RSD lite doesn't see my XT910

I think I read everything and still cannot find why RSD lite doesn't see my RAZR.

For now I tried 3 different PCs, 10 cables, many more RSD lite installations and nothing.
AP Fastboot says Battery is OK, USB connection too. PC sees Mot Single ADB interface. Fastboot (fastboot devices) sees device when connected.

What I want to do? Flash Resurrection Remix, but tried it on 4.0.4 and got into bootloop, so want to flash 4.1.2 before trying again. However I cannot to do it...
My...

RSD lite doesn't see my XT910

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