Celkon Mega Firmware Flash File Download [Stock Rom]

This page provides the official download links for the Celkon Mega stock ROM. The Celkon Mega was a budget-friendly phablet released in 2017, offering a large 5.5-inch display for media consumption and 4G VoLTE connectivity. If your device is stuck in a bootloop, has been infected with malware, or is experiencing software-related network issues, flashing the stock firmware is the ultimate solution. This package contains the original Android 6.0 Marshmallow software in a .pac file format, designed for installation with the SPD Upgrade Tool on its Spreadtrum chipset.

Reinstalling the firmware will perform a complete wipe, removing all data, screen locks, and viruses. It is the most effective method to unbrick a Celkon Mega and restore it to a clean, factory state. We have listed two firmware versions below; it is always recommended to use the latest one.

Celkon Mega: Quick Device Specifications

Please confirm these details match your device to ensure you are using the correct firmware file.

Device Model:

Celkon Mega

Release Date:

2017

Chipset:

Spreadtrum SC9832 (Quad-core 1.3 GHz)

Display:

5.5 inches, 720 x 1280 pixels (HD)

Battery:

2700 mAh

RAM/Storage:

2GB RAM / 16GB Internal Storage

Key Features:

Large 5.5-inch Display, 4G VoLTE Support

Required Downloads for Flashing

You will need the following specific tools and drivers for Spreadtrum devices.

• SPD Upgrade Tool
• Spreadtrum USB Drivers
• A Celkon Mega Firmware Package (choose a version from the table below)

Celkon Mega Firmware Download Links

How to Flash Celkon Mega Firmware (.pac file)

This is a summary of the flashing process using SPD Upgrade Tool. For a more comprehensive guide with screenshots, please visit our detailed pillar article.

1. Preparation: Download your chosen firmware version, the SPD Upgrade Tool, and Spreadtrum drivers. Extract all zip files into a single, easy-to-access folder.
2. Driver Installation: Install the Spreadtrum USB drivers on your computer and restart if prompted.
3. Load Firmware: Run UpgradeDownload.exe. Click the first Gear icon (“Load Packet”) and select the .pac firmware file you extracted.
4. Start Flashing: Click the Play button (“Start Downloading”) to put the tool into flashing mode.
5. Connect the Phone: Power off your Celkon Mega completely. Press and hold the Volume Down key. While holding the key, connect the phone to your PC via a USB cable.
6. Completion: The tool should detect the phone and begin flashing. You can release the volume key once the progress bar appears. A green “Passed” message will indicate the process is complete. Disconnect the phone and power it on.

For in-depth instructions and troubleshooting for the SPD Upgrade Tool, please visit our complete guide: How to Use the SPD Upgrade Tool to Flash Your Smartphone.

Troubleshooting Common Issues

Here are some specific issues you might encounter with the Celkon Mega.

1. 4G VoLTE Not Working or No Network Signal

Cause: If your phone can’t make calls over 4G or has no signal, it could be due to corrupted modem firmware, especially after a failed update or rooting attempt.

Solution: A full flash with the official .pac file is the best fix. It restores the original, factory-tested radio and baseband firmware, which can resolve software-based connectivity problems and restore VoLTE functionality.

2. Unresponsive Touchscreen or “Ghost Touch”

Cause: An unresponsive touchscreen can be a hardware issue, but it is often caused by a software glitch, a corrupted driver, or a miscalibration of the touch digitizer.

Solution: Before assuming a hardware fault, a full firmware flash is a crucial troubleshooting step. It reinstalls the original touchscreen drivers and calibration settings from the factory. If the problem persists after a clean flash, it is likely a hardware issue.

3. Phone is Infected with Malware or Adware

Cause: Budget smartphones can sometimes be targeted by malicious apps that install themselves as system services, making them difficult to remove.

Solution: Flashing the stock .pac firmware is the only guaranteed way to remove such infections. The process completely formats the device storage, wiping out all applications and data—including the malware—and replacing them with a clean, original system image.

Frequently Asked Questions (FAQs)

Which of the two firmware versions should I use?

It is always best to flash the latest available version. In this case, that is V9 from February 13, 2017, as it is newer than the V8 build and most likely contains fixes and improvements.

Will this firmware update my phone to Android 7.0 Nougat?

No. Both of these firmware versions are for Android 6.0 Marshmallow. They will not upgrade your Android version.

Is this phone the same as the Celkon Mega 2 16?

No, they are different models. The Celkon Mega has a 5.5-inch screen and Android 6.0, while the Mega 2 16 has a 5-inch screen. They have different hardware and their firmware files are not interchangeable.

Will this firmware remove the FRP (Google Account) lock?

In most cases, yes. A full flash using the SPD Upgrade Tool often overwrites the device partitions where the FRP lock data is stored, effectively bypassing it. It is a common method for removing FRP on Spreadtrum devices.

Conclusion

Restoring the official stock firmware on your Celkon Mega is the most effective method for fixing major software issues, from a bootloop to network problems or malware. This guide provides the official firmware files and a reliable flashing method to get your large-screen device back into working order. Remember to use the latest firmware version for the best results and always back up your data first.

If this guide helped you, please share your experience in the comments, especially which firmware version worked for you. Your feedback helps our community!