Moving the Steam authenticator to a new phone

the only way i'm aware to get around that 7day block would be if your phone is rooted.. if it is, titanium backup the steam mobile app with data, and restore to another rooted phone.. any other method of backup/restore won't get the proper data.

I switched phones (same number) and got no trade lock.
I used the "Please help, I no longer have access to my Mobile Authenticator codes" or something like that to send an SMS (to the new phone with the same number) and activate steam guard on the new phone.

Don't really remember step by step how I did it, I think I also had to use the unique code you were given in case you lose access to your phone.

I don't remember what steps I took, but I don't think I received a 7 day trade lock. I kept the same phone number and switched phones and providers.

Use your old phone to deactivate steam guard.
Install steam in your new phone and activate it again.
only drawback: temporary trade ban.

I don't know anything about it, so have a bump instead

The official method you mention in the OP is exactly what you wanna go with then,

No tradelocks, no wait periods; basically instantaneous and surprisingly simple.

I moved my authenticator from my broken phone to my fiance's phone temporarily and then back to my number like a week later (when I finally picked up a new phone) without any hastle whatsoever.

I believe (though not completely certain) that the results are still the same for any switch where you've lost access to the original number, but I never personally had to deal with that (from what I recall) since I just swtiched around micro-sim cards setting things up and then it worked flawlessly--only carrying about the device ID regardless of the active sim.

Even without specifically having trying it, I'm fairly certain that all goes through just as perfectly (and absent any holds) if you were to just use the recovery code instead (and/or switching the associated account number to the working number, but I think the first part might still just be all it takes)

bump

I did however I had both phones at hand. I just signed in to Steam on the new one, and then signed out on the old one and deleted the app. I was not locked out of trade and all.

Its 15 days and im suffering it atm

I did it a month ago or so and I had a 15 day ban. This whole proces is worked out soo bad imo. Like Valve expects everyone to walk around with the same phones forever.

I did it like month ago or so. I do not remember steps correctly but i didnt get any hold.
Download Steam on new phone and login
Uninstall on old
Move sim from old phone to new
Confrim new phone as new (only) device to recieve confrimations
Confrim it by sms, its ur phone

No trade hold for me. (from G3 to OnePlus 3T for ones who are into phones)

bumping for visibility