Lyf Flame 6 LS-4005 Firmware Flash File Download [Stock Rom]

The Lyf Flame 6 (LS-4005) was an ultra-low-cost 4G smartphone from 2016, designed to be one of the most affordable entry points into the Reliance Jio ecosystem. Its functionality, however, was severely compromised by its hardware. The device runs Android 5.1 Lollipop on a Spreadtrum SC9830A processor and a critically low 512MB of RAM. This extreme lack of memory makes the phone almost unusable for modern tasks. The user experience is defined by crippling system freezes where the phone becomes completely unresponsive, and constant application crashes as the system runs out of memory. These performance issues often lead to more severe problems like the phone getting stuck in a bootloop or rebooting randomly. For anyone attempting to restore this device to a basic functional state, a clean installation of the stock firmware is the only viable solution.

This guide provides the official stock ROM package for the Lyf Flame 6. It is a Spreadtrum (UNISOC) device and must be flashed using the SPD Upgrade Tool.

Lyf Flame 6 (LS-4005) Firmware Details

Below are the key specifications for the Lyf Flame 6. This firmware will restore the device to its Android 5.1 Lollipop software. Note that this is a Spreadtrum device and requires the SPD Upgrade Tool.

Download Official Firmware for Lyf Flame 6 (LS-4005)

• Build: 06_08
  • File Name: Lyf_Flame_6_LS-4005_06_08.zip
  • Size: 383MB
  • 🔗 Download Link: Download (MediaFire)

Why Flash This Specific Firmware?

A full firmware reinstallation is the only practical solution for the severe, hardware-induced problems this phone faces:

• End Crippling System Freezes: To combat the constant hangs and unresponsiveness caused by the 512MB of RAM, a clean installation of the 06_08 firmware clears out all residual data, giving the Android 5.1 OS the best possible chance to run without freezing.
• Fix a Startup Bootloop: If your phone is stuck in a restart loop, flashing the 06_08 ROM is the definitive way to fix it if the cause is software corruption. If the problem persists after a successful flash, the battery has likely failed.
• Stop Apps from Crashing: If essential apps crash immediately upon launch, it is a clear symptom of memory exhaustion. Flashing this firmware package reinstalls the base Android 5.1 system, freeing up the maximum possible memory for apps to run.
• End Random Reboots: An unstable system often restarts on its own. Reinstalling the original system files from the 06_08 build can resolve the software corruption that triggers these crashes and improve overall stability.
• Recover an Unresponsive “Bricked” Phone: In a worst-case scenario where a software error has left the phone completely unresponsive, forcing a firmware flash using the SPD Upgrade Tool is the last available recovery method.

Crucial Prerequisites Before Flashing

Before you begin, back up any accessible data. This procedure will permanently delete everything on the phone.

• The latest version of the SPD Upgrade Tool.
• The correct Spreadtrum USB drivers installed on your PC.

How to Flash the Firmware

This firmware is in .pac format and must be installed using the SPD Upgrade Tool on a Windows computer. Here is a brief overview:

1. Download and extract the firmware .zip file to a new folder.
2. Install the required Spreadtrum USB drivers on your computer.
3. Launch the SPD Upgrade Tool (UpgradeDownload.exe).
4. Click the first “Load packet” gear icon and select the .pac file from the extracted firmware folder.
5. Click the “Start downloading” (Play) button.
6. Completely power off your Lyf Flame 6 and remove the battery.
7. Hold the Volume Down button on your phone and connect it to the PC via USB cable.
8. The flashing process will begin automatically and will show a “Passed” message when complete.

For a complete, step-by-step tutorial with screenshots, please follow our master guide:

→ How to Use the SPD Upgrade Tool to Flash Your Smartphone

Disclaimer: Flashing a Spreadtrum device is an advanced procedure that will erase all your data and carries a significant risk of permanently damaging your device if not done correctly. We are not responsible for any data loss or hardware failures. Proceed with extreme caution.