Quote from: boxalex on May 20, 2018, 10:46:39 AM

Quote from: WannaBminer on May 20, 2018, 10:09:42 AM

Quote from: boxalex on May 19, 2018, 04:59:44 PM

Quote from: suchmoon on May 19, 2018, 03:38:37 PM

Quote from: WannaBminer on May 19, 2018, 03:17:39 PM

The miner doesnt get any further than the "startup" fase. Fans running slow and i think the miner does not get online. Therefore i cant find the ip.. any tips/tricks?

Try resetting - https://enforum.bitmain.com/bbs/topics/3957

yep, this should be the next step. Take a pin or needle and hold it as long into the "Reset-Button/Hole" (without much force!) until you hear the beep and see the red light. This should reset the Miner to factory settings. However, in case you have disrupted the upgrade process with unplugging it i'am not sure if this might be enough.... Hope so. Let us kow what happened and how things worked out.

Tried to reset the miner but it didnt work, holding the reset-button for about a whole minute doesnt do anything. It doesnt respond and stays in the warming-up fase..
Do you have another solution?

Read this and locate your error.
https://support.bitmain.com/hc/en-us/articles/220872007-Possible-problems-for-Antminer-Troubleshooting-for-S7-S9-L3-?mobile_site=true&page=8

I readed a bit into it and think this is for you:
https://enforum.bitmain.com/bbs/topics/2891

and a video about it from the bitmain support forum:
http://v.youku.com/v_show/id_XMTU0MDUwNTkzMg==.html?from=y1.7-1.2

Seems you have to manually flash your SD card.

Thanks for your help! I had contact with Bitmain and they told me that the control board is defective so they send me a new control board.
However it is strange that it happend during the upgrade, it probably has something to do with it..