How to Manually Install XOS 15 Android 15 on Infinix Phones

Android 15 in XOS 15 isn’t just another skin refresh—it’s the update that makes your phone feel fresher, faster, and smarter.

If your phone hasn’t received the official Infinix XOS 15 update yet, or you are eager to try out all the latest features that come with the new Android release, this guide will put you through how to manually install XOS 15 on supported Infinix smartphones.

Table of Contents

Requirements For Manual XOS 15 Update
Steps to Manually Install XOS 15 on Infinix Smartphones
Quick Tip:

Requirements For Manual XOS 15 Update

A supported Android 15 Infinix device
A Windows PC or laptop
USB cable
An XOS 15/Android 15 ROM for your device
SP Flash Tool or XFlash Tool
ADB & Fastbook drivers
Your phone battery should be over 50%

NOTE: Manual installation can void your warranty or brick your Infinix phone when done wrongly. Ensure to backup your data before you proceed and follow the instructions correctly.

10 Fixes to Overheating and Battery Drain After XOS 15 Android 15 Update

Steps to Manually Install XOS 15 on Infinix Smartphones

Before we proceed, ensure that your smartphone is eligible for the Android 15 update via the link. Once you are done, follow the procedures below:

1. Download the Correct Firmware

Download the exact official Android 15 firmware or XOS 15 ROM for your Infinix model from a trusted site. (Links coming)
Cross-check the model number and make sure that it matches.
The file format will be in .zip or .tgz

2. Install Drivers and Tools

Download and install ADB and Fastboot drivers on your PC.
Also, download and install SP Flash Tool or XFlash Tool.
Extract the firmware file to a folder.

3. Enable USB Debugging

From your Infinix phone, go to Settings
Click on My Phone and then Version Info
Now tap on ‘Build Number‘ several times to unlock Developer Options.
Return back in Settings, locate System and then scroll down to Developer Options
Enable Use Developer Option, scroll down and enable USB Debugging

4. Flash the Firmware

Connect your phone to the PC via USB
Open SP Flash or XFlash Tool
Load the scatter file in the extracted firmware folder
Choose Download Only mode.
Click Download and then connect your phone in power-off mode.
The flashing process will take a while (green checkmark will appear)

5. Reboot and Set Up

Disconnect your phone and then power it on.
The first boot might take 5-10 minutes.
Proceed with the XOS 15 setup wizard

Quick Tip:

Go to the Google Play Store and update all apps on your phone to enable them operate smoothly
Go to your phone Settings and turn on backup & restore feature
In case you notice bugs or any form of sluggishness, do a Factory Reset.

Troubleshooting Errors in XOS 15 Manual Installation

Issue	Fix
Phone stuck at boot logo	Reboot to Recovery > Factory Reset
Flash tool shows an error	Recheck drivers or use another USB port
“Download DA Fail” error	Use the correct DA file in SP Flash Tool

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