[ASUS ROG Phone 5 / 5s] Mark-7:
tl;dr - I was able to get my ROG phone 5 working on Verizon in the US. I thought I'd let people know of my success and give a rough guide, but won't be able to support a lot of follow-up questions. Also, if this doesn't work for you, sorry - I'd not go out and buy this phone just on the basis of this post, but just relaying my success and saying that it's confirmed possible.

Rough steps:

Get a ROG 5 from US Store. Others might work, but the model I have is ASUS_1005DC

Add HD Voice and CDMA-Less Provisioning to your account either via Customer Service or VZW Corporate store.

Get a 5G SIM from a Verizon Corporate store

Provision the 5G SIM in something that the VZW system will accept, to get it associated with your account. (iPhones work great).

Set up your ROG 5 (both in the sense of Google, and then dial *#*#3642623344#*#* from your phone app's dialer and then going into settings and turning on WiFi calling and 4G Calling.

Insert (or pop-out-and-then-back-in) your SIM card (Slot1).

Hey all -

I'm posting here (after a bunch of lurking) to let people know that I got my ROG Phone 5 working on Verizon Wireless (VZW)- as far as I can tell everything works (except for Verizon video calling, haven't tried that yet), and I don't really mind since there are significantly more common ways to get this working.

These are the steps *I* went through to get my device working. They might not all be necessary. They might not be all-inclusive. =) I also mess around a lot to get my device up and running, so it's possible I didn't document something. Anyway, enough with the disclaimers:

I bought a ROG 5 directly from this link. (I don't know if any other models work, or any CN models with flashed ROMs work.). I purchased this one because I specifically wanted the one with all the bands in the US, and the Tencent one does not appear to have as many bands - and the specifications on many of the reseller sites are unclear (and flat incorrect). Note that there are many different variants. The part number that I ordered was ZS673KS-16G256G-BK, and the part number on the sticker on the device itself is ASUS_1005DC. My current OS version is 18.0840.2104.49.

Based on poking around here and reddit, I found that people had gotten non-CDMA devices to work on Verizon by having HD Voice and CDMA-less provisioning enabled on their accounts. (OnePlus 7 Pro was the reference device I used). Note that if you do not have BOTH of these enabled, weird stuff may happen. (No phone calls can be made, texts will go into /dev/null, texts might be sent but not received.)

You need a 5G SIM card. I had a 4G one from my previous (non-CDMA device), but just physically transferring did not work. (at least some combination of 4G sim card and not having the right flags provisioning enabled on my account). I just want to a Verizon corporate store on the advice of a Cust Service rep and they were able to help me out.

You need to have them provision the 5G SIM card to a device that the Verizon system will recognize, because if you try to provision the card and tell the VZW system that it's going into the RoG phone 5 (using the IMEI), it will fail horribly. The VZW person put it into an iPhone 12, associated the SIM with my account, and then I put it into my Rog 5 (Slot 1) and both the phone and device were happy.

You need to go through the normal google setup steps, and then type *#*#3642623344#*#* into the phone app to expose the calling via 4G and wifi calling options (and video options). I don't think this survives a reboot.

Enable 4G Calling: Settings->Network & Internet -> Mobile Network -> SIM1 -> 4G Calling. (I also turned on 5G and Auto 5G here, seems to work fine)

Enable WiFi calling: Settings->Network & Internet -> Call -> Wi-Fi Calling

Pop the card into the device (or remove-and-replace) to get the device to renegotiate the settings.

Icons:

View attachment 5339175

Carrier Banner:

View attachment 5339173

Phone calls, text, work (send-and-receive via Google Messages.)