
Currently many types of smartphones on the market. However, one of the best is the iPhone. Smartphones made by Apple company is prioritizing the convenience of its users. However, not a few also who moved from iPhone to Android for several reasons.
You already feel bored with your iPhone and the thought of selling it? Before you install ads and promotions everywhere, you should do this first to make sure you have deleted all important data from your iPhone. Here's 8 other things you must do before selling the iPhone.
1. Backup your iPhone

You can backup your iPhone using iCloud or iTunes. Choose the method that works best for you.
2. Delete the photo from the Camera Roll folder
Easy way, Connect iPhone device to your computer and open Image Capture or iPhoto. Select all photos and click Import All. In iPhoto, select "delete photos from iPhone" after import process.
In Image Capture, if the "Delete Items After Downloading" option no longer appears, try this: turn off "Photos" in iCloud on your Mac and iPhone, then restart both devices, and you'll see the delete button.
3. Disable iMessage
How to open the Settings app> Messages> iMessage> turn off to off.
4. Disable FaceTime
How to open the Settings app> FaceTime> switch to off.
5. Disable your iCloud account
How to open the Settings app> iCloud> tap "Sign out."
6. Sign out of Apple ID
How Open the Settings app> App and iTunes Store> tap on Apple ID and sign out.
7. Return to factory / Factory Reset settings
How Open the Settings app> General> Reset> Delete All Content and Settings.
8. Cancel your iPhone device registration at supportprofile.apple.com
Try contacting your provider and ask them to remove the device from your account.

Important Tips
- Never manually delete contacts, photos, calendars or reminders / reminders when logged in to your iCloud account, as doing so is tantamount to removing content from iCloud servers and devices connected to iCloud (like iPad or laptop).
- If your phone accidentally runs out of battery during the "restore to factory settings" step, use iTunes to clear the data. Connect your iPhone device to your computer, then restore the backup. Connect the phone to power, open the Settings app> General> Reset> Delete All Content and Settings again.
- You can wipe the device remotely. If you set the Find My iPhone, go to icloud.com/#find, then click All Devices and select the phone you want to delete. In the info window, click "Remove iPhone". You must enter your Apple ID password.

If the above steps you have done all, you are now safe to release your old iPhone, and start hunting your dream cell.