I've bought 3 or 4 from AliExpress. Never had any problems with them. You have to know that removing an e-ink screen from a used Kindle is a delicate operation. They are lightly glued to the face plate, and are very, very easy to crack. Some recommend using a hair dryer to warm the glue, but I'd be concerned about damaging a screen that way. I've done it by working a very thin plastic tool between the face plate and screen from the front, working very slowly to peel the face plate from the screen (and not the reverse). Don't try to pull the screen out from the back. I broke an already defunct screen this way (removed it to replace with a new one, and used the process to experiment on removal). I have renovated 4 Kindle Keyboards with screens or motherboards. Friends have given me their broken Kindles. I now have 4 working ones.
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