Ok, when I boot up in android, I can use adb command reboot bootloader to boot in the bootloader.
When i then try fastboot erase system, it's still hangs with waiting for device..
The bootloader is not stuck, i can again boot up android..
it's impossible to open terminal, because the touch is going crazy..
Hmm, i'm trying something else.
I still had 10x tf300 for repair. there are multiple cracked with 5184n version.
I installed the cracked display assembly on this one, then i just can normally use the keyboard.
Will try again in terminal
edit: what command to use in terminal?
Dont forget, i flashed the recovery, but didnt install supersu zip yet..
The strange thing is, when im in the bootloader, i can use fastboot flash recovery command, and write the right recovery.
It's also succesfull (sending recovery OK, writing recovery OK)
But, the transformer hangs in the bootloader after finished (freeze)
When trying to reboot, it's automaticaly going again booting up twrp (enter password)
So it didnt write the recovery, by example if i write twrp 2.7, it still gives me 2.6.3.0 (installed first time)
extra information:
If i'm booted up, and then adb reboot bootloader, then try fastboot commands, they don't work. it keeps saying waiting for devices.., the fastboot commands like flash works for 1 second then the tablet freezes.