The M-Horse CT1 was an ultra-budget 3G smartphone from 2017 designed for the most basic mobile tasks. It runs Android 5.1 Lollipop on a low-power Spreadtrum SC7731 processor and is equipped with a critically low amount of RAM (typically 1GB or less). This hardware is severely underpowered for its operating system, which results in a deeply compromised user experience. The most common problems include constant system-wide freezing, debilitating lag that makes the phone almost unusable, and frequent application crashes as the system runs out of memory. These performance bottlenecks often escalate into more severe failures, such as the phone getting stuck in a bootloop or rebooting randomly. For owners of this device, reinstalling the official stock firmware is the only reliable method to address these deep-seated software issues.
This guide provides the official stock ROM package for the M-Horse CT1. As a Spreadtrum (UNISOC) device, it must be flashed using the SPD Upgrade Tool.
M-Horse CT1 Firmware Details
Below are the key specifications for the M-Horse CT1. This firmware will restore the device to its Android 5.1 Lollipop software. Note that this is a Spreadtrum device and requires the SPD Upgrade Tool.
| Attribute | Details |
|---|---|
| 📱 Device | M-Horse CT1 |
| 🆔 Chipset | Spreadtrum SC7731 |
| 🤖 Android OS | 5.1 Lollipop |
| ✅ Build Version | 05052017 |
| 📂 File Type | PAC Firmware |
| 💻 Flashing Tool | SPD Upgrade Tool |
Download Official Firmware for M-Horse CT1
- Build: 05052017
- File Name: M-Horse_CT1_05052017_5.1_SPD.zip
- Size: 470MB
- 🔗 Download Link: Download (Google Drive)
Crucial Prerequisites Before Flashing
Before you begin, back up any accessible data. This procedure will permanently delete everything on the phone.
- The latest version of the SPD Upgrade Tool.
- The correct Spreadtrum USB drivers installed on your PC.
How to Flash the Firmware
This firmware is in .pac format and must be installed using the SPD Upgrade Tool on a Windows computer. Here is a brief overview:
- Download and extract the
M-Horse_CT1_05052017_5.1_SPD.zipfile to a new folder. - Install the required Spreadtrum USB drivers on your computer.
- Launch the SPD Upgrade Tool (UpgradeDownload.exe).
- Click the first “Load packet” gear icon and select the
.pacfile from the extracted firmware folder. - Click the “Start downloading” (Play) button.
- Completely power off your M-Horse CT1 and remove the battery.
- Hold the Volume Down button on your phone and connect it to the PC via a USB cable.
- The flashing process will begin automatically and will show a green “Passed” message when complete.
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 a Spreadtrum device is an advanced procedure that will erase all your data and carries a significant 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.
