Zen Admire Star Firmware Flash File Download [Stock Rom]

The Zen Admire Star is a compact, budget-tier Android smartphone running on a Spreadtrum SC7731C chipset. While designed for basic use, its most common and critical failure point, widely demonstrated in mobile repair tutorials across YouTube, is a software brick where the device freezes indefinitely on the “Zen” startup logo. This bootloop condition makes the phone completely inaccessible. Reinstalling the operating system by flashing this official V12 stock firmware is the standard and most reliable method to fix this software corruption and bring the device back to life.

Zen Admire Star Firmware Details

Download Official Firmware for Zen Admire Star

Why Flash This Specific Firmware?

• Fix the “Hang on Logo” Soft Brick: This is the most prevalent technical issue for the Admire Star. Flashing the stock ROM rewrites the entire system partition, resolving the data corruption that causes the phone to get stuck during its boot sequence.
• Bypass Google FRP Lock and User Locks: A primary use-case for this firmware is to remove security locks. If you are locked out of your phone after a factory reset (FRP) or have forgotten the pattern/PIN, a full flash will wipe these locks and grant access.
• Recover a Dead Device After a Bad Flash: If a previous flashing attempt failed or used the wrong file, leaving the phone dead or unresponsive, this official firmware can often revive it by installing the correct bootloaders and partitions.
• Eliminate Viruses and Slow Performance: Restores the phone to a clean, factory state, removing any malware, adware, or junk files that cause extreme lag, overheating, and app crashes.

Bug Fixes and Stability Improvements in This Build

• Firmware V12 (May 24, 2017): This build is a critical stability release containing updated boot parameters that directly address the kernel panic issue responsible for the common “hang on logo” problem reported by users.
• Restores all original system applications and services, fixing the “Unfortunately, the process com.android.systemui has stopped” errors that can appear on a corrupted system.
• Includes the correct baseband and NVRAM files for the SC7731C chipset, resolving potential network connectivity issues like dropped calls or no mobile data.
• Re-calibrates system drivers, which can fix minor hardware-related bugs like an unresponsive touch screen or camera connection errors that are caused by software glitches.

How to Flash the Firmware

Flashing the `.pac` firmware onto your Zen Admire Star requires a PC and the SPD Upgrade Tool. Follow these summarized steps:

1. Download and extract the Zen_Admire_Star_SC7731C_V12_24052017_SPD.zip file on your computer.
2. Launch the SPD Upgrade Tool.
3. Click the gear icon (“Load Packet”) and select the `.pac` file from the extracted firmware folder.
4. After the file has been loaded, click the play icon (“Start Downloading”).
5. Power off your Zen Admire Star completely.
6. Press and hold the Volume Down button, and while holding it, connect the phone to your computer via a USB cable.
7. The tool will detect the device and begin the flashing process. You can release the volume button.
8. Wait for the process to finish, indicated by a green “Passed” message.
9. Disconnect your phone and turn it on. The initial boot may take several minutes.

For a detailed guide with screenshots and necessary drivers, please see our official tutorial: How to Use the SPD Upgrade Tool.