Tenda Hg9 Firmware Link
Most Tenda HG9 units have an online upgrade feature:
The official firmware for the Tenda HG9 AC1200 Dual-band GPON ONT Go to product viewer dialog for this item. tenda hg9 firmware link
Tenda frequently reorganizes its download database. Use the “Download” section of their main site search with the keyword “HG9”. Alternatively, use the Wayback Machine to find archived links for older versions. Most Tenda HG9 units have an online upgrade
Once you obtain the firmware file (usually a .bin or .trx ): tenda hg9 firmware link
Users should only source firmware from official channels like the Tenda Global Support Page