Originally Posted by smokin901
Open Dialer and type this *#*#4636#*#*
Select the drop-down that says "Phone Information". From there, scroll down to where it should say "WCDMA preferred", and change it to "WCDMA only". Use the back key to get out. now check if your phone is able to detect 3G network. once it connects to 3G and you see H.
Airtel has worst network in mumbai so for phone to stay connected on 3G network signal strenght should be above -125db or else phone will switch back to 2G network. may be because of low signal stength you are not able to get 3G
I tried this method to force WCDMA mode on my Samsung Captivate, but had no luck getting the 3g symbol on my phone. Instead I still have the E symbol for edge.
I have been trying since Saturday to get Airtel to put their 3g service on my phone, but had no luck. I went to a Airtel shop yesterday here in Manipal to get 3g manually activated on my phone. That didn't do any good as well.
I believe like you said that the problem isn't the activation aspect of 3g, but rather the signal strength for 3g is too low to be picked up by android phones. When I went to the Airtel shop the other day I noticed that most of the people there with working 3g phones had either a blackberry or iphone device.
If this is actually the case, I have no choice but to switch to another cell phone service provider who provides 3g service with a "android-friendly" signal strength. Is there such a thing?