Xiaomi Redmi Y1 Lite / Redmi S2 Firmware Flash File Download [Stock ROM]

The Xiaomi Redmi Y1 Lite / Redmi S2 (codename ugglite) was an entry-level smartphone from 2018, designed as a budget-friendly selfie-focused device. Marketed as Redmi Y1 Lite in India and Redmi S2 in other regions, it offered a large front-facing camera at an affordable price point.

This page provides the official Global Fastboot ROM and an alternative firmware package for this entry-level device.

⚠️ Critical Warning: This is an older device running Android 7.1 Nougat. Always confirm your device codename is ugglite before flashing. Using firmware for a different model will permanently brick your device.

Quick Device Specs

• Device: Redmi Y1 Lite / Redmi S2
• Chipset: Qualcomm Snapdragon 425
• Display: 5.99″ HD+ IPS LCD
• Camera: 16MP front camera, 12MP rear
• Original OS: Android 7.1 Nougat, MIUI 9
• Final Official OS: Android 7.1 Nougat, MIUI 11

Required Tools & Drivers

Firmware & ROMs

FAQs (Firmware)

Q1. What is the difference between ugglite andugg? The ugglite (Redmi Y1 Lite/Redmi S2) features a Snapdragon 425 chipset and different camera configuration, while the ugg (Redmi Y1/Redmi Note 5A Prime) has a Snapdragon 435 and slightly different hardware. Their firmware is not compatible.
Q2. Why is this device still on Android 7.1 Nougat?
As an entry-level device from 2018, the Redmi Y1 Lite/Redmi S2 received only MIUI version updates but no Android version upgrades. It reached its end-of-life with MIUI 11 on Android 7.1 Nougat.

Q3. Is there a custom ROM available for this device?
Due to its age and entry-level specifications, development for custom ROMs is very limited. Some Android Go-based custom ROMs might be available on XDA-Developers forums, but official support ended years ago.

Next Steps

📥 You’ve now got the official ROM files and required tools. 👉 For a step‑by‑step flashing and troubleshooting guide, read our full Redmi Y1 Lite / S2 Flashing/Unbrick Tutorial.