Hello, so I didn’t want to try out the suck method because I think it’s kinda gross lol, so I tried a more extreme version of a clearing water from speakers video and used this for about a minute 31 seconds and my left earbud is almost back to full, if not full volume
obviously don’t play this while it’s in your ear, just hold the ear bud so the speaker is facing the ground and let it run for a bit, i’m sure the longer the better but I only did it for a minute bc im impatient
ive found the fix!!
first, go to settings then accessibility, then go to “hearing” or audio/visiuals
after, turn on mono to have both the headphones with the same audio, and also balance the audio while your there.
if it didnt work its probably earwax, clean it well and have a fun time with your headphones.
lmao. I had the same ideia. just sucked too light. after your comment I did again and it worked. thank you. shame on Anker not having this response in their script.
The “Suck Solution” works! Incredible but really work to me…
Just paired a brand new set of Sleep A20s from the box. Immediately noticed the left bud had almost no volume unless you turned them up all the way. Found this thread before I boxed them up to return. My pair was brand new before I put the buds in, so this wasn’t a wax problem.
I used the “suck” method and then updated my firmware to 01.39. I’m not sure which did it, but they work perfectly well now. Thank you!!!
Suck method did not work!!! As well as cleaning with alcohol and hydrogen peroxyde!!! Got mine just 2 weeks ago
Definitely sucking method is a winner!!! Before buying hydrogen or anything else, try this! Sounds kinda weird but it is effective af
THANK YOU VERY MUCH! This worked perfectly 
Bluetack or white tack as I had handy worked for me. You press it and then pull it out - it goes through the little grid and helped unclog - no visible wax but the sound returned and after about 20 press and pulls the volume was just about as loud on the quiet side as the good side
Thank you so much, I tried everything else but never thought of sucking hard… Now they are back to their best!