Help please. Can you run RUU without root access
I'm on 1.85 was rooted but had not unlocked bootloader, I tried updating the software to 4.0.4 but it didnt work so then I used SuperUser to remove root. Still didn't work. I factory reset. still didnt work. I think the problem lies in that I had deleted the AT&T ready2go app. But I am running stock everything without anything else changed.
I think my only option is to run RUU 1.85 and then try to update that way. my question is now that I'm not rooted can I run RUU on a windows computer and will anything bad happen if I'm unrooted?
Sorry if this is a noob question. I tried searching.
Could missing at&t ready2go really be that big of a deal for updating?