[DannyBai]

I’m trying to update the firmware and when I get to the spot where I have to browse for the dfu, can’t find the file. Everywhere I look, all files are empty. I’ve dumped the firmware and downloaded again and same results. I’m sure I’m doing something wrong but anyone have an idea what I’m talking about?

 

[holsen]

I’m trying to update the firmware and when I get to the spot where I have to browse for the dfu, can’t find the file. Everywhere I look, all files are empty. I’ve dumped the firmware and downloaded again and same results. I’m sure I’m doing something wrong but anyone have an idea what I’m talking about?

Did you unzip the file? I really don't mean to ask a silly question or cause insult but if you unzip the file, you can isolate the dfu file and put it anywhere you like. Inside the zip archive the updater can't find it.

 

[DannyBai]

Did you unzip the file? I really don't mean to ask a silly question or cause insult but if you unzip the file, you can isolate the dfu file and put it anywhere you like. Inside the zip archive the updater can't find it.

Thanks. I did not unzip it so I am silly. Sometimes my mind goes blank.

 

[holsen]

Thanks. I did not unzip it so I am silly. Sometimes my mind goes blank.

 

[DannyBai]

I press the mode button twice and it switches between low (blue) and high (green) but can’t get boost mode. Any ideas?

 

[Shanling]

Hello @Shanling I have a question regarding software for UP4. Is there any release date of this software for customers ?

We now have updated beta version of it, so hopefully will get it out soon.

I press the mode button twice and it switches between low (blue) and high (green) but can’t get boost mode. Any ideas?

Boost mode is only available in Single ended mode, if you have connected balanced headphones, it will not activate.

 

[DannyBai]

We now have updated beta version of it, so hopefully will get it out soon.



Boost mode is only available in Single ended mode, if you have connected balanced headphones, it will not activate.

Ok. Thanks!

 

[cleg]

Text version of UP4 review by Porta.Fi​

English: https://porta.fi/shanling-up4-bluetooth-receiver-review-brand-approach-in-everything/
Russian: https://porta.fi/ru/obzor-bluetooth-resivera-shanling-up4-firmennyj-podhod-vo-vsyom/

 

[preddd]

What music player app do you recommend to use with UP4? I also noticed that LDAC/44.1khz has a weaker output compared to HWA/44.1khz, no issues when using 96khz on both. Anyone also encountered this problem? I'm using Huawei P30 Pro (android 10) + Poweramp pro as source.

 

[lordaine]

@Shanling : When I'm using single ended IEM's on boost mode even just by turning it on, I can hear a lot of crackling sounds or noise, is this normal?

 

[joeexp]

Quick survey.

AptX HD or LDAC?
Which sounds better with the UP4?

 

[Dobrescu George]

Quick survey.

AptX HD or LDAC?
Which sounds better with the UP4?

From my experience, LDAC should be better than APT-X HD

 

[Shanling]

What music player app do you recommend to use with UP4? I also noticed that LDAC/44.1khz has a weaker output compared to HWA/44.1khz, no issues when using 96khz on both. Anyone also encountered this problem? I'm using Huawei P30 Pro (android 10) + Poweramp pro as source.

We are aware of this strange issue of LDAC 44.1, not sure what exactly is causing it.

@Shanling : When I'm using single ended IEM's on boost mode even just by turning it on, I can hear a lot of crackling sounds or noise, is this normal?

This problem can sometimes shops up(mainly if you connect UP4 and change gain before starting music). We have fix for it in upcoming firmware update. Meanwhile we recommend to start playback and then change gain with music playing.

Quick survey.

AptX HD or LDAC?
Which sounds better with the UP4?

We recommend LDAC for the best sound quality. But be sure to have LDAC set to sound quality priority, not the other two lower quality modes.

 

[yorosello]

Hi, I try to pair my UP2 with my Samsung S10+ via LDAC. When I try to use the best setting, the 990kbps, it keep delaying & interrupted. Last time when I did the same thing to my s9+, i have no problem. Do you know why it happen?

I have try to reset the connection but it just won't work.

Okay. I think i kind of lessen the choppiness by turning off the wifi thought it's still get interrupted sometimes. Sigh.

 

[MrEternity]

Can I connect UP4 with iPhone 6s Plus by using Lighting cable to USB C in order to get better quality out from iPhone 6s+?

I try to do it but I have no sound coming out from the headphone. Is it the problem from the cable or it's just not supposed to be connected by cable?

Is it any possible way to get a better quality of sound than AAC from iPhone 6s+ and UP4?

Thanks.