It's probably because it's hard to get the battery out, I initially tried to do it without removing the screen, but then couldn't get the battery out, and didnt' want to break it while fussing with it.. so decided to remove it.

I'd recommend if they made that clearer in the guide, luckily I put them back in right, its the one with the little bit of blue on it if i recall that isn't magnetic

Was able to get the battery changed without major problems, it really is stuck down good though, so that was the hardest part, thankfully I didn't damage the logic board as some people suggested can happen if you pry in the wrong places.

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The ONE issue that I do have after powering things back up, is there is a small backlight bleed at the top of the screen.

Has anyone else had this problem?

Anyone know what caused it to happen?

I've been looking on the interwebs and it looks like a common issue that many iphone 5's were initially shipped with.

It's not super major, and I can probably just live with it if there's no fix for it, I'd just like to know what caused it, as if it was going to happen I'm glad it happened to my own phone and not a friend or family members phone.

HELP!