|
Title: Antminer L3+ control board stopped working Post by: immolated on December 23, 2020, 09:10:42 AM When I power my miner on, I can't open the web interface, nothing shows up on IP scan, ethernet lights up but no other lights (red/green) flash. Fans stay on super low and never spin up. Does not respond to holding reset or IP button factory reset methods (tried all 3 reset methods). Tried different PSU. Tried loading new firmware on an SD card, but when I insert the SD card and power up the board, I do not get the simultaneous red/green lights coming on as you are supposed to when it signals its loading new SD firmware. Nothing happens except flashing ethernet lights and the solid red 5v/3v power LEDs.
I've narrowed it down to the BB board itself (the smaller removable board with ethernet port), because if I pull it off the pins and swap in a different miner's "BB Black v 1.8" board, it works just fine. I did some probing with a voltmeter and every point that a working board has voltage, the non-working board also shows voltage. The TI A8 Processor has power just fine. Any other options or troubleshooting I can do? Title: Re: Antminer L3+ control board stopped working Post by: onegiantcock on December 26, 2020, 04:50:10 AM FWIW a used L3+ control IO w/BB on eBay for $25.
Title: Re: Antminer L3+ control board stopped working Post by: immolated on December 26, 2020, 06:28:05 AM Got one, but I'm a fixer, more interested in what went wrong and how to fix it. I found an S9 guide that used Putty and a serial connector to force a new flash of the ROM, but I can't find anything for L3+ boards (no explicit TX/RX pins). Anyone know how.
Title: Re: Antminer L3+ control board stopped working Post by: saschamo on May 01, 2021, 11:51:19 AM Hi,
did you found a solution? I got the same problem Thanks Sascha |