Xduoo X3 II

[speachy]

So I'm having an issue I hope someone can help: when the xduuo x3ii is connected through usb to a receiver (my car stereo for example) it bypasses the boot firmware selection and goes straight to the stock firmware. This doesnt haooen without the connected usb. That means every time I want to use the device with the car i need to unplug usb, then boot into rockbox, then plug the cable again and it works flawlessly, but defeats the purpose of having a connected device in the car permanently, which is what I want.

This has annoyed me for a while too.  I'd assumed it was an OF feature quirk.. but then, completely coincidentally, when trying to debug a new port I'm working on, I found what was causing this in our bootloader/launcher.

There are a _lot_ of other low-level changes in the launcher (and its integration script) and I need to make sure I didn't cause any regressions on the other targets before I update the public binaries that rbutil uses.

[speachy]

If the underlying xDuoo Linux OS/platform has the ability to act as a USB host for a mass storage device, then yes, Rockbox would be able to piggyback on that.  If that feature isn't part of the underlying OS image, then we're SOL.

The underlying OS/Platform appears to support USB mass storage.  It's not clear how we'd go about polling/detecting a device getting plugged in.

[darkone1243]

I find the Sinux custom firmware much better than the stock one. Is there any way to dual boot Rockbox with this one instead of the stock? I appreciate if someone could point me to the instructions.

Hello passacaglia. Did you success ? can you provide a link with your custom firmware ? Thanks

Not him, but i got it working. When patching Sinux .upt with hiby_patcher.pl i was getting die error at line 95 (probably some naming problems, might be case sensitivity related?), so i just added a line before that break ($ubiname = "system.ubi"; ). It patched (with bootloader.x3ii provided) and upgraded succesfully.

[fossphile]

If the underlying xDuoo Linux OS/platform has the ability to act as a USB host for a mass storage device, then yes, Rockbox would be able to piggyback on that.  If that feature isn't part of the underlying OS image, then we're SOL.

The underlying OS/Platform appears to support USB mass storage.  It's not clear how we'd go about polling/detecting a device getting plugged in.

Thank you so much for the update!

By chance might you have any 512gb micro sd cards to test if there really is a 256gb micro sd card limit too?
Thank you

[fossphile]

looks like  512gb micro sd cards work: https://www.reddit.com/r/headphones/comments/hojgm6/xduoo_x3ii_with_custom_firmware_12se9_sinux/

[speachy]

The underlying OS/Platform appears to support USB mass storage.  It's not clear how we'd go about polling/detecting a device getting plugged in.

I have it working now.  SD card and USB mass storage can be hotplugged.

Of course, if you're actively playing stuff off the device you removed, $badness will happen. 

(This requires a new launcher binary and integration script)

By chance might you have any 512gb micro sd cards to test if there really is a 256gb micro sd card limit too?

Any card up to 2TB will work.  (that's the upper limit of the current SD addressing protocol)

[pepo46]

The underlying OS/Platform appears to support USB mass storage.  It's not clear how we'd go about polling/detecting a device getting plugged in.

I have it working now.  SD card and USB mass storage can be hotplugged.

Of course, if you're actively playing stuff off the device you removed, $badness will happen. 

(This requires a new launcher binary and integration script)

Thanks for responding to my concern. Any chnace of gettinf a patched firmware or update with it solved any time soon? Or perhaps siome clear instructions on how one can do it? I have never fiddled with the bootloader.

[fossphile]

I have it working now.  SD card and USB mass storage can be hotplugged.

YAY

Of course, if you're actively playing stuff off the device you removed, $badness will happen. 

(This requires a new launcher binary and integration script)

the launcher and script to cope with problems and clean up old mounts etc, i assume.

Any card up to 2TB will work.  (that's the upper limit of the current SD addressing protocol)

Yay

[fossphile]

anyone used bluetooth much?
There's this negative review on aliexpress:
https://www.aliexpress.com/item/32944644623.html

R***n
RU
Color: X3II and case Memory Size: Other Logistics: China Post Registered Air Mail

My views of the player are ambiguous. Of the pros: the price-for such a set of functions is very inexpensive; the sound is good; from the relative cons-strange control-to add/increase the volume you need to press the red button on, the other player does not react. The track switches without this button, but not including the screen. Very poorly made friends with wireless headphones on BT 5.0-constant cracking at high frequencies and loss of communication (with the iPhone headphones work great, player problem). Poor playback of iTunes files (crack). The volume has a very small step-you have to long press the button to add/add it. Russian is translated terrible, but it does not interfere. My score is 6 out of 10, the player makes sense to take only if you use special functions like the output to the amplifier, for ordinary listeners it all spoils management problems and other shortcomings. P.S. do not take with the case-it intentionally blocks the volume buttons, it is impossible to use it. 05 May 2020 11:21

[fossphile]

https://www.rockbox.org/tracker/task/13229?type=2
This is a shame to read, that there is a poor design of hardware that leads to pop sounds and delays or workaround hacks the mean not saving power when not in use for short while due to not switching the dac off. pops are a big no-no for using x3II to play music on sound systems or larger diy boomboxs. hmm....

[speachy]

https://www.rockbox.org/tracker/task/13229?type=2
This is a shame to read, that there is a poor design of hardware that leads to pop sounds and delays or workaround hacks the mean not saving power when not in use for short while due to not switching the dac off. pops are a big no-no for using x3II to play music on sound systems or larger diy boomboxs. hmm....

I should point out that the xDuoo firmware doesn't exhibit these audio glitches.  As I said in the bug ticket, I'm just trying to figure out how to shut up at least the initial power-on pop without cutting off the initial voice prompts.

[speachy]

I have it working now.  SD card and USB mass storage can be hotplugged.

YAY

Turns out there's also a "feature" where your SD card would be automatically wiped on startup.

So.  Yeah.

[fossphile]

Turns out there's also a "feature" where your SD card would be automatically wiped on startup.

So.  Yeah.

oww err. a reason to keep weeks worth of music collection re-encodes on a hard drive copied onto sd card.... not directly on the sd card.

[Njones]

After installing using the Rockbox utility installer I only get sound out of the line out without any volume control. No sound out of the headphone jack.

[speachy]

From the main menu, go to system/debug/hw info when something is playing and your headphones are plugged in, and the volume is turned up!

hp: ?
lo: ?

plug things in and out of the jacks, you should see these change as appropriate.  (note it takes about 1s for audio to switch after the jack state changes)

also keep in mind that the playback volume on the LO jack is pegged at max, whereas the HP jack respects the set volume.