ok...here's the deal. I get bad cell reception at my house to begin with. With .320 I got about 3 bars most of the time. I installed .428 and my reception went to 1 bar at best. Most of the time I have nothing, just an "X". I tried several time to swap the radio from .320 using Shrink A OS but nothing happens. It says downloading file but stays that way for over 30 minutes. Then I tried to just copy the CDMA folder from .320 and I get a "error 200" when phone boots up. Any help would be great.
All you need to do is download both OS's and then pull the file out of the cdma folder of the 320 and paste it over the one in 428. And yes you want to overwrite it. Then uninstall 320 from the pc and run like normal. Posted via mobile device
RIM has gotten a little smarter with there sfi files. They have recoded them each time while they try and tweak the file. In other words unfortunately the swap will not work. You may be able to install the 320 sfi file in an OS that is closer to that build. But the 320 will not work in the 428....sorry