today i tried to setup two Z1s but NONE of them is hashing -.-

tried different firmwares, all the same "

no graph is loading.. "The miner may not boot"

WHY THE FCK???

pools are nicehash..anybody else had the problem?
maybe pendrives are too slow? when i write image i only get about 3-5MB/s...so quite crappy ones

im not stupid. i know how to setup asics but this piece of shit drives me crazy..so time consuming.. thanks god these are not my personal units