I got a brand new 2G from T-Mobil and did the unlock and jailbreak with PWNAGE 2.02 / FW 2.0.1.
Since then the carrier signal is very poor with my prepaid card. I took my old 2G and did the same procedure but have the same poor carrier signal. With poor I mean 0-2 Bars. If I open the settings, the bars grow up to 4/5 bars until I close the settings.
So this poor signal quality is confirmed on both of my 2Gs with different carriers. If I put these SIMs in an SE K800i I have full 5 bars. With 1.1.4 the signal quality was much more better!
Any idea what causes the poor signal after pwn?
Best wishes, Birke
EDIT: Another thing to mention:
If I activate the airplane mode and switch back to normal mode the signal strength is perfect. It has full 5 bars. But after aprox. 1-2 minutes the signal strength decreases to 1-2 bars and will stay with this poor signal.
If I do the game with the airplane mode again, it will have again full 5 bars until the 1-2 minutes are over and it decreases again to 1-2 bars.
This is on both of my 2Gs! This happen with different carriers / SIM-cards. Other phones like my K800i has always full 5 bars. Every time.
I think it is only a software problem, but canīt tell if Apple's FW 2.0.1 or PWNAGE is crap.
Should I try to use the 3.9 Bootloader instead 4.6? Erasing Baseband?
The best version / unlock I ever did with the 2G was ZiPhone 3.0 with 1.1.4 FW. The signal was always perfect and the UI never as slow as now. (Sorry that I have to say that, but it is true.)