Last Updated: March 18, 2025
Fix your phone with the official Infinix S5 Pro X660B firmware. Our guide includes Latest USB Driver, Flash Tool and Infinix S5 Pro X660B flash file to solve any issues.
Infinix S5 Pro X660B Firmware (Flash File) – Drivers, Tools & Guide
We have provided the original firmware for your Infinix S5 Pro X660B smartphone, along with the necessary SP Flash Tool and MediaTek USB drivers for flashing. The files are compressed in a zip format, which you can extract using WinRAR or 7-Zip software on your computer. Verify that the extracted firmware package includes a scatter file required for the flashing process.
Before flashing your smartphone, ensure that the downloaded zip files are not corrupted and match your specific S5 Pro X660B. You’ll need a Windows computer and a working USB cable to connect your smartphone to your computer. Also, scan your computer for malware before initiating the flashing process. Refer to our provided How to Flash guide for easy flashing instructions.
Updating the stock firmware on your S5 Pro can fix various software issues, such as FRP lock, app-related problems, slow performance, forgotten pattern lock, dead or stuck-on Infinix logo issues, Wi-Fi and Bluetooth connectivity problems, battery draining issues, or soft brick problems.
FRP Bypass Tools for Your Infinix S5 Pro X660B
After flashing or performing a factory reset, you might encounter a Google account lock (FRP). If this happens, our free FRP bypass tools are available to help you regain full access to your phone quickly and securely.
Why Do We Need Infinix S5 Pro X660B Firmware?
The firmware is important because it helps improve your phone’s performance and fix common issues. It can:
- Unlock your device.
- Update your phone to the latest Android system.
- Fix problems like startup loops, lagging, and freezing.
- Resolve issues with OTA updates and battery drain.
- Restore the original software (stock ROM) to keep your warranty valid.
- Help if your phone only boots into recovery mode.
This simple update makes your device work better and more reliably, learn more about stock rom.
Choosing the Right Firmware Version
Before you begin the flashing process, ensure you follow these steps to select the correct firmware:
- Identify Your Device Model: Verify in “About Phone” that your model is Infinix S5 Pro X660B.
- Verify the Build Number: Check for identifiers like “X660B” in your device build details.
- Confirm the Chipset: According to the official Infinix specifications, S5 Pro X660B is powered by Mediatek MT6765 Helio P35 (12 nm)
- Match the Firmware Version: Ensure that the firmware version and regional details match your device’s specifications to avoid compatibility issues.
- If you’re unsure about your chipset and firmware version, you can restart your device in recovery mode to check additional device details.
This way, you’ll know what firmware to flash and which version works best to avoid any risks.
Firmware Details for Infinix S5 Pro X660B
Below is a quick reference for the official firmware:
| Firmware Information | Details |
|---|---|
| Device Model | Infinix S5 Pro X660B |
| Firmware Version | V537, V546. |
| File Size | 2.3 GB – 2.35 GB |
| Android Version | Android 10 |
| Platform | Mediatek MT6765 Helio P35 (12 nm) |
| Release Date | Released 2020, March 13 |
| Region | Global, Africa and Asia |
| File Type | ZIP (Includes Scatter File, Preloader.bin, boot.img, etc.) |
Download Infinix S5 Pro X660B Firmware
Download the official stock firmware for your Infinix S5 Pro X660B using the links provided below:
| Software Details | Download Link | Members Link |
|---|---|---|
| File Name: Infinix_S5_Pro_X660B_MT6765_V546_20201216.zip File Size: 2.3 GB | Download Link | Download Link2 |
| File Name: Infinix_S5_Pro_X660B-H653DE-Q-OP-201216V546.zip File Size: 2.35 GB | Download Link2 |
| File Name: Infinix+S5+Pro+(X660B-H653DE-Q-OP-200623V537.zip File Size: 2.29 GB | Download Link | Download Link2 |
Ensure that the firmware version you select is fully compatible with your device model and regional specifications.
Prerequisites
Before you begin the flashing process, make sure you have the following:
- Backup IMEI Numbers: Note down and save your Infinix S5 Pro X660B device’s IMEI numbers before flashing.
- Remove Google Accounts: Log out of all Google accounts from your phone to avoid FRP lock problems after flashing.
- Backup Data: Remember to create a backup of all your important data, including accounts, music, videos, and photos, as flashing will erase all content on your device.
- A Fully Charged Device: Ensure your phone has at least 50% battery.
- USB Cable & PC: Use a reliable USB cable and a computer with available USB ports.
- Necessary Drivers: Download and install Require File
Download Link
Infinix Flash tool
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Infinix S5 Pro X660B Mediatek Vcom USB Driver
Download Now
Windows 7-11 MTK VCOM USB Preloader Drivers
Download Now
ADB USB Driver for Infinix S5 Pro X660B
Download Now
How to Install Stock Firmware on Infinix S5 Pro X660B
Follow these steps to flash and restore Infinix S5 Pro X660B to factory state:
- 1: Download and Extract Firmware Files
- Download the firmware package from one of the mirror links provided.
- Extract the files on your computer; you should see the firmware, USB drivers, Infinix Flash Tool, and a manual.
- 2: Install USB Drivers
- Open the driver folder within the firmware package.
- Follow the on-screen instructions to install the drivers, allowing your computer to recognize the Infinix S5 Pro X660B
- After installation, restart your PC to ensure the drivers load correctly.
- 3: Launch Infinix Flash Tool
Open the Infinix Flash Tool folder and run the application as Administrator.
In the tool, click “Brower” This file provides instructions for the flash tool on where to write each part of the ROM.
locate scatter file from the extracted firmware folder.
- 4: Start the Flashing Process
Get the device powered off and be ready to connect it to your computer via a USB cable.
In infinix Flash Tool, click on the “Start” button and connect the phone to initiate the flashing process.
Wait for the process to complete. This can take several minutes, so be patient.
A green checkmark will appear at the end when the flashing process is successful.
- 5: Reboot and Set Up
- Disconnect your Infinix S5 Pro X660B and turn it on. The initial boot after flashing may take longer than usual.
- Follow the setup prompts to configure your device, as it has been restored to factory settings.
Missing IMEI or Corrupt Baseband After Flashing?
If you encounter a missing IMEI or a corrupt baseband after flashing, follow these steps:
- Install the Correct Drivers: Ensure you have the appropriate MediaTek (MTK) drivers installed.
- Use an IMEI Repair Tool: Tools such as SN Write Tool or Maui Meta for MediaTek can help restore your original IMEI Learn more about Write Tool or Maui Meta.
- Run the Repair Tool:
- Connect your device to your computer.
- Enter your original IMEI numbers for both SIM slots.
- Click “Start” to initiate the repair process.
- Restart Your Device: Once completed, reboot your phone and verify your IMEI by dialing *#06#.
Common Issues and Solutions
- Device Not Recognized by PC:
- Ensure all required drivers are correctly installed.
- Try using a different USB cable or port.
- Boot Loop After Flashing:
- Boot into recovery mode and perform a factory reset if your device remains in a boot loop.
- Flashing Errors:
- Double-check that you have selected the correct scatter file and firmware version for your device model.
Frequently Asked Questions (FAQs)
Q1: Will flashing the firmware erase my data?
A: Yes, flashing the firmware will restore your device to its factory settings. Please back up your data beforehand.
Q2: Is this firmware compatible with other Infinix models?
A: No, this firmware is specifically designed for the Infinix S5 Pro X660B. Using it on other models may lead to serious issues.
Q3: Can I downgrade my firmware version?
A: Downgrading is not recommended due to potential security risks and compatibility issues.
Q4: What should I do if I encounter an FRP lock after flashing?
A: Use our FRP bypass tools to resolve any Google account lock issues quickly.
Q5: Are custom ROM options available for the Infinix S5 Pro X660B?
A: This guide focuses on the official stock firmware. please refer to our Custom ROMs page or other trusted tech forums like XDA Forums, or Beebom.
Conclusion
Flashing Infinix S5 Pro X660B Firmware is an effective way to restore your device to its original state, solving common software issues, improving performance, and unbricking a soft-bricked device. With this guide and the provided files, you can complete the process safely and efficiently. Just remember to follow each step carefully and ensure you have the correct model and firmware version.
Restoring your Infinix S5 Pro X660B with its official firmware keeps it secure and stable, allowing you to enjoy the optimal performance Infinix intended. If you encounter any issues, consult the user guide included in the firmware package or join community forums for additional support.
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