Database Develop

you can connect Note 2 with USB speakers with this

http://www.amazon.com/PPA-Intl-SAMS...&qid=1362451080&sr=8-7&keywords=ppa+int'l+usb
Confirmed working with Note 2 with a catch, you need to power micro USB jack to make it work (and you can't charge Note 2 in USB host mode).
Tested with Logitech USB speakers and it works.

Why don't just buy a Bluetooth adapter for speakers and listen wirelessly?
http://www.amazon.com/Belkin-F8Z492TTP-Bluetooth-Music-Receiver/dp/B0047T79VS/ref=sr_1_2?ie=UTF8&qid=1362497880&sr=8-2&keywords=bluetooth+adapter+for+stereo

sweetboy02125 said:
Why don't just buy a Bluetooth adapter for speakers and listen wirelessly?
http://www.amazon.com/Belkin-F8Z492TTP-Bluetooth-Music-Receiver/dp/B0047T79VS/ref=sr_1_2?ie=UTF8&qid=1362497880&sr=8-2&keywords=bluetooth+adapter+for+stereo
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Click to collapse
This is an experiment, but you can connect USB audio adapter to get SPDIF audio out through this way.

OTG cable with a charging port might be a better option, thats quite a large thing hanging off the end of you phone so it might be prone to knocks which will stress your usb port.
Theres another thread in this section title OTG with charging, in that thread this cable looks promising http://www.ebay.com/itm/261170130579
edit: You either need a kernel mod or a resistor between pins 4&5 to get otg charging working, a dead short wont work unless the kernel has been modified. My OTG cable arrived this morning. even wireless charging wont work. I dont really need this feature, only planning to use otg intermittently so I am not going to fix my cable.

Help with Smart Dock

i was using the Smart Dock, for about 6 months, and it was running perfect, i saw movies, and play games (emus, and android games) using a ps3 controller wired, on the Dock´s USB, and every time work perfectly.
But suddenly, it stop working, now its dificult to connect, i connect it, and in the phone screen appears the "HDMI cable connected", but after a few seconds appears "HDMI cable disconnected", and then, the message appears one after one,
and when it work, the screen mirroring runs well, but when i connect a mouse (wired) dont work, neither the ps3 controller or a pendrive, the USB Host of the Dock is not working,
I try using a USB OTG, and connect both mouse and ps3 controller, and both work well, but not in the Dock
anny suggestions?
Sorry for the long post

You probably are, but just in case, I'll ask anyway..... Are you using a powerful enough charger (1.8-2.0 maH output) .... e.g-the one that came with the note 2? And are the cables snugly snapped into place and not loosely connected?
Sent from my SPH-L900 using xda premium

omar_alex01 said:
i was using the Smart Dock, for about 6 months, and it was running perfect, i saw movies, and play games (emus, and android games) using a ps3 controller wired, on the Dock´s USB, and every time work perfectly.
But suddenly, it stop working, now its dificult to connect, i connect it, and in the phone screen appears the "HDMI cable connected", but after a few seconds appears "HDMI cable disconnected", and then, the message appears one after one,
and when it work, the screen mirroring runs well, but when i connect a mouse (wired) dont work, neither the ps3 controller or a pendrive, the USB Host of the Dock is not working,
I try using a USB OTG, and connect both mouse and ps3 controller, and both work well, but not in the Dock
anny suggestions?
Sorry for the long post
Click to expand...
Click to collapse
I have this problem too!! none of the USB ports are functioning, however USB accessories all work with my Note 2 via OTG cable (I tried connecting the OTG cable to the Smart Dock too and this didn't work either)

djbenetti said:
I have this problem too!! none of the USB ports are functioning, however USB accessories all work with my Note 2 via OTG cable (I tried connecting the OTG cable to the Smart Dock too and this didn't work either)
Click to expand...
Click to collapse
I have exactly the same problem with all 3 USB ports. HDMI works fine. Is there any special setting or my dock is faulty?

I think they must be faulty, either the unit itself or possibly the charger, or the charger for some reason is not strong enough to power the USB ports (although that seems strange as everything is official Samsung product, and I've tried using my phone power adapter too which ostensibly is the same)

Yes the charger in the dock is 100% the same with the one in the phone packaging. I tried to power the dock through my laptop without any success. Unfortunately, there is not powered problem.

[Q] USB Audio (car usb connector)

I've been searching for a while to solve this.
I'd like to connect my HTC one to my car usb connector.
I've seen several repoirts claiming usb audio works, connecting dac's etcetra.
I know I can connect usb drives with a micro-usb to usb connector, tried it and this works.
But I have also seen people saying you need an USB OTG cable for this, so what is it?
I've already connected my One via the micros-usb to usb cable to my car but I do net get audio via the usb on my car equipment.
So again the question, is audio out available on the htc one (and on other android phones) with the stock rom.
Some of the report where talking about CM roms, I do use the elegancia one but I have no intent of switching to CM.

deboopi2 said:
I've been searching for a while to solve this.
I'd like to connect my HTC one to my car usb connector.
I've seen several repoirts claiming usb audio works, connecting dac's etcetra.
I know I can connect usb drives with a micro-usb to usb connector, tried it and this works.
But I have also seen people saying you need an USB OTG cable for this, so what is it?
I've already connected my One via the micros-usb to usb cable to my car but I do net get audio via the usb on my car equipment.
So again the question, is audio out available on the htc one (and on other android phones) with the stock rom.
Some of the report where talking about CM roms, I do use the elegancia one but I have no intent of switching to CM.
Click to expand...
Click to collapse
since the HTC One does not automaticly plug as mass storage i guess that the car radio simply does not recognize the phone as a mass storage with music.. an USB OTG cable would "fix" it since it will force the phone to be shown as mass storage.. (its a guessing anyway)

And you have guessed correctly. The USB otg cable works fine.....except it added ringtones et al when you select root folder. Worked ok if I navigated to the music folder (assuming your vehicle has that option).
Sent from my HTC One using Tapatalk 4

jmitr said:
And you have guessed correctly. The USB otg cable works fine.....except it added ringtones et al when you select root folder. Worked ok if I navigated to the music folder (assuming your vehicle has that option).
Sent from my HTC One using Tapatalk 4
Click to expand...
Click to collapse
Well, for me it does not work.
As I said before I can attach a USB drive to my phone and I can accomplish this by using a micro-usb to usb adapter.
When attaching the drive my phone complains it cannot charge and that I need the standard charger.
But when using a file explorer I can see (read and write) the contents of my usb drive in the storage/usb folder.
I thought this was enough to decide that the converter was OTG but now I'm not so certain about this anymore.
Is every usb to micro usb an OTG or what are the extra requirements?
Anyway I tried again to connect to my car audio and the message I got on the car was
that he could not charge the phone but the phone was as well not recognized as media input.
Because OTG adapters are very cheap I ordered one which explicitly says it is OTG,
I'll see what happens when I can try that one out but in the meantime all comments are welcome.

deboopi2 said:
Well, for me it does not work.
As I said before I can attach a USB drive to my phone and I can accomplish this by using a micro-usb to usb adapter.
When attaching the drive my phone complains it cannot charge and that I need the standard charger.
But when using a file explorer I can see (read and write) the contents of my usb drive in the storage/usb folder.
I thought this was enough to decide that the converter was OTG but now I'm not so certain about this anymore.
Is every usb to micro usb an OTG or what are the extra requirements?
Anyway I tried again to connect to my car audio and the message I got on the car was
that he could not charge the phone but the phone was as well not recognized as media input.
Because OTG adapters are very cheap I ordered one which explicitly says it is OTG,
I'll see what happens when I can try that one out but in the meantime all comments are welcome.
Click to expand...
Click to collapse
Yes, the cable I had explicitly said "OTG".
I only experimented with this for fun, my Elantra also supports built in bluetooth (phone controls are on the steering wheel, mic in the roof) so I mainly put my One in my car kit, launch car mode and away I go.
The OTG cable worked well for me when I tried it though. It did NOT work with my Son's Nexus 4 so these things can be finicky.

Audio out via the USB in car?

Hi
I've received my P20 Pro this week and am loving the phone so far. However, one big issue remains that i can't seem to get my head around - how to play audio from the phone through my non-Bluetooth car stereo?
I previously had an iPhone 6 where this was easy; plug the phone in to the stereo via USB and it would simultaneously charge and play music from the phone through the car stereo.
But when I plug in the P20 Pro via the same USB port, I can't seem to get audio coming out. I know it's possible - as obviously headphones plug in to the same USB-c port - so is there something I have to turn on or toggle to get it to send audio out?
Any help much appreciated. Thanks.

slangking said:
Hi
I've received my P20 Pro this week and am loving the phone so far. However, one big issue remains that i can't seem to get my head around - how to play audio from the phone through my non-Bluetooth car stereo?
I previously had an iPhone 6 where this was easy; plug the phone in to the stereo via USB and it would simultaneously charge and play music from the phone through the car stereo.
But when I plug in the P20 Pro via the same USB port, I can't seem to get audio coming out. I know it's possible - as obviously headphones plug in to the same USB-c port - so is there something I have to turn on or toggle to get it to send audio out?
Any help much appreciated. Thanks.
Click to expand...
Click to collapse
Check you don't have this option enabled in developer options?

danifilth4king said:
Check you don't have this option enabled in developer options?
Click to expand...
Click to collapse
Thanks - I looked and it's not checked. In fact, the headphones work when you plug them in, so it is allowing audio out with certain connections.
It's just when I use the charging lead to connect the phone to the car stereo (USB) - nothing happens. It doesn't even charge, and says "check USB" on the front of the stereo. if I play music when it's connected, it just comes out the phone - which obviously it wouldn't do if it was connected to the stereo.
Do I need a specific audio lead, rather than just the basic charging one that comes with it?
Coming from an iPhone background, it's just the same lead... so I'm struggling to see why this won't work either.

My case was huawei p20 pro generate so much noise and jitter during playing through USB audio connect to Helix dsp, it solved by changing USB speed mode from full speed mode to high speed mode on the Helix dsp USB setting. As my iPhone was working fine on both mode. In case if you can try to change setting on your car stereo system. Try to consult with your car stereo manufacturer.

Hi Slangking, did you already find a solution to use P20 (pro) audio over USB in your car? I'm having the same issue as you, went from the iPhone 6 to p20. Just a cheap USB stick works, and I could even remote spotify on my iPhone with my steer trough USB. Changing the USB output in the developer settings to audio source didn't work
- EDITED -
I did some research and mounting your memory card as a USB Mass Storage will work like explained over here, but I still can't find out how this will work for the internal storage...

UPDATE
I found something called WIRELINQ: Smart Android USB Converter Cable for Car Stereo. Started as a kickstarter project, but are now able to buy. Will try that one out.

I got one of these and found I can't get anything to play through the stereo, the audio plays on the phone speakers but the track info displays on the stereo screen and the steering wheel controls also work, I can disable USB audio streaming via the dashlinq app which makes radio player within dashlinq work properly.. but nothing else works.. have you had any luck?

Thanks for your reply. You are a step ahead of me. I have the Wirelinq cable but couldn't get it to work, not even the track info on my cars stereo display. It recognise the Wirelinq cable, but not my phone. I am in contact with GROM and even tried to install a new firmware update (which I was able to install myself by connecting the cable to my computer), so there last message was:
This is issue of the phone USB Audio output in software not working correctly as standardized by Android's AOSP. You will have to contact Huawei to get support and resolve it on phone's software end.
Click to expand...
Click to collapse

brumemail said:
Thanks for your reply. You are a step ahead of me. I have the Wirelinq cable but couldn't get it to work, not even the track info on my cars stereo display. It recognise the Wirelinq cable, but not my phone. I am in contact with GROM and even tried to install a new firmware update (which I was able to install myself by connecting the cable to my computer), so there last message was:
Click to expand...
Click to collapse
Did you ever get anywhere with this? I'm a new P20 Pro owner (also having switched from iphone 6) and wanting to crack this issue. Thanks.

Not sure if there is a solution. iPhones behave differently when connected to stereos, just like an usb stick. Android devices don't, unfortunately. I am using an AUX cable with the usb-c adapter in my husbands car, or bluetooth streaming in my car.

Bleutooth receiver to AUX
fell.matt1602 said:
Did you ever get anywhere with this? I'm a new P20 Pro owner (also having switched from iphone 6) and wanting to crack this issue. Thanks.
Click to expand...
Click to collapse
No, it didn't work. Maybe it will if GROM will come out with an update. I've returned my cable and have bought a bluetooth to AUX receiver adapter on eBay for just a few dollar. This actually works very well, you plug the bluetooth adapter in your USB and the cable in your AUX and you can listening wireliss music on each app through bluetooth. The downside is that you won't be able to see your track details, no remote from your steer and the quality is different. But you can still charge you phone with a normal USB cable while listening. It's not a solution, but I got used to it now.

Not a bad idea with the bluetooth to aux!

all the pugs said:
Not sure if there is a solution. iPhones behave differently when connected to stereos, just like an usb stick. Android devices don't, unfortunately. I am using an AUX cable with the usb-c adapter in my husbands car, or bluetooth streaming in my car.
Click to expand...
Click to collapse
iphones actually don't behave like a usb stick when connected to a stereo. the music is still played on the iphone, but the sound is streamed to the stereo. controls on the stereo actually control the playback on the iphone itself.
with android, to play audio over usb, you need to use mass storage mode, which will behave just like a usb stick.
ios can output digital audio over it's usb cable, which the stereo can receive.
android can output audio through usb-c, but i don't think that it can be used to output audio over the usb cable like iphones can. it might be some protocol that iphones use and android phones don't, but technically it should be possible.

Just stumbled upon this thread as I am in the same situation. Basically, I have a P20 Pro and a Huawei Mediapad M5 Lite that are behaving exactly the same..i.e they cannot play audio from USB to car stereo's USB ports. The internal media can be browsed and played via car stereos interface but you cannot stream music via USB from phone (say Spotify) to car stereo.
USB audio streaming works if I enabled ANDROID AUTO at the car stereo and installed ANDROID AUTO in the phone/tablet. You might ask why not just settle for this setup?
I can, butI I hate so much the AA's "Swipe to Unlock" lock and the changes in the UI when AA is active.
What I want is the plain/original phone interface (without AA) and all audio routed via USB.
Bluetooth, I know is an option, but again, it would be nice if this (USB) can be solved. It seems possible, I think. If AA can switch USB audio streaming on, can other apps or workaround/reverse engineering not?
BTW, i tried playing with the Developer Options, USB Configuration as "MTP or Audio Source" --- no luck here

Just bought a Kenwood DDX6906S receiver for my 2013 GMC Sierra I cannot get anything to work via USB. USB debugging enabled. I feel like I've been going in circles. any help would be super appreciated, TIA

Question USB Dongle

Hi, guys!
Do you know if there's a way I can attach a USB Dongle into the port that's in the HDMI end of the Ready-For cable?
I mean, I have a Bluetooth keyboard and mouse, but they will only connect to the dongle that came with them, I have a regular USB to USB-Type C converter, which works on the phone if connected directly to its port, but if I connect it to the HDMI, it doesn't, if there a way to make it work?
I hope I managed to explain myself.

The HDMI's USB is only for charging. And if your keyboard and mouse connect to a dongle they are wireless but not bluetooth, if they were then you would be able to directly connect them to the phone. The solution is to either to buy a USB C hub with HDMI and USB or buy bluetooth periferals.

rodrimax10 said:
The HDMI's USB is only for charging. And if your keyboard and mouse connect to a dongle they are wireless but not bluetooth, if they were then you would be able to directly connect them to the phone. The solution is to either to buy a USB C hub with HDMI and USB or buy bluetooth periferals.
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Click to collapse
That really makes a lot of sense. I hadn't thought about it that way.
Thank you very much.