The Mobicel R6 Plus is a budget Android smartphone built on the Spreadtrum/Unisoc SC7731E chipset. Common issues faced by real users include endless bootloops (stuck at the Mobicel logo) after failed updates, the device becoming completely dead and undetectable after a bad flash, malware and fast battery drain that survive factory resets, and network/IMEI problems after system/partition damage.
In all these cases, a full firmware reinstallation using the official PAC file and SPD Upgrade Tool is the most effective and proven repair.
Mobicel R6 Plus Firmware Details
| Attribute | Details |
|---|---|
| 📱 Device | Mobicel R6 Plus |
| 🆔 Chipset | Spreadtrum SC7731E |
| 🤖 Android OS | Version varies |
| ✅ Build Version | MDD_210820 |
| 📂 File Type | PAC Firmware |
| 💻 Flashing Tool | SPD Upgrade Tool / ResearchDownload |
Download Official Firmware for Mobicel R6 Plus
- Build: MDD_210820
- File Name: Mobicel_R6_Plus_MDD_210820_SPD.zip
- Size: 860MB
- 🔗 Download Link: Download (MediaFire)
Why Flash This Specific Firmware?
- Fix Bootloop/Logo Hang: If your R6 Plus gets stuck at the Mobicel logo, a full official ROM flash is the reliable, proven fix—widely recommended after failed resets or updates.
- Unbrick a Dead Device: If your smartphone becomes unresponsive or is not detected by a PC after interrupted flashing, this PAC firmware and SPD Upgrade Tool can bring it back to life.
- Remove Malware & Restore Battery: Malware, ads, and abnormal battery drain reappearing after resets are permanently wiped only by clean firmware flashing.
- Repair Network/IMEI or Wi-Fi Bugs: If the phone cannot access a network, has “null IMEI,” or cannot use Wi-Fi securely, a full firmware flash restores system partitions and hardware functions.
Crucial Prerequisites Before Flashing
- The latest SPD Upgrade Tool
- Properly installed Spreadtrum USB drivers on Windows
Always backup critical data—this process erases all phone content.
How to Flash the Firmware
- Extract
Mobicel_R6_Plus_MDD_210820_SPD.zipto obtain the.pacfile. - Install Spreadtrum drivers as needed.
- Open SPD Upgrade Tool, click the gear icon, and load the PAC ROM.
- Click “Start Downloading” then connect the powered-off phone (often holding Volume Down) to PC.
Full illustrated walkthrough available at:
→ How to Use the SPD Upgrade Tool to Flash Your Smartphone
Disclaimer: Incorrect firmware or power interruptions can brick your device. Proceed only if sure the PAC matches your model—no responsibility for hardware/data loss.
