What is Stock Firmware?
Stock firmware, also known as a flash file or stock ROM, is the official operating system that comes pre-installed on your Infinix Note 50 Pro Plus (model X6856). It includes all system-level files needed to run the device properly.
Flashing stock firmware is useful when:
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Your phone is stuck on the boot logo or in a boot loop
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You need to fix system bugs or lag issues
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You want to remove malware or bloatware
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You’ve bricked the phone or it's not powering on
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You want to revert back from a custom ROM to factory settings
⚙️ Firmware Details (Typical Contents)
A stock firmware package for the Infinix Note 50 Pro Plus usually includes the following files:
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Scatter File – A text file used by SP Flash Tool to map partitions
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Preloader.bin – Helps the device boot
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boot.img – Boot partition with kernel and ramdisk
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system.img – Core Android OS
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recovery.img – Recovery partition
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userdata.img / cache.img – User and cache data
Make sure the firmware version you flash matches your device’s exact variant.
⚠️ Precautions Before Flashing
Before you begin the flashing process:
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Backup all important data: Flashing erases user data
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Charge the device: Ensure the battery is at least 60%
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Use a good-quality USB cable to avoid connection errors
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Install MTK USB Drivers on your PC for proper device detection
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Disable antivirus temporarily, as it might block flashing tools
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Confirm that the firmware is for Infinix Note 50 Pro Plus – Model X6856
👇 𝗖𝗹𝗶𝗰𝗸 𝗛𝗲𝗿𝗲 𝗧𝗼 𝗗𝗼𝘄𝗻𝗹𝗼𝗮𝗱
🛠️ How to Flash Infinix Note 50 Pro Plus (X6856) Firmware
Here's a simplified step-by-step guide using SP Flash Tool:
Step 1: Extract the Firmware
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Unzip the downloaded firmware package to a folder on your computer.
Step 2: Install Required Drivers
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Install MediaTek USB VCOM Drivers to allow the PC to detect your phone.
Step 3: Open SP Flash Tool
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Launch SP Flash Tool as administrator.
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Click on "Scatter-loading" and select the
MTxxxx_Android_scatter.txtfile from the firmware folder.
Step 4: Configure Flash Options
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Select the flashing mode:
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Download Only – recommended for basic flashing
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Firmware Upgrade – for full system rewrite
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Uncheck “Preloader” if you're unsure or want to be cautious.
Step 5: Connect Your Phone
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Power off the device.
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Click "Download" in SP Flash Tool.
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Connect the phone to your PC via USB while holding the Volume Down or Volume Up button.
Step 6: Flashing Process
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Wait for the progress bar to complete.
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A green checkmark will appear if successful.
Step 7: Reboot the Device
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Disconnect the device and power it on.
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The first boot may take 5–10 minutes.
🧰 Troubleshooting Common Flashing Issues
| Issue | Cause | Solution |
|---|---|---|
| Phone not detected | Driver missing or bad cable | Reinstall drivers, try different cable/port |
| Flash fails at preloader | Incompatible firmware | Uncheck preloader or use matching firmware |
| Boot loop after flashing | System mismatch | Flash using “Firmware Upgrade” mode |
| IMEI lost | EFS/NVRAM overwritten | Use IMEI repair tools after flashing |
| Secure Boot error | DA/Auth file required | Use tools supporting authentication bypass |
❗ Warning & Disclaimer
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Flashing firmware will erase all data from the phone.
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Proceed only if you understand the risks.
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Using incorrect firmware may brick your device.
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This guide is for educational purposes only.
📌 Final Thoughts
Flashing the official stock firmware on your Infinix Note 50 Pro Plus (X6856) can restore your device to factory condition, fix stubborn software issues, and even revive a dead phone. By following the correct steps and using the proper tools, you can perform the process safely and effectively.
If you frequently work with Infinix or MediaTek-based phones, keeping backup copies of your firmware and drivers can save you time in the future.
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