Hi thx for the reply yes adb reboot bootloader goes to a black screen, thats the bootloader interface of Hisense. Test out different USB ports for detection, use your headphones if needed and make sure u hear the ding. I had a hard time getting my tv to connect hundreds of times of testing until I got it down. On my tv there are 2x usb 2.0 ports, 1 of which communicates with the tv which is the one furthest from the screen in the back, not the one closest to the screen as they are stacked usb ports. If you need some pics to help, I can help.
I left the fastboot driver I have had tremendous success with. For general adb access use the adb-setup.1.4.3.exe to install the general google driver for adb composite interface or whatever its called... lol
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