Cannot change DDR750 from Koera version to English version

[johnchan]

I cannot change the firmware into English, here is my step:-
Could you help to see anything wrong in my steps?

1. Downloaded the "DR750LW-2CH_v1.010_ENG_(2014.11.28)_Windows" from the Blackvue official website.
2. Downloaded the "DR750_1.007_Kor-Eng" from your link
3. Unzip the  "DR750LW-2CH_v1.010_ENG_(2014.11.28)_Windows" and place it  in the SD card. The folder name is Blackvue.
4. Unzip the  "DR750_1.007_Kor-Eng" and we got 1 folder named upgrade(2zip files and 2 sue files) and 7files.
5. All files in step 4 are copied and replaced in the "SYSTEM" inside the Blackvue(In step 3)
6. Insert this SD card into the camera.
7. Turn on the camera.

Finally, it still Korea version

[DenisSharifulin]

johnchan,
Do as it is written here, do not have independent action. Follow the instructions strictly.
http://car-dvr.info/forum/index.php?topic=722.msg27628#msg27628