The Xiaomi Redmi Y1 Lite, also sold globally as the Redmi Note 5A Lite (codename ugglite), was launched in 2017 as the ultra-affordable entry point into Xiaomi’s large-screen smartphone lineup. It offered a solid set of fundamentals, including a spacious 5.5-inch display, the reliable Qualcomm Snapdragon 425 chipset, and a dedicated microSD card slot for storage expansion. It was designed to be a dependable daily driver for first-time smartphone users or those on a strict budget. This page provides the official fastboot ROMs for China and Global, along with the popular Xiaomi.eu custom ROM, to help you unbrick, restore, or perform a clean installation on your device.
Important: You must verify your device is the “Lite” version (ugglite). This firmware is not compatible with the higher-tier Redmi Y1 / Note 5A Prime (ugg), which has a different processor and a fingerprint scanner. Flashing the wrong firmware will hard brick your phone.
Quick Device Specs
- Device: Xiaomi Redmi Y1 Lite / Note 5A Lite (ugglite)
- Release year: 2017
- Chipset: Qualcomm Snapdragon 425
- Display: 5.5″ IPS LCD, HD
- Battery: 3080 mAh
- Original MIUI: Android 7.1.2 (Nougat), MIUI 9
- Key Differentiators: No fingerprint scanner, Snapdragon 425 (vs. 435 on Prime)
Required Downloads
These are the essential tools needed for flashing the official fastboot ROMs. Please download and install them on your Windows PC.
| File / Tool | Download Link |
|---|---|
| Xiaomi Mi Flash Tool | Download Latest Version |
| Xiaomi USB Drivers | Included with Mi Flash Tool |
| Bootloader Unlock Tool | Official Mi Unlock Page |
Note: To install the Xiaomi.eu custom ROM, you will also need a custom recovery like TWRP for ugglite, which must be downloaded separately and flashed via fastboot.
Official & Custom ROMs
| Region | Build | Android | Release Date | Download | Codename |
|---|---|---|---|---|---|
| China | V11.0.2.0.NDFCNXM | 7.1 | 2019-10-18 | Download | ugglite |
| Global | V11.0.3.0.NDFMIXM | 7.1 | 2019-10-22 | Download | ugglite |
| Xiaomi.eu (Custom) | V10.3.2.0.NDFCNXM (Based) | 7.1 | — | Download | ugglite |
Flashing Guides
1. How to Flash Official Fastboot ROM (.tgz)
This method is for restoring the official stock firmware and is the best way to unbrick your device.
- Backup your data: This process will erase everything on your phone.
- Extract the ROM: Download the official .tgz firmware file and extract it twice using a tool like 7-Zip until you have a folder containing flash_all.bat and an images subfolder.
- Enter Fastboot Mode: Power off your phone completely. Then, press and hold the Volume Down + Power buttons until the fastboot logo appears.
- Connect to PC: Connect your phone to your computer with a reliable USB cable.
- Launch Mi Flash Tool: Open the Mi Flash Tool application as an administrator.
- Select ROM and Flash: Click “select” and navigate to the extracted ROM folder. At the bottom right, choose the “clean all” option. Click “refresh” to see your device, then click “flash” to begin.
2. How to Flash Xiaomi.eu Custom ROM (.zip)
This is an advanced method for experienced users who have an unlocked bootloader.
- Unlock Bootloader: Your phone’s bootloader must be unlocked using the official Mi Unlock Tool.
- Flash Custom Recovery: You need to flash a custom recovery like TWRP for ugglite first. This is done via fastboot mode.
- Boot into TWRP: Restart your phone into the TWRP recovery environment.
- Wipe Data: In TWRP, it is crucial to perform a factory reset or format data to prepare for the new ROM.
- Install the ROM: Transfer the downloaded Xiaomi.eu .zip file to your phone, then use the “Install” function in TWRP to flash it.
FAQs
Q1. What is the main difference between the Y1 Lite (ugglite) and the Y1 Prime (ugg)?
The Prime (ugg) version is the superior model, featuring a fingerprint scanner, a better Snapdragon 435 processor, and a 16MP front camera with a flash. The Lite (ugglite) version lacks these features to achieve a lower price point.
Q2. Why is this phone called both Redmi Y1 Lite and Redmi Note 5A Lite?
They are the same phone. “Redmi Y1 Lite” was the marketing name used in India to target the youth market. “Redmi Note 5A Lite” (or just Note 5A) was the name used for the global and Chinese markets.
Q3. What was the final official update for this device?
The Redmi Y1 Lite / Note 5A Lite launched with Android 7.1 Nougat and did not receive any major Android version upgrades. It did, however, receive MIUI skin updates up to MIUI 11, which are the builds provided on this page.
Q4. Why does the Xiaomi.eu ROM require a custom recovery?
Xiaomi.eu ROMs are distributed as .zip files, which are designed to be “recovery-flashable.” The phone’s basic stock recovery cannot install them. A powerful custom recovery like TWRP is needed to perform the installation.
Troubleshooting
- Pre-flashing Checklist:
- Have you backed up all important data from your phone?
- Is your phone’s battery charged to at least 50%?
- Have you installed the correct Xiaomi USB drivers on your PC?
- Are you absolutely sure you downloaded the correct firmware for ugglite and not another model?
- Common Flashing Errors:
- “error: not catch checkpoint” or “Flash system error” → This almost always means you have selected the wrong folder in Mi Flash Tool. Make sure you have selected the main folder that contains the images sub-folder, not the sub-folder itself.
- Device is not detected in Fastboot → Ensure drivers are correctly installed. Try a different USB port (preferably a USB 2.0 port on the back of a desktop PC) and a high-quality data cable. Run Mi Flash Tool as an administrator.
