If your Cubot Note Plus is experiencing persistent bootloop crashes, camera app not working or crashes, rapid battery drain despite 2800mAh capacity, or unresponsive fingerprint scanner problems, flashing the official stock firmware provides the most comprehensive solution. This expert guide delivers tested firmware downloads, detailed SP Flash Tool instructions, and specialized troubleshooting methods to restore your FullHD MT6737T-powered device to optimal performance.
đ¨ Critical Pre-Flash Warning
Flashing firmware will permanently erase all data on your Cubot Note Plus, including photos, apps, contacts, and personal files. Create a complete backup before proceeding. Incorrect use of SP Flash Tool can damage IMEI or cause permanent brickâfollow instructions precisely.
Device Specifications Verification
Confirm these specifications match your device before flashing:
| Specification | Details |
|---|---|
| Device Name | Cubot Note Plus |
| Release Date | August 2017 |
| Chipset | MediaTek MT6737T (28nm, Quad-Core 1.5GHz) |
| GPU | ARM Mali-T720 MP2 @ 600MHz |
| Display | 5.2âł IPS LCD, 1920Ă1080 FullHD, 424 ppi |
| RAM/Storage | 3GB RAM / 32GB internal storage |
| Battery | 2800mAh removable Li-Ion |
| Android Version | Android 7.0 Nougat (stock) |
| Key Features | 16MP Sony front + 16MP rear cameras, rear fingerprint, USB Type-C |
Official Firmware Downloads
| Filename | Date | Region | Android | Size | Download Link/s |
|---|---|---|---|---|---|
| Cubot_Note_Plus_7151C_MT6737T_V07_20171015.zip | Oct 2017 | Global | 7.0 | 1.67GB | Download (MediaFire) |
| Cubot_Note_Plus_7151C_MT6737T_V09_20171210.zip | Dec 2017 | Global | 7.0 | 853MB | Download (MediaFire) |
| COBOT_NOTE Plus_7151C_V12_20180522.rar | May 2018 | Global | 7.0 | 802MB | Download (MEGA) |
â Recommendation: Always use V12 (May 2018) firmware as it includes critical security patches, bootloop protection, improved Sony IMX135 camera drivers, enhanced battery management algorithms, and refined USB Type-C charging optimization.
Required Tools & Drivers
- SP Flash Tool (latest version)
- MediaTek VCOM USB Drivers
- Cubot Note Plus firmware package (from table above)
Driver Installation Notes:
- On Windows 10/11, you may need to disable driver signature enforcement
- Install drivers before connecting your phone
- Use high-quality USB Type-C cable for reliable connection
Quick Cubot Note Plus Firmware Flashing Instructions
-
Download and install SP Flash Tool along with MediaTek VCOM drivers on your computer.
-
Extract the firmware file and locate the scatter file (usually
MT6737T_Android_scatter.txt). -
Open SP Flash Tool and click âScatter-Loadingâ button to load the scatter file from the firmware folder.
-
Set the mode to âDownload Onlyâ (never use âFormat Allâ unless absolutely necessary to avoid IMEI loss).
-
Power off your Cubot Note Plus completely and ensure it has at least 50% battery charge.
-
Click the âDownloadâ button in SP Flash Tool, then connect your powered-off device to PC via USB Type-C cable to begin the flashing process.
For comprehensive instructions including error troubleshooting, driver issues, and advanced recovery methods, visit our complete guide: How to Flash Firmware on MediaTek (MTK) Smartphones.
Troubleshooting & Optimization Guide
1. Persistent Bootloop and System Crashes
- Symptoms: Device stuck on logo screen, continuous restart cycles, wonât boot to Android, hanging during startup.
- Remove microSD card and SIM cards before attempting flash â corrupted SD cards cause bootloops
- For removable battery: Remove 2800mAh battery, wait 30 seconds, reinsert
- Hard reset method: Power + Volume Up for 10-15 seconds
- Boot into recovery mode and wipe cache partition before flashing
- Flash V12 firmware using âDownload Onlyâ mode â degraded batteries often cause persistent bootloops
2. Camera App Crashes and Sony Sensor Issues
- Symptoms: Camera app wonât open, crashes after updates, âcamera not workingâ errors, poor 16MP photo quality.
- Uninstall camera app updates: Settings > Apps > Camera > Uninstall Updates
- Clear camera storage and cache: Settings > Apps > Camera > Storage > Clear All
- Restart device completely after clearing camera data
- Test both front 16MP Sony and rear 16MP cameras separately in good lighting
- Flash V12 firmware for updated Sony IMX135 camera drivers and image processing algorithms
3. Rapid Battery Drain Despite 2800mAh Capacity
- Symptoms: Battery depletes quickly, charging issues with USB Type-C, false percentage readings, overheating.
- Clean USB Type-C charging port with compressed air â lint causes charging failures
- Use original charger and high-quality USB Type-C cable
- Check for dirty or damaged charging connector with flashlight
- Calibrate 2800mAh battery: Drain to 0%, charge to 100% uninterrupted
- Flash V12 firmware for optimized power management and thermal algorithms
4. Unresponsive Fingerprint Scanner Problems
- Symptoms: Fingerprint not recognized, sensor inactive, âhardware not availableâ errors.
- Clean rear fingerprint sensor with microfiber cloth, ensure completely dry fingers
- Delete all existing fingerprints: Settings > Security > Fingerprint > Remove All
- Restart device completely before re-registering fingerprints
- Re-register fingerprints with multiple angles and consistent pressure
- Flash V12 firmware for updated fingerprint sensor drivers and improved calibration
5. WiFi Connectivity and Network Problems
- Symptoms: WiFi connected but no internet, frequent disconnections, mobile data failures.
- Enable automatic date/time: Settings > System > Date & Time > Network provided time
- Toggle WiFi off/on and forget problematic networks, then reconnect
- Reset network settings: Settings > System > Advanced > Reset > Reset WiFi, mobile & Bluetooth
- Check date/time settings â incorrect time causes internet access denial
- Flash V12 firmware for improved network stack stability and antenna management
6. Slow Performance and Storage Issues
- Symptoms: Laggy UI, apps freezing, insufficient storage warnings, slow multitasking.
- Keep at least 8GB of 32GB internal storage free for optimal performance
- Uninstall unnecessary pre-installed apps to free up space
- Move media files to microSD card (supports up to 128GB)
- Restart device every 2-3 days to clear memory leaks
- Flash V12 firmware and perform factory reset for fresh performance optimization
FullHD Display and Camera Optimization
The Cubot Note Plus features premium specifications for a budget device that require specific optimization:
- FullHD Display: The 1920Ă1080 resolution at 424 ppi provides crisp visuals but requires adequate storage for smooth operation
- Dual 16MP Cameras: Both front Sony and rear cameras benefit from good lighting conditions and proper app permissions
- USB Type-C: Keep the charging port clean and use quality cables for reliable power delivery
- 3GB RAM Management: Close background apps regularly due to Mali-T720 GPU limitations
- 2.5D Glass Care: Clean curved edges regularly for optimal touch sensitivity
- Fingerprint Optimization: The 360° scanner works best with multiple registered angles
Frequently Asked Questions
- Why does my Cubot Note Plus camera app crash after system updates?
- Camera app crashes after updates are common due to incompatible cached data. Uninstall camera updates, clear storage/cache, restart the device, then allow automatic updates. This resolves conflicts between old cached data and new system versions.
- Is the dual 16MP camera setup genuine or interpolated?
- The Cubot Note Plus features genuine Sony sensors â 16MP front camera with f/2.0 aperture and soft LED flash, plus 16MP rear camera with f/2.2 aperture. However, actual effective pixels may be slightly lower due to standard industry practices.
- Why does my 2800mAh battery drain so quickly?
- Rapid battery drain is often caused by dirty USB Type-C charging port, corrupted cached data, background app activity, or battery degradation. Clean the port, optimize settings, and consider battery replacement if over 2 years old.
- Can I expand the 32GB internal storage?
- Yes, the Cubot Note Plus supports microSD cards up to 128GB through a dedicated slot (not hybrid). Move media files, photos, and compatible apps to SD card to free up internal storage for optimal system performance.
- Whatâs special about the USB Type-C port on this budget device?
- The Cubot Note Plus was among the first budget smartphones to feature USB Type-C charging, providing faster charging speeds and reversible connector convenience. However, keep the port clean as lint buildup is the most common charging issue.
Conclusion
Flashing the official Cubot Note Plus V12 stock firmware provides comprehensive solutions for bootloop crashes, camera app failures, battery drain problems, and fingerprint scanner malfunctions. The May 2018 V12 release represents the most optimized firmware available for this FullHD MediaTek MT6737T-powered device, with enhanced Sony camera support, improved USB Type-C charging, and refined system stability.
With proper SP Flash Tool usage and following safety protocols, users can restore their Cubot Note Plus to factory-fresh performance while maximizing the premium features like the genuine dual 16MP camera setup, FullHD display, and modern USB Type-C connectivity. The deviceâs impressive specifications for a budget smartphone make it an excellent choice when properly maintained through firmware optimization and regular storage management.
Success? Share your experience in the comments, especially if you resolved camera crashes through update uninstallation or improved battery life through port cleaning. Your feedback helps other Cubot Note Plus users maintain their FullHD devices successfully!
