Celkon Star 4G Plus Firmware Flash File Download [Stock Rom]

This page provides the official download links for the Celkon Star 4G Plus stock ROM. The Star 4G Plus is an entry-level smartphone from 2017 designed to provide affordable access to 4G VoLTE networks. If your phone is stuck in a bootloop, has been infected by malware that a factory reset can’t remove, or is experiencing software-related network issues, flashing the stock firmware is the definitive solution. This package contains the original Android 7.0 Nougat software in a .pac file format, designed for the Spreadtrum (SPD) chipset inside the device.

Reinstalling the firmware via the SPD Upgrade Tool will perform a complete wipe of the device, resolving deep-seated software errors. It is the most effective method to unbrick a Celkon Star 4G Plus and restore it to its original, out-of-the-box condition. We have provided two firmware versions below; it is generally recommended to use the latest one.

Celkon Star 4G Plus: Quick Device Specifications

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

Device Model:

Celkon Star 4G Plus

Release Date:

September 2017

Chipset:

Spreadtrum SC9832A (Quad-core 1.3 GHz)

Display:

5.0 inches, 480 x 854 pixels (FWVGA)

Battery:

2200 mAh, Removable Li-Ion

RAM/Storage:

1GB RAM / 8GB Internal Storage

Key Features:

4G VoLTE Support, Front Camera with LED Flash

Required Downloads for Flashing

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

• SPD Upgrade Tool
• Spreadtrum USB Drivers
• The Celkon Star 4G Plus Firmware Package (choose a version from the table below)

Celkon Star 4G Plus Firmware Download Links

How to Flash Celkon Star 4G Plus 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 from the folder 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 Star 4G Plus 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 Star 4G Plus.

1. 4G VoLTE Not Working or Dropping Calls

Cause: The Voice over LTE feature can fail due to corrupted modem configuration files, a bad software update, or incorrect network settings.

Solution: A full flash with the stock .pac file is the best way to resolve software-based network issues. It completely rewrites the modem and baseband partitions with the original, stable files from the manufacturer, which often restores VoLTE functionality.

2. SPD Upgrade Tool Fails or Doesn’t Detect the Phone

Cause: This is almost always a driver issue or an incorrect connection method. The PC is not recognizing the phone in its special Spreadtrum download mode.

Solution: Reinstall the Spreadtrum drivers and restart your computer. Use a high-quality USB cable and a different USB port. Follow the connection sequence precisely: power off the phone, click “Start” in the tool, press and hold Volume Down, then plug in the cable. If Volume Down doesn’t work, try Volume Up.

3. Persistent Adware or Virus Infections

Cause: Budget smartphones can sometimes be targeted by malware that embeds itself as a system app, making it impossible to remove with a simple factory reset.

Solution: Flashing the stock ROM 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 firmware version should I download, V09 or V10?

It is always recommended to start with the latest version, which is V10. It is more likely to contain bug fixes, security patches, and stability improvements over the older V09 build. Only use V09 if V10 fails or if you have a specific reason to downgrade.

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

Often, a full flash with the SPD Upgrade Tool will wipe the partition where the FRP lock is stored, effectively bypassing it. However, this is not guaranteed for all security patch levels. It is a common method used to remove FRP on Spreadtrum devices.

Why is my internet slow on the Celkon Star 4G Plus?

While the phone supports 4G, its hardware is entry-level. Actual internet speeds depend heavily on your mobile carrier, signal strength in your area, and network congestion. A clean firmware flash ensures the modem is working optimally, but it cannot improve upon the phone’s hardware capabilities or your local network conditions.

My front flash isn’t working for selfies. Can this firmware fix it?

If the issue is caused by a software bug or a driver crash, then yes, reinstalling the stock firmware is very likely to fix it. If the LED hardware itself has failed, a software flash will not be able to repair it.

Conclusion

Restoring the official stock firmware on your Celkon Star 4G Plus is the most effective method for fixing major software issues, from network problems to bootloops and malware. This guide provides the authentic firmware files and a reliable flashing method to get your 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. Your feedback helps our community!