Last Updated: July 31, 2026
Use the official Infinix S4 X626B firmware to restore your device. This page contains everything needed to fix software problems: the flash files, drivers, and step-by-step instructions. You will find guides for FRP bypass, hard reset, and IMEI repair all in one place.
Device: Infinix S4 X626B | Chipset: MediaTek MT6762 Helio P22 | Flash Tool: SP Flash Tool
Android: Android 9.0 Pie | File Type: ZIP (Includes Scatter File [MT6xxx_Android_scatter.txt], preloader.bin, boot.img, system.img, recovery.img, lk.bin, logo.bin, nvram.img, and more)
⚠ Warning: Flashing erases all data. Back up first.
Device: Infinix S4 X626B (MediaTek MT6762 Helio P22)
Flash Tool: SP Flash Tool
Latest Build: V323
Firmware Files: 13 available
What You Need: Windows PC, USB data cable, SP Flash Tool, USB drivers
Time Required: 10-20 minutes (plus 3-8 min first boot)
Infinix S4 X626B Firmware (Flash File) Drivers, Tools & Guide
I handle Infinix repairs regularly, and the Infinix S4 X626B comes through the door often. Most of these units come in with FRP locks, bootloops, or stuck on the Infinix logo. This guide covers those specific issues. I have gathered the firmware, the tools, and the exact process I use for these devices in one place.
A small but critical detail: extract the firmware to a simple folder path, like C:FirmwareX626B. SP Flash Tool can struggle to locate the scatter file if the folder path contains spaces or special characters. This small step prevents a frustrating few minutes of troubleshooting.
The Infinix S4 X626B launched in 2019, so driver compatibility on newer Windows versions (10/11) usually requires manual installation rather than plug-and-play. The stock firmware runs on Android 9.0 Pie, which sets the default apps and security features. The Infinix S4 X626B uses a MediaTek MT6762 Helio P22 chipset, so you must use SP Flash Tool and VCOM/MTK drivers for the flash. These are listed in the prerequisites below.
We verified the firmware file integrity across three independent sources to ensure these are authentic, unmodified stock ROMs. As a Transsion Holdings brand, Infinix devices share similar chipset architectures and flashing procedures across the S4 lineup.
Your Infinix S4 X626B firmware comes as a compressed ZIP file. Download and extract it using WinRAR or 7-Zip. Open the folder after extraction and confirm the scatter file is present before proceeding.
Be aware that flashing overwrites the entire software partition. Your data, apps, and accounts will be removed. This full wipe is how the flash resolves deep software issues, anything from FRP locks and boot failures to Wi-Fi problems and app crashes.
Infinix S4 X626B FRP Bypass
The fastest way to bypass FRP on Infinix S4 X626B is to use a free Android apps launcher that lets you access settings during the setup wizard. After flashing or performing a factory reset you may see a Google account lock (FRP). Our free Android apps launcher is the fastest way to get past it. This is also why I always recommend removing your Google account before flashing, it avoids this problem entirely.
Hard Reset Infinix S4 X626B
To factory reset Infinix S4 X626B without a computer, power off the device completely, then hold Volume Up and Power at the same time until the recovery menu appears. Use the volume keys to navigate to “Wipe Data/Factory Reset” and confirm with the Power button.
A hard reset erases all data and restores Infinix S4 X626B to its original factory state. This fixes most software problems, slow performance, app crashes, forgotten screen locks, and bootloops. If the issue persists after a factory reset, a full firmware flash using SP Flash Tool is covered in the following sections.
Verify Your Infinix S4 X626B Model Before Downloading
The single biggest mistake I see people make is flashing firmware meant for a different variant. Before downloading anything, verify your exact device identity:
- Verify Your Exact Model: In Settings, look for the model code “X626B”. Some Infinix phones share the same marketing name but have different internal hardware.
- Confirm the Processor: This build targets the MediaTek MT6762 Helio P22 chipset. You can check your chipset via recovery mode or a hardware info app.
- Review the Version Number: The firmware version in the download table should be close to or newer than what your device is currently running.
- Use Recovery Mode as a Safety Check: Before flashing, boot into recovery to see the current build number and chipset printed on screen. This is the most trustworthy check.
- Verify the Region: Some firmware builds are region-specific. Confirm the download matches your device region or is listed as global.
Why Do We Need Infinix S4 X626B Firmware?
The Infinix S4 X626B uses a MediaTek chipset, and SP Flash Tool is the standard method for firmware recovery on MTK devices. Here is what flashing the stock firmware can help with:
- Restore the original Infinix stock ROM to keep your warranty valid.
- Repair a phone that shuts down randomly or restarts in a loop.
- Resolve touchscreen responsiveness issues caused by a corrupted system build.
- Unlock your device if it has been locked or disabled.
- Fix Wi-Fi, Bluetooth, or mobile data connectivity that stopped working after an update.
- Resolve OTA update failures and battery drain issues.
- Recover from “Download DA FAIL” errors and Secure Boot authentication issues specific to the MediaTek chipset in your device.
Learn more about stock ROMs and why flashing works.
Firmware Details for Infinix S4 X626B
Here is a quick overview of the official firmware specifications:
| Firmware Information | Details |
|---|---|
| Device Model | Infinix S4 X626B |
| Firmware Version | V8, V323, V319, V311, V305, V299, V295, V287, V280, V248, V226 |
| File Size | 2 GB to 2.19 GB |
| Android Version | Android 9.0 Pie |
| Platform | MediaTek MT6762 Helio P22 |
| Release Date | Released 2019, April |
| Region | Global, Africa and Asia |
| File Type | ZIP (Includes Scatter File [MT6xxx_Android_scatter.txt], preloader.bin, boot.img, system.img, recovery.img, lk.bin, logo.bin, nvram.img, and more) |
Which Firmware Version Should I Download?
This is the question I get asked most often in the comments, so I put together a simple guide. Find your situation in the table and go straight to the right file:
| Your Situation | What I Recommend |
|---|---|
| Phone is completely dead or stuck on logo | V323, download this one. It is the latest Infinix S4 X626B firmware available. |
| FRP / Google account lock only | See the FRP bypass guide above, you likely do not need the full firmware for this. |
| Phone slow after a recent OTA update | Try V319, sometimes the latest OTA introduces new bugs and an older build runs better. |
| IMEI missing after a previous flash | Re-flash V323 first, then follow the IMEI repair guide. Do not skip the reflash. |
| V323 failed with a flash error | Try V319 instead and double-check your scatter file selection before assuming the firmware is the problem. |
| Restoring to factory / warranty repair | V323, clean state, fresh start. |
My general approach with MTK devices: always try the latest version first. I have seen people spend a lot of time trying older builds when the newest one would have worked fine. Only move to an older version if the latest fails more than once, and make sure it is a driver issue you are solving, not a firmware issue.
Download Infinix S4 X626B Firmware
Download the official stock firmware for your Infinix S4 X626B below. The latest available version is V323. After downloading, verify the file size matches the table above, a size mismatch usually means a partial or corrupt download, and flashing a corrupt file can cause more problems than it solves.
| Software Details | Download Link | Members Link |
|---|---|---|
|
File Name: Infinix_S4_X626B_MT6765_V8_190524.zip Size: 2 GB | Download Link | Download Link2 |
| File Name: INFINIX-S4-X626B-H623JKN-P-210127V323.zip Size: 2.18 GB | Download Link | Download Link2 |
| File Name: X626B-H623JKN-P-201202V319.zip Size: 2.19 GB | Download Link | Download Link2 |
| File Name: X626B-H623JKN-P-200928V311.zip Size: 2.18 GB | Download Link | Download Link2 |
| File Name: X626B-H623JKN-P-200727V305.zip Size: 2.18 GB | Download Link | Download Link2 |
| File Name: X626B-H623JKN-P-200511V299.zip Size: 2.16 GB | Download Link | Download Link2 |
| File Name: X626B-H623JKN-P-200307V295.zip Size: 2.14 GB | Download Link | Download Link2 |
| File Name: X626B-H623JKN-P-191216V287.zip Size: 2.12 GB | Download Link | Download Link2 |
| File Name: X626B-H623JKN-P-191014V280.zip Size: 2.09 GB | Download Link | Download Link2 |
| File Name: X626B-H623JKN-P-190618V248.zip Size: 2.01 GB | Download Link | Download Link2 |
| File Name: X626B-H623K-P-ID-190524V8.zip Size: 2.07 GB | Download Link | Download Link2 |
| File Name: X626B-H623JK-P-190509V226.zip Size: N/A | Download Link | Download Link2 |
| File Name: Downlowd Link Size: N/A | Download Link | Download Link2 |
Only download firmware that is fully compatible with your exact device model. See the firmware selection guide above if you are not sure.
Important: The Infinix S4 X626B (X626B) should not be confused with other S4 variants that may have different chipsets or regional firmware. Even devices in the same S4 line can use completely different processors. Always verify your exact model code “X626B” in Settings > About Phone before downloading any firmware from this page.
- Your model number is a variant of X626B with a different letter suffix. Check About Phone carefully, one letter difference can cause a failed or broken flash.
- Your chipset differs from MediaTek MT6762 Helio P22. Confirm in recovery mode before proceeding.
- You downloaded the file from a source other than this page.
- The file size differs significantly from the sizes listed in the table above, a size mismatch usually means a partial download, which will fail mid-flash.
Infinix S4 X626B Flash Setup Checklist
Do not skip this section. Most failed Infinix flashes come from rushing through the preparation steps. The VCOM driver installation is essential for the Infinix S4 X626B and other MediaTek devices. Windows may show the device in Device Manager and SP Flash Tool will still not detect it if the correct VCOM driver is not installed.
- IMEI Backup: Open the dialer and enter *#06#. Write both IMEI numbers down on paper or take a screenshot. If you ever need to repair your IMEI after flashing, these are essential.
- Remove All Google Accounts: Go to Settings, Accounts, and sign out of every Google account on the device. Leaving accounts signed in triggers FRP lock after a flash, which blocks you from setting up the phone.
- Backup Everything: Photos, contacts, messages, WhatsApp data, move it all to a computer or cloud service. The flash will restore the phone to factory state with nothing on it.
- 50% Battery Minimum: Do not start with a low battery. If power cuts out during the flash, the device can become unresponsive and much harder to fix.
- USB Cable and Computer: Use a proper data-transfer USB cable and a Windows PC. Avoid USB hubs, connect directly to the motherboard port for a stable connection.
- Download and Install Drivers:
Infinix S4 X626B Firmware Installation Guide
We are using SP Flash Tool for this. For older devices, I recommend trying SP Flash Tool v5.1924 first. The newer versions of SP Flash Tool require a DA (Download Agent) file that older firmware packages do not include, and that is what causes the “Auth” errors you may have seen. If SP Flash Tool keeps asking for an auth file and you do not have one, switch to MTK Client, it handles Secure Boot automatically. Download SP Flash Tool for Windows or SP Flash Tool for Linux and follow the steps below. The complete SP Flash Tool guide is also available if you need more detail.
- Download and Extract:
- Download the correct firmware package from the links above.
- Extract the ZIP to a simple folder path, avoid paths with spaces or special characters, as some flash tools have trouble with them.
- Install the Listed Drivers:
- Confirm all drivers listed above are installed and that your PC has been restarted since installation. Skipping the restart is a common reason drivers do not work correctly.
- Load the Firmware File:
- Click on the “Scatter-loading” button. Navigate to the folder where you extracted the firmware and select the “scatter.txt” file.
- Connect Your Device:
- Power off your phone completely, not sleep mode, fully off.
- Connect to your PC via USB cable. The flash tool will detect it automatically.
- Start Flashing:
- Click the “Download” button to begin.
- Do not disconnect, move the cable, or touch the device until the process is fully complete. Disconnecting mid-flash is how devices get bricked.
- Wait and Reboot:
- Once flashing finishes successfully, disconnect the device.
- Power on your device. The first boot will take longer than usual, give it up to 8 minutes.
Infinix S4 X626B Flashing Problems and Fixes
- Infinix S4 X626B Not Recognized by SP Flash Tool:
- In most cases this is a driver issue, not a cable issue. Reinstall the VCOM drivers for the X626B, restart your PC, and try again before changing anything else.
- If that does not work, switch to a USB 2.0 port, USB 3.0 ports can cause detection issues with MediaTek devices more often than people expect.
- Still not working? Temporarily disable your antivirus. It can block the VCOM driver from loading without giving you any error message.
- Boot Loop After Flashing:
- Enter recovery mode and perform a factory reset from there. Most post-flash bootloops on MediaTek are caused by conflicts with old cached data, a wipe from recovery usually fixes this without needing to reflash.
- Wrong Scatter File / Firmware Mismatch:
- If SP Flash Tool throws an error as soon as you try to start the download, check your scatter file first. A mismatch between the scatter file and your device build is one of the most common causes of flash errors.
- “Download DA FAIL” Error:
- This error comes up regularly. It almost always means the VCOM driver is not properly installed. Reinstall it, restart your PC, and try again. If that still does not work, try switching to SP Flash Tool v5.1924, older devices sometimes respond better to the older version.
- Error 8038 (BROM Error):
- The device is not entering BROM mode correctly. Power it off completely and, if possible, remove the battery for 30 seconds. Reconnect and try again. Some MediaTek devices require you to hold Volume Down while plugging in the USB cable to enter BROM mode.
- Auth File / Secure Boot Error in Newer SP Flash Tool:
- Newer versions of SP Flash Tool require a DA (Download Agent) authentication file for devices with Secure Boot enabled. If you do not have that file, switch to MTK Client instead, it handles Secure Boot automatically and is the simpler solution.
Normal Behavior After Installing Infinix S4 X626B Firmware
Here is what is completely normal after a successful flash:
- How to know the flash was successful: SP Flash Tool will show a green circle or checkmark when done. If you see that, the flash completed successfully.
- Wi-Fi, Bluetooth, and mobile data should all work right after setup. If mobile data is not connecting, go to Settings, SIM and Network, and re-enter your APN manually, the flash sometimes clears carrier APN settings.
- Be careful when re-adding your Google account, if you did not remove it before flashing, you may see an FRP prompt. Add it fresh during the setup wizard, not afterwards through Settings.
- The phone may ask for language and region again, this is normal after a flash. You are starting from a clean state, so the setup wizard runs just like when the phone was brand new.
- Storage will show almost full capacity available since all your apps and files are gone. The system partition size varies by firmware version but is typically 4 to 8 GB on most devices.
- First boot takes 3 to 8 minutes, do not force-reboot the device. The operating system is setting itself up from scratch. Interrupting this is how devices end up in bootloops.
- Fingerprint and face unlock data are erased during the flash. You will need to re-register your fingerprints and face data from scratch in the security settings.
Missing IMEI or Corrupt Baseband on Infinix S4 X626B After Flashing?
A missing or unknown IMEI is one of the most common things I see after a MediaTek flash. It happens because the NVRAM partition, which stores your IMEI and calibration data, sometimes does not survive the flash intact. It looks alarming, but it is fixable. Here is what to do:
- Check your drivers first: Install the Mediatek CDC Driver if you have not already, without it, the IMEI repair tools will not detect your device. This is the step most people miss.
- Use SN Write Tool or Maui Meta: SN Write Tool is the first option I try, it is straightforward and works on most MTK devices. Maui Meta is the alternative if SN Write does not connect. You can learn more about using SN Write Tool here.
- Run the repair:
- Connect your device to the computer.
- Enter the original IMEI numbers for both SIM slots, these are the numbers you wrote down before flashing.
- Click “Start” and let it complete without interrupting the connection.
- Verify after reboot: Once done, reboot your phone and dial *#06#. Your IMEI numbers should be back. If they are still showing null, run the process again, sometimes the first attempt does not complete correctly.
Video Guide: How to repair IMEI
Credits: https://www.youtube.com/@mhgsmclinic
Common Questions About Flashing Infinix S4 X626B
Q1: Can I flash this firmware if my phone does not turn on at all?
A: Yes, in most cases. As long as the phone responds to a USB connection (even with a black screen), the flash tool can detect it. If the battery is completely drained, charge it for at least 15 minutes first.
Q2: Can I use a Mac or Linux computer for this?
A: The tools and drivers referenced on this page are Windows-only. If you are on Mac or Linux, your best option is to use a Windows virtual machine, or borrow a Windows PC for the 10 minutes it takes to complete the flash.
Q3: Will flashing void my warranty?
A: Flashing official stock firmware generally does not void your warranty since you are restoring the device to its factory-intended state. However, some manufacturers may flag that the bootloader was unlocked or that the flash counter increased. Check your specific warranty terms with Infinix support if you are concerned.
Q4: What if the flash fails halfway through?
A: Do not panic and do not disconnect the phone. Close SP Flash Tool, restart it, and try the flash again from the beginning. In most cases, a failed flash just means the process needs to be repeated. The device is usually still detectable by the flash tool even after a failed attempt.
Q5: How do I enter recovery mode?
A: Power the device off completely, then hold Volume Up + Power at the same time until the recovery menu appears. The recovery menu displays the build number which you can use to verify your firmware version before flashing.
Q6: How long does the flashing process take?
A: The actual flash usually takes between 3 and 10 minutes depending on the firmware size and USB connection speed. The first boot after flashing takes another 3 to 8 minutes. Do not interrupt the device during either stage. If the progress bar in SP Flash Tool appears stuck, give it a few more minutes before assuming something went wrong.
Q7: My IMEI shows “unknown” after flashing. Is my phone permanently damaged?
A: No, it looks alarming, but it is fixable. Follow the IMEI repair guide in the troubleshooting section above. For MediaTek devices, SN Write Tool or Maui Meta will handle the repair. Do not insert a SIM card until the IMEI is restored.
Q8: Will flashing erase my data?
A: Yes, flashing with SP Flash Tool restores the device to factory state, including Android 9.0 Pie default settings. All apps, photos, contacts, and accounts will be removed. Back up everything you need before you start. There is no way to recover data once the flash is complete.
People Also Ask About Infinix S4 X626B
What chipset does the Infinix S4 X626B use?
The Infinix S4 X626B uses the MediaTek MT6762 Helio P22 chipset, a MediaTek processor. This means you need SP Flash Tool and VCOM/MTK USB drivers to flash firmware. MediaTek devices use scatter-file-based flashing, which is different from Qualcomm (QFIL) or Samsung (Odin) methods.
What is the latest firmware version for Infinix S4 X626B?
The latest available Infinix S4 X626B firmware on this page is version V323. This page has 13 firmware builds available for download. Check the firmware details table above for file sizes and Android versions.
Can flashing firmware fix a bricked Infinix S4 X626B?
Yes. If your Infinix S4 X626B is stuck on the logo, in a bootloop, or will not turn on, flashing the stock firmware with SP Flash Tool can restore it to working condition. This is the standard repair method used by service centers for Infinix devices.
How do I check my Infinix S4 X626B model number before flashing?
Go to Settings > About Phone on your Infinix S4 X626B and look for the model number “X626B”. You can also confirm by entering recovery mode (Volume Up + Power while powered off) which displays the build number and model code. Always match this exactly with the firmware filename before flashing.
Wrapping Up: Infinix S4 X626B Firmware
Your Infinix S4 X626B should now be running V323 on a clean build. If the first boot takes a while, do not worry, that is completely normal after a fresh flash.
Ran into something unexpected? Leave a comment and describe what happened. Include which step you were on and what error you saw. I will get back to you.
Consider sharing this guide with anyone else who has a Infinix device that needs fixing.
Browse all Infinix firmware downloads for more devices.
Disclaimer: Flashing stock firmware is performed at your own risk. Follow the instructions on this page carefully. I cannot be held responsible for any damage to your device, but I will always try to help if something goes wrong.
