The update file must be exactly 9,323,004 bytes long. You can get it by clicking on "Download BIN file here" directly under the video in the first post in this thread if yours isn't that size. You'll need to extract it from the downloaded ZIP file.I am having a little bit of trouble with mine.
I did the SN.txt and when I did the factory reset the camera locked up. I used the reset button and tried it again. It froze again so i used the reset button. I decided to check the SN and it does say US.
Now I have tried to flash the firmware and when i plug it in the red light comes on and nothing else happens.
I tried doing it with the .bin as is
I tried renaming to .zip and unzipping. I got the 9MB file, but it still did the same thing.
I tried the file name firmware.bin and FWCARC10.bin both with no luck.
Camera still boots okay and shows what I am guessing is an insert card in Chinese when I take the card out.
Anyone have any ideas?
Your microSD card must be formatted FAT32, and the .bin file must be the only file on the card.
Try it again first by naming it firmware.bin, and if that doesn't work, try calling it FWCARC10.bin. I know you've done that before, but FAT32 formatting and the file size are what's critical - the file size defines the English firmware.
It took me several tries, and at one point I thought I'd bricked the thing, but eventually I got it to take the English firmware (once I changed the SN to US, which went fine - it was the new English firmware that drove me crazy).
There's also a decent description of how to recover on the English Yi support page: