02-10-2022 19:16
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02-10-2022 19:16
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I just got a FitBit Versa 2 Version 35.70.714.
I was able to connect it using development bridge. The same thing with the phone. I'm using an Iphone13 mini.
When I try to run a sample app on FitBit studio, I get the the following on the console
Sideload of app failed. Connected device does not support API version requested by app.
The way I understood it is that the Build went fine but the installation did not. By reading around it seems like I have an old version and thus an older SDK. Do I have to update my device manually or will I get the update soon(some time from when I first turned on my device, aside from the initial one that was made).
Answered! Go to the Best Answer.

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02-10-2022 19:32
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02-10-2022 19:32
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Hi @ac_devel - it seems your watch has an old/initial OS version, the latest is 35.72.1.15.
The cause may be a factory reset and/or the setup didn't run properly to install the latest firmware version.
You can wait a few days and often a new version can be presented. If not contact Fitbit support and they can schedule an update.
If your watch is working fine otherwise it may not be a good idea to do a factory reset, as that might not always work and then you may have a dead watch that can't be used anymore.
Author | ch, passion for improvement.
02-10-2022 19:28
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02-10-2022 19:28
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It can take up to a couple of days before you're offered a firmware update. Make sure your Fitbit mobile app is the current version, so it will know of, and work with, the latest watch firmware.
Gondwana Software
02-10-2022 19:32
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02-10-2022 19:32
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Hi @ac_devel - it seems your watch has an old/initial OS version, the latest is 35.72.1.15.
The cause may be a factory reset and/or the setup didn't run properly to install the latest firmware version.
You can wait a few days and often a new version can be presented. If not contact Fitbit support and they can schedule an update.
If your watch is working fine otherwise it may not be a good idea to do a factory reset, as that might not always work and then you may have a dead watch that can't be used anymore.
Author | ch, passion for improvement.
02-10-2022 19:49
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02-10-2022 19:49
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I see. I may have to resort to using the simulator in the meantime. I was surprised I didn't get the latest FW as soon as I turned on the device and had it online through WiFi
02-10-2022 20:46
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02-10-2022 20:46
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@ac_devel - normally during the setup of a new watch when you run " Set up a new Device" in the Fitbit App it should download the latest firmware.
Is this a new watch, and what happened during setup that missed that step,? Any information could be useful.
The simulator is good for testing many things.
Author | ch, passion for improvement.

02-11-2022 10:24
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02-11-2022 10:24
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When I got the device, I turned it on and connected to the App. It did start the update through WIFI but it was short time update. I saw at some point that the device lost connection to my phone for a while but it kept on going and no "FAILED" update error was shown so I assumed it went on fine. However I proceeded on putting on the watch and skipped attaching it to a computer (I assumed it really does not matter since all watched I had so far would download updates through app). I reached out to the support and even them see that there is no update available and also told me that it may take a couple of days to get the newer FW.
I will give it until tomorrow and it I don't get the update, I'll ask if I can return it and get either a Versa 3 or a different Versa 2. For development, I'm using simulator but I would really need a device to feel some vibrations.

02-11-2022 11:46
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02-11-2022 11:46
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@ac_devel - thanks for the info, odd that it didn't succeed with the firmware update. It's one way to revert back out of a recent firmware upgrade that is problematic if one can do it. Unfortunately it takes you back to square one and no possibility to add a later update, only the latest.
Vibration is one of the Simulator's weak points unfortunately, and it's good to have a real watch to test on for the intended usage. But most of the time it does a great job.
Author | ch, passion for improvement.

02-11-2022 12:24
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02-11-2022 12:24
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In my specific case, I didi a factory restart, removed FitBit from my app and fitbit.com.
I re-did the process to zero. This time, I kept the fitbit connected to the laptop and kept phone and devices close and did not move anything. (Yesterday I was walking aroung with both). It did take on the the OS and then moved to installing the newest FW. I can now run the app on my watch! Thanks!!!
To summarize:
- When device is new, keep it charged (connected to computer)
- DL the app and connect device to app.
- Start update: keep watch close to phone.
02-11-2022 12:28
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02-11-2022 12:28
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I love a happy ending. 😉
Gondwana Software
