Hello,
Greetings for the day!
The 0xE0000649 error code means OneNote is having trouble communicating with the web server where your notebook is stored. Most likely, there's been a server timeout, which occurs when the server is busy and can't respond to your requests.
- Please check the OneDrive status at this link provided by Microsoft - https://portal.office.com/servicestatus. This will give a detailed connection info about your PC or mobile
- If everything is green in above link, kindly follow below steps.
- Install all Office updates from this link -https://support.microsoft.com/office/2ab296f3-7f03-43a2-8e50-46de917611c5
- Try to logoff from OneDrive app, and remove the app. Make sure you clear the temp files and reboot the machine or mobile. https://answers.microsoft.com/en-us/msoffice/forum/all/error-0xe000078b-on-android-phone-app/6cf10e97-91a9-4f81-9380-ff15cd29dd71
- Please make sure that you have VPN and Proxy disabled, if you are using it.
- Check if your Antivirus program is blocking any of the programs that are getting install on your mobile. It’s always suggest to disable your antivirus before you install any program.
If you are having issues still, please find the support link to troubleshoot any issue with OneNote android app.
https://support.microsoft.com/office/734999fb-5060-4a43-94e0-9e61d6622069 Allow OneDrive to work in a background • Open Settings. • Tap Apps & notifications. • Choose All apps. • Open OneDrive. • Open Permissions and allow all required permissions to OneDrive. • Get back to app settings and open Battery. • Make sure that the Allow background activity option is enabled.
If sync doesn't work, OneDrive is not launching, or OneDrive is crashing, please try to re-install OneDrive: • Open Settings. • Select Applications. • Tap Manage Applications. • Find and tap OneDrive. • Tap Force Stop and then tap Clear data and Clear cache. • Once completed, uninstall the app. • Reinstall the app from Google Play.
Hope this information helps. Please feel free to get back if you have any questions.
Thank you! Ravikumar Help the next person who has this issue by indicating if this reply solved your problem. Click Yes or No below.