Realme C65 5G (RMX3997) RMX3997_11.A.45_0450_202411251954 OTA Firmware – Download & Install Guide
Upgrade your Realme C65 5G (Model: RMX3997) with the official RMX3997_11.A.45_0450_202411251954 OTA firmware (5.3 GB). This update delivers improved performance, new features, enhanced security, and bug fixes for a smoother, more reliable experience.Before You Begin
- Back Up Data: Save your photos, contacts, messages, and apps using Google Drive, Realme Cloud, or a computer. OTA updates are generally safe, but backups protect against unexpected data loss.
- Check Battery: Ensure your device has at least 60% charge to prevent interruptions during the update.
- Free Up Space: You need at least 5.3 GB of available storage for the OTA package.
- Confirm Model: Go to Settings > About Phone and verify your device is RMX3997. Never install firmware for other models—this can damage your device.
- Connect to Wi-Fi: Use a stable Wi-Fi network for fast, reliable downloading.
Download the Official Firmware
Download the RMX3997_11.A.45_0450_202411251954 OTA file from a trusted source. Copy the file to the root directory of your phone’s internal storage (do not place it inside any folder).OTA Installation Methods
| Method | Steps | Best For |
|---|---|---|
| Automatic OTA | Settings > About Phone > Software Update > Download & Install | Easiest, most users |
| Local OTA (File Manager) | Copy OTA to root storage > Open File Manager > Tap file > Install | Manual, if automatic fails |
| Recovery Mode | Copy OTA to root > Power off > Boot to recovery (Power + Vol Down) > Select file > Install | Troubleshooting, major updates |
Method 1: Automatic OTA Update (Recommended)
- Go to Settings > About Phone > Software Update.
- Tap Check for updates. If the OTA is available, tap Download and Install.
- Follow on-screen instructions. Your device will reboot automatically when the update is complete.
Method 2: Local OTA via File Manager
- Transfer the OTA file to your phone’s root directory.
- Open File Manager, locate the OTA file (usually in the root), and tap it.
- Tap Update and follow the prompts. The device will reboot after installation.
Method 3: Local OTA via Recovery Mode
- Place the OTA file in the root directory.
- Power off your device.
- Hold Power + Volume Down until the Realme logo appears, then release to enter Recovery Mode.
- Select your language (if prompted), then choose Install from storage.
- Navigate to the OTA file and select it.
- Confirm the installation and wait for completion, then reboot your device.
After the Update
- Check Settings > About Phone to confirm the new firmware version.
- Restore any missing apps and data from your backup.
- Enjoy new features, improved performance, and enhanced security.
Troubleshooting
- Update Fails: Retry with a fresh download. Ensure sufficient storage and battery.
- Phone Won’t Boot: Try recovery mode again or use the official Realme Flash Tool with the correct firmware package.
- Wrong Model Installed: Do not proceed—contact your nearest service center immediately.
- Downgrade Issues: If you’re downgrading from a higher Android version, follow the official downgrade OTA process carefully to avoid bricking your device.
FAQ
- Will I lose my data?
- Data loss is rare, but always back up before proceeding.
- What if the update doesn’t appear automatically?
- Download the OTA file manually and use the local or recovery method as described above.
- Can I use this firmware for other Realme models?
- No. Only use firmware for your exact model (RMX3997) to avoid serious issues.
- How do I know if my device is updated?
- Check Settings > About Phone for the current software version after rebooting.