Fix OneNote Notebooks and Images Missing on iPhone (Error 0xE4020108)
Question details
Users are experiencing synchronization issues where OneNote notebooks disappear from the iPhone app, and images are replaced by error code 0xE4020108, despite remaining visible and accessible on a Mac.

- Product
- Microsoft OneNote
- Device & OS
- iPhone (iOS) and Mac
- Scenario
- Syncing OneNote notebooks and accessing image attachments across Apple devices.
- Observed behavior
- Notebooks fail to appear on the iOS app, and images fail to load, displaying sync error 0xE4020108, even after reinstalling the mobile application.
Before troubleshooting, ensure you have a stable internet connection and verify that both your iPhone and Mac are logged into the exact same Microsoft account.
Reinstall OneNote and Resync Your Microsoft Account
Reinstalling the app clears local corrupted cache and forces a fresh synchronization with your OneDrive account, which often restores missing notebooks.
A corrupted local cache on your iOS device can prevent notebooks from displaying properly. A fresh installation forces the app to pull the most recent data directly from the server.
Tap and hold the OneNote app icon on your iPhone home screen, select 'Remove App', and confirm by tapping 'Delete App'.
Open the App Store, search for Microsoft OneNote, and download the application again.
Open OneNote and sign in using the identical Microsoft account credentials that you are currently using on your Mac.
Leave the app open on a strong Wi-Fi connection to allow all notebooks to fully download before tapping into specific pages containing images.

Preserve Desktop Notebooks and Report the Image Error
If error 0xE4020108 persists for images after a fresh sync, it is likely a server-side issue that requires escalation.
Try WPS Office for Reliable Cross-Platform Document Sync
Frustrated by OneNote sync errors between your Mac and iPhone? Switch to WPS Office for a lightweight, seamless, and free alternative. WPS Office provides reliable cloud synchronization for all your documents, ensuring your notes and images are always available across iOS, macOS, and Windows without sync failures.
- 1. Download WPS Office: Install WPS Office on your Mac and iPhone from their respective app stores.
- 2. Create a free account: Sign up for a free WPS account to activate your cross-device cloud storage.
- 3. Sync your files: Create new documents or import existing files to seamlessly sync your notes and images across all your devices.

Frequently Asked Questions
What does OneNote error code 0xE4020108 mean?
Error 0xE4020108 in OneNote typically indicates a synchronization failure where the client (like your iPhone) cannot download specific attachments or images from the OneDrive server, often due to network issues or server-side sync disruptions.
Why can I see my notebooks on my Mac but not on my iPhone?
This happens when the iPhone app fails to sync with the cloud. It can be caused by being logged into a different Microsoft account, a corrupted local app cache, or a paused sync on the Mac side preventing the latest data from reaching the cloud.
Will deleting the OneNote app on my iPhone delete my notes permanently?
No, deleting the app will only remove the local cache on your device. As long as your notes were previously synced to OneDrive or are still safely stored locally on your Mac's desktop version, they will be restored when you reinstall the app and log back in.
How can I force OneNote to sync on my iPhone?
Open the OneNote app on your iPhone, navigate to the Notebooks list, and pull down on the screen to force a manual sync. Keep the app open and ensure your iPhone is connected to a stable Wi-Fi network until the sync loading indicator finishes.




