Bricked my D2 Charlie while trying to flash the Fenix 5 X firmware. Can I force firmware on it with a jtag flasher or sth the like?

Yeah, but no that did not work either...

Yes, have the exact same state. I even tried it on bootcamp on a macbook. If you bring the watch into the mode where it shows up as a Garmin USB GPS (keep holding the start button), the webupdater or bootcamp recognize the device, connect to Garmin and download the right firmware (8MB in my case). Then they attempt to flash it but interrupt with a faulty firmware message. You have to keep holding the startbutton throughout the whole time. As soon as you let go of the start button, the device directly switches off agan and goes to the boot cycle...

Another symptom I have, sometimes the device does not want to come on anymore at all after laying around for some time (hours). Then you can get it back to the boot cycle by charging it or pressing all four buttons in the 4 corners of the watch. I guess sometimes the battery is just empty after that constant booting, and in the cases where it was reviveable by pressing the 4 buttons only it was maybe just stuck. But anyway it just brings you back to the bootcycle.

I do hope you get this resolved but I have to say that I find it amazing how you make statements about what an expensive watch it is, how Garmin needs/should fix this etc etc.  yet you start the thread with “ I found a firmware in the internet...”.  I’m hard pressed to think of of any other scenario that would give a company more of a reason to say “too bad”, even if under warranty.  If Garmin gives you a reasonable replacement at a reasonable cost I’d say they really stepped up and you are lucky.  Not too many statements that start with “found this firmware in the internet” end up well. 

Obviously you are right, I am aware of what exactly I did. And I would not have blamed them for not helping me too much.  Also would have bought Garmin again, because it was a great watch. At the end it´s a computer, and the frustrating part is that it has to be thrown away, even if it is not mechanically broken. I develop electronics myself, and I know it can be designed in a way to still be able to get it up and running again, because it´s a high end product. Would have just been nicer.

I nowhere said they have to or are obliged to fix it for free. I´m happy if they help me, and I publish it here so other people see what can happen.

What would be bad at their side is, that if I could not get a repair for it, because this model is not in their repair/replacement program anymore. It is not that old. Basically this is the fact now, but thats why the paid upgrade is now on the table.

You wouldn´t like to buy a car, a Mercedes for that matter, then have a crash after 3 years and learn that they could´t repair it anymore because some part of the control system has been taken out of production.

This belongs to the customer experience, but let´s hope they find a reasonable solution.

Michael, all of us reading what happened knew this was just "too bad", just didn't discuss it here. Obviously he is aware too. And I also think that if you do wrong with software the device should be "repairable / re-flashable", because hardware should still be OK, obviously we just do not have the right tools for it. And it is a challenge to resolve it somehow.

@Useramuser, have you tried to get the webupdater, which did not check version?

I think not, because I just used the webupdater from Garmin on 3 different computers. Now I don´t have access to the watch anymore, but DMRugh could try it. Where can this webupdater be gotten?

Yep - you are right and I apologize to Useramuser as I know I came across a bit strong - and Useramuser, your response to my post was very fair and made it clear that you do realize that it was probably not the best idea in the first place.  I suppose I read too many posts from people who do not take responsibility for their own actions (not just on these forums).  I do hope you get it worked out!

Doktorko said:

And I also think that if you do wrong with software the device should be "repairable / re-flashable", because hardware should still be OK,

I think it's also a question of security reasons. If Garmin allows that everyone can installing doubtful software, it's possible to install malware. E.g. with the next sync, the malware can infect GC.

Of course CIQ apps can be installed, but they run in a sandbox and they doesn't have direct access to the native functions.

No worries, and thank you! I actually was searching again if I came in too bold.
So I did not want to misrepresent my part and thats why I wrote it out clear that I bricked it by doing off the page stuff. I also told that to the support people. I was ready to pay for it, and was annoyd about myself.

The slight discomfort I got in the phase where it came out that I would not get it repaired for money, because the repair program for the charlie is over. This would have not been the case with a 5x I guess, because that is sold in much higher quantity. But the pilot watches are thinly spread. So the watch is around 2.5 years old, and a premium variant of the 5x. It would be good practice to offer people repairs especially after this not so long timespan.

Stuff can break even after warranty and if it is not your fault, so if anyhow possible, it should be able to get it repaired. So now when they upgraded me to take part in the Delta repair program, it is actually a gift from them, because I did not have the delta. But I think it is fair to not leave me hanging there dry and to offer me this as a repair solution as opposed to "throw it away".