If you are selling your phone, you must perform a Factory Reset to delete all of your personal information from the device prior to sale.
Factory Reset your Android Phone
Go to your phone’s Settings, then navigate to System > Reset options and select Erase all data (factory reset); you will usually need to confirm your choice and enter your password or PIN before the reset begins.
Factory Reset your iPhone
Open Settings
Tap General
Tap Transfer or Reset iPhone
Tap Erase All Content and Settings
Enter your passcode or Apple ID and password
Tap Continue
Follow the prompts
Tap Erase iPhone
Related posts:
What To Do Before Selling iPhone
Mobile Phones
Looking to sell used electronics? Here’s how!
How To's
Contribute to Saving Our Planet by Selling your Old Electronics at Gizmogo
Sell Your Electronics
Selling Your Old iPhone? Here’s How You Can Get The Best Price
Go Apple
Sell My Phone For Cash - Transforming Tech Into Opportunity With Gizmogo
Phones
The most controversial question – Is Samsung or iPhone better
Go Android