I began by asking a simple question: which is the best USB-C cable to use? I received the answer “we don’t test on MacBooks” (despite the fact the product is promoted as working on MacBooks).
That’s not support. Yes, it potentially could be an Apple problem. If it’s an Apple problem it means the device is not plug-and-play for Apple devices and they should stop advertising it as such.
My main criticism is how
incurious they are about it. I went looking for answers earlier in the thread and found examples of early users realising they were unable to charge from USB-C adapters. Shanling just shrugged their shoulders and said “use the supplied USB-A cable”. With the entire industry shifting towards USB-C ports and chargers don’t you think that attitude is a bit short-sighted? I just want to know
why because then I can hopefully find a solution.
What is working:
- UP2 charges from Apple 5w charger (USB-A cable)
- UP2 charges from Ultimate Ears/Apple 12w charger (USB-A cable)
- UP2 charges from and works as DAC from Intel MacBook (USB-A cable)
- UP2 charges from and works as DAC from M1 MacBook (USB-A cable —> adapter —> USB-C port)
What is not working:
- UP2 unable to charge from USB-C chargers (USB-C cable)
- UP2 unable to charge/connect with M1 MacBook (USB-C cable)
I’m not an engineer but if I had to guess I’d say the UP2 is set to only expect a small amount of power and lacks the ability to negotiate a lower power delivery rate using USB-C. When it receives a USB-C cable input directly the high amount of power means it triggers some safety mechanism and won’t turn on. Does this sound about right, Shanling? Is this something you’re able to fix for future versions of your devices?