The Celkon Millennia Everest was a budget-friendly phablet released in 2015, aiming to provide a large screen experience at an accessible price point. Unlike many contemporaries, it ran on a Spreadtrum SC7731 chipset and shipped with Android 4.4.2 KitKat. While it offered decent specs for its time, users frequently reported problems such as the device hanging on the boot animation, suffering from severe lag over time, and being susceptible to adware infections that were difficult to remove through normal resets. Installing the official Celkon Millennia Everest stock firmware is the definitive method to unbrick a dead phone, eradicate all performance issues and malware, and downgrade the OS to a clean, stable version. This guide provides the authentic SPD flash file and a clear, concise flashing procedure.
⚠️ WARNING — READ THIS FIRST: The process of flashing this stock ROM will delete all personal data from your Celkon Millennia Everest’s internal storage. It is crucial to create a backup of your photos, videos, contacts, and messages before proceeding if your device is still booting. This operation is designed for experienced users. Incorrect execution may result in a permanent hard brick. Ensure your phone’s battery is charged to at least 60% to avoid interruption during the firmware write process.
Celkon Millennia Everest Quick Specifications
- Device Name & Model
- Celkon Millennia Everest
- Release Year
- 2015
- Chipset (SoC)
- Spreadtrum SC7731G (Cortex-A7 Quad-core)
- Display
- 5.5-inch FWVGA (854 x 480 pixels)
- Battery
- 2500mAh (removable)
- RAM & Storage
- 1GB RAM / 8GB ROM (expandable via microSD)
- Original OS
- Android 4.4.2 KitKat
- Special Features
- Dual-SIM (3G), Auto Call Record, Smart Wake
Required Downloads for Flashing
Gather the following essential tools and files on your Windows computer to begin the installation process.
- SPD Upgrade Tool: Download SPD Upgrade Tool
- Spreadtrum USB Drivers: Download SPD Drivers
- Firmware Package: Download the official V13 file from the table below.
Celkon Millennia Everest Firmware Download
| Filename / Version (Build Date) | Android Version | Size | Download Link |
|---|---|---|---|
| Millennia_Everest_V13 (Aug 2015) | 4.4.2 KitKat | ~487 MB | Download MediaFire |
How to Flash Celkon Millennia Everest Firmware
- Install Drivers: Extract the downloaded SPD Drivers ZIP file and run the setup to install them on your PC. Restart your computer if prompted.
- Launch Tool: Extract the SPD Upgrade Tool ZIP file. Right-click on the application and select “Run as administrator” to launch it.
- Load Firmware: Click the “Load Package” button within the tool. Navigate to the extracted firmware folder and select the file with the .pac extension.
- Enter Download Mode: Ensure the phone is powered off. Remove and reinsert the battery. Now, press and hold the Volume Up button and, while holding it, connect the phone to the PC using a USB cable.
- Start Process: The tool should recognize the device and show a COM port. Click the “Start” button to initiate the firmware flash. Do not touch the cable or phone until the progress bar is complete and a “Success” message appears.
For a complete visual walkthrough with troubleshooting tips for each step, visit our detailed master guide: How to Use the SPD Upgrade Tool to Flash Your Smartphone.
Troubleshooting Common Celkon Millennia Everest Problems
While flashing usually resolves issues, here are some model-specific problems and their fixes:
- Continuous Boot Animation (No Boot): This is typically a sign of a corrupted
system.imgorboot.img. A full firmware flash with the SPD Tool is the only solution to rewrite these critical partitions and fix the bootloop on your Millennia Everest. - Extreme Lag and Freezing: This was a common user complaint often caused by bloated pre-installed apps and weak hardware struggling with modern app updates. Flashing the stock ROM provides a fresh start. After flashing, avoid installing resource-heavy applications to maintain performance.
- Baseband/IMEI Unknown: Spreadtrum chipsets are prone to IMEI corruption. After successfully flashing, if you have no network, you must restore your IMEI using a tool like Maui META 3G or Chimera Tool, entering the original IMEI from your phone’s box.
- SD Card Not Detected: If the phone fails to read memory cards after a flash, first test the SD card in another device. If the card works, the issue may be a faulty SD card reader hardware, which was a known point of failure on this model and may require physical replacement.
Frequently Asked Questions (FAQ)
- Is this firmware file compatible with all Millennia Everest models?
- This V13 firmware is designed for the standard Spreadtrum-based Celkon Millennia Everest. There were very few variants of this model, so it should be compatible. Always ensure your device model name matches exactly before flashing.
- How can I bypass Google FRP on my Millennia Everest?
- Flashing this official stock firmware will completely format the device, including the partition that stores the Google Account FRP (Factory Reset Protection) lock. This is the most effective way to remove FRP on your Millennia Everest.
- My phone is dead and doesn’t charge. Can I still flash it?
- Yes, the SPD flashing process can often revive a completely dead Celkon Millennia Everest that doesn’t show any charging light, as it powers the phone directly via USB during the download mode. Ensure you use a high-quality USB cable connected to a USB 2.0 port for the best chance of detection.
- Will this update my Android version to Lollipop?
- No. This is the original factory firmware (V13). Celkon did not release an official Android Lollipop update for the Millennia Everest. Flashing this will restore the device to its original Android 4.4.2 KitKat state.
- The flash fails at 90%. What does this mean?
- A failure at a high percentage often points to a hardware issue, such as a failing NAND memory chip. Try using a different USB port/cable and ensuring the battery is fully charged. If it persists, the phone may have a physical fault.
Conclusion
Installing the official Celkon Millennia Everest stock ROM is the most reliable way to solve complex software problems, from boot failures and relentless lag to persistent malware. This process gives your device a clean slate, restoring its original stability and performance. Bookmark this page for future reference and access to official tools. If you face any issues with the download links or the flashing steps, let us know in the comments section for prompt assistance.
