# Zen 51 firmware 1.80 - issue with Z51's LED **URL:** \ **Category:** Smart Relays\ **Created:** [January 13, 2025, 8:39pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418 "2025-01-13T20:39:39Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![hydro311](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/hydro311/32/71_2.png) [@hydro311](https://www.zoozcommunity.com/u/hydro311)\ **Post date:** [January 13, 2025, 8:39pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/1 "2025-01-13T20:39:39Z")
Hi Zooz! I just updated my Zen51 with f/w 1.80 – all of that went very smoothly on my Hubitat. Everything seems to be working great _except_ that my Z51’s LED no longer comes on with the relay. I have triple-checked my parameter #1 setup (it’s set at 1), and even tried cycling that parameter from 1 → 0 and back again in hopes that would shake it loose, but no joy. I suppose it’s _possible_ that my Z51’s LED died, but it was working last night (when I happened to be doing some unrelated checks that involved monitoring that Z51’s activity). Curious if this is something you can reproduce on 1.80? Thanks very much! ---
**Author:** ![Sara](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/sara/32/26_2.png) [@Sara](https://www.zoozcommunity.com/u/Sara)\ **Post date:** [January 14, 2025, 2:11am UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/2 "2025-01-14T02:11:28Z")
Thanks for reaching out! Would you be able to confirm the production firmware on the ZEN51? This is printed on the back of the device; since we haven’t had any other reports, we’d like to check the original firmware to be sure we are testing accurately. Can you also please let us know what firmware you were on when you updated to 1.80? ---
**Author:** ![hydro311](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/hydro311/32/71_2.png) [@hydro311](https://www.zoozcommunity.com/u/hydro311)\ **Post date:** [January 14, 2025, 3:01am UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/3 "2025-01-14T03:01:17Z")
Thanks Sara! This is a Z51 that I’ve had in service for years now (I bought it when they were first released, IIRC). It’s been a great performer – I’ve keep up with all the iterative firmware updates, so I made this jump to 1.80 from 1.70. The relay itself works great on 1.80, I just found it odd that the LED no longer comes on when Param 1 = 1. This is very admittedly a 1st-world “problem” - that LED working is not any kind of showstopper for me. I was more just curious if that is something you folks (or any other fellow users) are able to reproduce it on 1.80. As I mentioned in my OP, I happened to be utilizing that Z51 as participanting device in a new automation build last night (though no parameter changes to the Z51 itself), so I was watching its operation – the LED was working fine on 1.70 last night (on with relay on, off with relay off). Had I not just verified its operation last night, I would not be nearly as confident that this LED issue has something to do with 1.80, but the timing seems otherwise too coincidental. Thanks again very for your time and help! Edit to add – other than trying to cycle Param 1 (it’s now confirmed =1 again), I didn’t make any parameter changes when I updated to 1.80, and I’m using Jeff Page’s latest Hubitat driver for the Z51 (which is what I’ve always used for this relay). ---
**Author:** ![Sara](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/sara/32/26_2.png) [@Sara](https://www.zoozcommunity.com/u/Sara)\ **Post date:** [January 14, 2025, 5:11pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/4 "2025-01-14T17:11:52Z")
Thank you for those details! Our technicians have pinpointed an issue with the original production run (base firmware 1.10) being updated to 1.80. They’re working on a quick update that should fix this. We’ll reach out once the fix is ready, which should be shortly! ---
**Author:** ![hydro311](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/hydro311/32/71_2.png) [@hydro311](https://www.zoozcommunity.com/u/hydro311)\ **Post date:** [January 15, 2025, 1:09am UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/5 "2025-01-15T01:09:21Z")
That is fantastic news - thank you so very much! ---
**Author:** ![Sara](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/sara/32/26_2.png) [@Sara](https://www.zoozcommunity.com/u/Sara)\ **Post date:** [March 20, 2025, 1:01am UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/6 "2025-03-20T01:01:49Z")
I wanted to reach out with an update. After working with our engineers, they have confirmed that they will not be able to implement a firmware equivalent for 1.80 that would apply to the 1.10 base units. This is due to the hardware change that was made on the unit with 1.30. We do have some warranty options available for you, so please [reach out to our team directly](https://www.support.getzooz.com/new) and we’ll get it taken care of for you! ---
**Author:** ![hydro311](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/hydro311/32/71_2.png) [@hydro311](https://www.zoozcommunity.com/u/hydro311)\ **Post date:** [March 20, 2025, 2:04am UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/7 "2025-03-20T02:04:43Z")
Hi Sara! Thanks for the update and the kind offer. Until all this happened, I hadn’t ever realized there was a hardware version update at some point after the Z51’s original launch. Honestly, outside of the LED issue, mine’s working perfectly fine on 1.80, so unless there’s some _other_ reason I should either downgrade (I could - I still have the older f/w file) or pursue a warranty case, I’m totally cool with how things are. The LED thing is not a big deal for my use case. You guys did me an above-&-beyond solid a while back by replacing a Z36 battery pack that was out of waranty, so I don’t want to take any unnecessary advantage of your good-faith support offers - I can live with my Z51 as-is. Thanks again for your help and the follow-up! Cheers, Chris ---
**Author:** ![hydro311](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/hydro311/32/71_2.png) [@hydro311](https://www.zoozcommunity.com/u/hydro311)\ **Post date:** [March 22, 2025, 8:26pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/8 "2025-03-22T20:26:12Z")
@Sara FYI - there seems to be an issue with the Z51’s v1.80 ZIP file that’s posted on your OTA page… When unzipped, it opens a file named "ZEN51\_V01R80..gbl " – note the 2 periods in the name. Strangely, I’m not able to edit the file name in order to remove one of those periods. I didn’t notice if this happened when I tried the 1.80 f/w update earlier – I mistakenly permanently deleted my copy of that file, so I was just making another one for my records here when I noticed the 2-period issue. ---
**Author:** ![Sara](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/sara/32/26_2.png) [@Sara](https://www.zoozcommunity.com/u/Sara)\ **Post date:** [March 27, 2025, 12:35am UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/9 "2025-03-27T00:35:03Z")
Hi Chris, thanks for catching that! I’ve forwarded that info to our team for editing 🙂 ---
**Author:** ![hydro311](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/hydro311/32/71_2.png) [@hydro311](https://www.zoozcommunity.com/u/hydro311)\ **Post date:** [March 28, 2025, 8:26pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/10 "2025-03-28T20:26:55Z")
Hi @Sara I did end up replacing my original-model Zen51 with the latest version (received today from TheSmartestHouse)… I just loaded v1.80 firmware, and LED issue I described in my first post still applies with the new-model hardware too. I have the LED set to come on with the relay, and it’s not (the relay switch works great, so no problem there – just the LED). The LED works fine on 1.70, so it’s an issue with 1.80 Apologies if you already knew this, but this thread otherwise seemed to imply the issue was perhaps unique to the original-model Z51. Thanks again and have a great weekend! Cheers, Chris ---
**Author:** ![Sara](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/sara/32/26_2.png) [@Sara](https://www.zoozcommunity.com/u/Sara)\ **Post date:** [April 1, 2025, 5:07pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/11 "2025-04-01T17:07:13Z")
Hi Chris, thanks for those details! We have not had anyone else report the LED behavior, so that’s a new one! I’ll have our team check it out when we are back in office next week (currently as the ISC-West Trade show in Vegas). I’ll update you as soon as we have more info; we appreciate your feedback and assistance! ---
**Author:** ![hydro311](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/hydro311/32/71_2.png) [@hydro311](https://www.zoozcommunity.com/u/hydro311)\ **Post date:** [April 1, 2025, 7:26pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/12 "2025-04-01T19:26:28Z")
Sounds great - Thanks Sara, and safe travels! ---
**Author:** ![Sara](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/sara/32/26_2.png) [@Sara](https://www.zoozcommunity.com/u/Sara)\ **Post date:** [April 4, 2025, 8:52pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/13 "2025-04-04T20:52:52Z")
My pleasure, Chris! Our remaining techs in office were able to replicate the same issue, and it appears to only occur when the device is added to the hub, which is why no one else has reported it yet :). We should have beta firmware available here in the next few days, so I’ll reach out with a link to that and it should resolve the LED issue for you. ---
**Author:** ![hydro311](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/hydro311/32/71_2.png) [@hydro311](https://www.zoozcommunity.com/u/hydro311)\ **Post date:** [April 4, 2025, 10:52pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/14 "2025-04-04T22:52:44Z")
So much #winning! That sounds awesome - thank you very much, Sara! ---
**Author:** ![Sara](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/sara/32/26_2.png) [@Sara](https://www.zoozcommunity.com/u/Sara)\ **Post date:** [April 8, 2025, 4:29pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/15 "2025-04-08T16:29:15Z")
Hi Chris! I had an update from our techs and we have a beta firmware available if you’d like to try it. Since it’s beta, please reach out to our [support team directly](https://www.support.getzooz.com/new) and we’ll send you the file 🙂 ---
**Author:** ![hydro311](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/hydro311/32/71_2.png) [@hydro311](https://www.zoozcommunity.com/u/hydro311)\ **Post date:** [April 8, 2025, 9:41pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/16 "2025-04-08T21:41:49Z")
Just tested out the beta firmware, and it’s working great so far – I let Nikke know too. Thank you very much! 🙌 ---
**Author:** ![Sara](https://yyz1.discourse-cdn.com/flex003/user_avatar/www.zoozcommunity.com/sara/32/26_2.png) [@Sara](https://www.zoozcommunity.com/u/Sara)\ **Post date:** [April 8, 2025, 9:52pm UTC](https://www.zoozcommunity.com/t/zen-51-firmware-1-80-issue-with-z51s-led/418/17 "2025-04-08T21:52:11Z")
Excellent, thank you Chris!