This page provides the official download links for all available stock ROM versions for the Celkon Star 4G. The Star 4G is a compact, ultra-budget 4-inch smartphone designed to provide essential 4G VoLTE connectivity. If your phone is stuck in a bootloop, has been infected by malware, or is experiencing software-based network problems, 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 Star 4G and restore it to a clean, factory state. Please read the note under the download table for guidance on which of the three provided versions to choose.
Immediate Action Notice: This flashing process will permanently erase all data on your Celkon Star 4G. A full backup of your personal files is critical. As of today, Android 6.0 Marshmallow is severely outdated and has numerous unpatched security vulnerabilities.
Celkon Star 4G: Quick Device Specifications
Please confirm these details match your device to ensure you are using the correct firmware file.
- Device Model:
- Celkon Star 4G
- Release Date:
- Circa 2017
- Chipset:
- Spreadtrum SC9832 (Quad-core 1.3 GHz)
- Display:
- 4.0 inches, 480 x 800 pixels (WVGA)
- Battery:
- 1800 mAh, Removable Li-Ion
- RAM/Storage:
- 1GB RAM / 8GB Internal Storage
- Key Features:
- Compact 4-inch Design, 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 Star 4G Firmware Package (choose a version from the table below)
Celkon Star 4G Firmware Download Links
| Filename / Version (Build Date) | Android Version | Size | Download Link/s |
|---|---|---|---|
| Celkon_Star_4G_V09 | 6.0 Marshmallow | 735MB | Download (AndroidFileHost) |
| Celkon_Star_4G_V07 (Aug 2017) | 6.0 Marshmallow | 735MB | Download (MediaFire) |
| Celkon_Star_4G_V03 (Jul 2017) | 6.0 Marshmallow | 735MB | Download (MediaFire) |
How to Flash Celkon Star 4G 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.
- Preparation: Download your chosen firmware version, the SPD Upgrade Tool, and Spreadtrum drivers. Extract all zip files into a single, easy-to-access folder.
- Driver Installation: Install the Spreadtrum USB drivers on your computer and restart if prompted.
- Load Firmware: Run
UpgradeDownload.exe. Click the first Gear icon (“Load Packet”) and select the.pacfirmware file you extracted. - Start Flashing: Click the Play button (“Start Downloading”) to put the tool into flashing mode.
- Connect the Phone: Power off your Celkon Star 4G completely. Press and hold the Volume Down key. While holding the key, connect the phone to your PC via a USB cable.
- 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.
1. 4G VoLTE Not Working or No Network
Cause: A failed update or software corruption can damage the modem configuration files, leading to an inability to connect to the 4G network or make VoLTE calls.
Solution: A full flash with the official stock .pac file is the best way to resolve this. It restores the original, correct radio and modem firmware, which can fix software-based connectivity problems.
2. SPD Upgrade Tool Fails or gets stuck on “Checking Baudrate”
Cause: This is a classic Spreadtrum driver or connection issue. The computer is trying to communicate with the phone but is not getting the correct response.
Solution: Reinstall the Spreadtrum drivers and restart your PC. Use a different USB port and a high-quality USB cable. Make sure to press and hold the correct boot key (usually Volume Down) *before* plugging in the cable.
3. Poor Battery Life
Cause: The Celkon Star 4G has a small 1800 mAh battery. While a software bug can cause abnormal drain, the battery life will be limited even under normal conditions.
Solution: Flashing the stock ROM ensures there are no rogue apps or services draining the battery. After flashing, keep brightness low, turn off Wi-Fi and mobile data when not in use, and use the phone for essential tasks to get the most out of the small battery.
Frequently Asked Questions (FAQs)
- Which of the three firmware versions should I use?
- It is always best to start with the highest version number available, which is V09. This build is the most likely to be the most stable and contain the latest fixes from the manufacturer. Only try the older versions if V09 fails to flash or causes issues with your device.
- Will flashing this firmware remove the FRP (Google Account) lock?
- Yes, in most cases. A full flash using the SPD Upgrade Tool overwrites the device partitions, including the one that stores the FRP lock. This is a common and effective method for bypassing FRP on Spreadtrum devices.
- Is this phone the same as the Celkon Smart 4G?
- They are extremely similar devices, both featuring a 4-inch display, 1GB RAM, 8GB storage, and a Spreadtrum chipset. The main differences are minor, such as the Star 4G having a slightly larger battery (1800 mAh vs 1500 mAh) and potential design variations.
- Can I play modern games on this phone?
- No. The Celkon Star 4G has very basic hardware and is not designed for gaming. It is intended for calls, messaging, and very light internet use.
Conclusion
Restoring the official stock firmware on your Celkon Star 4G is the most effective way to fix major software issues, from a bootloop to malware infections or network problems. This guide provides all the available firmware versions and a reliable flashing method to get your compact device back in working order. Choose 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!
