Neeh help setting up new device. IMEI not working, phone is listed on compatabliity list. ASUS Zenfone 9

Double check the IMEI number here

https://www.att.com/buy/byod/identify?devicetype=phone

If the IMEI check does not offer to send you a SIM card then the phone is not included in AT&t's IMEI list. This may be the wrong model number that you have purchased, or that the manufacturer did not include a comprehensive list of IMEI when it got there phone whitelisted. 

You say you're setting up a new device:

Do you already have existing AT&T service?

Do you have a physical SIM card from a previous device that did work on AT&T?

Have you moved that SIM card from the old device to the new one?

If you are a brand new AT&T customer have you inserted the SIM card that was sent to you or that you purchased and gone through the process of activating sim and service?

Odd since its on the compatability list. The ASUS Zenfone 9 is definetly on there. So not quite sure why this would not work. I have ran the provided IMEI numbers through the https://www.att.com/buy/byod/identify?devicetype=phone website and they say its not compatable. I also tried putting my sim from my S9, which it said the SIMs Network did not work with it.

@dankcik09 

There are apparently several versions of the Zenfone 9, an A, B and C version.  C is for the U.S. as best I can tell by searching in the internet.  I'm not sure if there are different model numbers for each version beyond the AI2202 that I keep seeing, but you could have a different "version" that's not compatible. 

Did you check that the model number matches at least?  Can't go just by the name.

Asus sold a global version and US version.

The US version was more expensive.  Bet you a quarter you bought the global. 

I wouldnt doubt that at all.

Here is the Ad
https://www.ebay.com/itm/195274507360

Yeah if you read down under 'store policy' it does indicate that this phone is an international model and not a USA model.

this is the response from the ebay seller. I tried placing my old SIM into the new Zenfone and the Zenfone wouldnt allow it saying the network wasnt supported.

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you need to insert sim card that was already been activated before
for example: if you insert new sim card , activate it on your old phone/dummy phone
you can test it with used sim card (family / friend sim card)

don't go to the store and try to activate new sim on this phone.

this is international model , they checking USA imei database so you getting wrong info.
plus they prefer to sell you their own phones.
you just need to active the sim card on a different phone, then insert it to the new phone.


on the online activation process you can choose to skip imei for later
(or type your old phone imei)

try T-mobile connect, offer great price ($15/mo) or Mint


can use the AT&T app to provision IMEI
scroll down to the button 'Bring your own'

Chat with technical support ONLINE (not over the phone)
tell them to provision your device imei match to your sim card and active VoLTE,
because your phone capable of VoLTE.

ATT tech got it working. They had to remove any IMEI blocks and i just palced my previous phones sim into the ZenFone while it was off, when I turned it on it worked. Fantastic!