How to Fix Gmail Not Syncing on Android
Several things can cause Gmail to stop syncing emails.
Here are the top solutions for getting your email to work again on Android:
Perform a manual sync.
launch the Gmail app and swipe from the top of the screen to the bottom.

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You should see a refresh icon, at least briefly, as the app syncs with Gmail’s servers.
Manually syncing Gmail is handy if you only check it periodically on a single rig.
See if Gmail is down.
Google provides a way to see if there are any known issues with their email service.
If there are, there’s nothing you’re able to do but wait.
Verify that you’re online.
Disable Airplane Modeif it’s turned on.
Airplane Mode turns off your phone’s data and will no doubt cause Gmail to not sync.
flush the Gmail app cache.
This is often a fix for a corrupted cache, which could be contributing to the syncing problems.
Deleting this data will not erase your Gmail messages or your Google account.
power cycle your equipment.
Sometimes, a quick reboot is all that’s necessary to get a smartphone or tablet to work again.
If you prefer not to sync manually, it’s possible for you to automate this in the tweaks.
bring up the app and tap thethree-lined menu>prefs.
Tap your account and then tick the box next toSync Gmailtoward the bottom of the screen.
This is really only necessary if you changed your password recently.
Take this time tochange your Gmail passwordto the correct one.
Downloading the latest version of Gmail may fix problems with syncing if the issue stems from a software bug.
Verify that mobile data is turned on or that the machine is connected to Wi-Fi.
verify IMAP is enabled.
Gmail uses IMAP to send emails from its server to your machine.
It should be enabled by default, but if that changes for some reason, re-enable it.
Check your push controls.
verify if the app needs an update.
A pending update might include a bug fix for Gmail not syncing.
Restarting can solve this and many other problems.
Reinstall the Gmail App.Delete the Gmail appfrom your equipment and thenreinstall it from the App Store.
Deleting your account only removes its tie to your Apple unit.
This will not erase your emails or delete your Gmail account from Google’s servers.
Why Is Gmail Not Syncing?
It’s not always easy to identify the exact cause of syncing issues.
Some things troubleshooting steps will address include the following: