I bought a B Stock Mono MK 2 from Thomann. When I save a patch and go then load it back it sounds completely different, mostly noisy and nothing like I saved it. I’ve tried reloading the firmware several times and recalibrating. Firmware 1.2.3 does not work and I’ve reverted to 1.2.2 but still have the same problem.
At first I thought it was teething problems but after persevering I think it’s pretty much unusable. Can anybody help or should I send it back ?
And this morning it’s working fine again but if this happens when I get to a gig I’m F*******KD 
Some people have had problems go away with a freshly formatted SD card. Have you tried this?
I’ll try that next, It’s actually been pretty stable today. Thanks.
i noticed my B-Stock from Thomann had a faulty PSU. It worked normally with a different one.
Mine just came with a usb C cable.
Any Idea what this means. Random flashes and a click noise -
This looks like its trying to get power. Change the port youre plugged into, and if that doesnt change the outcome, change the cable.
That seems to have done the trick and everything is working for now. Bit naughty that the unit shipped with a faulty Cable but I guess that’s the risk of buying B-Stock.
Thanks for your help.