Can I buy a used (T-mobile, Sprint, …) Android Phone and not activate it but still use it as a development phone? Or do I have to use the Google unlocked phone at 399.00?
As long as you can get to the Android home screen you can use it as a development phone. I have several old phones I use with the SIM card removed and they work fine.
When you first power on the phone after a factory reset you’ll need a working connection to the phone company to get past the setup screens, but after that you don’t need it. I’ve heard of unlock codes that remove even that requirement but I don’t have a reference for you.
I have been working with an LG Ally, (sucker price $30 at Sam’s club November 2010, it was nearly $100 out the door,) and lament that I didn’t wait to get an Nexus. The LG and Verizon Device Drivers are confusing. There are FOUR of them?
I don’t know the exact number but it looks confusing.
//I’ve heard of unlock codes that remove even that requirement but I don’t have a reference for you.//
There are several online vendors who are engaged in unlocking mobiles to carriers.. here is one http://www.mobileunlocksolutions.com and a free guide http://www.mobileunlockguide.com which has instructions how to network unlock your phone…