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KandyKane

macrumors 6502
Mar 23, 2009
367
44
Australia
Turn off iMessages first, otherwise it gets stuck! You might want to sign out of your Apple ID to be safe.
Then wipe it.
 

Macman45

macrumors G5
Jul 29, 2011
13,198
134
Somewhere Back In The Long Ago
Wipe it via settings / general reset, taking care to remove the sim (if any) and leave it at the setup screen.

I've done it several times without any problems at all...Sold my 4S a few weeks back and that's how I did it.
 

iPhone1

macrumors demi-god
Apr 2, 2010
1,136
407
Turn off iMessage, log out of Apple ID, make a backup if you're switching to another iPhone, restore in iTunes to latest firmware. Eject from iTunes before it prompts you to use as a new phone or restore from backup. Remove SIM card.
 
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