custom FIRMWARE (no Fee from mining!) for download


Please donate any amount. It is all what you pay for it! This firmware is without any mining fee!

BTC Adress for Donating: bc1qfu6y0u2denshwy8lucn7q6t9mdhtyvmjucnavq

DONT forget add your your email in text transaction !



2) You will receive URL

After donating of any BTC amount you will receive open URL for downloading your Firmware

Donation first, Download firmware after 



3) Download and upgrade

After downloading the Firmware file you can instal it on your miner machine and Enjoy Best firmware ever without mining fee!



Specification of Firmware

for Antminer Z9



  • Custom Firmware for: Antminer Z9 (all versions)
  • Version 2.20 - 2020-04-10!! (BigMiner Firmware, without Fee from mining!)
  • Efficiency: 30-40% (Better then Blissz firmware!, Better then
  • UnOfficial Firmware for Antminer Z9 no Fee from mining download
  • Recommended, at your current firmware, set the miner frequency at low before flashing.
  • Download the custom firmware. (dont unpack it)
  • Flash by going to System, Upgrade, Flash new firmware image and select the custom firmware.
  • When the reboot is complete: please clear your browser cache or use ctrl + f5 if you dont see the pages  properly loaded
  • Then check the advanced settings page and set the global values to the lowest voltage setting and lowest. From there increase your frequency to see how high you can go at the lowest voltage setting.
  • Start tweaking some more. See the profile suggestions below


In case of any problems you can write to