Security firmware prevents mining machine poisoning

• Please upgrade to the secure firmware released by Bitmain official website (hereinafter referred to as "firmware").

• Do a good job of network isolation.

• Change the mining machine password.

1. Methods for determining secure firmware

1. Firmware name: The firmware must be released after December 20, 2019 and have sig. (link attached later), as shown in the figure.

3. Official website description: The official website firmware description must include the words "security protection capability".

2. Upgrade Method

1. Single firmware upgrade tutorial: https://support.bitmain.com/hc/zh-cn/articles/360013786654

2. Batch firmware upgrade tutorial: https://support.bitmain.com/hc/zh-cn/articles/360023257293

3. Notes:

1. (Important) The firmware has been rigorously tested before release, but the test cannot simulate all mining farm environments. Therefore, please try running the firmware on a small number of mining machines first, for example, 10-30 mining machines should be upgraded and run for at least 24 hours, and then upgrade the firmware in batches after confirming that there are no problems. If you encounter any problems, be sure to stop upgrading the firmware immediately and contact customer service for assistance.

2. FAQs about firmware upgrade: https://support.bitmain.com/hc/zh-cn/articles/360022842413

3. Firmware download link: https://service.bitmain.com.cn/support/download

• Call hotline: 400-890-8855

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Bitmain Customer Service