Hello @Blagan and welcome. I would return it. Who knows what else might be defective? If it comes from a dealer, you still have a warranty even if it's a refurbished one. (At least that's the case in Germany.) Personally, I would get a new Beast X40. The replacement battery already costs €145 in the store. https://www.medion.com/medionserviceshop/de/p/akku-akku-4-zellen-49wh-40084113 There's not much difference left, and you have a significantly longer warranty. If you don't want that, disconnect the defective battery and remove it from the device. This reduces the risk of something happening (the battery leaking or bursting). Cause/Effect: With a bit of luck, this may also resolve the gray tint issue. bye Fishtown
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