C4 hub won't start after updating to 2.3.5.105

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1

I just applied the update from 2.3.4.xxx to my C4 hub and now it won't restart, I did a power-cycle and still nothing. Not sure what to do next.

I did download a fresh backup before the update.

Ironically my C8 was delivered just now, hours after my C4 crashed.
@gopher.ny I see you've been helping people, I'm sure you're busy with C8 questions but how do I get my hub back so I can upgrade?

2

What color LED do you have? If you don't have any, could need a new power supply.

3

I see no LED on it, there is a blue LED on the zwave dongle.
I tried hitting the IP with :8081 and no response.
Thanks.

4

Please try an alternative power supply. I hope it's the external power issue and not internal. We have seen a few cases of C4s going out in this fashion. The update was just a coincidence.

5

I'm not sure I have a compatible power supply but I'll put the multi-meter on it and see if the PS is working. (Just sent a email to support btw)
As I said above, it does have a blue light on the ZWave dongle so it is getting power.

6

The question is if it gets enough power to start everything else.

7

Pretty much any phone charger will work with it

8

MultiMeter shows 5.3v from the power adapter.

9

Woah! I left it unplugged for 5-10 minutes (previously was ~1 min) and it restarted OK.
Yes!
Now I will get to work migrating to my new C8.
Is there a guide for that since I can't do the cloud backup from the old unit?

1 Like
10

Look through the forum for the steps to go from C4 to C7.

This link might help you out migrate

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11

Thanks, I found this thread also

And like that responder said there are likely lots of threads on c4-c7 upgrade which are applicable.

12

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