The FIDO2 applets includes all the old U2F functionality and supersedes the U2F applet. It is backwards-compatible to services using the U2F standard. I recommend going with the FIDO2 applet, this gives you the maximum compatibility.
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Awesome! I went ahead and upgraded to FIDO2, but I was out of room so I had to delete a few things. When I did I noticed there wasn’t an option to reinstall the BIP32 Wallet. I don’t use it, but it’s just strange that it’s no longer an option. Any ideas what might be going on? It’s not a big deal, I’m more curious.
Thanks for your input with FIDO2!
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Fidesmo is adjusting a lot of the recipes for applet deployment so I’ll resubmit to ensure it’s an option again soon.
It appears that Fidesmo is going through some unexpected issues with their platform which is blocking deployment of some applets. They have been made aware and they are working on it.
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Is manual deployment still possible?
Using the codes you posted (quoted below)
So I started playing with my implant since the swelling went down and it’s not hurting. I was testing out the applets installs again and still can’t install fido2…it at least tries now but still failes saying not enough space even when nothing is installed. Since on iPhone and don’t have apex manager app yet I started playing with the yubikey Authenticator which works great for otp codes. Any other substitute apps that I can play with for now? I also have a flipper can that be used to write to these in anyway?
I’ll test on my shiny new used iPhone SE purchase and contact Fidesmo with log data
I have the log data from mine if that will help too. Copied it so I could look at it as I’m the curious type lol
Cool could you post it? It should contain nothing of concern with regard to privacy. If you’d rather though, you can DM me with it.
Actually I’ve asked them to just post the data as a text file upload.
I deleted the posts and sent the text file. Sorry bout that guys wasn’t thinking earlier
How many FIDO2 residential keys can Apex Flex hold? Is the number different for FlexSecure? Can the RKs just fill the available storage or is there some kind of per-applet allocation going on?
With the push towards passkeys these implants are looking more and more interesting to me.
Some context: Firstyear's blog-a-log
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Luckily Apex will have the ability to store quite a large number of keys (>100) if you allow enough storage space and don’t fill it up with other stuff. Each resident key will take up about 250 bytes more or less, so you can do some basic math on that.
The fido2 applet code also does not define slots but instead parses available memory. If no memory is available it returns CTAP error KEY_STORE_FULL.
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Was there any word on the fido2 being updated on Fidesmo iOS? Haven’t tried it since I sent the logs.
no update 
Ok well thanks for answering. I’m going to try it from an android phone and see if it works to deploy
Xandie
Please keep us updated
I have the same problem with 2 Apex Flex’s doing the same thing.
Fidesmo is working on a workaround. Basically the issue is apple iPhone… they limit an NFC session to a very short amount of time. This means large data transfers will time out. They have tried to break deployment up into smaller chunks but some chunks can ot be split.
Basically this is an Apple problem. The solution may just be to borrow and Android phone to do deployment.
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Yeah I ended up using a friends android worked perfectly