Hello mates. I have first gen iphone otb 1.1.1 and after update firmware to 2.0 -> 2.0.1 -> 2.1 i have VERY weak wifi Before update have 1.1.4 firmware and good wifi signal and speed.
I use macbook airport extrime and asus wl600g router and ALWAYS have ping around 1-12000ms and speed around 30-80kbps (i have internet connection 10mbps)

How can i fix it? Please help me guys

My history:
OTB 1.1.1 -> any sim
Update to 1.1.2 -> any sim
Update to 1.1.3 -> Ziphone 2.0 (bootloader 3.9 - original, not modified)
Update to 1.1.4 -> Ziphone 2.4 (bootloader 3.9 - original, not modified)
Restore to 1.1.4 -> WinPWN (custom firmware, bootloader 3.9 - original, not modified)
^^^ I ALWAYS HAVE GOOD WIFI SIGNAL STRENGHT AND SPEED

Update to 2.0.0 -> PWNAGE (custom firmware, bootloader 3.9 - original, not modified)
Update to 2.0.1 -> PWNAGE (custom firmware, bootloader 3.9 - original, not modified)
Update to 2.0.2 -> PWNAGE (custom firmware, BOOTLOADER 4.6)
Update to 2.1 -> QuickPWN (Windows, but use custom firmware compilet on mac with pwnage, BOOTLOADER 4.6)
^^^ WEAK WIFI SIGNAL AND POOR RANGE/SPEED

P.S. Please sorry for my english

I already tryed reset all settings and network settings (with reboot phone), but its not working!
However, on 2.0.2 firmware i try disable edge (using bossprefs) and this kicks my speed up (around 500kbps), but wifi signal/range stand weak.

Now trying use winscp to download movie from iphone, and get speed 12kbps maximum! Just stay around my router and get that speed Move to 5-10 metres from my router and totally lose signal