Ok, thanks for the video. It looks like he pressed the middle button the far right at the same time as the top silver button.
Step-by-step instruction on how to upgrade firmware on Panorama2
1. format sd card in your PC
2. download new firmware to sd card root ( do not put it inside dash cam yet ).
3. go to your car
4. connect Panorama2 IN-CAR via supplied 12v cigarette charger
NEVER UPGRADE USING 5v miniusb port on top of dash camera as a power supply source.
USE ONLY 12v socket on the side of dash cam to connect to car cigarette lighter charger.
5. switch on car ignition ( ACC ), - dash camera powers on, but will not be recording because there are no sd card inserted.
6. switch off dash camera by pressing power-off button on top. Do not switch off car ignition ( ACC )
7. after dash camera switched off, insert memory card with new firmware on it.
8. press and hold "menu" button
9. when holding down "menu" button press "power-on" button on top ( still holding down "menu button" )
10. hold down "menu button" for 3-4 sec after Panorama2 power on and you see firmware download / upgrade "bar" activated and starts "runing", then release "menu" button.
11. wait till upgrade is finished.
Do not touch anything on dash camera, or do not switch off an ignition during upgrading process, - otherwise you will brick device.
12. after firmware upgrade finished, device screen goes "black" ( switches off ), - thats means upgrade is done.
Now you can power on dash camera and change menu interface to English language, because after upgrade its Korean language by default.
That's it, done.