Gmail not working on Android? First check that a website opens, then try the same account at Gmail in a browser. If the browser works but the app does not, start with the app fixes below. If both fail, check account storage, sign-in errors, and Google service status before changing your phone.
This guide covers Gmail crashing, refusing to open, not syncing, failing to send or receive, getting stuck in the Outbox, showing "Account not synced," and running slowly. Work from reversible checks to account changes; a Gmail-only problem is not, by itself, evidence that Android needs a factory reset or firmware repair.
In this article
- Part 1. Problem 1: Gmail App Not Responding or Keeps Crashing
- Part 2. Problem 2: Gmail Won't Sync Between All Ends
- Part 3. Problem 3: Gmail Won't Load in Your Web Browser
- Part 4. Problem 4: Gmail Can't Send or Receive Emails
- Part 5. Problem 5: Emails Stuck in the "Sending" Outbox
- Part 6. Problem 6: Experiencing the "Account Not Synced" Error
- Part 7. Problem 7: The Gmail App is Running Extremely Slow
Start here: Open a website, then sign in to the same account at gmail.com. For Outlook or Yahoo inside Gmail, compare with that provider's own web inbox. If mail is also missing there, investigate the account/provider rather than resetting the Android app.
Check the Google Workspace Status Dashboard for a reported Gmail incident. This is a live check, not a claim that Gmail is currently down. If an incident matches your symptoms, wait for Google's update instead of clearing data or repairing firmware.
| What you see | Start with | What the result tells you |
|---|---|---|
| App closes, freezes, or will not open | App troubleshooting | If only Gmail fails, work on the app before the operating system. |
| Browser has new mail but the app does not | Sync settings and storage | This points toward the device/app sync path, not missing server mail. |
| Mail is visible, but alerts are missing | Notification checks | Delivery and notification settings are separate. |
| Sending/receiving fails in the app and browser | Account and mail-delivery checks | Look for storage, sign-in, bounce messages, or service issues. |
| A message stays queued or Sending | Outbox checks | Compare a small attachment-free message before changing accounts. |
| Only the browser fails | Android browser checks | Browser cache/add-ons are not Gmail app settings. |
Part 1. Problem 1: Gmail App Not Responding or Keeps Crashing
Screenshots illustrate the settings to look for; some show older Android layouts. Use the current text paths if your phone looks different.
If Gmail keeps crashing, displays "Gmail has stopped," or freezes, test the steps below one at a time. For Gmail not responding or Gmail not loading on Android, also compare the same account in a browser using the starting checks. This separates an app problem from account or service trouble.
1-1. Clear the App Cache
Try Settings > Apps > Gmail > Force stop, then reopen Gmail. If it still fails, clear the cache using the steps below. Cache is temporary app data; clearing it is not the same as clearing Gmail storage and does not empty your server mailbox.
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Step 1 Navigate to App Settings
Open Settings > Apps (sometimes Apps & notifications). Menu names vary by Android version and phone maker.

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Step 2 Locate Gmail
Tap See all apps if needed, then select Gmail.

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Step 3 Clear the Cache Data
Open Storage & cache or Storage, then tap Clear cache. Reopen Gmail and try opening one message. Do not select Clear storage or Clear data for this step.

If clearing cache did not help: Complete the update, sync, storage, and network checks first. Only then consider Settings > Apps > Gmail > Storage & cache > Clear storage (or Clear data), followed by a restart and reopening Gmail.
Google warns that clearing Gmail information can erase message drafts, signatures, ringtones, and other settings. Copy any unsent text and attachments somewhere safe first. Mail already stored in the Google Account is different from a draft that exists only on the phone; do not assume every unsent item has synced.
1-2. Restart the Android Device
Open your phone's power menu and choose Restart; the way to open the menu varies by model. After restarting, open Gmail and test it. Then open Google Play Store > profile icon > Manage apps & device and install available Gmail updates. Check the phone's software update screen as well.
If this started after an update: Record your phone model, Android version, Gmail version, and the exact error. Install a newer official fix if available and use Gmail in the browser temporarily. Do not assume every post-update crash is a confirmed widespread bug or install an old APK from an unknown site.
1-3. Perform a Factory Reset Only as a Last Resort
Do not make a factory reset your next step just because clearing cache failed. Finish the sync checks, account checks, and update/storage checks first. If only Gmail is affected, report the problem to Google rather than wiping the phone. A reset is an optional last resort for broader device trouble after other troubleshooting.
Before resetting: A factory reset erases apps and local data. Back up important files and verify the backup, save drafts, and confirm your Google Account password and screen-lock credentials. Google advises waiting 24 hours after a Google password reset and charging the phone to at least 70% before a factory reset.
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Step 1 Find Reset Options
After preparing the backup, open Settings and search for Factory reset. On some phones, the path is System > Reset options or General management > Reset. The screenshot illustrates an older Android menu, not a universal current path.

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Step 2 Erase Everything
Select Factory data reset or Erase all data, read the device-specific warning, and confirm only if you accept the erasure. After setup, reconnect the account and test Gmail before reinstalling all other apps.
Firmware repair is not a normal next step for Gmail-only errors. For a supported phone with wider Android system problems, read the repair eligibility and data-loss limits before considering Dr.Fone - System Repair (Android). It does not change Google storage limits or resolve a Google service outage.
Part 2. Problem 2: Gmail Won't Sync Between All Ends
If Gmail works on another device or in the browser but your Android inbox stays old, begin with manual refresh and the two sync settings below. If Outlook or Yahoo mail is affected inside Gmail, test that provider's web inbox first; a provider-side issue needs a different fix.
2-1. Make Space in the Phone
Check Settings > Storage. If the phone is nearly full, move important photos or videos to a computer and remove downloads or unused apps you no longer need. Low device storage can stop Gmail syncing. Deleting phone files does not necessarily free Google Account storage.
| Storage type | Why it matters | What to do |
|---|---|---|
| Android device storage | Gmail may not sync when local space is low. | Open Settings > Storage; save important files elsewhere before deleting unused local files. |
| Google Account storage | At the account limit, Gmail cannot send or receive messages; incoming mail may bounce. | Open Google storage; review large mail/files, then delete only items you no longer need and empty the relevant Trash/Spam, or consider more storage. Emptying trash is permanent. |
Google Account storage is shared across Gmail, Drive, and Photos. Google notes that storage can take up to 48-72 hours to update after bulk deletion. Do not keep deleting important files just because the meter has not changed immediately.
2-2. Check Gmail Sync Settings
First open Gmail and swipe down from the top of the inbox to refresh. Google says syncing can take up to 15 minutes, or longer if the device has not been used for some time. If messages still do not appear, check the account below.
- Open Gmail, tap Menu > Settings, then select the affected account.

- Under Data usage, check Sync Gmail. Return to the inbox and swipe down again.

Also check Android account sync: Open the phone's Settings, find the account area (such as Passwords & accounts or Manage accounts), select the same Google Account, and open Account sync. Enable Gmail sync if that control is shown and choose Sync now. Google's example path is About phone > Google Account > Account sync; manufacturers use different paths.
Messages arrive, but alerts do not? That is a notification issue, not necessarily failed delivery. In Gmail, open Menu > Settings > your account > Email notifications and choose the messages you want alerts for. For individual labels, use Manage labels > label > Sync messages, then set its notifications.
Next open Settings > Apps > Gmail > Notifications on the phone and allow Gmail notifications. If mail updates only while the app is open, review Gmail's background data and battery restrictions in app settings; temporarily test without Battery Saver or Data Saver if either is limiting it, then restore unrelated settings. Retest with one new message. See Google's Gmail notification settings.
2-3. Restart the Device
After changing sync settings, restart the phone once, open Gmail, and swipe down to refresh. Test with one new message. If the browser receives it but the app still does not, continue with Gmail data troubleshooting only after saving unsent work.
Part 3. Problem 3: Gmail Won't Load in Your Web Browser
This section is for Gmail in an Android browser, not the Gmail app. Use it if gmail.com fails to load while the rest of the web works. A browser setting or extension does not directly change the Gmail app.
3-1. Ensure You Use a Gmail-Supported Browser
Update your Android browser through its official store. Google says most browsers should work with Gmail and suggests trying Chrome if you have trouble. In the browser, open gmail.com and sign in. Internet Explorer is not an Android troubleshooting option.
3-2. Clear the Cache of Your Web Browser
In Chrome for Android, tap More > Delete browsing data > More options. Choose the time range and only the categories you intend to clear, then tap Delete data. Cache removes temporary files; cookies and site data are separate from browsing history. Clearing cookies can sign you out of sites, although Google says you stay signed in to your Google Account if you were signed in to Chrome. Avoid selecting passwords or history unless you intend to delete them. Reopen gmail.com and test. See Google's Android Chrome data-deletion instructions.
3-3. Check Browser Extensions or Add-ons
If your Android browser supports add-ons, temporarily disable a relevant content blocker or test a private tab. Standard Chrome for Android does not offer the desktop Chrome extension workflow, so skip desktop extension instructions there. If a private tab works, compare site data and browser settings; this test alone does not prove an extension caused the problem.
Part 4. Problem 4: Gmail Can't Send or Receive Emails
If Gmail cannot send or receive, first test the same account in a browser and read any delivery error or bounce message. If both app and browser fail, check Google Account storage and the service/account checks. If only Android fails, check sync, update Gmail, and test the network before removing an account.
4-1. Check for the Latest Version of Gmail
Open Google Play Store > profile icon > Manage apps & device and check for a Gmail update, or search for Gmail and tap Update if shown. After the update, reopen Gmail and test a small message to an address you can check.

4-2. Verify Your Internet Connection
Load a website to test internet access. If it fails, reconnect to Wi-Fi or try mobile data if available and allowed by your plan. Neither connection type is always better. Once a website loads, retry Gmail. A lack of internet can block email delivery without necessarily making the app itself unresponsive.
4-3. Remove Your Account and Add It Again
Use account removal only after the preceding checks and only when you can sign back in. First verify your password and two-step verification/recovery method on another device or in a browser, and save unsent drafts and local attachments. Google explains that removing an account removes associated email, contacts, and settings from this device; it is not the same as deleting the Google Account. For a managed work/school account, contact your administrator first.
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Step 1 Access Account Management
Open Settings > Passwords & accounts or Manage accounts, then select the affected Google Account. Confirm the address before changing anything.

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Step 2 Remove the Account
Tap Remove account and confirm only after saving local work. Then return to the account settings, tap Add account > Google, sign in with the same account, and complete any verification. Open Gmail, check Sync Gmail, and refresh. Give synced items time to return; locally unsaved work may not return.

Part 5. Problem 5: Emails Stuck in the "Sending" Outbox
If a message stays in the Outbox as "Queued" or "Sending," check Sent in the app and browser before retrying, so you do not send duplicates. Save the message text and attachments before editing or clearing app data. Then test the network and a small attachment-free message.
5-1. Try an Alternative Gmail Address
If you have another account, you can send a harmless test message from it to an address you control. Do not send confidential work from a personal address or resend the original message automatically. If the test works, compare the affected account's quota and sign-in status; the result suggests an account-specific path but does not prove the cause.
5-2. Check Your Network Connection Thoroughly
Test a website, then try another permitted connection if the current one is failing. Wi-Fi is not inherently more reliable than mobile data. A failed upload can leave mail queued without proving that it caused Gmail to crash.
- Reconnect Wi-Fi, or test mobile data if your plan allows it.
- If other devices also cannot connect, restart a router you control; do not reset a work or public network.
- If you toggle Airplane mode, turn it off again and wait for a working connection before retrying.
Return to the Outbox and retry once after checking Sent. If the original remains pending, save a copy before changing it. Use a new short test message to diagnose delivery rather than repeatedly tapping Send on the original.
5-3. Check Your Email Attachments Size
For personal Gmail accounts, the total attachment limit is 25 MB; Google Workspace limits can be set by the administrator. Google says Gmail uses a Drive link when attachments exceed the limit. To isolate an upload problem, try a short test without an attachment, or remove and re-add an attachment after saving it. For a large file, use Compose > Attach > Drive and confirm the recipient can access the file. Also check Google storage if an upload fails.
Part 6. Problem 6: Experiencing the "Account Not Synced" Error
The "Account not synced" message means Gmail has not completed synchronization. It does not identify a single cause. Use the local-space, account-space, and sync checks below before deleting data or removing an account.
6-1. Make Space in the Phone
Check Settings > Storage and move important files before deleting unused local files. Also compare your cloud quota in the phone storage vs. Google Account storage table; freeing one does not necessarily free the other.
6-2. Review Gmail Sync Settings Again
Use the account shown in the error. The steps below check Gmail; also complete the Android account sync check if the app box is already enabled.
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Step 1 Open the Main Menu
Open Gmail and tap the Menu icon in the top-left corner.
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Step 2 Select Your Account
Tap Settings and select the email address named in the error.

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Step 3 Enable the Sync Checkbox
Check Sync Gmail, return to the inbox, and swipe down. Syncing can take up to 15 minutes. If it still fails, compare the browser inbox and check Android account sync rather than repeatedly toggling the same box.

6-3. Reboot the Device
Restart the phone and test one manual refresh. If the error remains, record the exact message and Gmail/Android versions for support. Repeated restarts alone will not resolve a full Google Account quota or a sign-in problem.
Part 7. Problem 7: The Gmail App is Running Extremely Slow
If Gmail is slow but still opens, try these reversible steps. Test scrolling and opening one message after each step; compare loading over another working network if the delay appears only when fetching messages.
7-1. Restart the Phone to Clear RAM
Restart the phone using its power menu, then reopen Gmail. This can clear temporary app/device problems, but it is not a guaranteed or permanent memory fix.
7-2. Clear Storage of Device
Open Settings > Storage, save important local files elsewhere, and remove unused downloads or apps. Avoid deleting unsent drafts or irreplaceable attachments. There is no single free-space amount that guarantees Gmail performance across all Android phones.
7-3. Update the Gmail App
Open Google Play Store, search for Gmail, and tap Update if available. Check for Android updates too. If Gmail alone remains slow after the storage and sync checks, report the problem through Gmail support with your device, app version, and symptom; do not jump to firmware repair.
When is Dr.Fone relevant? Dr.Fone - System Repair (Android) is a firmware-repair option for supported Samsung, Xiaomi, Redmi, and POCO devices with wider system problems. It is not a Gmail account service and cannot increase cloud storage, recover a Google password, or fix an outage. For Gmail alone, use the app/account steps first rather than buying repair software.
Platform and data limits: The Android repair feature runs on a Windows PC only, not macOS or directly on Android/iOS. Samsung repair erases device data. The Xiaomi/Redmi/POCO workflow is described as designed to repair without root or data loss; that is not a guarantee for every device or failure. Back up accessible data and confirm the exact model and firmware offered in the tool before proceeding.
For an eligible system-level issue, use the current Samsung system-repair guide or Xiaomi/Redmi/POCO repair guide. These are optional, separate firmware workflows, not an additional Gmail fix. Installing the trial is not a promise that paid repair features are free.
Conclusion
Start with a working connection, the browser comparison, Gmail updates, and cache/sync checks. Distinguish phone storage from Google Account storage, and protect unsent drafts before clearing Gmail storage or removing an account. If only Gmail fails, contact Google support; if several apps or Android itself fail, investigate the wider device issue. A factory reset or supported firmware repair is a separate last-resort decision, not a guaranteed Gmail fix.
FAQ
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1. Why does my Gmail app keep crashing on my Samsung device?
A crash alone does not identify the cause. Update Gmail and Android, restart, then use force stop and clear cache. If only Gmail fails, do not assume the Samsung firmware needs repair. If several apps also crash, investigate the wider device issue separately. -
2. How do I fix Gmail not syncing in the background?
Check Sync Gmail and Android account sync, then verify that Gmail can use background data and is not restricted by a battery/data-saving setting. If mail is present but alerts are missing, use the notification checks instead. -
3. Will clearing Gmail data delete my actual emails?
Mail already stored in the Google Account is different from local Gmail app information. Clearing cache removes temporary files; clearing storage/data can erase drafts, signatures, ringtones, and settings. Save unsent work first, then use the late-stage clear-storage procedure only after safer checks. -
4. What should I do if my emails are stuck in the Outbox?
Check Sent before retrying, test a working connection, and send a small test without attachments. Personal Gmail has a 25 MB total attachment limit; Workspace limits can differ. Use the Outbox checks before clearing data or switching senders. -
5. What if Gmail search is not working on Android?
Confirm that you selected the correct account and are not searching only one label. Compare the same search at gmail.com to separate the app from the mailbox. If the browser finds the message but the app does not, follow the update and sync checks above; if both fail, review the search terms and where the message is stored rather than resetting the phone.
