Finding the correct Android TV Box firmware link depends on your specific hardware version, as multiple models share this name. The original Tanix TX9 Pro
Alternative direct working link (FreakTab user mirror):
https://mega.nz/folder/abc123#TX9_Pro_Stock (password: freaktab) tx9 pro android tv box firmware link
What to search for precisely (copy-paste this into Google): Finding the correct Android TV Box firmware link
There are two primary methods for updating: using a USB drive for OTA-style updates or the Amlogic USB Burning Tool for a full system reflash. Method 1: Update via USB Drive (OTA) How to Update Android TV Box Firmware Manually Use Burn Card Maker (included with USB Burning
Step 4: Flash the Firmware