Base band version and hardware version says unknown

[rishisuri]

i tried flashing reliance india prl file using qpst build355 on my samsung epic, after the re-boot it is not working shows in the airline mode. there is a circle with a line on the point wher signal bars appear, and the base band version and hardware version shows as unknown.
tried flashing the original samsung rom again using oden but after that also it has the same problem can anyone help me with this.