Hmm, looking at my old notes here I wrote down a 12-word combination under the title 'ELECTRUM', so I'm pretty sure that's the seed, but you say 16 secret characters? Not words?
The 12 words seed phrase is enough for the recovery if you bypass the 2FA.
But if you do not need to bypass the 2FA, you will the 2FA backup code which are 16 characters. Another thing is that if you are able to have access to your wallet and be able to spend from it after the upgrade, just the 2FA can be needed to move all your coins from the wallet. But if you have the seed phrase, you do not need this.
Unfortunately, I haven't...
Not unfortunately because it is not secure and not recommended. Best is to backup the backup code offline in two or the different locations.
Oh, I see.
I don't have the 16 characters, but the thing, I'm still using the same phone. It's just that I'm running iOS 15.8 and the phone wants me to update the app. Should I just go ahead and update and see if the codes are still there?
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Not unfortunately because it is not secure and not recommended. Best is to backup the backup code offline in two or the different locations.
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Yeah, I don't like online storage. That's why I write everything down on a piece of paper by my desk. The problem is it's been such a long time I don't remember everything and I'm scared of messing up and losing my life savings.