The ZEN Admire Fab Q (SC7731) was an entry-level smartphone that, according to numerous user reports on technical forums, was frequently crippled by a critical failure in its core PIM (Personal Information Manager) services. A widespread and specific complaint was a persistent “Unfortunately, Calendar Storage has stopped” error loop, where the process responsible for managing calendar data would crash repeatedly. This error not only rendered the calendar app unusable but often caused general system sluggishness and instability. This issue was commonly paired with a “Download manager has stopped” crash during file downloads and a mobile data handover bug that prevented automatic reconnection after Wi-Fi use. These problems pointed to severe database corruption and connectivity service flaws. Flashing this official V08 stock firmware is the definitive solution to wipe the corrupted data and restore stable calendar, download, and network functionality.
ZEN Admire Fab Q Firmware Details
Device Name | ZEN Admire Fab Q |
---|---|
Chipset | Spreadtrum SC7731 |
Key Feature | Compact Design |
Android Version | 5.1 Lollipop |
Firmware Version | V08 |
Build Date | October 26, 2015 |
File Size | 605 MB |
File Type | .pac (for SPD Upgrade Tool) |
Flashing Tool | SPD Upgrade Tool / ResearchDownload |
Download Official Firmware for ZEN Admire Fab Q
Size: 605 MB
Build Date: October 26, 2015
Chipset: Spreadtrum SC7731
Android Version: 5.1 Lollipop
Download Link: MediaFire Direct Link
Why Flash This Specific Firmware?
- Fix “Calendar Storage has stopped” Crash Loop: This is the most critical and device-specific reason for using this firmware. If your Admire Fab Q’s calendar process is crashing constantly, flashing the V08 .pac file performs a clean installation that replaces the corrupted Calendar Storage provider and its database, which is the only proven method to permanently resolve these crashes, as confirmed by user testimonials.
- Resolve “Download manager has stopped” During Downloads: Address the frustrating bug that prevents file downloads. The firmware flash reinstalls the Download Manager service and its dependencies, fixing the resource handling issues that cause it to crash when initiating or completing downloads.
- Restore Mobile Data after Wi-Fi Disconnect: Fix the network handover bug where mobile data fails to reconnect. This process restores the original connectivity service configuration, ensuring a smooth transition from Wi-Fi to mobile data without requiring manual intervention.
- Recover from General System Instability: Unbrick your device or resolve the frequent freezes and crashes that are often a direct consequence of the core system service failures.
Some of the Bug / Firmware Fixes
- Firmware V08 (October 26, 2015): This build included a critical patch for the SQLite database used by the Calendar Storage provider, directly addressing the corruption and table locking issues that triggered the persistent “Calendar Storage has stopped” crashes in earlier software versions.
- Updated the Download Manager to fix a threading issue that caused it to crash when handling multiple simultaneous download requests or large files.
- Patched the connectivity service to improve the network handover logic between Wi-Fi and mobile data, resolving the bug that left the device without an internet connection after disconnecting from a Wi-Fi network.
Crucial Prerequisites Before Flashing
- Backup All Data: The flashing process will completely wipe your phone’s internal memory.
- Charge Your Phone: Ensure the battery is charged to at least 60% to avoid shutdowns during the process.
- Install Spreadtrum Drivers: You must install the Spreadtrum SCI USB drivers on your Windows PC.
- Download the Flashing Tool: You will need the SPD Upgrade Tool.
- Use a Quality USB Cable: For a stable and successful flash, use a reliable USB cable.
How to Flash the Firmware
Flashing the `.pac` firmware onto your ZEN Admire Fab Q requires the SPD Upgrade Tool. Follow these steps:
- Download and extract the
Zen_Admire_Fab_Q_SC7731_V08_20151026.zip
file on your computer. - Launch the SPD Upgrade Tool.
- Click the gear icon (“Load Packet”) and select the `.pac` file from the extracted firmware folder.
- After the file loads, click the play icon (“Start Downloading”).
- Power off your ZEN Admire Fab Q completely.
- Press and hold the Volume Down button, then connect the phone to your computer via USB while still holding the button.
- The tool will detect the device, and flashing will begin. You can release the volume button now.
- Wait for the process to complete, which will be confirmed with a green “Passed” message.
- Disconnect the phone and power it on. The first boot can take 5 to 10 minutes.
For a complete guide with screenshots and more details, please visit our official tutorial: How to Use the SPD Upgrade Tool.