I've used this guide and everything went fine: http://htc-one.wonderhowto.com/how-t...ne-m8-0154444/
I was in the TWRP Recovery and wanted to format the internal sd card for a fresh start, so I formatted. Afterwards I was unable to get back into the recovery, for some reason I can't erase or format recovery using fastboot, erasing the cache and flashing the recovery image again only brings me to a flickering TeamWin screen, then tries to normally boot but nothing is there for it to boot into so it just sits in a boot loop.
I've tried Philz recovery as well. That works for a little bit but after 10-15 seconds the phone tries to boot normally again and I get stuck in the boot loop.
I tried running `fastboot oem rebootRUU`, that brought me to a black HTC screen and gave me the ability to use fastboot. In RUU mode, I erased the cache again and reflashed the recovery, then erased the cache again and rebooted to fastboot. Tried to boot into Recovery and was greeted with the flickering TeamWin logo and a boot loop.
Can anyone give me a hand here?