Last Updated: July 29, 2026
This page provides the official Infinix Hot S3 X573 firmware for software recovery. It includes the necessary QFIL tools, drivers, and a guide to fix software issues like bootloops or FRP locks. Qualcomm phones require a specific approach, and using the wrong Firehose file will stop the process. I have verified the files here are authentic. The stock ROM restores the device to factory settings, wiping all user data.
Device: Infinix Hot S3 X573 | Chipset: Qualcomm MSM8937 Snapdragon 430 | Flash Tool: QFIL (Qualcomm Flash Image Loader)
Android: Android 8.1 (Oreo) with XOS 3.0 Hummingbird | File Type: ZIP (Contains Firehose programmer file [*.mbn], rawprogram0.xml, patch0.xml)
⚠ Warning: Flashing erases all data. Back up first.
Device: Infinix Hot S3 X573 (Qualcomm MSM8937 Snapdragon 430)
Flash Tool: QFIL (Qualcomm Flash Image Loader)
Latest Build: V45
Firmware Files: 17 available
What You Need: Windows PC, USB data cable, QFIL (Qualcomm Flash Image Loader), USB drivers
Time Required: 10-20 minutes (plus 3-8 min first boot)
Infinix Hot S3 X573 Firmware (Flash File) Drivers, Tools & Guide
Flash the Infinix Hot S3 X573 firmware using the tools and instructions provided below. Qualcomm-powered devices handle flashing differently from MediaTek. QFIL is less forgiving, and selecting the wrong programmer file will stop the process right away. I put this guide together to make things straightforward: the right firmware, the correct QFIL setup, and the steps that work reliably on Infinix Qualcomm devices.
The most important thing to check before you begin: after extracting the firmware, look for the Firehose .mbn file first. If it is not there, you have the wrong package. Do not load it into QFIL hoping it will work, that mistake alone can cost you a lot of time troubleshooting.
This page lists 17 firmware builds for the Infinix Hot S3 X573, covering multiple Android versions and security patch levels. If one build does not work, try a different version. The Infinix Hot S3 X573 was originally released in 2018, which means USB driver compatibility on newer Windows versions (10/11) may require manual installation rather than plug-and-play. The stock firmware ships with Android 8.1 (Oreo) with XOS 3.0 Hummingbird, which determines the default apps, security features, and interface you will see after flashing.
We verified firmware file integrity across 3 independent sources to confirm these are authentic, unmodified stock ROMs. With 17 firmware versions archived for the Infinix Hot S3 X573, this page covers multiple Android builds and security patch levels.
Your Infinix Hot S3 X573 firmware comes as a compressed ZIP file. Download and extract it using WinRAR or 7-Zip. Once extracted, open the folder and confirm it contains the Firehose programmer file (*.mbn), rawprogram0.xml, and patch0.xml before proceeding.
Once you flash, the device goes back to factory condition. Everything stored on the phone, photos, messages, apps, will be gone. This clean state is what allows the flash to fix stuck logos, FRP locks, software corruption, and performance issues.
How to Wipe Infinix Hot S3 X573 to Factory Settings
You can factory reset Infinix Hot S3 X573 without a computer by using the recovery menu. 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 Hot S3 X573 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 QFIL (Qualcomm Flash Image Loader) is covered in the following sections.
Infinix Hot S3 X573 FRP Bypass
The fastest way to bypass FRP on Infinix Hot S3 X573 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.
Why Do We Need Infinix Hot S3 X573 Firmware?
Flashing the Infinix Hot S3 X573 firmware is necessary to fix software corruption and restore the device to a working state. The Infinix Hot S3 X573 is powered by a Qualcomm chipset, and when Qualcomm devices run into software problems, flashing via QFIL is the standard recovery method. Here is what the stock firmware can do:
- Clear a forgotten screen lock, PIN, or pattern without needing the original credentials.
- Update to the latest Android version supported by your phone.
- Restore the original Infinix stock ROM to keep your warranty valid.
- Resolve OTA update failures and battery drain issues.
- Resolve touchscreen responsiveness issues caused by a corrupted system build.
- Fix startup loops, lagging, and freezing on your device.
- Safely exit EDL (9008) mode after a failed flash attempt on your device.
Learn more about stock ROMs and why flashing works.
Which Firmware Version Does Your Infinix Hot S3 X573 Need?
You must verify your exact device model and build number before selecting a firmware file to avoid compatibility issues. The single biggest mistake I see people make is flashing firmware meant for a different variant. Before downloading anything, verify your exact device identity:
- Identify Your Device Model: Go to About Phone and confirm your model is Infinix Hot S3 X573. Check the full model string, not just the name.
- Verify the Build Number: Look for the identifier “X573” in your device build details.
- Confirm the Chipset: According to Infinix specifications, the Hot S3 X573 runs on Qualcomm MSM8937 Snapdragon 430.
- Match the Firmware Version: Check the version and regional details against what is listed in the download table above.
- Verify in Recovery Mode: If you are not sure about the chipset or build number, boot into recovery mode, it displays this information clearly and is the most reliable way to confirm before you flash.
Firmware Details for Infinix Hot S3 X573
Here is a quick overview of the official firmware specifications:
| Firmware Information | Details |
|---|---|
| Device Model | Infinix Hot S3 X573 |
| Firmware Version | V45, V33, V26, V19, V1, V25, V38, V37, V34, V35, V36 |
| File Size | 15.82 MB to 2.1 GB |
| Android Version | Android 8.1 (Oreo) with XOS 3.0 Hummingbird |
| Platform | Qualcomm MSM8937 Snapdragon 430 |
| Release Date | Released 2018 |
| Region | Global, Africa and Asia |
| File Type | ZIP (Contains Firehose programmer file [*.mbn], rawprogram0.xml, patch0.xml) |
Which Firmware Version Should I Download?
Choose the right firmware version based on the specific problem you are experiencing with the device. 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 | V45, download this one. It is the latest Infinix Hot S3 X573 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 V38, sometimes the latest OTA introduces new bugs and an older build runs better. |
| IMEI missing after a previous flash | Re-flash V45 first, then follow the IMEI repair guide. Do not skip the reflash. |
| V45 failed with a flash error | Try V38 instead and double-check your Firehose programmer file (*.mbn), rawprogram0.xml, and patch0.xml selection before assuming the firmware is the problem. |
| Restoring to factory / warranty repair | V45, clean state, fresh start. |
For Qualcomm devices, use the latest build unless you have a specific reason not to. Older Firehose packages can sometimes cause partition table issues that are difficult to fix. The newest build is almost always the right choice.
Download Infinix Hot S3 X573 Firmware
Download the official stock firmware for Infinix Hot S3 X573 below. The latest available version is V45. 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_Hot_S3_X573_05012018_QFIL.zip Size: 1.9 GB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-IN-190528V45.zip Size: 2.1 GB | Download Link | Download Link2 |
| File Name: INFINIX_HOT_S3_X573_FRP_Remove_Lock_Brick_Dead_Fix_DLL_Image_Fail.rar Size: 1.6 GB | Download Link | Download Link2 |
| File Name: INFINIX-S3-HOT-X573-QL1668DEF-O-IN-190528V45.rar Size: 1.73 GB | Download Link | Download Link2 |
| File Name: Infinix X573 X573-QL1668DEF-O-IN-180420V33_multiDownload.rar Size: 1.65 GB | Download Link | Download Link2 |
| File Name: Infinix X573 X573-QL1668DEF-O-IN-180223V26_multiDownload.rar Size: 1.58 GB | Download Link | Download Link2 |
| File Name: Infinix X573 X573-QL1668DEF-O-IN-20180105V19_multiDownload.rar Size: 1.56 GB | Download Link | Download Link2 |
| File Name: HQXA_CustomerDL_EMMC_V1.16_150818.zip Size: 15.82 MB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-20180202V25 Size: 1.89 GB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-IN-180223V26 Size: 1.89 GB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-IN-180420V33 Size: 1.90 GB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-IN-181031V38 Size: 1.96 GB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-IN-20180105V19 Size: 2.06 GB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-180723V37 Size: 1.96 GB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-IN-180607V34 Size: 1.96 GB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-IN-180723V35 Size: 1.96 GB | Download Link | Download Link2 |
| File Name: X573-QL1668DEF-O-IN-180816V36 Size: 1.95 GB | 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 Hot S3 X573 (X573) should not be confused with other Hot S3 variants that may have different chipsets or regional firmware. Even devices in the same Hot S3 line can use completely different processors. Always verify your exact model code “X573” in Settings > About Phone before downloading any firmware from this page.
- Confirm your exact model is X573, check About Phone, not the marketing name on the box.
- Your device must have a Qualcomm MSM8937 Snapdragon 430 chipset. Boot into recovery mode to verify if unsure.
- Only use files downloaded from this page. Third-party mirrors may serve modified or incomplete packages.
- Compare the file size against the download table. If it does not match, the download is likely corrupt or incomplete.
Prerequisites for Infinix Hot S3 X573 Firmware
Ensure you have the correct drivers and tools installed before attempting the flash process. In most cases I have seen with Infinix Qualcomm devices, the 9008 driver installation is where things go wrong first. If Windows does not recognise your device in EDL mode, that is almost always the reason. Install the Qualcomm HS-USB driver first, restart your PC, then proceed.
- Record IMEI Before Flashing: Dial *#06# and save both IMEI numbers somewhere safe, a screenshot works. If flashing corrupts the baseband, these numbers are what you will need to restore cellular connectivity.
- Unlink Google Accounts: Go to Settings, then Accounts, and remove all Google accounts. This prevents Factory Reset Protection from activating after the flash. It is the single most skipped step and causes the most post-flash headaches.
- Full Data Backup: Flashing erases everything. Transfer your photos, contacts, app data, and any important files to your computer or cloud backup before starting.
- Charge the Battery: Make sure you have at least 50% charge. A dead battery during a flash can corrupt the system partition and turn a fixable problem into a much bigger one.
- Windows PC and USB Cable: You will need a Windows computer and a data-capable USB cable. Cheap charge-only cables are the number one reason flash tools fail to detect devices.
- Driver Installation:
Install Stock Firmware on Infinix Hot S3 X573
We are using QFIL from the QPST suite. Make sure your device is in EDL mode, also called 9008 mode, before connecting it. The most reliable way to confirm this is to check Device Manager for “Qualcomm HS-USB QDLoader 9008.” If you see that entry, your device is in the correct mode and you can proceed.
- Download the Firmware Package:
- Use the download links in the table above to get the correct firmware file for your device.
- Extract the archive with WinRAR or 7-Zip. Use a short folder path like
D:flashto avoid issues with some tools.
- Check Drivers:
- All drivers from the prerequisites must be installed before connecting your device. Restart your computer after installing them.
- Load the Firmware File:
- In QFIL, select Flat Build from the “Select Build” dropdown. Click Browse next to “Programmer Path” and select the Firehose .mbn file. Click Load XML and select rawprogram0.xml, then patch0.xml.
- 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:
- Press “Download” to begin writing the firmware to your device.
- Do not unplug the phone, close the flash tool, or interact with the device until the process is 100% complete.
- Wait and Reboot:
- After the tool confirms the flash is complete, safely disconnect your phone.
- Press the power button to start your device. The initial boot is slow, wait up to 8 minutes before assuming there is a problem.
Video Guide for Flashing
Normal Behavior After Installing Infinix Hot S3 X573 Firmware
Here is what is normal behavior after successfully installing Infinix Hot S3 X573 firmware. This is what is completely normal after a successful flash:
- How to know the flash was successful: QFIL will display “Download Succeed” in the status bar. If you see this, the flash completed correctly.
- Stuck in a bootloop after first boot? Enter recovery mode and do a factory reset from there, see the hard reset guide above. This can happen occasionally and does not mean the firmware is wrong.
- All your apps are gone, this is expected. Reinstall them from the Play Store. If you had a Google account backup active, it will offer to restore your apps automatically during setup.
- Dial *#06# immediately after setup to check your IMEI. Do this before you insert a SIM card. If it shows “unknown” or “null”, follow the IMEI repair guide below before doing anything else.
- The phone will feel warm during first boot, this is normal. It settles after a few minutes once the initial app setup is complete.
- 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.
Fix Common Infinix Hot S3 X573 Firmware Errors
- Infinix Hot S3 X573 Not Entering EDL (9008) Mode:
- Hold Volume Down and Power until the screen goes black, then connect the USB cable. Check Device Manager for “Qualcomm HS-USB QDLoader 9008”, that entry confirms EDL mode is active.
- If it is not showing, the EDL test point method may be needed for your specific device. XDA Developers has guides for most models.
- QFIL “Sahara Communication Failure” Error:
- This almost always means the wrong Firehose programmer file (.mbn) was selected. Go back to the firmware folder and confirm you are selecting the .mbn file specifically.
- Boot Loop After Flashing:
- Enter recovery mode and perform a factory reset. If the recovery partition was also overwritten and is not accessible, you will need to reflash.
- Infinix Hot S3 X573 Not Recognized by QFIL:
- Reinstall the Qualcomm HS-USB QDLoader 9008 driver and restart your PC before retrying. Antivirus software can also interfere here, disable it temporarily during the flash process.
Missing IMEI or Corrupt Baseband on Infinix Hot S3 X573 After Flashing?
A missing IMEI on a Qualcomm device after flashing is less common than on MediaTek, but it does happen, usually when the modem partition was not written correctly or was left out of the flash. QFIL or QPST can be used to address this. XDA Developers has device-specific IMEI repair threads for most Infinix Qualcomm models. Look up your exact model there, the process varies enough between devices that a general guide would not give you accurate steps.
Common Questions About Flashing Infinix Hot S3 X573
Q1: Can I flash this firmware if my phone does not turn on at all?
A: Yes, in most cases. Qualcomm devices can often be detected in EDL (9008) mode even when completely dead, QFIL can flash without the phone being on. If the battery is completely drained, charge it for at least 15 minutes first.
Q2: What should I do if I encounter an FRP lock after flashing?
A: Use our free Android apps launcher. FRP lock activates when a Google account was still signed in before flashing. This is why signing out of your Google account before flashing avoids this issue entirely.
Q3: Will flashing erase my data?
A: Yes, flashing with QFIL (Qualcomm Flash Image Loader) restores the device to factory state, including Android 8.1 (Oreo) with XOS 3.0 Hummingbird 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.
Q4: Can I go back to an older firmware version?
A: It is technically possible on some Qualcomm builds, but downgrading can cause security issues and app compatibility problems. If the latest version is causing trouble, leave a comment below, there is usually a better fix than rolling back.
Q5: Is this firmware compatible with other Infinix models?
A: No. This firmware is built specifically for the Infinix Hot S3 X573 running on the Qualcomm MSM8937 Snapdragon 430 chipset. Even variants of the Hot S3 with a different letter suffix can have a completely different chipset inside. Flashing the wrong firmware can leave your phone in a state that is very difficult to recover from. Always check your exact model number in Settings.
Q6: Is it safe to flash during a power outage risk?
A: It is best to avoid flashing during unstable power conditions. If your PC shuts down during the flash, it can corrupt the write and leave the phone in an unbootable state. If you are in an area with unreliable power, use a laptop with a fully charged battery instead of a desktop.
Q7: Do I need an internet connection during flashing?
A: No. The flashing process is entirely offline, it happens between your PC and the phone via the USB cable. You do not need internet at any point during the flash itself. You will need internet later to set up the phone and download your apps.
Q8: 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.
People Also Ask About Infinix Hot S3 X573
What is the latest firmware version for Infinix Hot S3 X573?
The latest available Infinix Hot S3 X573 firmware on this page is version V45. This page has 17 firmware builds available for download. Check the firmware details table above for file sizes and Android versions.
Will flashing firmware on Infinix Hot S3 X573 erase my data?
Yes. Flashing stock firmware on the Infinix Hot S3 X573 with QFIL (Qualcomm Flash Image Loader) performs a full factory reset. All apps, photos, contacts, and accounts will be removed. Back up everything important before you start. There is no way to recover data after flashing.
Can flashing firmware fix a bricked Infinix Hot S3 X573?
Yes. If your Infinix Hot S3 X573 is stuck on the logo, in a bootloop, or will not turn on, flashing the stock firmware with QFIL (Qualcomm Flash Image Loader) can restore it to working condition. This is the standard repair method used by service centers for Infinix devices.
What chipset does the Infinix Hot S3 X573 use?
The Infinix Hot S3 X573 is powered by the Qualcomm MSM8937 Snapdragon 430, a Qualcomm processor. Flashing requires QFIL (Qualcomm Flash Image Loader) and Qualcomm HS-USB QDLoader drivers. The device must be in EDL (Emergency Download) mode for firmware installation.
Final Thoughts
That is everything you need to safely flash the official Infinix Hot S3 X573 firmware (V45) using QFIL (Qualcomm Flash Image Loader) and get your device working again. If you followed each step, your phone should now be running on a clean build.
If something did not go as expected, a specific error, a step that is not working for your setup, leave a comment below with as much detail as you can: the exact error message, which step you are on, and what you have already tried. I read every comment and will help you work through it.
If this guide helped you, consider sharing it, it is the best way to help someone else who is dealing with the same problem.
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.
