remove them?
5. The control board has an issue
Solution: a. reset the control board; b. use the SD card to recover the program; c. replace with a good known one to test.
If you have more questions, contact us for further assistance.
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