Hey Texas, If you know you are in an area with good reception check the following:
1) Are you using an "old" sim card? Or is it one that came with the phone? I was having reception issues and changing the sim cured it.
2) Refresh you APNs. Menu > settings > wireless & networks > mobile networks > Access Point Names > menu > reset to default.
3) Do you have your wifi-calling app "on". On very, very rare occasions (happened to me) it can kill cell reception. If it is on also turn on your wifi (if you have wifi) and make sure the wifi-calling app connection preferences are set to "cellular preferred". And be sure wifi-calling app is on. Give it a few minues and see if cell reception is restored.
There's a few more things to try, but start here.
Let us know what happens.
They've replaced my MOTOROLA DEFY 4 times and this 5th time they're about to replace it they are exchanging it for a t-mobile comet. My phone doesnt let me answer phone calls, the apps are trick, it cuts off on its own, consistenly freezes, calls the wrong numbers,etc. It's a terrible phone and its no wonder why I know little ppl who owns it. It is very difficult to prove to t-mobile that this phone is no good. They will have u reset everything several times and then they'll ask you to unmount you're sd card for a few days. I'm glad that they are finally replacing my phone (although they are charging me a $5 processing fee although I pay insurance). I just hope that the new phone they send is a better phone.
Hey 12, Just a couple observations: First of all the Defy does sell well as they've come out with the Defy +, (with a 1ghz processsor, Gingerbread) the Defy mini and one company, JCB, even sells a customized Defy + . So the phone is popular. If you watched the X-games you saw Casio has its own, new ruggedized phone to compete. And the truth is the vast majority of people are not having a ton of problems. If you go on just about any forum for any phone you will find lots of complaints. It's what forums are for.
Now, your issues: I don't know if you came to this forum when you started having issues, but logic would suggest that if you have had to replace the phone multiple times... it's probably not the phone. Or not just the phone. I have had mine since they were first Intro'd back in Novermber 2010 and have had very few issues. None that I couldn't resolve. And when I upgraded to 2.2 I didn't even have to do a reset.
Techs have a check list to run down when a customer calls to trouble-shoot a phone. People on forums aren't limited to a check list and probably have more experience with weird issues. It sounds like you are going to another phone, but if you still have your Defy and want to walk through some steps happy to try to give you a hand.