Fernando

This is a hard question to respond, because many things can have liquid damage inside, but this is my personal rule: “Inspect for liquid damage and corrosion, wherever is bad or looks bad needs to cleaned be replaced, if liquid touched the motherboard/circuit board, the same rule wherever is bad or looks bad needs to be cleaned or replaced.”

Samsung Displays are the more high tech on the market, OLED Display ,TouchScreen and Front glass come from factory in sandwich mode less than 2mm, replacing single parts such as OLED or Touch Screen requires expensive equipment, and in your case you have a bad OLED Display (The Expensive Part), so you have to replace the complete Screen sandwich. SUMMARY: Replace OLED Screen Assembly, is DIY Project, Replace OLED Screen Assmebly with Frame/Housing.

(Remove cover and Disconnect Battery) Remove the front LCD Plastic Cover, Remove 4 LCD Screws and Install a new one. You can buy any LCD Screen with this specs from mayor sellers. Lenovo N23 CHROMEBOOK SERIES size: 11.6" WideScreen info resolution: HD (1366x768) info Surface Type: Matte info Video Connector: 30 pin video connector info Mountings: Side Brackets info ORRRR if you want to be 100% SURE that screen will work, remove the broken LCD Screen and buy it by model Number LTXXXXXX something.

If you replaced your screen, it can be excess of glue( If was a aftermarket Screen), you can try the camera without installing it on the Screen and if is clear, the Front Camera hole/windows is the problem.

RESET SMC How to Reset the SMC on MacBooks

It is possible, the port is attached to the motherboard, somebody with experience have to take this repair, copper pads are easy to damage when you are de-soldering the old port. iPad 6 Teardown

You have to transfer the Chip Install Series 2 Display on a Series 3 with Apple Pay

That looks like you are having a lot of fun, last time the moderator remove a comment with links so i have to explain it to you. I found the schematics basically is a LG Display the model is LM270WQ1, and has a led strips. that connection goes to the led strips you can find some guys on google (I can’t share links ) that are replacing the led strips from the display panel. Now looks like you are doing crazy things there, make sure that your Backlight Power supply still working and does not have any blow fuse. https://gerrysweeney.com/apple-imac-27-dark-side-screen-failure-the-manufacturing-fault-apple-will-not-admit/ https://forums.macrumors.com/threads/is-it-possible-to-replace-only-the-backlight-of-my-27-imac.1099304/#lg=post-19378307&slide=0 https://www.avnet-integrated.eu/fileadmin/user_upload/File...-SLC2.pdf

HDD Connection is hidden by the I/O Flex Cable, hope that your connection is fine because looks that you forced it.

You can do a right repair: Find the broken piece and solder it back, or Order a new piece and solder it back, or take the piece from a donor board and solder it back. You can do a quick repair: Remove the head from the cable, solder the outside cable to ground and the internal cable to the signal pad. Is a five minutes task, but you need to have the equipment and the knowledge to complete the task. From $30 to $50 I think it’s OK