8 Easy Ways to Fix WhatsApp Backup Stuck at 0% or Not Completing

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If you are trying to fix whatsapp backup stuck at 0 on your phone, you are in the right place. You tap “Back up” in WhatsApp settings, but the progress bar stays at 0% forever. The backup never starts, or it gets stuck halfway. According to user reports across WhatsApp forums and Reddit, backup failures are among the most stressful issues because they risk losing your chat history. Based on our testing on multiple Android and iPhone devices, most backup problems are fixable in under ten minutes without losing any data. This guide is part of our Common Android Problems Hub.

📱 Before you start: Make sure you have a stable Wi-Fi connection (backups do not work over mobile data by default). Also, ensure your phone is charging or has at least 50% battery – WhatsApp requires power to perform backups.

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📌 In this guide:

Why WhatsApp Backup Is Stuck at 0% (Main Causes)

The need to fix whatsapp backup stuck at 0 usually comes from one of these factors:

  • Insufficient cloud storage space – Google Drive or iCloud is full.
  • Low local phone storage – WhatsApp cannot create a temporary backup file.
  • Corrupted WhatsApp cache or data – Old temporary files interfere.
  • Account authentication issues – Google or Apple account is not properly linked.
  • Outdated app or system services – Old versions have backup bugs.
  • Battery optimization killing background process – Phone sleeps during backup.
  • Large backup size – Videos and heavy media take a long time.

Quick Checklist (30 Seconds)

  • Make sure you are connected to a strong, stable Wi-Fi network.
  • Plug your phone into a charger (WhatsApp often requires charging to backup).
  • Restart your phone and try backing up again.
  • Check your Google Drive or iCloud storage (see Method 1).
  • Toggle Airplane mode on and off to refresh the network.

Method 1: Check Google Drive / iCloud Storage Space

The most common reason for a stuck backup is that your cloud storage is full. The first step to fix whatsapp backup stuck at 0 is to verify available space.

For Android (Google Drive):

  • Open the Google Drive app.
  • Tap the menu (three lines) > Storage.
  • Check how much free space you have. WhatsApp backups count toward your 15GB free quota.
  • If full, delete old files or purchase more space.
  • Also check Google One app if you have it.

For iPhone (iCloud):

  • Go to Settings > [Your Name] > iCloud > Manage Account Storage.
  • Look for WhatsApp in the list. If the backup size exceeds your free space, you need to free up space or buy more.
  • Delete old iCloud backups: Tap Backups, select old device backups, and delete them.

✅ Expected Result: After freeing up cloud storage, restart the backup. It should progress beyond 0% within a minute.

⚠️ Note: Google Drive free storage is shared across Gmail, Drive, and Google Photos. Deleting old emails or photos can free up space quickly.

Why this works: Without enough cloud storage, WhatsApp cannot upload your backup. This is the most common fix whatsapp backup stuck at 0 for users with full accounts.

If you are also experiencing WhatsApp verification issues, check our guide on how to fix WhatsApp verification code not received.

Method 2: Free Up Local Phone Storage

WhatsApp needs local storage to create a temporary backup file before uploading. If your phone is full, the backup will fail.

Step-by-step:

  • Go to Settings > Storage on your phone.
  • Check how much free space you have. You need at least 2-3GB free for a large backup.
  • Tap Free up space or Clean now.
  • Delete old photos, videos, unused apps, and large files.
  • Clear app caches (Settings > Apps > select app > Storage > Clear cache).
  • Move media to cloud storage or an SD card.
  • Restart your phone and try the backup again.

✅ Expected Result: After freeing up space, the backup should start and complete normally.

Why this works: WhatsApp creates a temporary backup file on your phone before uploading. Without enough free space, it cannot even start the process. This is a critical step to fix whatsapp backup stuck at 0.

Method 3: Clear WhatsApp Cache (Android)

Corrupted cache can interfere with the backup process. Clearing cache does not delete your chats or media.

Step-by-step:

  • Go to Settings > Apps > WhatsApp.
  • Tap Storage & cache.
  • Tap Clear cache (do NOT tap Clear data).
  • Restart WhatsApp and try the backup again.

For iPhone (iOS): iOS does not have a clear cache option. Instead, offload the app (Settings > General > iPhone Storage > WhatsApp > Offload App) then reinstall. This keeps your data but clears temporary files.

✅ Expected Result: After clearing cache, the backup should progress past 0%.

Why this works: Old cached files can become corrupted and block the backup process. Clearing cache is a safe and effective fix whatsapp backup stuck at 0.

For more WhatsApp troubleshooting, check our guide on fixing WhatsApp calls not ringing.

Method 4: Remove and Re-add Google Drive / iCloud Account

Sometimes the account linked to WhatsApp loses authentication. Removing and re-adding it can resolve the issue.

For Android (Google Drive):

  • Open WhatsApp > Settings > Chats > Chat backup.
  • Tap Google Drive settings.
  • Tap Account and select Add account (or remove the current one).
  • Alternatively, go to Settings > Accounts > Google, remove your account, then add it back.
  • Re-open WhatsApp and try the backup.

For iPhone (iCloud):

  • Go to Settings > [Your Name] > iCloud.
  • Toggle WhatsApp off, wait 10 seconds, then toggle it back on.
  • If that doesn’t work, sign out of iCloud completely and sign back in.
  • Open WhatsApp and retry the backup.

✅ Expected Result: After re-adding the account, the backup should start working.

⚠️ Note: Signing out of iCloud may remove Apple Pay cards and some saved data. Re-add them afterward.

Why this works: Authentication tokens can expire or become corrupted. Refreshing the account connection is a powerful fix whatsapp backup stuck at 0.

Method 5: Update WhatsApp and Google Play Services / iOS

Outdated software is a common cause of backup failures. Keeping everything updated ensures compatibility.

For Android:

  • Update WhatsApp: Open Google Play Store > search WhatsApp > tap Update.
  • Update Google Play Services: Search for “Google Play Services” in Play Store and update if available.
  • Update your phone’s system: Settings > System > Software update.
  • Restart your phone and try the backup again.

For iPhone:

  • Update WhatsApp: Open App Store > search WhatsApp > tap Update.
  • Update iOS: Settings > General > Software Update.
  • Restart your iPhone and retry.

✅ Expected Result: After updating, the backup should complete normally.

Why this works: Backup bugs are often fixed in newer versions. This is a zero-effort fix whatsapp backup stuck at 0. For official release notes, visit the Official WhatsApp FAQ Page.

Method 6: Disable Battery Optimization for WhatsApp (Android)

Aggressive battery saving can kill WhatsApp’s background process during backup, causing it to freeze at 0%.

Step-by-step:

  • Go to Settings > Apps > WhatsApp.
  • Tap Battery (or “Battery usage”).
  • Select Unrestricted (or “Don’t optimize”).
  • Also go to Settings > Battery > Battery Saver and turn it OFF temporarily.
  • For Xiaomi (MIUI): Settings > Apps > Manage apps > WhatsApp > Battery saver > No restrictions.
  • Try the backup again.

✅ Expected Result: After disabling battery optimization, the backup runs uninterrupted and completes.

Why this works: Battery optimization can put WhatsApp to sleep during long backups. Disabling it is an essential fix whatsapp backup stuck at 0 for Android users.

For WhatsApp images not downloading, check our guide on fixing WhatsApp images not downloading.

Method 7: Delete Old Backups and Retry

A corrupted previous backup can block new backups. Deleting old backups and starting fresh often works.

For Android (Google Drive):

  • Open Google Drive app.
  • Tap the menu (three lines) > Backups.
  • Find WhatsApp backup and tap the three dots > Delete backup.
  • Confirm deletion.
  • Open WhatsApp > Settings > Chats > Chat backup > tap Back up.

For iPhone (iCloud):

  • Go to Settings > [Your Name] > iCloud > Manage Account Storage > Backups.
  • Tap on your device’s backup.
  • Find WhatsApp in the list, toggle it OFF, then ON? Actually, you can delete the backup: Scroll down and tap Delete Backup.
  • Confirm deletion.
  • Open WhatsApp and perform a fresh backup.

✅ Expected Result: After deleting old backups, a new backup should complete successfully.

⚠️ Warning: Deleting an old backup removes that copy of your chat history. Only do this if you are sure you have another backup or you are creating a fresh one.

Why this works: A corrupted backup file can prevent new backups from being created. Deleting it forces WhatsApp to start from scratch – a reliable fix whatsapp backup stuck at 0.

Method 8: Use a Different Backup Method or Contact Support

If none of the above work, you may need to try alternative approaches or seek help.

Alternative methods:

  • Export chat history manually: Open a chat > three dots > More > Export chat. This saves as a .txt file (no media).
  • Use a third-party backup app (not recommended for privacy reasons).
  • Back up to a different Google account (on Android): Add a new account in WhatsApp backup settings and switch to it.

Contact support:

  • Email WhatsApp support: support@whatsapp.com
  • Include your phone number (with country code), device model, OS version, and a description of the issue.
  • If you use Google Drive, also check Google Drive Help Center.

✅ Expected Result: WhatsApp support or an alternative method helps you recover or back up your data.

Why this works: Sometimes the problem is server-side or account-specific. Official support is the final step to fix whatsapp backup stuck at 0.

If you are also having issues with WhatsApp Web, check our upcoming guide on fixing WhatsApp Web QR code not loading.

Frequently Asked Questions (7 Answers)

Q1: Why is my WhatsApp backup stuck at 0% on Google Drive?
A: Most common causes: full Google Drive storage, low phone storage, or corrupted cache. Follow Methods 1-3 first. The fix whatsapp backup stuck at 0 often starts with freeing up space.

Q2: How long should a WhatsApp backup take?
A: For small backups (text only), 1-2 minutes. For large backups with videos, 10-30 minutes. If it is stuck at 0% for more than 5 minutes, something is wrong.

Q3: Can I backup WhatsApp without Wi-Fi?
A: Yes, but you must enable it in Settings > Storage and data > Backup over mobile data. However, Wi-Fi is highly recommended for stability. Mobile data backups are slower and may fail.

Q4: Will deleting old Google Drive backups free up space for WhatsApp?
A: Yes. Google Drive free storage is shared across all apps. Deleting old device backups or large files can free up space and allow WhatsApp backup to proceed.

Q5: Why does WhatsApp backup keep failing on iPhone?
A: Common causes: low iCloud storage, poor Wi-Fi, or outdated iOS. Try Methods 1, 2, and 5 for iPhone. Also, ensure iCloud Drive is enabled (Settings > [Your Name] > iCloud > iCloud Drive > ON).

Q6: Can a VPN cause backup to stick at 0%?
A: Yes. VPNs can slow down or block uploads. Disable your VPN and try again. This is a common fix whatsapp backup stuck at 0 for VPN users.

Q7: How do I know if my WhatsApp backup is complete?
A: Go to WhatsApp > Settings > Chats > Chat backup. The last backup time and size will be displayed. You can also check Google Drive (menu > Backups) or iCloud (Manage Storage > Backups).

Related WhatsApp Guides

This guide is part of our Common Android Problems Hub – your one-stop resource for all WhatsApp and social media troubleshooting.

HowToFixPro Team – a technology-focused editorial team publishing accurate, tested troubleshooting guides for Windows, Android, AI tools, and social media platforms.

Last updated: June 2026

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