I'm new here and I could use some help.*
A few weeks ago I bought a HTC one m7 32 G from a friend, when i tried to do a factory reset I wasn't able to cause the phone would freeze on the Twrp slide to unlock screen. I read and found out that it was the Twrp fault cause it was the version 2.5 00, so I downloaded Rom Manager and tried to update Twrp but to no avail. So I guessed I have to be rooted to do that. The phone has the bootloader unlocked and it says tampered, so i guess that it was rooted at some point.
Also I found something called All in one root kit v4 amongst it's files, so i guess that's was what the person used to root the phone.*
I just received an ota update today and made the download but when I press install the phone reboots and it freezes on the Twrp 2.5 00 screen as usual. Currently I don't have a pc.Do i have to go back to stock If I want the 4.4 ota? Is it worth it? If so I need to fix the Twrp problem, so root for updating /fixing twrp then go back to stock, right? Or can I just update the Twrp and then install the ota? The phone is currently on 4.3 and sense 5.5.Any help appreciated. Thanks in advance.