How to Fix FM WhatsApp Crashes When Sending Large Files (700MB)

FM WhatsApp is a popular WhatsApp mod in 2025, offering advanced features like enhanced privacy, customization, and the ability to send large files up to 700MB far beyond the official WhatsApp’s 2GB limit for documents. However, many users encounter a frustrating issue: FM WhatsApp crashes when sending large files, such as high-quality videos, photo albums, or hefty documents. This problem can disrupt communication, especially for group admins or professionals sharing critical files. If you’re facing this issue, don’t worry this guide provides 7 actionable solutions to fix FM WhatsApp crashes and get your large file sharing back on track.

Why Does FM WhatsApp Crash When Sending Large Files?

Understanding the root causes of FM WhatsApp crashes is the first step to fixing the issue. Here are the most common reasons in 2025:
Outdated App Version: An older FM WhatsApp version may lack the latest bug fixes or optimizations for handling large files, leading to crashes.
Insufficient Storage: If your device is low on storage, FM WhatsApp struggles to process and send 700MB files, causing the app to freeze or crash.
Unsupported File Formats: FM WhatsApp supports common formats like MP4, AVI, and PDF, but advanced codecs (e.g., H.265 for 4K videos) may cause compatibility issues.
Weak Internet Connection: Sending a 700MB file requires a stable, high-speed connection. A weak or fluctuating network can interrupt the process and crash the app.
Device Performance: Older Android devices with limited RAM (e.g., 2GB or less) may struggle to handle the resource-intensive task of sending large files.
Corrupted Cache: Accumulated cache data can interfere with FM WhatsApp’s functionality, leading to crashes during file transfers.
App Bugs or Conflicts: As a third-party mod, FM WhatsApp may have bugs or conflicts with your device’s OS, especially after recent Android updates.

7 Proven Fixes for FM WhatsApp Crashes When Sending Large Files

Here are seven solutions to resolve FM WhatsApp crashes when sending 700MB files. Follow these steps in order for the best results.

1. Update FM WhatsApp to the Latest Version

An outdated version of FM WhatsApp may not be optimized for large file transfers. The latest version in 2025 includes bug fixes and performance improvements.

• Visit the official FM WhatsApp download site (e.g., fmwaapps.com).
• Download the latest APK (e.g., v10.0 or higher).
• Install the APK over the existing app without uninstalling to preserve your chats.
• Open FM WhatsApp and try sending the 700MB file again.

Tip: Always backup your chats (Settings > Chats > Backup) before updating to avoid data loss.

2. Check and Free Up Storage Space

Low storage can cause FM WhatsApp to crash when processing large files. Ensure your device has enough space to handle a 700MB file transfer.

• Go to Settings > Storage on your Android device.
• Check if you have at least 1GB of free space (700MB for the file + extra for processing).
• If storage is low, delete unnecessary apps, photos, or videos, or clear WhatsApp media (Settings > Storage and Data > Manage Storage).
• Retry sending the file after freeing up space.

Example: A user reported that clearing 2GB of old WhatsApp media resolved their crash issue when sending a 650MB video.

3. Verify Your Internet Connection

A weak or unstable internet connection can interrupt the file transfer, causing FM WhatsApp to crash. Sending a 700MB file requires a strong, stable network.

• Switch to a high-speed Wi-Fi connection if you’re using mobile data.
• Test your internet speed using an app like Speedtest (aim for at least 10 Mbps upload speed).
• If Wi-Fi is unstable, restart your router or switch to a different network.
• Disable background apps that may consume bandwidth (e.g., video streaming apps).

Note: Avoid sending large files on a metered connection to prevent data overage charges.

4. Compress the File Before Sending

If FM WhatsApp crashes due to the file size or format, compressing the file can help. Compression reduces the file size, making it easier for the app to process.

• Use a compression app like ZIP-Unzip-File Extractor (available on Google Play).
• Select your 700MB file (e.g., a video or PDF) and compress it into a ZIP folder.
• In FM WhatsApp, go to the chat, tap the attachment icon, select “Document,” and choose the compressed ZIP file.
• Send the file and ask the recipient to unzip it on their device.

Benefit: Compressing a 700MB video to 500MB can significantly reduce the load on FM WhatsApp, preventing crashes.

5. Convert the File to a Supported Format

FM WhatsApp may crash if the 700MB file uses an unsupported format or codec. For example, videos with H.265 encoding (common in 4K) may not be compatible.

• Check the file format of your 700MB file (e.g., MP4, AVI, MOV, PDF).
• If the format is unsupported, use a free converter like VLC Media Player or an online tool to convert it to MP4 (a widely supported format).
• For videos, ensure the resolution is 720p or lower to reduce processing demands.
• Retry sending the converted file via FM WhatsApp.

Example: A user converted a 700MB H.265 video to MP4 using VLC, reducing crashes and enabling a successful transfer.

6. Clear FM WhatsApp Cache

Corrupted cache data can interfere with FM WhatsApp’s ability to send large files, leading to crashes. Clearing the cache can resolve this issue.

• Go to Settings > Apps > Manage Apps > FM WhatsApp > Storage.
• Tap “Clear Cache” (this won’t delete your chats).
• Restart FM WhatsApp and attempt to send the 700MB file again.

Alternative: If clearing the cache doesn’t work, tap “Clear Data” (this will reset the app, so back up your chats first).

7. Use an Alternative Method for Large Files

If FM WhatsApp continues to crash, consider using a cloud service to share the 700MB file and send the link via FM WhatsApp instead.

• Upload the file to Google Drive (offers 15GB free storage).
  • Open Google Drive, tap the “+” icon, and upload your file.
  • Once uploaded, tap the three dots next to the file, select “Copy Link,” and share it in your FM WhatsApp chat.
• Alternatively, use Dropbox or WeTransfer for files larger than 700MB.
• This method bypasses FM WhatsApp’s file transfer process, reducing the risk of crashes.

Advantage: Sharing a link ensures the recipient gets the file in its original quality without overloading FM WhatsApp.

Additional Tips to Prevent Future Crashes

• Restart Your Device: A simple reboot can fix temporary glitches causing FM WhatsApp to crash.
• Check Device Compatibility: Ensure your Android device meets FM WhatsApp’s requirements (Android 4.0+, 2GB+ RAM).
• Avoid Overloading the App: Don’t send multiple large files simultaneously; process them one at a time.
• Monitor App Updates: Regularly check for FM WhatsApp updates to benefit from the latest stability improvements.

Conclusion

FM WhatsApp crashes when sending large files like 700MB can be frustrating, but the solutions above updating the app, freeing up storage, ensuring a stable connection, compressing files, converting formats, clearing cache, or using cloud links can resolve the issue effectively. By following these steps, you can continue to enjoy FM WhatsApp’s advanced features in 2025, such as enhanced media sharing and privacy controls, without interruptions. If the problem persists, consider reaching using Yo WhatsApp support community for further assistance.