The Digma Citi Z510 3G is an entry-level smartphone from 2016, notable for its compact 5-inch screen and dual-sim capabilities. It was released with Android 5.1 Lollipop, providing a basic Android experience for users. Given its age and modest hardware, the device can suffer from significant performance lag and software instability. For owners looking to restore the phone to its original, functional state, flashing the official stock firmware is the most reliable solution.
This guide provides the official firmware package and a clear, safe path to reinstalling the software on your device.
Digma Citi Z510 3G Firmware Details
Below are the key specifications for this official firmware package:
| Attribute | Details |
|---|---|
| 📱 Device | Digma Citi Z510 3G |
| 🆔 Chipset | Spreadtrum SC7731 |
| 🤖 Android OS | 5.1 Lollipop |
| 🔢 Build Number | 20160708 |
| 📂 File Type | .PAC Firmware |
| 💻💻 Flashing Tool | SPD Upgrade Tool |
Why Flash the Stock Firmware?
Reinstalling the official firmware is the best solution for a variety of critical software issues on the Citi Z510:
- Unbrick Your Phone: Revives a device that fails to boot past the Digma logo or is completely unresponsive (soft-bricked).
- Restore Performance: A full flash is the best way to clear system memory and restore the phone’s original speed, especially on a device with limited RAM.
- Eliminate Viruses: A complete flash is the most thorough method for removing malicious software that a factory reset might miss.
- Fix System Errors: Resolves frequent application crashes, network issues, and other system-wide bugs that can occur on older devices.
⚠️ Important Prerequisites
Before you begin, ensure you have the necessary drivers and tools. You will need to download the SPD Upgrade Tool and install the correct Spreadtrum (Unisoc) USB drivers on your computer. A full backup of your device data is also highly recommended as this process will erase everything.
Download Official Firmware for Digma Citi Z510 3G
- File Name: Digma_Citi_Z510_3G_20160708_SPD.zip
- Size: 461 MB
- 🔗 Download Link (Google Drive): Digma Citi Z510 3G Firmware
How to Flash the Firmware
This device’s firmware is a .pac file and must be installed using the SPD Upgrade Tool. Here is a summary of the main steps:
- Download and extract the firmware package:
Digma_Citi_Z510_3G_20160708_SPD.zip. - Install the correct Spreadtrum (Unisoc) USB drivers on your PC.
- Launch the SPD Upgrade Tool and load the
.pacfirmware file from the extracted folder. - Power off your Digma Citi Z510. This model has a removable battery, so it’s best to take it out for 10 seconds to ensure a full shutdown.
- Connect the device to your computer while holding the Volume Down key to initiate the flash.
For a complete, step-by-step tutorial with screenshots and troubleshooting, please follow our master guide:
→ How to Use the SPD Upgrade Tool to Flash Your Smartphone
Disclaimer: Flashing firmware carries inherent risks. If instructions are not followed precisely, it could damage your device. We are not responsible for any data loss or damage. Proceed with caution.
