Hi , im new on this website but i came here hopin somebody could answer my question. I bought a i870 about 1 month ago and everything was fine but then after like 2 weeks ago my phone would turn on and just stay on the i870 screen, took it in to the store and they said your software is outdated so im like can u update it, they said they cant because your phone has no sticker (I bought it from a Friend) Now i spent about 180 on the phone that simply is not broken but nextel wont update it, so is their anyway i can update it myself off the internet or downgrade it to the last firmware? Thanks in advance