The LYF Jio F300B, popularly known as the Jio Phone 2, is a 4G-enabled feature phone running KaiOS. It is powered by a Qualcomm processor and features a full QWERTY keyboard, making it a popular choice for users who prefer a physical typing experience. Despite its simplicity, the device is prone to several software issues. Users frequently report the phone getting stuck on the Jio logo during startup, falling into a bootloop, or becoming unresponsive after a software glitch.
A complete firmware reinstallation is the most reliable method for fixing these problems. This guide provides the official stock ROM for the Jio F300B. It is important to note that this device uses a specific flashing utility called QFlash Tool, which is different from the more common QFIL tool used for other Lyf Android smartphones.
LYF Jio F300B (Jio Phone 2) Firmware Details
Below are the specifications for the Jio Phone 2. This firmware package will restore the device to its original KaiOS software state. Flashing must be performed using the QFlash Tool.
| Attribute | Details |
|---|---|
| 📱 Device | LYF Jio F300B (Jio Phone 2) |
| 🆔 Chipset | Qualcomm Snapdragon 205 (MSM8905) |
| 🤖 OS | KaiOS |
| âś… Build Version | 001-01-42_041219 |
| đź“‚ File Type | QFlash Tool Firmware |
| đź’» Flashing Tool | QFlash Tool |
Download Official Firmware for LYF Jio F300B
- Build: 001-01-42_041219
- File Name: LYF_F300B_001-01-42_041219_QFT.zip
- Size: 716MB
- đź”— Download Link: Download (Google Drive)
Why Flash This Specific Firmware?
Reinstalling the stock KaiOS firmware can resolve the most common and critical software issues with the Jio Phone 2:
- Fix “Hang on Logo” Issue: This is the most reported problem. Flashing the stock ROM will fix the issue where the phone freezes at the Jio startup screen.
- Resolve Bootloops: If your device is constantly restarting and never fully booting up, a full firmware flash will restore the necessary system files.
- Unbrick a Dead Device: For a phone that is completely unresponsive due to a software error, flashing the firmware in EDL mode is the standard recovery procedure.
- Fix Software Errors and Sluggishness: A clean OS installation can fix various software bugs, lags, and freezes, restoring the phone to its original performance level.
- Remove PIN or Password Lock: If you are locked out of your device, a full flash will reset all security and user data, granting you access again.
Crucial Prerequisites Before Flashing
This process will permanently delete all user data on the phone, including contacts and messages.
- The latest version of the QFlash Tool.
- The correct Qualcomm HS-USB QDLoader 9008 drivers installed on your Windows PC.
How to Flash the Firmware
This Jio feature phone must be flashed using the QFlash Tool. The process involves booting the phone into EDL mode, which for this model has a specific boot key combination.
- Download and extract the firmware file (
LYF_F300B_001-01-42_041219_QFT.zip) to your computer. - Install the Qualcomm Drivers and the QFlash Tool.
- Launch QFlash Tool and click “Load Content” to select the
contents.xmlfile from the firmware folder. - Power off the phone. Press and hold the * and # keys together, then connect it to the PC to enter EDL Mode.
- Click “Download Content” in QFlash Tool to begin the flashing process.
For a complete, step-by-step tutorial with screenshots, you will need to create and link a new master guide for the QFlash Tool. The placeholder is below:
→ How to Flash Firmware with QFlash Tool
Disclaimer: Flashing firmware will erase all your data and carries a risk of damaging your device if not done correctly. We are not responsible for any data loss or hardware failures. Proceed with caution.
