I bought a second hand iphone and it is stuck on the activation screen lock help me?

SOURCE: GPS Not Activate in my iPhone 3G 2.1 Firmware

yes you can jailbreak your iphone and upgrade to firmware 2.2 this will unlock your iphone to any sim card and shoud enable your gps again ask this bloke at the link click here he is a genius with everything to do with iphone's

SOURCE: My iPhone is disabled for 4,566,757 mintues, HELP!

The only way is to reflash a new firmware and wipe the code as well as the phone clean.
To do this start itunes on your computer. Then connect your phone to the computer. Once itunes detected your phone hold the POWER and the HOME buttons down at the same time for about 10 seconds. Once the phone flashes off, let go of the POWER button and keep holding the HOME button until you see a message on the itunes telling you that your phone is detected and needs to be RESTORED. Follow directions and it will do its job. I appreciate your positive vote. Thanks

SOURCE: iphone 8G forgotten password to unlock phone

The only way to bypass it is to put it into recovery mode. You can do this by turning it off and then holding the home button down then plugging it into the computer with itunes. The one you sync with. The phone will be in recovery mode, start iTunes and then you will be prompted to restore your phone. If you need further assistance, please ask.

Christopher Lozada

• 1140 Answers
• Posted on Aug 04, 2011

SOURCE: I bought a second hand iphone 3g now asking

You can unlock your forgotten phone password by downloading this free software,no need going to apple shop and paying the service.

IPHONE PASSWORD REMOVER

Be sure you have a good working USB cable

Here's the instruction

* download the link above
* locate the file (usually on download folder) and extract the file
* run the program,instruction is already given on screen so you don't have to worry on the procedure.
* reboot your phone
* DONE


Hope this solution helps...

SOURCE: iphone is disabled

I read a tutorial on disable iPhone backup password, hope it help you:
http://www.windowspasswordsrecovery.com/iphone/disable-backup-password-in-itunes.html