So I bought a broken Samsung Galaxy Tab S8 with a previously replaced screen and upon opening it I looked at the screen...

You can use 99.9% isopropyl alcohol to aid in clearing out debris from the speaker. Just make sure you turn off and unplug the device then after cleaning leave it for an hour to make sure that all of the alcohol has evaporated (you can use the heat of a hairdryer to help).

Try some of these trouble shooting steps as they may aid you in diagnosing the problem: Perform a Battery Health Check (1) Use a tool like CoconutBattery (Mac) or other diagnostic apps to check battery health and charge cycles. Perform a Hard Reset (1) Force restart the device to clear any temporary software glitches. Recalibrate the Battery (1) Fully discharge the iPad until it powers off, then charge it uninterrupted to 100%. Monitor Power Consumption (1) Go to Settings > Battery and review which apps or services are draining power. If the screen is disproportionately consuming battery, it points to a hardware issue. These may aid you in diagnosing the problem as a hardware issue or a software issue.

A component within the charging port may have broken but assuming not you can try cleaning out the port with some 99.9% isopropyl alcohol (this is a liquid that is safe to use on electronics). First turn off the device then put some isopropyl alcohol in the port to try to remove any debris (you can repeat if needed) if you own anything soft that you could move around in the port like a form of plastic (don't use metal) use that to aid removal of debris. This method will only work if the port is dirty and the pins aren't contacting as a result. Usually the charging port will charge on/off in these cases.

Hi Niklas, I would suggest finding a screen on eBay to replace the damaged one, however, you need to buy one that comes with an LCD (not just the glass screen). This will probably set you back about £40-60, additionally you will need a heat gun, clamps for reseating a screen, tools to open a screen and the right glue to put it back on. If you have little experience in replacing screens this may be a hard job and could result in further damage to the device. If you would still like to continue I have linked some screens I have found for you (these may be knock offs or be good i'm afraid it is hard to know) and I can aid you in the repair if you are wanting to do it yourself. This one looks the best: Link Others; Link 2, Link 3, Link 4

Hi Exiled, I have a repair guide on how to fix this problem. I hope it helps you! How to fix stick drift on the Oculus Quest 2