Sat-Forum.Net

Precautions
1. USB upgrade using ZIP package file
2. Do not use software that does not match the model
3. The software version with T is not the official version,
It's an experience version for enthusiasts. Does not support OTA upgrade, need USB to download ZIP package to upgrade
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Date: 2025.6.30
Software Version: C20.A9.1.31
1.(DVB) Resolved the issue of abnormal channel switching during PVR
2. (DVB) Enhanced the display of program information while playing radio
3.(DVB) Fixed the application crash issue during quick operations
4. (DVB) Added support for the Dutch language.
5. Fixed other known issues.

USB ZIP upgrade firmware：
GTCOMBO_v2.0_C20.A9.1.31_20250625.zip

USB computer cable flashing firmware:

GTCOMBO_v2.0_C20.A9.1.31_20250625.img

These old post links do not work any more.

There is the latest copy of the .img for forced recovery and the .zip for menu use are on sat-universe, posted by maumixio.

A copy of the mediafire links here

USB ZIP upgrade firmware：
GTCOMBO_v2.0_C20.A9.1.31_20250625.zip

USB computer cable flashing firmware:
GTCOMBO_v2.0_C20.A9.1.31_20250625.img

Owen

My GTCombo is sitting in the closet after downloading this software.
It's faulty, so I'm waiting for a newer version.

ROMEK3 wrote: ↑24 Jan 2026, 11:30 My GTCombo is sitting in the closet after downloading this software.
It's faulty, so I'm waiting for a newer version.

Hi
Please explain why it's faulty??

Every so often, a message pops up saying that Wi-Fi or Bluetooth has stopped working.

ROMEK3 wrote: ↑25 Jan 2026, 11:03 Every so often, a message pops up saying that Wi-Fi or Bluetooth has stopped working.

Did yo try to roll back to a previous firmware version to test??

ROMEK3 wrote: ↑24 Jan 2026, 11:30 My GTCombo is sitting in the closet after downloading this software.
It's faulty, so I'm waiting for a newer version.

Have you tried another power supply and or with all USB items removed?

Don't wait for ever for new software.

Owen

chassis43 wrote: ↑25 Jan 2026, 18:07

ROMEK3 wrote: ↑25 Jan 2026, 11:03 Every so often, a message pops up saying that Wi-Fi or Bluetooth has stopped working.

Did yo try to roll back to a previous firmware version to test??

I installed an older version and it works fine with it

Feralkiwi wrote: ↑26 Jan 2026, 04:26

ROMEK3 wrote: ↑24 Jan 2026, 11:30 My GTCombo is sitting in the closet after downloading this software.
It's faulty, so I'm waiting for a newer version.

Have you tried another power supply and or with all USB items removed?

Don't wait for ever for new software.

Owen

I uploaded an older version "GTMEDIA GTCOMBO_v2.0_C20.A9.1.29_20240620" and it works with this firmware, but then it wants to automatically download the new one, which doesn't work with it.
I still have the Uclan Ustym 4k Pro, the GTCombo can stay in the closet.