オリジナル投稿者： Alex Niculescu ,
Hi! Try reconnecting the ribbon cable of the upper screen to the main board using [guide|4784|this] guide. If that does not work, you will need to replace the upper display (we have a guide for that as well [guide|4800|here]). You can find replacement displays on [https://amzn.to/2CMZU9M|Amazon] or eBay.