Hi @thedeafenguy,
So well, you want to get help from a forum that is not responsible, but you are not willing to fully inform people.
Since this forum is about UT, people wanting help you need more info than people on the Fairphone forum, and I still think they could be helped more there.
That means as much info as possible, like, do you have the device first hand, what OS and version was on the device before you got the feeling I could try a bit to put another OS on it. Did you install UT on the device exactly as instructed by the porter? Did UT run flawlessly afterwards? And so on ...
Why don't you ask the FP forum for advice?
So, I don't have a Fairphone or any Fairphone experience, but from what I understand, you must definitely have a newer Fairphone Android OS than what you were using before you installed UT.
And very importantly, after flashing and before booting the device, you should only boot into the bootloader so that you can check the <flag> fastboot flashing get_unlock_ability.
This value should be 1.
After booting the operating system, you should first carry out all other available updates.
Unfortunately, I cannot recommend locking the bootloader, as I simply have no experience with this.
Greetings Mario