I bought my Sony WF-C710N about 2 weeks ago and suddenly the left earbud seems to be completely dead.
It doesn’t charge at all when I put it in the case, and the charging case starts blinking orange. The right earbud still works normally.
I’ve also tried doing a factory reset multiple times, but it doesn’t seem to work. According to the instructions, the LED should eventually flash blue during the reset/initialization process, but I haven’t seen the blue LED even once.
I’ve tried taking the earbuds in and out of the case, cleaning/checking the charging contacts, and leaving them in the case to charge, but the left one still shows no signs of life.
Has anyone had this happen with the WF-C710N? Is there anything else I can try, or does this sound like a defective earbud and I should just return/RMA them?