How do you unblock yourself off someones profile?

Someone must've blocked you because of a specific reason. The only way to UNblock yourself is to hack their account and do this, but that's completely out of the question. If you have a friend that knows this person, though, you can ask them to ask the other person who blocked you to unblock you, or at least tell you why they blocked you. Other than that, you CAN'T unblock yourself.

Or you could make a new account. I did.

That is about the only way. I have had friends who were so offended and upset that they got blocked from particular people's facebook accounts that they ended their original account and started over. Of course there are some drawbacks. You lose ALL info including pics, friends and others. Of course the good news is that the block is removed. That ticked off the person who put it on there in the first place because that person couldn't permanently block the other one. People have the right to end their profiles at any time they want to. One other thing though, if you decide to keep your profile: All posts including pics that are public before the block took place stay in place. The only way they can be removed is if you remove them yourself, or the person who blocked you unblocks you (so that she or he can see them again) and then removes them, or if you end your profile. I think there is a waiting period though, if you end your profile, to start a new one with the same e-mail address; like a buyers' remorse type of thing.

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There is also a thing called key logger, download it, and find out your victim IP address either from simply asking them, or get them to download one of a DDOS's servers. :) Hope this helped.(By the way this is a certain way of hacking)