Xmi X9966
Xmi X9966 is a Xmi firmware file listed under Xmi, distributed as Xmi_X9966_MT6571_20141225_4.4.2.zip with a download size of 680 MB. It is built for the MediaTek MT6571 chipset and runs Android 4.4 (KitKat), with a firmware build date of December 25, 2014. It is flashed with SP Flash Tool. It was published on April 28, 2026. This page has been viewed 24 times. It is available to download free of charge. Before flashing, verify the file matches your exact device model and back up your data.
About Xmi X9966
Xmi X9966 Stock Firmware (Flash File) The Flash File will help you Upgrade, Downgrade, or re-install the Stock Firmware (OS) on your Mobile Device. In addition, the Flash File (ROM) also enables you to repair the Mobile device if facing any Software Issue, Bootloop Issue, IMEI Issue, or Dead Issue. File Name: Xmi_X9966_MT6571_20141225_4.4.2.zip File Size: 680 MB Flash Tool: SP Flash Tool for Windows | SP Flash Tool for Linux How to Flash (install): Follow Tutorial (Mediafire)
File Details
| File name | Xmi X9966 |
|---|---|
| Package | Xmi_X9966_MT6571_20141225_4.4.2.zip |
| Brand / Platform | Xmi |
| Category | Xmi |
| Chipset | MediaTek MT6571 |
| Android version | Android 4.4 (KitKat) |
| Build date | December 25, 2014 |
| Flash tool | SP Flash Tool |
| Package format | ZIP archive |
| File size | 680 MB |
| Date added | April 28, 2026 |
| Price | Free |
How to flash Xmi X9966 with SP Flash Tool
- Confirm Xmi X9966 matches your exact device model and that the phone uses the MT6571 chipset.
- Back up your personal data, as flashing firmware can erase the device. Charge the battery above 50%.
- Download the file (680 MB) using the button above and extract it on a Windows PC.
- Install the MediaTek VCOM / USB drivers, then open SP Flash Tool.
- In the tool, load the scatter file (MTxxxx_Android_scatter.txt) from the extracted folder.
- Start the flash, then power the phone off, then connect it (hold Volume Up or Down if it is not detected).
- Wait for the success message before disconnecting. Use "Download Only" — "Format All + Download" erases IMEI/NVRAM calibration.
Guides for this firmware
- Installing MediaTek VCOM Drivers for SP Flash ToolTo flash firmware on a MediaTek-based device, you must use the SP Flash Tool in conjunction with MediaTek VCOM USB drivers. These drivers allow your computer to communicate with the device's chipset…
- What is a Scatter File? Loading MediaTek Firmware in SP Flash ToolA scatter file is a text document, typically named MTxxxx_Android_scatter.txt , that acts as a map for the SP Flash Tool. It tells the software exactly where each partition of the firmware should be…
- Fix SP Flash Tool Error 4032: S_FT_ENABLE_DRAM_FAILSP Flash Tool Error 4032, also known as S_FT_ENABLE_DRAM_FAIL , occurs when the software cannot initialize the device's internal memory (DRAM) during the flashing process. This typically happens due…
Frequently asked questions
Is Xmi X9966 free to download?
Yes, Xmi X9966 can be downloaded free of charge from this page.
How large is the download?
The Xmi X9966 package is 680 MB.
Which tool do I need to flash Xmi X9966?
Xmi X9966 is MediaTek MT6571 firmware, so it is flashed with SP Flash Tool using the scatter file (MTxxxx_Android_scatter.txt).
What Android version is Xmi X9966?
This firmware is Android 4.4 (KitKat), built on December 25, 2014.
Which devices is this firmware for?
This file is intended for Xmi devices. Always confirm it matches your specific model before flashing.