LYF Water F1S LS-5201 Firmware Flash File Download [Stock Rom]

The LYF Water F1S (LS-5201) was a powerful mid-range smartphone from late 2016, featuring a capable Qualcomm Snapdragon 652 octa-core processor, a healthy 3GB of RAM, and a crisp 5.2-inch Full HD display running Android 6.0.1 Marshmallow. While its hardware was well-equipped for a smooth experience, the device was often held back by unoptimized software. Users reported issues such as unexpected system lag and stuttering, random reboots, and camera instability—problems that point directly to firmware bugs rather than hardware limitations. Another common issue for aging devices like this is getting stuck in a bootloop, which can be caused by software corruption. For owners facing these frustrating performance and stability problems, reinstalling the latest official firmware is the most direct way to resolve software-based bugs and restore the phone to its peak operating condition.

This guide provides two official stock ROM packages for the LYF Water F1S. It is a Qualcomm device and must be flashed using the QFIL tool.

LYF Water F1S (LS-5201) Firmware Details

Below are the key specifications for the LYF Water F1S. This firmware will restore the device to its Android 6.0.1 Marshmallow software. Note that this is a Qualcomm device and requires QFIL, not SP Flash Tool.

Why Flash the Stock Firmware on Your LYF Water F1S?

A full firmware reinstallation is the best strategy to address the specific software flaws of this phone:

• Eliminate Unexpected Lag and Stutter: A phone with a Snapdragon 652 processor and 3GB of RAM should not feel slow. To fix performance bottlenecks, a clean installation of the 170124 firmware clears out software conflicts and restores the system’s original fluidity.
• Fix Startup Bootloops and Random Reboots: If your phone is stuck restarting or reboots on its own, flashing the S10A_L13EN_200_170124 build is the essential first step to rule out software corruption before suspecting a hardware issue like a failing battery.
• Resolve Camera Instability: For a camera app that is slow, freezes, or crashes, reinstalling the complete Android 6.0.1 OS package restores the original, optimized camera drivers and application, which can fix these bugs.
• Stabilize Wireless Connections: If you are experiencing frequent Wi-Fi or Bluetooth drops, flashing the firmware will reinstall the radio drivers included in the 170124 package, which can solve persistent connectivity problems.
• Recover from a Failed Update or Root Attempt: If a failed software modification has left the phone bricked or unresponsive, flashing the official stock ROM via QFIL is the primary method to restore it to working condition.

⚠️ Important Prerequisites

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.

Download Official Firmware for LYF Water F1S (LS-5201)

Two firmware versions are available. The build from January 2017 is the latest release and is recommended as it likely contains important bug fixes and stability improvements.

• Build: S10A_L13EN_200_170124 (Latest & Recommended)
  • File Name: LYF_Water_F1S_LS-5201_S10A_L13EN_200_170124.zip
  • Size: 1.77GB
  • 🔗 Download Link: Download (MediaFire)
• Build: S10A_L13EN_200_161209 (Older Version)
  • File Name: LYF_Water_F1S_LS-5201_S10A_L13EN_200_161209.zip
  • Size: 1.77GB
  • 🔗 Download Link: Download (MediaFire)

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 your chosen firmware .zip file to a new folder.
2. Install the Qualcomm USB drivers and the latest QPST/QFIL tool on your computer.
3. Launch QFIL.
4. Completely power off your LYF Water F1S.
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” and then click “Browse” to navigate to the extracted firmware folder and select the prog_emmc_firehose_...mbn file.
7. Click “Load XML” and select the rawprogram_unsparse.xml file, followed by the patch0.xml file.
8. Click the “Download” button in QFIL to begin the flashing process.

For a complete, step-by-step tutorial with screenshots, please follow a dedicated QFIL flashing guide.

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.