Mobicel V4 Firmware Flash File Download [Stock Rom]

The Mobicel V4 is a budget smartphone running on a Spreadtrum chipset. Users commonly report issues with the device’s touchscreen becoming unresponsive or erratic, particularly along the edges of the display. Another frequent problem is SIM cards not being recognized or experiencing constant network disconnections, making the device unreliable for calls and mobile data. The phone is also prone to sudden freezes and unexpected reboots, especially when using camera applications or during video playback. These issues are typically caused by corrupted touch drivers and NVRAM partition errors. Flashing the official stock firmware provides a complete system restoration, resolving touch calibration problems and restoring stable network functionality.

This guide provides the official stock ROM package for the Mobicel V4. As a Spreadtrum (UNISOC) device, it must be flashed using the SPD Upgrade Tool.

Mobicel V4 Firmware Details

Below are the key specifications for the Mobicel V4. This firmware will restore the device to its original factory software. Note that this is a Spreadtrum (UNISOC) device and requires the SPD Tool.

Download Official Firmware for Mobicel V4

• Build: 120418
  • File Name: Mobicel_V4_120418_SPD.zip
  • Size: 716 MB
  • 🔗 Download Link: Download (Google Drive)

Why Flash This Specific Firmware?

Flashing the official 120418 firmware addresses the most critical touch and connectivity issues reported by Mobicel V4 users:

• Fix Unresponsive Touchscreen and Edge Detection Problems: The V4 frequently develops dead zones, particularly along the screen edges, making navigation difficult. This firmware reflashes the touch panel drivers and recalibrates the entire touch surface.
• Resolve SIM Card Recognition and Network Stability Issues: A corrupted NVRAM partition causes the device to lose IMEI information, resulting in permanent “No Service” status. This firmware restore repairs the NVRAM, restoring reliable SIM card detection and network connectivity.
• Stop Random Freezes and Unexpected Reboots: Users report the device freezing during use or restarting without warning, especially when using the camera. A clean firmware install replaces corrupted system files that cause these stability issues.
• Fix Camera Application Crashes and Focus Problems: The camera app may crash frequently or fail to focus properly. This process reinstalls the camera drivers and recalibrates the autofocus mechanism.

Crucial Prerequisites Before Flashing

Before you begin, back up any accessible data. This procedure will permanently delete everything on the phone.

• Install the latest SPD Upgrade Tool (Research Download) on your Windows PC.
• Install the correct Spreadtrum (UNISOC) USB Drivers.
• A reliable USB cable and a PC with a stable power supply.
• Ensure your Mobicel V4 has at least 50% battery charge.

How to Flash the Firmware

This firmware must be installed using the SPD Upgrade Tool on a Windows computer. The process involves connecting the powered-off phone to the PC.

1. Download and extract the Mobicel_V4_120418_SPD.zip file to a new folder.
2. Install the Spreadtrum USB drivers and the SPD Upgrade Tool on your computer.
3. Launch the ResearchDownload.exe tool.
4. Click on the “Load Packet” button and navigate to the extracted firmware folder. Select the .pac file.
5. Completely power off your Mobicel V4.
6. Click the “Start” button in the SPD tool.
7. While the tool is waiting, connect your powered-off Mobicel V4 to the PC via the USB cable.
8. Wait for a “Download OK” or “Success” message before disconnecting the phone.

For a complete, step-by-step tutorial with screenshots, please follow our master guide:

→ How to Use the SPD Upgrade Tool to Flash Your Smartphone

Disclaimer: Flashing your device is an advanced procedure that will erase all your data and carries a risk of permanently damaging your device if not done correctly. We are not responsible for any data loss or hardware failures. Proceed with extreme caution.