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
| File / Tool | Download Link |
|---|---|
| Xiaomi Mi Flash Tool | Latest Version |
| Xiaomi USB Drivers | Separate Driver Pack |
| Bootloader Unlock Tool | Official Unlock Page |
Firmware & ROMs
| Type | Region / Variant | Version (Build) | Android | Download |
|---|---|---|---|---|
| Fastboot ROM (Stock) | Global | V11.0.3.0.NDFMIXM | 7.1 Nougat | Official Link |
| Alternative ROM | Global (Older) | V10.3.1.0.NDFMIXM | 7.1 Nougat | Archive Link |
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.
