Tried spamming restarting the miner and not luck. Keep getting these errors:
[2014-11-16 21:49:12] Pushing work from pool 0 to hash queue
[2014-11-16 21:49:12] Got work from get queue to get work for thread 0
[2014-11-16 21:49:12] BET0: Sent work 23 to board 0
[2014-11-16 21:49:12] USB: BET0 read1 buffering 54 extra bytes
[2014-11-16 21:49:12] BET0: Nonce 000000ff from board 16, asic 12 for work 22
[2014-11-16 21:49:12] BET0: Nonce Fix Failed
[2014-11-16 21:49:13] USB scan devices: checking for BET devices
[2014-11-16 21:49:13] BET looking for and found BET 10c4:ea60
[2014-11-16 21:49:13] BET looking for BET 10c4:ea60 but found 0424:ec00 instead
[2014-11-16 21:49:13] BET looking for BET 10c4:ea60 but found 0424:9512 instead
[2014-11-16 21:49:13] BET looking for BET 10c4:ea60 but found 1d6b:0002 instead
[2014-11-16 21:49:13] USB scan devices: checking for ICA devices
When I tried CrazyGuy's build from yesterday, I can't even see the miner now in Minera.
Maybe 1 or 2 days more of trying to get it to hash then to the market to load this piece of crap.
There is obviously something wrong with the miners, does'nt seem like many people are getting these. I guess people have to be lucky , to get properly working one

If you left debug and log file on, you may have filled up your SD card.
I checked the log file through SSH, it didn't have more than 1MB , deleted that and cgminer started right again , now i have to get it running by spamming restart again and hopefully it will last longer.
By the way , just came home and the other 2 miners still nowhere to be found :/ i thought they would come today already , but no luck.
Would you happen to have a BE controller to use instead of the pi? If so I would try using the BE controller and bfgminer 4.10 as a proxy. I had that setup before I got the USB to UART adapters and to be honest it was rock solid. Running the prismas off of minera and the USB to UART adapters seem to be a little bit more temperamental then just using the BE controller with bfgminer. I tried multiple versions of bfgminer and 4.10 was really solid. If you need any help or guidance setting it up I will do whatever I can with my limited knowledge to help you.
Nope

I dont have BE controller. Unfortunately i didn't thought of that when i was buying prismas. I was naive enough that the miners would be easy enough to setup with the USB controllers...
And they are nowhere to be found in the UK , was thinking about getting one and try it. But no idea where to look for it.
I'm quite familiar with setting up the proxy from previous miners , but thank you for the help anyway .