I just wanted to let the community know I purchased (via Bank Wire confirmed) some Bitmain S19j pros from Sesterce Mining  (https://mining.sesterce.com/products/bitmain-antminer-s19j-pro-bitcoin-100th-s/?wpam_id=3) back in early Feb 2021 for July shipment for about $5400.00ea. (Yea great price before things and prices on these machines went crazy-they are $13K+ now).

They contacted me recently and said they will not be able to fill my order as the prices have went up and its their prerogative to cancel. I still havent received any $ back from them re: the automatic one sided cancellation after providing my details to them again to transfer back $ to me.

BUYER BEWARE!

I bought I Canaan Avalon 1246 from Blokforge.

It hashed for 1-2 days then died. No hashboards working.

I contacted them and after a week or so got new firmware emailed and then installed it. Now at least 2 or the 3 boards are hashing (so not losing 100% $ and time).

They passed me off to Canaan directly to get warranty work. Spoke with Canaan rep directly in China through whatsapp and he said he would send a new hashboard to Blokforge and then Blokforge would send to me to install myself.

The issue is:

1: Im new to asic mining;
2. Ive never repaired or even tore down an asic miner;
3. There is NO videos on the 1246 or something even close I can find doing it on youtube or elsewhere that Ive searched.

Help please!


Updated 4/25/21:
I didnt get anywhere with Canaan. I got in touch with tech support via whatsapp but they said a hashboard was bad and they were sending a new one by end of March. It still hasnt come.

Yes I ordered to 90Th and Blokforge also bait switched me but did give me option to cancel order. I opted to keep the 85TH unit instead and it is earning .0005BTC avg per day now.

I tried to take my canaan 1246 apart. Pulled off fans and the cover on top and wiggled things around with my hands that I could and then put it all back and IT STARTED WORKING miraculously. Im not sure wtf I did but that little wiggle caused some connect with that bad hash board to connect with control board and it started working 3 boards now. Looked at a video of a bitmain s19 repaitr an I think it may be similar but I dont have the tech skills yet to do it. I made a video of what I did do though but it isnt uploaded anywhere yet.