How to Flash Tecno, Infinix, and Itel Phones Using Transsion SWD Tool
Factory technician guide to flashing Transsion factory PAC and scatter firmware on Tecno, Infinix, and Itel smartphones using Transsion Software Download Tool.
Pre-Flight Checklist
Complete ALL items before proceeding. Skipping any step increases the risk of bricking your device.
Guide Steps
Install the appropriate driver package for your handset's processor (MediaTek VCOM for MTK chipsets, SPD driver for Unisoc models).
Right-click the Transsion SWD Tool executable and select Run as administrator.
In the SWD Tool interface, click the Settings gear or Load icon.
Browse to the unzipped firmware folder and select the package descriptor (scatter text file for MTK, PAC file for Unisoc, or SWD XML manifest).
Wait for the tool to verify partition checksums and populate the download image list.
Select Firmware Upgrade for complete partition rewriting and system recovery.
Click the Start button. The tool transitions to listening mode, awaiting device connection.
Power off the phone completely and disconnect all cables.
Press and hold Volume Down (on some newer models, hold Volume Down + Volume Up together) and plug the USB cable into the PC.
Release the buttons as soon as the progress bar initiates and the device is detected.
The status bar advances through red (DA/FDL boot), purple/yellow (partition writing), and turns green upon completion.
When finished, a PASS or Download Success prompt appears.
Disconnect the USB cable. Press and hold the Power button for 8–10 seconds to start the handset.
The initial boot will rebuild caches and launch the factory HiOS, XOS, or itelOS setup wizard.
Congratulations! Flash Successful!
You've successfully completed all steps. Your device should now be running the new firmware. If it's booting normally — you're done! Check the troubleshooting section below if you encounter any issues.
Troubleshooting & FAQ
Common errors and their solutions. Read this before asking for help.
Standard SP Flash Tool halts with STATUS_SEC_AUTH_FILE_NEEDED on modern MediaTek Tecno and Infinix devices because they enforce SLA/DAA authentication. Transsion SWD Tool incorporates internal authorization keys, bypassing the need for external python-based auth bypass exploits.
Ensure the USB VCOM or Unisoc Spreadtrum drivers are installed with digital signature enforcement configured properly. Connect directly to a USB 2.0 port on the rear of your PC motherboard.
Reference screenshots for this guide. Click any image to view full size.
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