1. Enhance anti-virus capability
2.S9 user firmware. It is only for 7010 xilinx control board, not for C5 control board.
3.Secure firmware with signature, SSH port is closed.
4.You can't upgrade previous secure firmware after using this version.

1. Enhance anti-virus capability
2.S9 multi-option user firmware which provides the options that can increase the hash rate or decrease the power consumption. It is only for 7010 xilinx control board, not for C5 control board.
3.Secure firmware with signature, SSH port is closed
4.It is possible to damage the miner if you use a high frequency setting, and also please make sure the miner is in a good situation and the capacity of power supply is enough before you apply a over frequency setting
5.A small number of miners may have low hash rate and instability issue after over frequency. Please use lower over frequency option, or choose "Normal" option, or revert to the previous secure firmware version.
6.You can't upgrade previous secure firmware after using this version
7.Please read the instructions before using the firmware:https://support.bitmain.com/hc/en-us/articles/360023715154
*Please use the firmware in strict accordance with the operating instructions. If the machine is scrapped due to improper use, it will not be guaranteed according to the after-sale policy.

1. Not support C5 control board
2. Reduce hashrate and power consumption, better power efficiency.
3. If the miner is unstable after upgrade. Please close Low Power Enhanced Mode or revert to the previous version

1.Enhance anti-virus capability
2.S9 user firmware. It is only for C5 control board, not for 7010 xilinx control board.
3.Secure firmware with signature, SSH port is closed.

1. Not support C5 control board.
2. Reduce power consumption.
3. Automatically abort the upgrade if the criterion is not met.
4. Please revert to the previous version if the miner is not stable after upgrade.
5. Fixed the hashrate dropping issue

* Support S9 miners except S9-11.85T，12.93T，14T with fixed frequency
* Remove post mac address and remote stop mining interface
* Fix a bug of memory leak.
* Fix to support keep config when upgrade
* Remove unused *.bitmain.com url strings in binary file in fw.

* Support S9 with fixed frequency 650M
* Remove: post mac and remote stop mining interface
* Fix a memory leak bug.

* Support S9 with fixed frequency 600M
* Remove: post mac and stop mining interface
* Fix a memory leak bug.

If S9 miner can not upgrade new fw, please use upgrade this special package to fix the file system, then upgrade new fw again.

* Support S9 with fixed frequency 550M
* Remove: post mac and stop mining interface
* Fix a memory leak bug.

1.Support HashRate Unchanged-Lower Voltage feature.
2.Enhance anti-virus capability. 
3.S9_Hydro multi-option user firmware which provides the options that can increase the hash rate or decrease the power consumption. It is only for 7010 xilinx control board.
4.Secure firmware with signature, SSH port is closed 
5.It is possible to damage the miner if you use a high frequency setting, and also please make sure the miner is in a good situation and the capacity of power supply is enough before you apply a over frequency setting
6.A small number of miners may have low hash rate and instability issue after over frequency. Please use lower over frequency option, or choose "Normal" option.
7.Please read the instructions before using the firmware:https://support.bitmain.com/hc/en-us/articles/360023715154
*Please use the firmware in strict accordance with the operating instructions. If the machine is scrapped due to improper use, it will not be guaranteed according to the after-sale policy.

1. Enhance anti-virus capability
2.S9i user firmware. It is only for 7010 xilinx control board, not for C5 control board.
3.Secure firmware with signature, SSH port is closed.
4.You can't upgrade previous secure firmware after using this version.

1. Enhance anti-virus capability
2.S9i multi-option user firmware which provides the options that can increase the hash rate or decrease the power consumption. It is only for 7010 xilinx control board, not for C5 control board.
3.Secure firmware with signature, SSH port is closed
4.It is possible to damage the miner if you use a high frequency setting, and also please make sure the miner is in a good situation and the capacity of power supply is enough before you apply a over frequency setting
5.A small number of miners may have low hash rate and instability issue after over frequency. Please use lower over frequency option, or choose "Normal" option, or revert to the previous secure firmware version.
6.You can't upgrade previous secure firmware after using this version
7.Please read the instructions before using the firmware:https://support.bitmain.com/hc/en-us/articles/360023715154 *Please use the firmware in strict accordance with the operating instructions. If the machine is scrapped due to improper use, it will not be guaranteed according to the after-sale policy.

1. Not support C5 control board
2. Reduce hashrate and power consumption, better power efficiency
3. If the miner is unstable after upgrade. Please close Low Power Enhanced Mode or revert to the previous version

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.
4. Fixed the hashrate dropping issue

* Fix the MAC address package

1. Enhance anti-virus capability
2.S9j user firmware. It is only for 7010 xilinx control board, not for C5 control board.
3.Secure firmware with signature, SSH port is closed.
4.You can't upgrade previous secure firmware after using this version.

1. Enhance anti-virus capability
2.S9j multi-option user firmware which provides the options that can increase the hash rate or decrease the power consumption. It is only for 7010 xilinx control board, not for C5 control board.
3.Secure firmware with signature, SSH port is closed
4.It is possible to damage the miner if you use a high frequency setting, and also please make sure the miner is in a good situation and the capacity of power supply is enough before you apply a over frequency setting
5.A small number of miners may have low hash rate and instability issue after over frequency. Please use lower over frequency option, or choose "Normal" option, or revert to the previous secure firmware version.
6.You can't upgrade previous secure firmware after using this version
7.Please read the instructions before using the firmware:https://support.bitmain.com/hc/en-us/articles/360023715154 *Please use the firmware in strict accordance with the operating instructions. If the machine is scrapped due to improper use, it will not be guaranteed according to the after-sale policy.

1. Not support C5 control board
2. Reduce hashrate and power consumption, better power efficiency
3. If the miner is unstable after upgrade. Please close Low Power Enhanced Mode or revert to the previous version

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.
4. Fixed the hashrate dropping issue

Firmware for ANTMINER S9j

Release Notes:
1. Optimize over-temperature issue in special cases.
2. Optimize the problem of continuous voltage rise in special cases.
3. Optimize the cycle time of temperature detection, initialize the temperature protection detection mechanism, and optimize the processing process of reading special temperature values. 
4. Optimize the processing flow of power on the hash board when initialization.
5. Remove boot.bin and etc files, enhance reliability about upgrade.
6. Enhance anti-virus capability with new security mechanism.
7. Use new build tools to build firmware.
8. If upgrading the firmware through no keeping configuration file, it is need to configure miner account and miner pools to mine, otherwise(Upgrading through using keeping configuration file), it is no need to configure the miner and miner pools using previous miner settings to mine.

1. Improve temperature data correctness.  
2. Remove boot.bin and etc files, enhance reliability about upgrade.
3. Enhance anti-virus capability.
4. Use new build tools to build firmware.
5. If upgrading the firmware through no keeping configuration file, it is need to configure miner account and miner pools to mine, otherwise(Upgrading through using keeping configuration file), it is no need to configure the miner and miner pools using previous miner settings to mine.