Thank you !!! I really appreciate you getting back to me I do have my bootloader unlocked and I am rooted through magisk, I was looking through the files that you were talking about and I was playing around with them last night I have LTE 4G connectivity with a full Verizon card at this moment but talk and text don't work I can send picture messages in that weird well thank you for your time I guess some I'll try to figure out something but if you happen to think of anything please drop them PM me whatever I'm not trying to make a big thing for you to wear people are asking you a bunch of questions or anything like that I appreciate you and the work that you doI'm sorry, I have long since moved on from this phone. I could never find a way to simplify the method, and I do not have the time to guide or troubleshoot at this time.
The only advice I can give is to find the modem iso image from the US XZ2C (I don't remember the location of this file). You then mount the image and find the folder that holds the Mbn files. You will have to compare both the XZ2P Mbn files to know the file structure that they must go in. You need the text file that has the mapping as well as the group of folders associated with Verizon. Then, the phone will recognize Verizon and no further work is needed.
Root is required as well. I could only place the files using a root explorer after flashing the normal firmware for the XZ2P. Or this could be done is TWRP.
Again, I do not work on this phone anymore and cannot offer further guidance.
I will request that this thread be closed.