Greetings,
I have a pair of August ep 650 bluetooth headphones that I received as replacements of my original pair towards the end of my warranty, and my warranty has ended anyway. I try to be careful with these headphones but occassionally they receive a little bit of impact when they fell down a few times before and as they rub within my backpack.
Previous Damage and Repair
The left ear piece of the headphone had one of the wires (of one red and one black connecting the ear piece to the chip/board) break which made the sound only appear in the right ear piece of the headphone on both bluetooth mode and with the audio jack. The wire/cable was welded together at the breakage point and this fixed the problem. There was no specific damage
Current Damage (Initially)
However, the left ear piece stopped working again, but everything else worked including the bluetooth mode. Opening up the ear piece I found that the red wire/cable (of the one red and one black connecting the ear/sound piece to the chip/board) was detached from one of four openings of the chip/board; broken again.
Note: On both bluetooth mode and using the audio jack played audio, just through the right ear piece. And the battery and everything worked as expected.
Latest Repair
The red wire/cable was welded to the chip/board on the opening from it was detached from, with some solder and flux - but somewhat messily. The broken tip of the red cable was put above a lighter flame (away from the rest of the chip/board) to expose more of the copper wire and burn away the insulator, and a big chunk of solder was used with repeated attempts of welding. Both a knife and a small screw-driver were used to ensure there is a gap between the soldered area and other areas.
Final Damage (The Actual Problem)
After soldering the red cable, the bluetooth mode wouldn't turn on. Using an audio jack worked and both ear pieces would actually work this time (the repair worked), but something else went wrong in that the bluetooth mode couldn't be enabled using the on/off button (and play/pause button).
The blue/red lights function correctly when it comes to charging, but upon trying to turn on bluetooth mode by holding the ON button as is normal (with little and enough charge) neither the expected sounds are produced or the blue light turns on. (One exception is on some press & hold attempts - but NOT EVERY - both the red and blue lights flash for a short instant and stop immediately on the moment of pressing the ON button).
Question: Any hope, any potential things I can try to solve & repair, or will I have to buy a new pair?
Kind Regards & Thank You,
NeoJ.
Images (some with Annotated copies):

I have a pair of August ep 650 bluetooth headphones that I received as replacements of my original pair towards the end of my warranty, and my warranty has ended anyway. I try to be careful with these headphones but occassionally they receive a little bit of impact when they fell down a few times before and as they rub within my backpack.
Previous Damage and Repair
The left ear piece of the headphone had one of the wires (of one red and one black connecting the ear piece to the chip/board) break which made the sound only appear in the right ear piece of the headphone on both bluetooth mode and with the audio jack. The wire/cable was welded together at the breakage point and this fixed the problem. There was no specific damage
Current Damage (Initially)
However, the left ear piece stopped working again, but everything else worked including the bluetooth mode. Opening up the ear piece I found that the red wire/cable (of the one red and one black connecting the ear/sound piece to the chip/board) was detached from one of four openings of the chip/board; broken again.
Note: On both bluetooth mode and using the audio jack played audio, just through the right ear piece. And the battery and everything worked as expected.
Latest Repair
The red wire/cable was welded to the chip/board on the opening from it was detached from, with some solder and flux - but somewhat messily. The broken tip of the red cable was put above a lighter flame (away from the rest of the chip/board) to expose more of the copper wire and burn away the insulator, and a big chunk of solder was used with repeated attempts of welding. Both a knife and a small screw-driver were used to ensure there is a gap between the soldered area and other areas.
Final Damage (The Actual Problem)
After soldering the red cable, the bluetooth mode wouldn't turn on. Using an audio jack worked and both ear pieces would actually work this time (the repair worked), but something else went wrong in that the bluetooth mode couldn't be enabled using the on/off button (and play/pause button).
The blue/red lights function correctly when it comes to charging, but upon trying to turn on bluetooth mode by holding the ON button as is normal (with little and enough charge) neither the expected sounds are produced or the blue light turns on. (One exception is on some press & hold attempts - but NOT EVERY - both the red and blue lights flash for a short instant and stop immediately on the moment of pressing the ON button).
Question: Any hope, any potential things I can try to solve & repair, or will I have to buy a new pair?
Kind Regards & Thank You,
NeoJ.
Images (some with Annotated copies):












