Well this just happened to me today
One of my earcups of my solos stopped working and I thought I did something but turns out I didnt.
When using it with my Mac it didnt work properly with either cable that it came with.
I tried it with my Ipod nano and it worked perfectly fine! It's just the mac or the devices fault you are using, not the Beats fault.
Ok there are a million of these around that say Beats by Dr. Dre. (Not quite sure where he got his Doctorate, maybe Jamaica or the Faulkins isles) Here we go. Beats is a high end company that is much better at that then all their other products. A while back 2011 or so, several (and I don't know them all) companies laid claim to say Beats by Dr. Dre and poured money on him. There are several very slight differences like silver trim rings or on/off and microphones etc. This is what is most important. You must look them over VERY carefully. Genuine Beats do not have another brand on them anywhere; on mine they look identical except no options mentioned earlier. A very close examination showed the barely visible brand MONSTER (as in Monster stereo cable fame) where the right and left combine. Monster is a company that sells oversize wire products for stereos that is also an enormous rip off. A couple of years of electronics class or a ten minute exercise on wire size requirements from a real book not a sales brochure and you will never buy oversize cables again. Back to the BEATS. Now I go to the Beats web page and choose warranty. Guess what? They ask if there are any other markings on them specifically Monster. All this means the exact same Chinese ear buds are available anywhere from $50 to $400 same exact basic phones. Wow! I got the $49 pair just to compare. I have a $400 pair and a $49 pair apart in front of me and guess what... absolutely no difference, same headphone!
So take of your rubber ear cup seals and carefully pluck the tiny screens out. Throw them away they were a bad idea. Now take the pin and cut the point off. VERY carefully while looking inside the hole the screen was in (well lit and magnified if you can) and you will see the drivers in the bottom. Blow them out and turn them over. Rap the hole down against a hard surface. Clean again and again until you are sure any loose junk is free to fall out. Tap them again and gently blow them out. Now VERY important pull and push and gently slide the rubber ear seals ALL the way down until the part where the screen was is flush with the rubber ear canal seal small end and the large end stretches over the large end. There should be no gaps and the rubber cup should be over the driver housing. They will have never sounded better. Be very careful poking around in there and don't forget to pull the seal on all the way on until you cover a portion of the large outer housing (the one that says “R” and “L” and, the screen hole will be flush with the small end of the seal all the way on. Enjoy! Every now and then clean them this way.
Hopes this helps everyone. And by the way, it would be impossible to buy the highest quality parts you could find for ear buds and have the cost of parts over $10. Nice mark up on the $400 dollar jobs.
I found the solution!!!
First connect your beats and then click the bluetooth option
Then click where it says beats in bold and go to preferences
go to output then even out the volume from one side to the middle
I know this post is rather dated, but the issue you described is what I was experiencing. The solution for me was to disconnect the cable and then make sure the end of the cable with the beats logo is plugged into the device itself and the other end into the headphone. This would mean that the controls for the headphone would be closer to the headphones. I simply had the headphone cable connected incorrectly. It was a 50 / 50 shot ;-)
I have the same problem with my Solo HD's However the sound does not come from the side with the headphone jack.
Sometimes when I jiggle the earcup ill get a brief second of sound but most of the time it never happens Please help me