I’ve got a Photon that I’ve used successfully for years, but I’ve had it off-line for a while, and just now tried to bring it back on-line. I put a new (VERY simple) app on it, and have not been able to get it to behave right at all. It will never go into the breathing cyan state. Instead it cycl…

@spork - [image] spork: If I ping it from the console it sometimes says that the device in “on-line and connected” and a few seconds later it will say it can’t be reached. But it never does get into the breathing cyan mode It this even after flashing Tinker app? If so, I would recommend fol…

@spork - The are on the page if you scroll down a bit. See image; [Screenshot 2020-08-03 at 11.40.17] Of course there are newer versions of device OS, I juist dont have the link. Should be easy to find on GutHub, or start with these, you can update afterwards :wink:

D’OH! Sorry about that. I’ve got them downloaded now, but it’s 3am so I’ll have to take it up tomorrow. Thanks again.

[image] spork: D’OH! Sorry about that. haha... all good! let me know.

OK, I just tried flashing the four files. The first two went fine. When I tried to flash the bootloader I got this message: “Error writing firmware…unknown module function 2, use --force to override” I didn’t try the “–force” option because I didn’t want to risk flashing the wrong thing before c…

I unplugged it and plugged it back in to see whether it would go on-line - despite not yet having the bootloader or tinker app. It doesn’t currently show up in my device manager, and the LED quickly goes to a constant white (not flashing) mode. I can’t ping it.

Check this thread, it deals with a similar problem. [image] Bootloader version mismatch after upgrading Xenon from 0.9.0 to 1.2.1 BLE // NFC Updating from a firmware prior to 1.2.1 (IIRC) the bootloader cannot be flashed via DFU Mode (using --usb). You’d need to put the …

Thanks. But I just went ahead and configured it to my home wifi network - and that worked!? So I went into the console on my laptop and flashed Tinker - and that worked!? So it currently seems to actually be working perfectly (which makes me very happy and appreciative). Do I still need to try t…

[image] spork: Do I still need to try to flash the bootloader anyway? You can find that out by putting your device into Listening Mode (blinking blue) and then run particle serial inspect.

Thanks. It looks good from what I can see. Here’s the bootloader portion… Bootloader module #0 - version 400, main location, 16384 bytes max size Integrity: PASS Address Range: PASS Platform: PASS Dependencies: PASS

[image] spork: So it currently seems to actually be working perfectly (which makes me very happy and appreciative). Do I still need to try to flash the bootloader anyway? Hi @spork - Glad to hear it is seemingly working :slight_smile: FYI and in my experience... you can --force to override …

Can anyone help me recover my Photon?

Hardware

Mjones August 3, 2020, 5:46pm 13

Check this thread, it deals with a similar problem.

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AVOID factory reset - What to do with unexpected LED behavior on a Photon	41	26590	February 15, 2016
Photon Troubleshooting Guide (as of Firmware v0.4.6)	31	21076	January 11, 2016
Particle Photon led stuck on solid white, factory reset procedure not working Troubleshooting	25	9939	September 2, 2015
Is my Photon bricked? Troubleshooting	18	3780	May 9, 2017
[Photon] Unable to flash new code Troubleshooting	54	7836	July 16, 2015

Can anyone help me recover my Photon?

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