First time that I've been lost about how to fix an android device. In short, I tried updating the my device to the latest cm13 nightly but that ended up causing the Google logo loop (wouldn't boot into animation). I tried various fixes that I know of (tried reflashing with new Gapps, tried flashing a stock ROM no luck).
My issue now is that I can't use 'fastboot' anymore as my device isn't being recognised and so wondering if there is a fix that can be applied from twrp recovery itself.
Also must mention that device has been rooted (though not sure if it still is as I can't boot into a ROM) & has an unlocked bootloader (which can't be locked either).
Thanks in advanced.