Originally Posted by BrasilSamba
let me post my newbie plea for help. Excuse me if I post in a wrong thread.
I have just got my new Hifiman HM 901 with balanced card, JH13ProFreq., AudioMoon Silver Dragon balanced cable with TRRS connector, Sandisk 128GB extreme card.
I loaded it with dff files and started to listen. I tried stock JH cable with balanced switch off, then I replaced cable for MoonAudio and switched the balanced on. I was glad I upgraded the cable, the difference was noticeable.
Overall, I'm very impressed with the player, iems and cable. Nevertheless, as for the HM 901, there are few questions I cannot find answer for.
1) car charger
The player cannot be charged via USB cable. So I ordered the "black frame" battery charger + replacement battery and thought that it would support USB charging. But there is no indication/diod on the frame, so I cannot check if it works.
Q: it there any information about the battery charger? Is there any other car charging solution?
Although I could read in the Settings of the HM901 that the firmware is 1.82 and kernel 2.9, I had some issues with the cue support ON (repeat. restarting) , so I got a suspicion that it may have not final but 1.82 beta version installed.
Q: is the "beta" info included in the settings (pe. "1.82 beta" or so?
3) firmware update
In connection with 2) I tried to update the HM901 with the 1.82 final "update.zip". I followed the instructions from Hifiman web, but it seemed that the player went to the recovery mode, but "froze" without any progress that should be automatic. I waited about 20min and then gave up and reset.
Q: how to update firmware? Did I something wrong? It was on Sandisk 128G extreme, my Mac shows exFAT stock partition.
4) volume adjustment
It may sound as a stupid question, but when I change volume, there is a short "crack" or "hissing" after switching to the next volume position, the higher the volume, the louder the crack. Then it plays normally.
Q: is there a similar experience, I mean is it normal?
I would be very thankful for any hint or advice.