Just as a small addition:
If neither the question nor the answer can be found, then you have to find the proper place for posting your question.
Is there a forum for your device, then go to that forum.
Is there a dedicated Question & Answer (Q&A) sub forum, then go there.
Is there a thread for asking / even for new users, with many posts and the last post is from today, then go there and post your question there.
Or is your question/issue related to a special app, the post into the apps thread, is it related to a kernel, find the kernel (discussion) thread, or is it ROM related, then use the ROM thread.
This step is very important, as you have to find a place where your post will be seen by some experienced users which know the answer.
Then check the contents of your post itself.
Please think about the xda rules (no offence, no personal attack, English, etc.).
Describe as much as possible, what might be useful for others to think about the possible cause of your issue and a good solution to fix it or to give your the right answer.
What device/model, what app(s), what firmware version (ROM, kernel, modem, etc.), what was before, what is now, what have you done, what has happened in between, etc.
Maybe not all those information is really needed to solve the issue or give your the answer, but are you sure that it is not relevant?
If you are not sure, then provide this info.
Be polite, stay as "objective" as possible ... most of the time, emotions are not needed to solve the issue
Maybe you say something like "I would appreciate any kind of suggestion, even if it does not help to solve the issue for me.", or "Thanks in advance.".
It's a kind of motivation for other users to be confident to answer your post, even if they are not absolutely sure that it really can solve your issue.
Sent from my GT-I9100 using xda premium