Replacing a ISY994

[oskrypuch]

OK, my old ISY994 was continually rebooting. I purchased a replacement (now with the Z-wave module), and I have read the wiki to migrate to a new unit, pretty straightforward.

I did put in a request to support by email, to transfer my modules.

BUT, here is my question. I was running a stable v4 firmware, the new unit comes with 5.0..13D. I understand that there can be some issues in moving the programs from v4 to v5. I have a complex setup, and I'm not sure I want to make the jump right now. Am I able to downgrade the unit to 4.7.3, and if so, is it anything more than just downloading that firmware to do a "manual" upgrade?

Or, should I just restore my old setup to the v5 environment, and see what happens, if that is even possible?

OR, does the restore actually change the firmware too?

* Orest

[mwester]

The only thing that might require you to use the newer firmware is if your new ISY includes the newer z-wave module.  If it has no z-wave, then it'll run whatever firmware you want.

The correct procedure would be to load the desired firmware (making sure you are using the matching UI version), and then restore your backup.

[kclenden]

I'm pretty sure that you can't restore a v4 backup to a v5 system.  So either you're going to have to upgrade your old system to v5 and take a backup (assuming it's stable enough) or you're going to have to downgrade your new system to V4, restore a backup, then either continue using v4 or upgrade to v5.

[oskrypuch]

No, the old module is seemingly not stable enough, and I wouldn't trust it at the moment, and not that keen on moving to v5 right now anyway. Just want to get the system back up and running.

My new ISY DOES include the Z-wave module.

Where do I get the old firmware (and UI), can't seem to find it in the forums. Will the v4 firmware just ignore the Z-wave module, or will that cause an issue?

* Orest

[oskrypuch]

So, the big question, can you restore a 4.7.3 backup, to a unit running 5.0.x?

Does someone know definitively?

* Orest

[oskrypuch]

On 4/29/2019 at 2:26 PM, oskrypuch said:

So, the big question, can you restore a 4.7.3 backup, to a unit running 5.0.x?

Does someone know definitively?

* Orest

The answer is YES. Just did successfully -- kind of sort of!

Curtains went crazy, some routines started looping wildy, I guess the known issue of the loss of the [Not Enabled] flag on upgrading to v4. Only some programs were affected.

* Orest

 

[MWareman]

If it’s the newer zwave module, then you cannot run v4 on the ISY.

[Michel Kohanim]

@oskrypuch,

Isn't the new ISY rebooting?

With kind regards,
Michel

[oskrypuch]

@Michel Kohanim

The new ISY is now working perfectly. No reboots, at all, even when I first started it up after the restore.

The big issue with the transfer was that I have a lot programs purposely set to disabled, and they are called from other programs that trigger for certain conditions. The called program parses it further, but when not disabled, the IF clauses react to the conditions more often than they should. About 10% of the Not Enabled programs, were left without that Not Enabled state. There were a few scenes that had to be recoded as well, but that just caused an INOP situation.

It was a bit of a pain going through some 8000 lines of code to compare it all and fix it up, but the upgrade to v5 (and to the new unit) is complete now, and all is working perfectly. It looks like the old unit needed a replacement, perhaps some failing memory or something.

Nice to have my Smart Home back.

* Orest

[Michel Kohanim]

Hi @oskrypuch,

Thanks so very much for the update and I am so very sorry you had to go through this exercise.

With kind regards,
Michel

[oskrypuch]

As always, thanks, but looks I spoke too soon!!  

....

 

[Michel Kohanim]

@oskrypuch,

That's what I was worried about. ISY hardware failure rate (at 5 years) is still less than 0.01%. And, the majority of that is the SD Card. I would go back and look at programs that might be in an infinite loop.

With kind regards,
Michel