The Kimfly M12 is a low-cost smartphone running Android 6.0, designed for entry-level users. Owners commonly complain about frequent bootloops, stuck logo after update, rapid battery drain, system freezing, very slow performance, app crashes, memory errors, and an inability to install or open Play Store apps. Reports also include disconnecting Wi-Fi, “no service” on SIM, and frustrating experience with fast-draining removable batteries.
Flashing the official SPD firmware below can restore a dead or unstable device to its factory state, fix corrupted OS, and resolve repeated system faults.
Kimfly M12 Firmware Details
| Device Name: | Kimfly M12 |
| Model: | M12 |
| Chipset: | Spreadtrum SC7731C, Quad-core 1.2GHz |
| GPU: | Mali-400 MP2 |
| Android Version: | Android 6.0 Marshmallow |
| Firmware Version: | LX_V2.0_20170620_6.0 |
| Build Date: | June 20, 2017 |
| File Size: | 802MB |
| File Type: | PAC (SPD Upgrade Tool firmware, .zip) |
| Flashing Tool: | SPD/Spreadtrum Upgrade Tool or ResearchDownload |
| Display: | 5.5-inch IPS, 480×800 pixels, 196ppi |
| RAM / Storage: | 1GB RAM / 8GB ROM (expandable via microSD up to 32GB) |
| Rear Camera: | 8MP, LED flash |
| Front Camera: | 2MP |
| Battery: | 2800mAh Li-ion (removable) |
| SIM: | Dual SIM (3G/2G) |
| Other: | Wi-Fi, Bluetooth 3.0, Accelerometer, Proximity, 3.5mm jack |
Download Official Firmware for Kimfly M12
This firmware restores dead phones, removes bootloop or logo hang, fixes complete OS corruption, broken Play Store, and uninstallable apps. Use it after failed root, update, or app error to return your M12 to stable factory condition.
📄 Filename: Kimfly_M12_LX_V2.0_20170620_6.0.zip
📦 Size: 802MB
🗓️ Build Date: June 20, 2017
🔢 Build Version: LX_V2.0_20170620_6.0
🤖 Android Version: 6.0 Marshmallow
⬇️ Download Link: MediaFire
How to Flash the Firmware
Follow these 5 quick steps to safely flash Kimfly_M12_LX_V2.0_20170620_6.0.zip to your phone:
- Download and extract
Kimfly_M12_LX_V2.0_20170620_6.0.zipand the SPD Upgrade Tool to your PC. - Install Spreadtrum USB drivers and run the SPD Upgrade Tool.
- Load the .PAC file from the firmware folder into the tool interface.
- Power off your Kimfly M12, connect it to PC via USB (hold both volume keys for detection if required).
- Click “Start/Download” in the tool, wait for the green pass message, then unplug and reboot.
For an illustrated step-by-step guide see this SPD flashing tutorial.


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