Last Updated: September 9, 2026
Solve your Infinix S4 X626B issues with the official stock firmware. This page provides everything needed: hard reset instructions, FRP bypass solutions, firmware files, IMEI repair tools, required drivers, and step-by-step flashing procedures.
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
The Infinix S4 X626B frequently enters my workshop with common software issues—FRP locks, bootloop problems, or getting stuck at the Infinix logo. This guide consolidates all necessary resources: firmware files, flashing tools, and precise procedures I use in repairs.
Before starting, extract the firmware to a straightforward folder path like C:FirmwareX626B. SP Flash Tool may struggle to locate the scatter file if the path contains spaces or special characters, which causes unnecessary delays during setup.
Originally released in 2019, the Infinix S4 X626B may require manual driver installation on modern Windows versions (10/11) since it uses MediaTek MT6762 Helio P22 hardware. The stock firmware runs Android 9.0 (Pie), which dictates default applications, security features, and interface elements after installation. For flashing, SP Flash Tool and VCOM/MTK drivers are essential, as outlined in the prerequisites section.
>Firmware file integrity was verified across two independent sources to confirm these are authentic, unmodified stock ROMs. As a Transsion Holdings product, Infinix devices share similar MediaTek architectures and flashing protocols across the S4 series.
Your Infinix S4 X626B firmware arrives as a compressed ZIP file. Use WinRAR or 7-Zip to extract it. After extraction, confirm the presence of the scatter file in the folder before proceeding with installation.
>Flashing overwrites all software partitions. This process removes data, applications, and accounts. The complete wipe resolves deep software issues—ranging from FRP locks and boot failures to Wi-Fi problems and application crashes.
Infinix S4 X626B FRP Bypass
The quickest method to bypass FRP on the Infinix S4 X626B involves using a free Android apps launcher that provides settings access during initial setup. After flashing or factory reset, a Google account lock (FRP) may appear. Our free Android apps launcher offers the fastest solution. This is why removing Google accounts before flashing is recommended—it prevents this issue entirely.
Hard Reset Infinix S4 X626B
>To perform a factory reset without a computer, power off the device completely, then hold Volume Up and Power simultaneously until the recovery menu appears. Navigate to “Wipe Data/Factory Reset” using volume keys and confirm with the Power button.
>A hard reset clears all data and returns the Infinix S4 X626B to its original factory state. This resolves most software problems—slow performance, app crashes, forgotten screen locks, and bootloops. If issues persist after reset, complete firmware flashing using SP Flash Tool as detailed below.
Verify Your Infinix S4 X626B Model Before Downloading
>The most frequent error I observe is flashing firmware intended for a different variant. Before downloading, verify your exact device identity:
- Verify Your Exact Model: In Settings, locate the model code “X626B”. Some Infinix phones share marketing names but have different internal hardware configurations.
- Confirm the Processor: This firmware targets the MediaTek MT6762 Helio P22 chipset. Check via recovery mode or a hardware information application.
- Review the Version Number: The firmware version in the download table should match or exceed your current build number.
- Use Recovery Mode as a Safety Check: Before flashing, boot into recovery to view the current build number and chipset printed on screen. This is the most reliable verification method.
- Verify the Region: Some firmware builds are region-specific. Confirm the download matches your device region or is marked as global.
Why Do We Need Infinix S4 X626B Firmware?
>The Infinix S4 X626B relies on a MediaTek chipset, making SP Flash Tool the standard firmware recovery method for MTK devices. Here’s what stock firmware flashing addresses:
- Restore original Infinix stock ROM to maintain warranty validity.
- Repair phones that shut down randomly or restart continuously.
- Resolve touchscreen issues caused by corrupted system builds.
- Unlock devices that are locked or disabled.
- Fix Wi-Fi, Bluetooth, or mobile data connectivity failures post-update.
- Resolve OTA update failures and battery drain problems.
- Recover from “Download DA FAIL” errors and Secure Boot authentication issues specific to the MediaTek MT6762 Helio P22 chipset.
>Learn more about stock ROMs and why flashing works.
Firmware Details for Infinix S4 X626B
>Here is a concise 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 4 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 most frequent question in comments, so here’s a practical guide. Match your situation to the table and select the appropriate 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 excessive time on older builds when the newest one would have worked fine. Only switch to an older version if the latest fails more than once, and confirm it’s a driver issue, not a firmware problem.
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 discrepancy usually indicates a partial or corrupt download, which can cause additional problems.
| 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: 2 GB | Download Link | Download Link2 |
>Only download firmware 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 result from rushing through preparation steps. The VCOM driver installation is critical for the Infinix S4 X626B and other MediaTek devices. Windows may display the device in Device Manager, but SP Flash Tool will not detect it without the correct VCOM driver.
- IMEI Backup: Dial *#06# and record both IMEI numbers. If you need to repair your IMEI after flashing, these numbers are essential.
- Remove All Google Accounts: Go to Settings > Accounts and sign out of every Google account. Leaving accounts signed in triggers FRP lock after a flash, blocking phone setup.
- Backup Everything: Transfer photos, contacts, messages, and WhatsApp data to a computer or cloud service. The flash restores the phone to factory state with no data retained.
- 50% Battery Minimum: Do not begin with low battery. Power loss during flashing can render the device unresponsive and harder to recover.
- USB Cable and Computer: Use a proper data-transfer USB cable and Windows PC. Avoid USB hubs—connect directly to the motherboard port for stability.
- Download and Install Drivers:
Infinix S4 X626B Firmware Installation Guide
>We use SP Flash Tool for Windows or SP Flash Tool for Linux for this process. Load the scatter file from the extracted firmware folder, select “Download Only” (preserves user data) or “Firmware Upgrade” (full wipe), and click the green Download button. SP Flash Tool will wait for the device—power it off completely, then connect the USB cable. If the latest SP Flash Tool fails to detect this device, try SP Flash Tool v5.1924 instead—older MTK devices often work better with older tool versions. 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 struggle with them.
- Install the Listed Drivers:
- Confirm all drivers listed above are installed and your PC has been restarted since installation. Skipping the restart is a common reason drivers fail.
- Load the Firmware File:
- Click on the “Scatter-loading” button. Navigate to the firmware extraction folder 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—allow 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 problem. 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 cause detection issues with MediaTek devices more often than expected.
- Still not working? Temporarily disable your antivirus. It can block the VCOM driver from loading without displaying an error.
- Boot Loop After Flashing:
- Enter recovery mode and perform a factory reset from there. Most post-flash bootloops on MediaTek stem from conflicts with old cached data—a wipe from recovery usually resolves this without reflashing.
- Wrong Scatter File / Firmware Mismatch:
- If SP Flash Tool throws an error when starting the download, check your scatter file first. A mismatch between the scatter file and device build is a leading cause of flash errors.
- “Download DA FAIL” Error:
- This error appears regularly. It almost always indicates improperly installed VCOM drivers. Reinstall them, restart your PC, and try again. If the issue persists, switch 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 holding 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 display a green circle or checkmark when done. If you see that, the flash completed successfully.
- Wi-Fi, Bluetooth, and mobile data should all function immediately after setup. If mobile data fails to connect, 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 encounter an FRP prompt. Add it fresh during the setup wizard, not through Settings afterwards.
- 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 as it did when the phone was new.
- Storage will show nearly 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 security settings.
Missing IMEI or Corrupt Baseband on Infinix S4 X626B After Flashing?
>A missing or unknown IMEI is one of the most common issues after a MediaTek flash. This occurs because the NVRAM partition, which stores IMEI and calibration data, sometimes does not survive the flash intact. It looks alarming but is fixable. Here is what to do:
- Check your drivers first: Install the Mediatek CDC Driver if you have not already—without it, 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 recorded 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 restored. If they still show 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 an 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.
