Losing wi-fi signal followed by phone signal constantly

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Jan 16, 2012
Brief history of my iPhone (3Gs / 16gb / ios 5.0.1 / iPad Baseband 06.15.00)

-Restored in iTunes;
-Jailbroken in Redsn0w 0.9.10b3 using the same firmware as restoring;
-Unlocked installing Ultrasn0w in cydia;
-Installed SAM and SAMprefs in cydia;

Now, when I run an app. the phone signal go to one bar, followed by instantly wi-fi signal lost and after the phone signal go to Searching... with no wi-fi signal either.

40 seconds after the signal returns and couple of minutes later the same occur, just like a cycle.

Already tried to uninstall SAM and SAMprefs. Ultras0w I need to use my sim carrier.

Any ideas? I would appreciate!

Jan 16, 2012
Is there a way to fix location services error when in iPad baseband 06.15.00?

When I use any app. that works with location services, the signal is lost (wi-fi and phone).

Didn't find any tutorials on the internet... is it possible to fix this already? Or even downgrade the baseband?