Using hub c7 running platform 2.3.9.166 on local google mesh network. Phone is samsung s24 ultra.
I purchased a kwikset home connect 620 lock and intended to use smartstart for install but the smartstart option is not available when following the instructions in hubitat documentation.
You appear to be using a mobile browser, and not the Hubitat app? You must use the Hubitat app to add devices via Smartstart.
There are some basic instructions here under the ZW-LR section about 1/4 of the way down the page Add Device | Hubitat Documentation
The workflow on the old app vs the new app is slightly different as to where Smartstart is located, so we would need to know which you are using to direct you to the correct spot.
Thanks for quick reply.
I am using the hubitat app which I've been using for several years. Tried the new app but it crashes with message from android stating it has a bug.
As mentioned above, you're definitely not following the instructions in the documentation if the screenshot you provided is supposed to provide evidence for that claim. 
You do need the app, not the web interface (unless you have the entire DSK and want to input it manually using a third-party app or HTTP endpoint, technically also an option...).
Can you provide the specific error you see?
Also, what hub platform version are you running? Check Settings > Hub Details to see.
If this app works for you, you can still use it. The docs you read have instructions for both versions--the option is just in a slightly different spot.
On the main page of the app does it say your hub is local or cloud? Is has to be local then go to devices tab. Tap the + then smart start.
local. The arrow keeps going - i pressed + again & the Smartstart showed up. But now - what do I do : scanning the 2-d code on the right side of the the lock does nothing, scanning the one on the left shows some text and PENDING & never finishes. If I select manual - it opens a bunch of things to check _ i have no clue what to add?
Security 2 class 2 - checked
security 2 class 1 - not checked
security 0 - checked
Boot Mode
S2 Boot - unchecked
SmartStart - checked
Long Range - unchecked.
Are these good for Generic Zwave lock setup which Kwikset appears to use in its all locks without writing about it?
After saving it - it shows 'not included, pending" And it shows the name & location I declared in Smartstar.
What to do next?
DSK - what to fill there?
Factory reset the lock (usually does the next thing, but some devices are weird) or do a general exclusion on the lock. Then, power cycle the lock (remove batteries and re-insert or whatnot) just in case. Leave it in Smart Start like you probably still have it, and see if it eventually includes. If you've modified any settings/checkboxes in the Smart Start entry, I would not recommend that and would suggest removing and re-scanning.
To do the general exclusion, follow the process documented here: How to Troubleshoot Z-Wave | Hubitat Documentation
Also, what does your Z-Wave network look like? Lock work best with (beaming) repeaters, so if it's just your hub and a bunch of non-repeating nodes like this, adding one could help.
Thank you all. My network is empty. The Kwikset620 was the first device to be included.
The Kwikset was reset number of times. I does include without problems on VERA hub. I exclude it fro Vera and any attempt to include on Hubitat fails. Kwikset people blame it on Hubitat.
I bought another Kwikset 620 and it included on Hubitat at first try as Zwave Generic Device and works. I tried to include the resistant Kwikset 620 and it failed. It must be jinxed. Smartsetting did not help as it wants to know the settings for DSK - I have no clue what that is.
Question to jtp10181: Would including new Kwikset 620 using your Smartstart yield a different more detailed inclusion?
The QR code should have all the information the mobile app needs for Smart Start. It should never ask for specific "grants" or other information unless you manually navigate to the page to edit that information, which I would again not suggest.
However, if you're having problems with Smart Start, I would simply try a classic inclusion. Do that from the "Add Device" page on the hub interface (technically accessible from the mobile app too, but really not necessary and IMHO better done on a larger screen): Add Device | Hubitat Documentation
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