Infinix Hot 50 5G X6720B Stock ROM | Firmware Flash Guide

📶 Infinix Hot 50 5G X6720B Stock ROM Flash Guide

ℹ️ 5G-Specific Firmware Notes

The Infinix Hot 50 5G (X6720B) uses MediaTek's Dimensity 6100+ chipset (MT6835) requiring special handling for 5G modem firmware and carrier aggregation settings.

📁 5G Firmware Structure

X6720B-D6100P123-R-EE-20240615
├── preloader_mt6835.bin
├── md1img.img (5G modem firmware)
├── super.img (dynamic partitions)
├── boot.img
├── dtbo.img
├── vbmeta.img
├── MT6835_Android_scatter.txt
└── carrier_config.xml

⚙️ 5G Flashing Requirements

Hardware:

• USB 3.0 Type-C cable (5G requires stable connection)
• Windows 11 (22H2+) 64-bit
• Uninterruptible power supply

Software:

• SP Flash Tool v5.2401+ (Dimensity version)
• MTK DA+DL Tool v1.2.3
• 7-Zip 23.00+ for extraction

Device Prep:

• Disable FRP lock in developer options
• Backup NV data (especially IMEI/5G bands)
• 60%+ battery charge

🔧 Dimensity-Specific Flashing

Step 1: Extract firmware to folder without spaces in path

Step 2: Install MTK Preloader VCOM drivers (disable driver signature enforcement)

Step 3: Launch SP Flash Tool as Administrator

Step 4: Load MT6835_Android_scatter.txt

Step 5: Select Firmware Upgrade mode (not Download)

Step 6: Power off device completely

Step 7: Hold Vol Up + Vol Down simultaneously

Step 8: Connect USB cable (keep holding buttons for 5s)

Step 9: Click Download in SP Flash Tool

Step 10: Wait for all progress bars (red→yellow→green)

⚠️ Critical 5G Warnings

• Never skip md1img.img (contains 5G modem firmware)
• Avoid public WiFi during flashing (security risk)
• Dimensity chips require specific DA/XML auth files
• 5G NR calibration data may be lost - backup first

❌ 5G-Specific Errors

Error	Solution
5G NR Not Working After Flash	Re-flash md1img.img separately
S_DA_NORAM_VERIFY_FAIL (6050)	Use certified USB cable
BROM ERROR: S_SECURITY_SECURE_USB_DL (0xC0030009)	Disable "Secure Boot" in BIOS

✅ Post-Flash Verification

1. Check 5G network bands (*#*#4636#*#*)
2. Test carrier aggregation (CA_Combos field)
3. Verify IMEI matches original (*#06#)
4. Run 5G speed test in supported area

🚨 Legal Disclaimer

This guide is for educational purposes only. The Infinix Hot 50 5G X6720B firmware is proprietary software owned by Infinix Mobility. We do not host or distribute any firmware files. Obtain official firmware through:

• Infinix authorized service centers
• Official OTA updates
• Infinix XClub for technicians

Unauthorized 5G modem firmware modification may violate telecommunications regulations in your country.

Download the necessary tools and drivers:

MTK USB Drivers SP Flash Tool (with Auth Bypass)

ROM X6720B-H353T-U-OP-240819V264