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Title: Antminer S7 not working anymore after firmware upgrade Post by: Lucjver on November 02, 2015, 04:06:19 PM Yesterday I upgraded my 9 Antminer S7's batch 1 with Bitmaintech's newest firmware release. After a restart 6 of them worked fine. But the other 3 first seemed to work at normal output (appr. 4850 Gh/s), but within a minute speed reduced to almost 0 Gh/s and remained there, while the red light on the back kept on flashing. There has been no way to get them up and running normally again (reboot/ reset nothing helps) and I don't know how to reinstall the old firmware again, because I don't have it and it's not in the support section on the Bitmaintech website. Does anyone have similar experiences and/ or solutions or can anyone help me to get the old S7 firmware?
Title: Re: Antminer S7 not working anymore after firmware upgrade Post by: Tupsu on November 02, 2015, 07:02:29 PM This is not a problem with the software.
My 20x S7 controllers go nicely with new S7 4.86 software. Some with 2 cubes. Title: Re: Antminer S7 not working anymore after firmware upgrade Post by: Biodom on November 02, 2015, 07:28:15 PM Yesterday I upgraded my 9 Antminer S7's batch 1 with Bitmaintech's newest firmware release. After a restart 6 of them worked fine. But the other 3 first seemed to work at normal output (appr. 4850 Gh/s), but within a minute speed reduced to almost 0 Gh/s and remained there, while the red light on the back kept on flashing. There has been no way to get them up and running normally again (reboot/ reset nothing helps) and I don't know how to reinstall the old firmware again, because I don't have it and it's not in the support section on the Bitmaintech website. Does anyone have similar experiences and/ or solutions or can anyone help me to get the old S7 firmware? strange and unlikely to be software; make sure that they did not jump on some other IP address. check your pool addresses, then maybe reset or replug your router. plus, maybe switch them off for 20 min, check all connectors and ethernet cable connections, then try again. Title: Re: Antminer S7 not working anymore after firmware upgrade Post by: Lucjver on November 04, 2015, 09:16:18 PM Thanksn for all advice. The problem has been solved. It seemed that it was caused by the 3-pins fans I used instead of the standard fans. The upgraded firmware has added protection against fan malfunction but didn't recognize my fans and thus shutdown the miner.
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