AIGO EROS Q / AIGO EROS K / IRULU Surfans F20 / AGPTek H3 / HIFI WALKER H2

[s3t]

I can confirm the Eros Q outputs music to external DAC connected to USB (confirmed by Samsung/TempoTec dongles).
I bought it just for the USB out and... it works (very happy). (yes, took the risk and it paid off).
Playing from 512GB card, so far it's fine. It makes it extremely underspecced player.
Now i can let my iRiver iHP120 rest (used it for digital output).

UPD:
Flashed RockBox 1.8 prepatched FW, the player hangs with the 512GB card:
 - Bootloader is fine, select RB -> hang. If i go to utilities, exit and run RB -> boots, try to browse files = hang. eject card = FW unfreezes.
 - Selecting OG firmware, hangs on boot. Eject the card - FW unhangs, insert the card - works ok.

The player came with 1.9v firmware, can't find it anywhere now, but there is 2.0 on the official website which doesn't hang on my (and doesn't seem to be supported by the patcher as the RockBox utility crashes during(before) the patch process).


Does anyone use 512gb cards? I wonder if it's size or exFAT issue. the card is FAT32
I'd guess the native build won't support usb host DACs.
Is there any patching manual/hints on unpacking/modifications for the original FW other than bin patches?)
./hiby_patcher.pl eros_q fw.upt bootloader.erosq
+ install the packages:
# need '7z', 'mkisofs', 'md5sum', 'mkfs.ubifs'
# and https://github.com/jrspruitt/ubi_reader

had to run the command with sudo as the script got some permission errors, then the resulting FW bricked the player so i've added another "fix" to the script that "fixed" the internal FW file's permissions:
system("chown -R 777 /tmp/");
### Generate new RootFS UBI image


UPD2: Patched the 2.0 FW with the bootloader, RockBox works, but no USB output,
My best chance would be tapping i2s lines from DAC and converting them to LVDS, or adding SPDIF transmitter, both options rely on player's internal clocks and their jitter would be not great.

Unbricking procedure: add original update.upt in the root of card, turn off, turn on by pressing pwr+vol up => it loads the FW from card.


UPD3:
Tried to play with /etc/asound.conf, managed to select the default output card/device, and... and silence. Yet, when i unplug the USB DAC, RB hangs. It means it is playing thru USB, or at least uses USB clock for playback. Attempted to run amixer before rockbox load gave no results (i have no idea what i'm doing).
So... debug build it is, wish me luck

UPD4: no luck. Built, got debug thru printf() to stdout >> fille.log (LOGF didn't worked for me), and then ubuntu VM gave up on building in SW volume control mode (less ALSA involvement). maybe there is some specific codec code, dunno, it got too involved for this time.

By the way, ALSA reports ES9018, which is nice.

[erikstylianos]

Hi Folks - recently bought a HIFI WALKER H2 which is running firmware v1.6 according to the 'About' section on the device. I did not see this version listed as supported nor unsupported, so thought here might be the best place for my query.

I'm unable to use Rockbox Utility, as it will not find a mountpoint for the device (OS: Windows 11). I would like to make a backup of the current firmware to help development here, but seem to have difficulty getting the bootloader added to the device.

Would anyone here have any helpful advice, had a similar experience or has managed to get Rockbox installed on firmware v1.6?

[studio910]

Disregard the db records question . I am again an idiot.

[schatteneis]

Hello all (not sure if this OK to post here) was wondering if some smarter peeps than me in here could help with porting this to the surface F28? Already tried but ultimately failed, here is my post about this
https://forums.rockbox.org/index.php/topic,54692.0.html

[smbgaiden]

Getting the plugins to work and made decent progress with avoiding defining the scroll wheel as PLA_LEFT/RIGHT and some minor fixes on oversights in some of the plugins.

Hit some dead ends with the apps/plugins/puzzles series. Anyone understand the button firmware well and these puzzles button logic well?

In rockbox.c in apps/plugins/puzzles, first issue is the call to buttons_get_w_tmo returns decently with  any button or scroll action.  However the call to button_status shortly afterwards will not report on either scroll direction. Since the local variable button is reused on the button_status call then there is no longer any record of the scroll actions and the games like Black Box,etc, can't move right and left.  I saw button_status is simple and just returns lastbtn. And lastbtn is set in the ticks function.  Perhaps a race condition on button_get_w_timeout using 0xFFFFFFFF unblocks with the key before the message posts to button_queue? The only likeness i could find was brickmania which has a similar button_grt_w_tmo followed by button_status, except two differences,  firstly is that it works for the button_status call and secondly the call to button_get_w_tmo has a much shorter timeout than the puzzle series.  For puzzles, is it the button queue post vs the immediate return from button_get_w_timeout after a button is pressed that prevents the lastbtn to get set? The physical buttons like back, menu,  prev, next, and etc don't suffer the issue hence thinking it is related to the queue.

i implemented a workaround to the button_status issue, but don't think this is something to propose as a commitable patch.  The button_status workaround was: make a copy of the return of button_get_w_tmo, after button_status is called do ifdef for erosq_pad, inside this if the copy of the button had a scroll left or scroll right set then OR | them into the return of button_status
variable.

I noticed this has ADB and have used it successfully.  However there's no logcat. a what's a good way to do printf style debugging to explore the button_queue vs ticks vs button_status vs button_get_w_tmo logic? Thank you

[coomer101]

I've had my F20 for a little over a year now, using the hosted port. Love it and appreciate the work that's gone into rockboxing this, seeing how it's one of the rare players that has RB support and is still in production.
Is there a way to set the hardware volume gain? Using more sensitive IEMs the output is pretty hissy. I noticed it's a little less hissy with the stock OS compared to RB.
I've gotten around this using a USB-C DAC dongle but that limits you to the stock firmware sadly.
I remember reading that digital audio out is technically supported by rockbox?
I found an Eros Q on sale so I ordered that, curious to see if the output is as hissy with sensitive IEMs as the F20 is.

[user1975]

A couple years ago, AIGO released an EROS Q II, in two variants -- one that looks the same as the old one, and one without most of the controls, replacing it with a touch-senisitive area.  I don't know how the underlying hardware compares to the first-generation, though they made a big deal about how it's more capable, and it also utilizes an ESS 9118 DAC.

Last night I discovered that they're also selling an EROS Q v2.0, and that is based on the same X1000+hibyplayer architecture as the original -- And I know this because there's a firmware update file for it.  I wasn't able to sufficiently navigate the chinese-only website to find pictures, but based on photos on Aliexpress it seems to be similar to the updated Hifiwalker H2, sporting a USB-C port.  (The Q II still has a micro-B USB port)

I should be able to patch the Q v2.0 image to enable the hosted port to run on it.

On Amazon, there is now a version of the H2 being sold with a touchscreen and USB-C. I'm not sure if a patch could be created based on the current port or if it would be completely different.

https://www.amazon.com/dp/B0BJ735GFX/

[coomer101]

This family of devices is one of the few (if only) rockbox PMPs that are powerful enough to have several EQ filters while playing high res files.
I wonder if there's a way to have rockbox recognize AutoEQ configs?
I've been "translating" them by hand and it works very well, but it's very tedious.
Been brainstorming ways to at least have a bash script convert them PC side then moving them to the payer but my sed and awk skills just aren't there sadly.
Anyone else use the parametric EQ? Very underrated feature of rockbox imo

[speakn2pabst]

This family of devices is one of the few (if only) rockbox PMPs that are powerful enough to have several EQ filters while playing high res files.
I wonder if there's a way to have rockbox recognize AutoEQ configs?
I've been "translating" them by hand and it works very well, but it's very tedious.
Been brainstorming ways to at least have a bash script convert them PC side then moving them to the payer but my sed and awk skills just aren't there sadly.
Anyone else use the parametric EQ? Very underrated feature of rockbox imo

Yes it's a great feature.  Try out the site www.AutoEq.app  .  Assuming you can get the graph to the correct settings you can choose to export/download a rockbox eq file.

I think if you correctly install and run the AutoEq command-line app it has the option to output a rockbox eq file as well. 

The web app is probably faster though.

[user1975]

Someone could share a firmware update for the lastest version of HiFi Walker H2? Maybe is the 1.7. Thank you

[coomer101]

Yes it's a great feature.  Try out the site www.AutoEq.app  .  Assuming you can get the graph to the correct settings you can choose to export/download a rockbox eq file.

I think if you correctly install and run the AutoEq command-line app it has the option to output a rockbox eq file as well. 

The web app is probably faster though.

Oh thanks, I had no idea this existed

[coomer101]

I'm gonna go ahead and post it in this thread as well,
I received an aigo eros q running 1.9 firmware
To install the native port, the patched bootloader on the wiki gives a nand error
This works (taken from the thread dedicated to this error)
https://drive.google.com/file/d/1S5HsTPbqPpBoyJExfhBcXRpEUkh86xGk/view?usp=sharing

By the way, can anyone with an eros q and 3D printing/design skills design a new back cover?
While I was able to (mostly) nondestructively remove it, it was still a pain in the ass and it has these melted on plastic rivets. You need to pry off the glued on plastic covering, and basically break off the rivets for the actual backing underneath.
A simple back cover that just screws on is much better for serviceability

[flockstivist]

Hi everyone!

I just recently bought myself a HIFI Walker H2 with firmware v. 1.5.

I would like to install a native version of Rockbox on the thing, however, I'd much prefer Rockbox to be the only bootable option, bypassing or discarding the original firmware completely.

As shown in this Jztool article section here ( https://www.rockbox.org/wiki/JztoolInstall.html#Step_5:_Complete_the_install ), the current recovery menu contains just too many options, many of which I don't really need.

As I primarily intend to use it with wired headphones and an SD card, I am not concerned about losing the Bluetooth connectivity, as well as USB OTG functionality.

Is there a bootloader configuration or an alternative firmware file which would allow me to accomplish just that? Thanks.

[coomer101]

Thats exactly what the native install does, boots directly into rockbox

[megapods]

I just got an AIGO EROS Q and tried to install the native port on it. Bootloader backup and installation went well, but I am unable to boot into Rockbox. I get the message "Error loading Rockbox. File not found."

The SD card is inserted, formatted with MBR and FAT32. I unzipped rockbox-aigoerosq-20240510.zip to the root of the SD card (.rockbox is there right next to bootloader.erosq and erosqnative-boot.bin). What I am missing?