E5663 30.1.B.1.55 problem

hello to my fellow e5663 users

just have a question

i have a problem with this new firmware version (.55). somehow, my device cant be detected when plugged into computer. ive tried redownload this firmware manually, as i previously upgraded my firmware using one of sony mobile update software (cant remember the name unfortunately). ive done reflash this new firmware, but the result is still the same.

Sony m5 e5663 software for EU(Romania)

I Want to flash Android 5.0. On 5.1 version doesn't exist double tap to wake. What software generic i need to flash for Europa(Romania)? Someone know if Android 6 is coming soon? I don't want to flash it for just 1-2 weeks.