Saturday, November 11, 2017

Selling or retiring an iPhone -- I hope you disconnected Google Authenticator and Google Prompt first.

Wipe that iPhone to give to your child or sell? I’m sure you remembered to launch Google Authenticator and remove the device from your trusted device list before you erased all …

Using a new phone to receive 2-Step Verification codes - Google Account Help

… On your old phone, open the Google Authenticator application…

Oh, you forgot about this step? You are clearly inadequate.

There’s hope though. Assuming you have a computer, there’s another option hidden away …

Add or remove trusted computers - Google Account Help

… Under “Devices you trust,” select Revoke all...

Except that’s not a bit misleading. There are more options once you sign into you Google Account and dig through the “Sign-in & security” section, select Signing in to Google, and Choose 2-step verification.

There you can remove the “Google Prompt” iPhone that manages authentication via Google App. That flips authentication to an Authenticator app (OTP authentication with RFC 6238 and 4226). The Authenticator app might be Google’s, a 3rd party, or 1Password or another password manager. I use Google’s because I started with it and I’m lazy.

You can also “change phone” on Google Authenticator. Authenticator is working for my new device though — which was restored from a 6s backup. So I didn’t do that immediately. 

Instead I removed the Google Prompt device, since that was still going to my (since erased) 6s. Then I added it back to my new iPhone 8. Google had the 8’s name so I authenticated there. 

Then, because I’m a paranoid sort, once I had Google Prompt working, I went into Authenticator on my i8 and removed my Google account then setup authenticator again from the 2-step verification page (scan barcode).

I’m sure everyone knows to do this. Otherwise why would pundits keep telling us to enable 2FA on every service we care about?

PS. I think when you authenticate within Safari for iOS Google can’t identify the host device. So my https://myaccount.google.com/device-activity list shows both “John8” (my current iPhone) and “Apple iPhone” — even though I believe they are the same thing.

PPS. I think if you want to be very careful you really should do the “Revoke all” as I suspect the old device Safari authentication can still be an issue (except I erased it, but if you’re paranoid …)

See also

Saturday, November 04, 2017

The Internet Lied: Apple's 3.5 mm to lightning adapter does support audio in -- for Apple's EarPods.

I was deceived.

Prior to buying my iPhone 8 I read that Apple’s 3.5mm to lightning adapter didn’t support audio in for earphones with a microphone. Not so! It works quite well with Apple’s EarPods.

It probably doesn’t work with other earphone microphones though. Apple’s EarPods have a different arrangement for the audio-in connection from some other earphones. I looked into this years ago and it wasn’t clear to me how much of a standard there really was. I dimly recall that Apple, shockingly, was different from most.

Friday, November 03, 2017

Did iOS 11.1 (partly) fix iTunes photo sync?

I’m back to wired sync for photo transfer after giving up on iCloud Shared Albums. The simplicity is a relief — except with 11.0 it wasn’t working well. Out of 8300 images in Aperture I was lucky to get 6200 to sync. Sometimes repeated sync brought over a few more, other times I was stuck.

With 11.1 I got them all. 

I still can’t get iTunes WiFi sync working though.

PS. I finally found some use for my iPad Air 2. I set it up at work without a network connection and play on device music and randomly display family album images using LiveFrame.app. I use MindNode.app to organize projects. It’s still marginally useful but that’s progress.

Update 11/3/2017: I think WiFi sync is working now.