Lyf Water 7 LS-5504 Firmware Flash File Download [Stock Rom]

The Lyf Water 7 (LS-5504), launched in 2016, featured a 5.5-inch Full HD display, a capable Qualcomm Snapdragon 615 processor, and a notable 2GB of RAM, which was adequate for its Android 5.1 Lollipop OS. Despite its solid hardware for the time, users have reported several software-related issues over the years. Common complaints found on forums include the phone hanging on the LYF logo, getting stuck in a bootloop, and experiencing significant performance degradation after software updates or rooting attempts. Users on XDA Developers have also highlighted that the device can be difficult to boot into recovery mode, sometimes indicating a “manufacturer fault” in the key combination logic.

For those facing these software glitches, a clean installation of the official stock firmware is the most reliable solution. This process replaces the entire operating system, resolving corruption and restoring the phone to its factory state. As a Qualcomm-powered device, this requires using the QFIL tool.

Lyf Water 7 (LS-5504) Firmware Details

Below are the key specifications for the Lyf Water 7. These firmware packages will restore the device to its original Android 5.1 Lollipop software. Flashing requires the QFIL tool due to the Qualcomm chipset.

Download Official Firmware for Lyf Water 7 (LS-5504)

Two official builds are available. If you are unsure which to use, start with the newest build (v1.18). If that fails, try the older version.

• Build: v1.18
  • File Name: Lyf_Water_7_LS-5504_1.18_5.1.1.zip
  • Size: 1.02GB
  • 🔗 Download Link: Download (MediaFire)
• Build: v1.14
  • File Name: Lyf_Water_7_LS_5504_V1.14.zip
  • Size: 891MB
  • 🔗 Download Link: Download (MediaFire)

Why Flash This Specific Firmware?

A complete firmware reinstallation is the most effective way to resolve common software issues with the Lyf Water 7:

• Fix Bootloop and Logo Hang: If the phone is stuck at the startup logo or continuously restarts, flashing the stock ROM is the primary solution to fix the corrupted boot files.
• Resolve Performance Issues: A fresh install of Android 5.1 can eliminate lag, app crashes, and random freezes that develop over time due to software clutter or problematic apps.
• Unbrick a Soft-Bricked Device: For a phone that has become unresponsive after a failed root attempt or custom ROM installation, forcing a flash in EDL mode is often the only way to restore it.
• Remove FRP Lock: Flashing the stock firmware is a necessary step in many guides for removing a Google Factory Reset Protection (FRP) lock if you are locked out of your device.
• Return to Stock from a Custom ROM: While custom ROMs like CyanogenMod 12.1 exist for this device, they often have bugs related to mobile data or other hardware. Returning to the official firmware ensures all hardware, including the fingerprint sensor, functions correctly.

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 QPST package, which includes the QFIL tool.
• The correct Qualcomm HS-USB QDLoader 9008 drivers installed on your PC.

How to Flash the Firmware

This firmware must be installed using the QFIL (Qualcomm Flash Image Loader) tool on a Windows computer. The process involves booting the phone into a special diagnostic mode known as EDL (Emergency Download) Mode.

1. Download and extract the firmware zip file (e.g., Lyf_Water_7_LS-5504_1.18_5.1.1.zip) to a new folder on your PC.
2. Install the Qualcomm USB drivers and the latest QPST/QFIL tool.
3. Launch QFIL from the QPST installation directory.
4. Completely power off your Lyf Water 7.
5. Boot the phone into EDL Mode. This is typically done by holding both the Volume Up and Volume Down buttons simultaneously and then connecting the phone to the PC with a USB cable. The screen will remain black, but your PC should detect a “Qualcomm HS-USB QDLoader 9008” device.
6. In QFIL, select “Flat Build” under “Select Build Type.”
7. Click “Browse” next to the “Select Programmer” field and navigate to the firmware folder to select the prog_emmc_firehose_...mbn file.
8. Click “Load XML” and select the rawprogram_unsparse.xml file, followed by the patch0.xml file when the next window pops up.
9. Click the “Download” button in QFIL to begin the flashing process.

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

→ How to Install ROM with Qualcomm Flash Image Loader (QFIL)

Disclaimer: Flashing a Qualcomm 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.