Hi. I accidently deleted my OS and everything else on my HTC EVO 4G LTE. Now it just stops loading on the HTC logo on loadup. RUU doesnt work for me, it gives some error. The Error on RUU is a signature error. Whenever it gets to the part where it updates the signature, it stops there. When I go to TWRP and I try to use the 'Install' option for ROMs, I get an error going: Error unable to mount '/data' I don't know what else to do, can anyone help?