Nubia N1 Lite (NX597J) Stock Firmware | (Android 6.0) Flash File

The Nubia N1 Lite (model NX597J) is a budget-friendly phablet from 2017 that offered a large 5.5-inch display and a rear-mounted fingerprint scanner. For users of this device, flashing the official stock firmware is the best way to resolve persistent software issues like a non-responsive fingerprint scanner, system crashes, and delayed notifications.

Important Note: This device is powered by a MediaTek MT6737 chipset. The restoration process requires the use of SP Flash Tool. This guide will help you restore the original Android 6.0 Marshmallow software.

Quick Device Specs

Device: Nubia N1 Lite (NX597J)
Release year: 2017
Chipset: MediaTek MT6737
Display: 5.5″ HD IPS LCD (1280×720)
Battery: 3000 mAh (Non-removable)
Memory: 1GB/2GB RAM + 16GB storage
Camera: 8MP rear, 5MP front
OS: Android 6.0 (Marshmallow)
Special Feature: Rear-mounted fingerprint scanner

Required Downloads

File / Tool	Download Link
SP Flash Tool	Download Tool
MediaTek USB VCOM Drivers	Download Drivers

Stock ROM & Firmware

Version	Android	Region	Type	Download	Size
(2017-02-27)	6.0 (Marshmallow)	Global	SP Flash Tool	Download	~1.3 GB

Quick Flashing Guide

Download and install the MediaTek VCOM drivers and the SP Flash Tool on your computer.
Extract the downloaded firmware ZIP file to find the `MT6737M_Android_scatter.txt` file.
Launch SP Flash Tool, load the scatter file, and ensure the flashing mode is set to “Download Only.”
Power off your phone, click the “Download” button in the tool, and then connect the phone to your PC via USB to begin.

For a complete, step-by-step tutorial with screenshots, please refer to our definitive guide:
How to Flash Stock Firmware on MediaTek (MTK) Smartphones

FAQs

Q1. My fingerprint scanner has stopped working. Will a firmware flash fix it?

Yes, this is the most common reason to flash firmware on the Nubia N1 Lite. The fingerprint scanner failing is a widely reported software bug. A full firmware flash with SP Flash Tool is the most reliable way to restore its functionality. After flashing, you will need to re-register your fingerprints in `Settings > Fingerprint`.

Q2. Why are my WhatsApp notifications delayed?

This is a known issue with Nubia UI’s aggressive battery-saving features. A clean firmware flash can help, but you will likely still need to manually go to `Settings > Battery > Power management` and exclude your important messaging apps from any battery optimization or background-kill lists to ensure you receive notifications instantly.

Q3. Is this the same as the standard Nubia N1?

No. The N1 Lite is a lower-spec model with an MT6737 chipset. The standard Nubia N1 is a more powerful device with a Helio P10 chipset and a much larger 5000 mAh battery. Their firmwares are not interchangeable.

Device-Specific Troubleshooting

“System UI has stopped” or Frequent Freezing: This indicates a corrupted operating system or lack of available RAM. Flashing the stock ROM using the SP Flash Tool guide is the most reliable way to fix this. It will wipe all data but installs a fresh, stable copy of Android. After flashing, limit the number of apps you install to maintain performance.
Poor Battery Life: A clean flash can resolve software bugs causing abnormal battery drain. After flashing, monitor usage in `Settings > Battery`. The 3000 mAh battery provides average endurance, so disabling unused pre-installed apps and reducing screen brightness is recommended for better performance.
Overheating, Especially When Charging: A clean firmware flash removes junk processes that could be causing extra CPU load and heat. However, the phone can still get warm. To manage this, avoid using the phone for intensive tasks while it is charging and ensure you are using a quality charger.
“Invalid IMEI” after Flashing: This critical error occurs if you use the “Format All + Download” option in SP Flash Tool. It erases the phone’s unique identifier. To prevent this, always use the “Download Only” mode. Restoring a lost IMEI is a very complex process.