1. Applicable mode

1.1 M50s, M31S, M30s, M32 etc.；

1.2 High mode can be only supported, also require the input voltage over than 230VAT;

1.3 Teaching video: https://youtu.be/L-gpDzD9YCU

2. New version highlights

2.1 Support Pool TLS safety transportation protocol;

2.2 Support Low mode;

2.3 Strengthen the safety of firmware: device will reboot 2 times during upgrading,the version name will be end with"NeedUpgradeAgain" at 1st time，please wait for 2nd reboot, after that it will be changed to target version;

2.4 Fixing other bugs;

2.5 Online upgrading to version earlier than 20210602 is prohibit，suggest to match with tool whatsminertool-8.1.34；

2.6 The WhatsMiner API version is V2.0.5;

2.7 If your whatsminer firmware version is newer than this firmware version, please do not upgrade!

1. Applicable mode

1.1 M21S, M20S, M21,etc;

1.2 High mode can not be supported;

1.3 Teaching video: https://youtu.be/L-gpDzD9YCU

2. New version highlights

2.1 Support Pool TLS safety transportation protocol;

2.2 If the miner firmware is before 2021, it is recommended to upgrade the firmware after SD-card flashing;

2.3 Strengthen the safety of firmware: device will reboot 2 times during upgrading,the version name will be end with"NeedUpgradeAgain" at 1st time，please wait for 2nd reboot, after that it will be changed to target version;

2.4 Fixing other bugs;

2.5 Online upgrading to version earlier than 20210602 is prohibit，suggest to match with tool whatsminertool-8.1.34;

2.6 The WhatsMiner API version is V2.0.5;

1. Applicable mode

1.1 M10S, D1 etc；

1.2 Applicable to H6 control board；

1. Applicable mode

1.1 M3, M2 and M1 only；

1.2 Applicable to H3 control board；

1.3 Need to use old version of Whatsminertool to upgrade it;