Samsung Galaxy S23(ATT) 128 GB for $449, S23 Ultra 256 GB for $699 $449

https://www.bestbuy.com/site/sams...Id=6530811

1. There are two timelines for the cancellation. If you cancel a line before 3 days it was active then the activation fee is waived. If you cancel it within 14 days from activation under buyers remorse then no bill is charged but activation fees need to be paid. The line activates on right when you place the order not the day you receive the phone on hand so you might have to pay the activation fee of $35.
2. You can use a tello number and port to ATT but you would have to make sure porting is successful by going to https://www.att.com/portstatus/.
3. You can use SIM swap method method to unlock the device.
4. When you receive the phone activate it on ATT with the SIM provided. Make sure it shows up on myATT app/in the web so ATT knows and registers the IMEI in the network. Then put the SIM in another unlocked phone, reboot, make some calls and make sure this unlocked phone is now showing under the line in app/web portal.
5. Now go to ATT unlock portal https://www.att.com/deviceunlock/ and then choose not an ATT customer and use the IMEI of s23 and submit an unlock request.
6.Confirm the unlock request email and receive the unlock code.
7. Only cancel the line after you have unlocked the phone.

Then after unlocking if you are feeling adventurous and want to flash the phone to an unlocked firmware to get rid of ATT bloat you can follow these steps. It's actually very easy to do with Odin.

1. There are many models of s23U but in US two models are imp. S918U is carrier locked version and S918U1 is the unlocked US version. The firmware for these versions are interchangeable so you can flash the ATT model with S918U1 firmware.
2. Download patched odin v3.14.1_3B_PatchedD.zip from https://xdaforums.com/t/patched-o...1.3762572/ as regular odin does not allow flashing mismatched firmware.
3. Download the firmware from S918U1 XAA version from https://samfrew.com/firmware/mode.../Desc/0/10 Extract as there will be multiple files.
4. Connect S23U to the windows PC. Make sure developer mode is turned on in the phone.
5 .Put s23u in download/recovery/odin mode. Power down. Press Volume up and down together and then press Volume up to go into recovery (a green screen would appear).
6. Start odin and then select different files for different categories and then start.
7, It should be now the US unlocked version.