Revert from Mars firmware to the Original firmware for GT Media Combo 4k

You can yes

Heres how, this works to go from stock to Mars or Mars to stock. In your case youll just need the stock firmware on the usb stick.

1. Format your USB to Fat 32

2. Transfer GTCOMBO_v2.0_C20.A9.1.29_20240620.zip to the USB stick.

3. On the USB stick unzip the GTCOMBO_v2.0_C20.A9.1.29_20240620.zip to the USB stick also.

4. Transfer the latest Mars Firmware Mars_V3.3.3.

Your stick should end up looking like this.

image_2024-08-28_155950641.png

5. Now power down and flip your combo over and insert USB stick i use the side USB port, now either short the points on the motherboard or press the reset button and hold it pressed and power on the Combo while still holding the reset down.

6. Keep it pressed till the Android recovery screen appears.

7. Scroll down and select upgrade from EXT, long press on ok or in my case long left click on a usb mouse brings up a screen to select the firmware to upgrade to. I went straight to the Mars Firmware and selected that long press on ok or in my case long left click on a usb mouse starts the upgrade.

8. When its finished flashing select reboot.

You can continue to use

I do not see reset button in my remote control where it is?

GTcombo.jpg

Newer GT Combo recievers do no have a reset button, need to open box and short these two pins

GTcombo2.jpg

If i do not manage to do this one question in mars firmware where can i put manually the biss key published?

thanks in advance.

I recently purchased a GTcombo and checked. Found reset button as per picture. Removed plastic section covering the reset button so now accessible without opening the box. I am not planing to revert to original but as in the first post it should work

GTcombo reset button.jpg

i have difficulty to find biss key to manual insert in mars 3.3 and also i think auto biss is not working ...

i wait in 7 east channels are not opening ...

hatters1976 press 4 times or more the pg + and see if you get the biss key input.

i have tried that nothing chicken101 its working in mars i have in v8x ... older firmware

do we know if it will be available soon and in combo next firmware maybe?

Go to menu-Other-Patch menu and on the top of the Patch menu you can change the keys by going left or right. Blue button to edit key

Quote from hatters1976

i have difficulty to find biss key to manual insert in mars 3.3 and also i think auto biss is not working ...

i wait in 7 east channels are not opening ...

Go to: Menu-Other-Patch menu and on the top of the Patch menu you can change the keys by going left or right. Blue button to edit key

ok i found that for example how to see digea biss 39 east? send me someone pm how to put them. thanks in advance.

Hi, i am in Mars 3.3 with gtcombo box, by mistaken erased Chanel list. Now it is not searching anymore. TP list searches but no any channel found 88 east.

Before it, i was facing freezing issues continuously.

Plz help & guide me.

Anyone can help to provide the link link for downloading the original GTmedia combo 4k firmware, i couldnt find it anywhere

Tu jest :

GTCOMBO_v2.0_C20. A9.1.29_20240620

......

Is there a way to do it and in the other receiver V8X?

I have managed to do for the GT COMBO.