unlock my very old iPhone 3GS
Many years ago, I`ve bought an iPhone 3GS in the US and now I´would like to prepare it for my son for his first mobile device, but unfortunatelly I can´t find the AT&T sim card anymore. I´ve installed a new battery and now the activation is gone, and without an AT&T sim card, I have no chance to use this device.
I´ve also tried to unlock this device via AT&T unlock page, but since one week there are network issues?!
Does anyone know how to get in contact with someone or how to activate the iPhone in other ways?