I screwed up, need to reflash

[unconsidered]

I was following an online video tutorial when I got my phone in; I didn't understand how slow my phone was, for when I tried to take a look at it when it was downloading updates it didn't screen on so I thought it turned off and thus I held the power button to turn it on; I must have actually turned it off when it was still updating.

Now I got some corrupted files that I can't fix in the system (believe me I've talked to my linux friends).  So is there any base phone software anywhere around here where I can img on a flash and try again from scratch?  Or should I just get a new phone?