What exactly do you need to know to give me information so that I can troubleshoot this thing here do you have a schematic do you know how to test a remote those are my two questions if the answer is no then I need to move on.
First, That's three questions.
Second, I told you what I need to decern what is going on based on the limited info given.
Third, No I don't have a schematic nor is it my responsibility to do your research.
Forth, Yes I know how to test a remote, but I understand that verifying some basic vitals such as voltage supplies comes first. A remote will not work without power.
Sorry, I don't give advice based on guess-work based on poor quality photos.
Fifth, I agree you should probably move on.
A repair like this without a schematic and based on your limited skill-set and obvious lack of patience doesn't usually have a good outcome.
Best of luck and have a nice day.