[Lu88]

Does anyone know how to delete a playlist that I created solely on V3?

HiBy R2 II allows to delete playlists after long-pressing their name, which in turn opens a contextual menu.
No such thing happens on V3..

Currently it only seems to be deleted via HiByLink. Swipe right to left on the HiByLink screen, then you can delete/rename playlists by long pressing one of them on the playlist tab.
If you save a playlist on V3, you will get a playlist.m3u in "playlist_data" folder on microSD, but it's not an actual playlist and just a backup. If you want to edit a playlist, you can edit playlist.m3u on PC, then load it on V3 after edit.

 

[Lu88]

I noticed V3 can be controlled remotely via bluetooth remote like this and also FIIO KB1/KB1K.

[EDIT] It seems not all Bluetooth remotes may work with the V3.
https://www.head-fi.org/threads/tem...nal-with-hiby-os.971088/page-38#post-17988115

 

[dimapro]

I will be opening my unit today. I think I have to heat and pry open the back panel that is probably glued.
The reason: front buttons on my unit don't work at all, I'm suspecting they forgot to connect the cable.
If successful, I'll post some pictures of the insides of the player.

 

[dimapro]

 

[arutyun]

albums I had in .m4a format

I will partly support your findings. Most missing files are m4a alac encoded.

 

[arutyun]

A big and very meaningful question for me.
Is anything can go wrong if I connect to jack 3,5 a 4 or 8 Ohms passive mini speaker? Is there a possibility to burn the built in amp?

 

[losber]

So the photo shows BT/WiFi combo module marked AW-NM372SM.
I found the Rev C https://www.azurewave.com/img/infineon/AW-NM372SM_DS_0B_C_STD.pdf
The datasheet says

Supports Bluetooth Core Specification version 5.1 +

It was my mistake with outdated datasheet.

 

[khtd]

So the photo shows BT/WiFi combo module marked AW-NM372SM. The datasheet says

and the same module is installed in HiBy R3II.

Seems that the official specs had lied a bit. Which in turn seems like a good cause to demand 10-20$ refund from aliexpress seller that sold the item using exaggerated specs.

 

[losber]

It was my mistake with outdated datasheet.

 

[khtd]

There is the mess in documentation that I don't understand.
The module AW-NM372SM datasheet says it's BT4.2 but it has CYW43438_A1 crystal. So public CYW43438 docs say it's BT5.1 itself.

A chipset supports BT5.1, but the combo package as a whole uses only subset of its capabilities, and therefore it supports only BT4.2 - which is what actually matters.

 

[losber]

I found the Rev C https://www.azurewave.com/img/infineon/AW-NM372SM_DS_0B_C_STD.pdf

Supports Bluetooth Core Specification version 5.1 +

For Bluetooth operation, the AW-NM372SM is Bluetooth Core Specification 5.1 compliance. The Bluetooth transmitter also features a Class 1 power amplifier.

It was my mistake with outdated datasheet.

 

[deadhead12]

I will partly support your findings. Most missing files are m4a alac encoded.

I confirmed that the .m4a files are the problem. I loaded and album of .m4a files on my sd card and the device crashed while scanning the database. It scanned normally after deleting that album off my card.

 

[InvisibleInk]

I confirmed that the .m4a files are the problem. I loaded and album of .m4a files on my sd card and the device crashed while scanning the database. It scanned normally after deleting that album off my card.

Wow. Are you going to convert those files to FLAC?

 

[deadhead12]

Wow. Are you going to convert those files to FLAC?

No. If I want to listen to those I’ll stream them from my Plex server. I only had a few albums in that file format, and they’re not ones I listen to often.

 

[Somafunk]

A big and very meaningful question for me.
Is anything can go wrong if I connect to jack 3,5 a 4 or 8 Ohms passive mini speaker? Is there a possibility to burn the built in amp?

Short answer : Don’t do it, the output is only 320mw max, either buy a cheap amp or cheap active monitors.

Longer answer : Your speaker will act as reactive load on the amp in your dap. The internal amp will output an amplified voltage to the speaker crossover/voice coils/tweeter (I’m keeping it simple), if the speakers reactive load exceeds the amps max output the amp will clip which will produce distortion and lead to heat build up in the speaker voice coils which could burn them out.

”not exactly 100% accurate but enough to get my point across“