never mind...

That's what I said, the key is already known by the device itself. It needs to connect to a server to activate, probably the manufacturers server from where they've loaded a licensed windows version on the player. Google the error code, several things to try.

My laptop has a win10 key stored in it's uefi bios, does not come with a key anymore, a key on the casing or with a cd/dvd with the version, yes. But manufacturers installing win10 enterprise ltsc often think differently and bind it to their specific hardware. Several ways to retrieve it though...

mikejazz, just to be sure, this device has internet access, right? Because it seems the key although partially hidden, is already known by the device?

@vas-tomsk, Hard to find, even the company contact page is not working, you have to contact by facebook or by linkedin, maybe r&d manager Theodore Fu. How are your findings on the H05 so far?

What a bummer, I hope your fio does better in the long run. I'm still using a cheap china bar-shaped player connected to my car's stereo, plays about any format up to 25 hours on a charge, even has radio and Bluetooth. At not even $20...

Less than 200 hours of use and maybe closer to 100 hours, touchscreen stopped responding. I'm stuck in just 1 folder playing Liaisons Dangereuses' debut album. Using my Galaxy S9+ phone now and I don't think I will ever spend money on another dap.

Ask Frank, https://www.head-fi.org/threads/monolith-m300-in-ear-planar-earphones.851090/page-31#post-14176136 Or buy audeze tips/clips at $10 plus shipping from https://www.adorama.com/auear1032kt.html Seems to work well...

Maybe? https://www.head-fi.org/threads/onkyo-dp-s1-rubato-pioneer-xdp-30r-private.839364/page-70#post-14118713

edit: never mind, topic seems dead.

Not even a single response from Onkyo service centers in Europe when asked where to obtain a replacement battery.

Works well here, I use an Oppo PM-3 without EQ because no setting improves sound, but the various pre-set EQ settings and extra bass makes a lot of difference for my Monolith M300 in-ears. Both planar magnetic phones btw. What are your other settings like gain, balanced/acg, is your line-out...

Rip off the old pads from the plastic frame (they are folded over the rim), and do it like this:

The DP-S1 uses a 7 pin connector for the battery I guess, from the board shown down this page, http://www.tellementnomade.org/forum/viewtopic.php?f=135&t=16736 The only battery I saw on Alibaba needs construction work...

Replacement pads on ALIEXPRESS...