C8 light menu operation

I am an inexperienced flashlight fan… bought a few different ones a few years ago, them retiring and a major move distracted me. Now I finally have time to get back into them! Trying to figure out how to use my C8 variant- an XinTD SC-82 V4. Can someone help me figure out/learn to access the menu/modes? Searched various ways to find instructions, no luck.
Any help would be appreciated!I’D like to be able to use it to its full potential.
Thanks in advance!
Wes
ETC/USN RET
Beautiful Winterport, Maine