My Photon blinks red about 20 times in a fast sequence and then two red blinks. What can I do?

Troubleshooting
1

I borrowed my friends Photon and tried turning it on. The lights are blinking as follows:

About 20 fast red blinks and then 2 slow ones. After that no more blinks.
I cant go into safe mode because it blinks magenta for two seconds and then yellow, and then red again.

Every sequence except DFU puts it back into red-mode.

I’m very unexperienced in how this works and I’ve tried everything I know, unfortunately I cant get it to work.
Have I made a simple mistake? How do I fix this?

Thank you so much.

2

If you can put it in DFU mode, then your best first shot would be installing CLI 1.16.0 (if you haven’t already) and do this

particle update
particle flash --usb tinker

The blinking sequence you describe sounds unfamiliar, so could you post a video of it (or a link)?

3

I’ve put the device in DFU-mode but the terminal unfortunately cant find any device in DFU-mode.

I’ll try to upload a video as soon as possible …

4

I managed to upload a video of the blinking sequence. Here is the link:

5

What OS are you running?
If you are on Windows you'll need zadig to install the DFU drivers.

Does your device blink yellow while in DFU mode?