Jennie
How to do when notes disappeared after iOS 10.2 update

Do you upgrade your iPhone to the latest iOS 10.2? Some customer feedback that their notes disappeared after iOS 10.2 update. Some important notes were keeping for several years. Unfortunately they didn't save them to the iCloud.
It seems that all notes are gone unless you have made an iTunes backup or iCloud backup. Is there really no other solution? No, here are some solutions to help you to recover them.
Solution one: Check your Notes settings
Are you sure all notes are gone or maybe your iPhone is only showing you the iCloud notes, but not the ones that are stored only on your iPhone. Tap the arrow on the left to see the folder list and choose "ON MY IPHONE" ---> "All on My iPhone"
Solution Two: Use Data Recovery for iPhone
Each iOS version of the notes storage structure is not the same, every time you upgrade the iOS version, part of the data storage may be a problem, this problem also appeared in Mac note upgrade. Causes all iPhone notes to be lost or not displayed on your iPhone. Data Recovery for iPhone will help you to deal with this problem. Next I will explain the steps to recover notes with Data Recovery for iPhone after iOS 10 update.
Step 1. Connect your iPhone with your computer
Connect your device to your computer using the included USB cable. Click "Trust" on your iPhone when the "Trust This Computer" alert on your iPhone.
Step 2. Run Fireebok Data Recovery for iPhone on your computer
When you run this data recovery for iPhone software, you’ll see the main window as follows. You can see three options to choose. Just choose "Recover From iOS Device" mode if you don't have any backup. Then click "Start Scan" button to scan. The scanning may take some time depends on your iPhone content.

Step 3. Preview and restore lost data from iPhone
After scanning, you will find all found data will be showed below. You can choose a tab to preview the detailed of your data. To view only the deleted files, you can check the button "Only display deleted files" in red box below. Click "Notes & Others" button and choose the notes you want to recover and click "Recover" button to save them on your computer.
