Antenna Prob 3390

[DeLuded]

I have a 3390 and unlocked using calculator for 3310 and the antenna reading is down and says no service unless it stays flat in certain areas of my house...then i can make recieve calls...barely...when i am talking on it the signal is the highest. as soon as i hang up the signal drops to zero again. if i put the t mobile simcard back in i have full strength.....then i'll put the cingular one in and nothing....any help appreciated..thanks.

[danwood76]

It could be a problem with your phones dyplexor
It may not be switching between the two different GSM bands properly

The other thing is maybee the cingular network has poor signal in your area??
did you try that sim in another phone?

regards,
Danny