ANTMINER-R4-xilinx-201811121649-autofreq-user-UBI-NF.tar.gz
MD5：94d6f3cee5bcc2b097e85046cbcbb7ad
1. Reduce power consumption.
2. Automatically abort the upgrade if the criterion is not met.
3. Please revert to the previous version if the miner is not stable after upgrade.