Quote from: Make-A-Buck on July 26, 2017, 06:28:11 AM

Quote from: Moonrackers on February 28, 2017, 04:29:22 AM

Yup, I've tested it. And it works. Grin

S9 controller board, flashed with R4 autotune firmware from Bitmain's website, and a R4 hashing board.

http://i65.tinypic.com/f42r13.jpg

http://i66.tinypic.com/2hhlj4j.jpg

http://i65.tinypic.com/ob0awx.jpg

http://i65.tinypic.com/2vaicqw.jpg

http://i68.tinypic.com/6i9zxl.jpg

http://i63.tinypic.com/333y8zt.jpg

My R4 was humming right along since Dec 16,2016, had already paid for itself & made 1k profit... Then on July 12, 2017 over the course of 24 hours, hash rate dropped from 8.1 to 4.1, so I made the mistake of trying to cold reboot the R4 - now NOTHING. The fan spins at a very low speed and nothing else happens.
Is there ANYWHERE in the USA that will repair these units?
Thanks all.

Make-A-Buck

Moonrackers, THANK YOU BIG TIME for sharing this info!!!
My R4 bit the dust back on July 12, 2017 right b4 I left on a 3 month long vacation!
I had no time to deal with the problem until 2 weeks ago.
Once I stumbled on your post, I went hunting for an S9 controller board & found one for $100 USD.
Installed it, didn't plug in the hashing boards, powered it up, the fan went slow, then fast like it used to b4 it crashed...
Was able to see it on my network & used the Web GUI to feed it my backup config, then flashed the firmware with...
Antminer-R4-all-201704270142-autofreq-user-Update2UBI-NF.tar.gz
from the Bitmain website. Rebooted, and sure enough, it now came up as 'Miner Type: Antminer R4' instead of an S9.
Powered it down, plugged in the two hash boards, powered it up, and about 5 min later, it was BACK ONLINE & hashing at over 8.04THs!
I can't THANK YOU enough for posting this possible fix for a dead Antminer R4. TWO THUMBS UP!!!
I hope others will find this info and give it a try. Heck for only $100 USD it was more than worth the gamble!
Cheers man!