I'm using SMSL Idol+ (USB DAC) along with my Huawei Nova phone. After phone OS was updated to Andriod 7 then I'm not able to use DAC anymore because phone is switching to reverse charging mode when DAC is connected and sound is not passed to USB. I tried to switch to MTP mode manually but reverse charging mode is on again after a second or two. Do you have an idea how to fix this?
Ive never used any USB audio devices, so I can't verify this. Checked the developer options menu for "disable USB audio routing". If it's on, turn it off. If it's off, turn it on and off again.
Let us know what happens.
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I'm using the Google I/O Limited Edition Samsung Galaxy 10.1" tablet. Connected and developed with the device fine on my Windows 7 machine until the 3.1 update last night.
Now, when plugging in the USB, the new USB debugging icon (the Android bee) shows up in the tablet's tray. However, Windows 7 doesn't find the device. I've tried power cycling my PC and the tablet. I've tried disabling USB debugging several times. I've installed Kies, but it does not successfully install the required drivers. I attempted to install the driver listed on Samsung's page for the device, but it didn't appear to do anything.
I was actively developing an app for tablets, and this has ground my progress to a halt. Anyone else experiencing this? Have a fix?
Have you tried a different USB port (on hub) or a direct USB port on the motherboard?
cosimoss said:
Have you tried a different USB port (on hub) or a direct USB port on the motherboard?
Click to expand...
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Yeah, that doesn't do anything.
Well mine wasnt working all i did was take the usb out uncheck usb debuggin and plugged it back in and it worked..
Yeah, I've tried enabling/disabling USB debugging, plugging and unplugging the USB. Still nothing.
Again, the behavior I'm getting is that the tablet is indicating that USB debugging is on when I plug the device in. I get the USB debugging icon in the tablet's system tray. But Windows 7 just isn't seeing it. This sure seems to be a driver issue.
Finally got it working. It took doing a factory reset on the device.
I had to turn off usb debugging, then plug usb back in.... tablet said that I had to disable bluetooth, disabled and it worked pefectly! So could it possibly be a problem with bluetooth!?!?
Last night I updated to 4.3 via the very useful thread here, http://forum.xda-developers.com/showthread.php?t=2145848
I was in situation "A" with a completely stock Nexus 4 and the side load went without a hitch. I was able to charge my phone from my wall charger last night with no issue. Today at work I realized that my phone was not charging from my PC via USB cable like it usually does. If I disconnected and reconnected I would see "Charging" on the Battery page for a split second then it would change to "Not Charging" and the phone would notify me that I was connected as a media device.
Trying to troubleshoot the problem I had rebooted the phone and the PC, no luck. I tried turning off the check box that set the phone as a media device and when I unplugged and replugged in my phone it started charging again. To test my theory I turned the "media device" option back on and charging stopped right away. Has anyone else seen this?
Steps to duplicate:
1) Connect phone to PC via USB with Connect as "Media device (MTP)" checked (Settings -> Storage -> Menu -> USB computer connection)
2) See that the phone is not charging.
3) Uncheck "Media device (MTP)"
4) Unplug and replug in USB cable
5) See that the phone is now charging.
6) Re-check "Media device (MTP)"
7) See that phone immediately stops charging.
Not sure if this matters but the PC is running Windows XP. Up until today I have had no issues charging and nothing has changed configuration wise on the PC that I know of.
Thanks,
Eric
A friend of mine just had the problem. It seems that, since 4.3, you can no longer charge if MTP or PTP is activated AND your peripheral is not recognized by the system. I mean, since it is work computers, I assume you do not have privileges to install drivers for your phone. And so, it won't charge until you deactivate the MTP fonction. At home, where your phone is properly recognized and drivers are installed, no problem.
Another solution is to find a "charge only" usb cable, like the ones delivered with external batteries for example. We tried it, and it works also even without deactivate MTP or PTP.
Same Issue. On two different devices out of the box.
virus2013 said:
A friend of mine just had the problem. It seems that, since 4.3, you can no longer charge if MTP or PTP is activated AND your peripheral is not recognized by the system. I mean, since it is work computers, I assume you do not have privileges to install drivers for your phone. And so, it won't charge until you deactivate the MTP fonction. At home, where your phone is properly recognized and drivers are installed, no problem.
Another solution is to find a "charge only" usb cable, like the ones delivered with external batteries for example. We tried it, and it works also even without deactivate MTP or PTP.
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Click to collapse
I own two Samsung devices and they both have the same issue. I have tried different power cords, different USB 2.0/3.0 slots on a Linux laptop, Windows laptop, Mac Mini and Rasperry Pi, turned on developer mode to no avail. The few things I do see that both devices when plugged into an outlet they say Charging (AC). Once unplugged and plugged into a USB port the nav title bar hides and comes back with the battery icon with a red X and stating discharging. I have yet to find a fix for either.
- Samsung Galaxy Tab 3 10.1" 2013 GT-P5210ZWYXAR 4.2.2 Build JDQ39.P5210OUEAMK1
- Samsung Galaxy Note 8 8.0" 2013 GT-N5110ZWYXAR 4.1.2 Build JZ054k.N5110OUEEMF2
Not a fix. Just a possiable answer.
I own two Samsung devices and they both have the same issue. I have tried different power cords, different USB 2.0/3.0 slots on a Linux laptop, Windows laptop, Mac Mini and Rasperry Pi, turned on developer mode to no avail. The few things I do see that both devices when plugged into an outlet they say Charging (AC). Once unplugged and plugged into a USB port the nav title bar hides and comes back with the battery icon with a red X and stating discharging. I have yet to find a fix for either.
- Samsung Galaxy Tab 3 10.1" 2013 GT-P5210ZWYXAR 4.2.2 Build JDQ39.P5210OUEAMK1
- Samsung Galaxy Note 8 8.0" 2013 GT-N5110ZWYXAR 4.1.2 Build JZ054k.N5110OUEEMF2[/QUOTE]
Android 4.4.4 CM 11S USB Charging Issue Resolved
Hi,
I had the same problem with my OPO. My previous device was JellyBean and I could charge even when it was connected as Mass Storage.
My new device used to connect as MTP by default and hence would not charge. I charge it from my work PC which has blocked media transfer through USB and that was the real problem. When I uncheck MTP and connect my device, it would charge. Since my Home PC has no such settings there is no problem when I connect it to that.
I have only seen one thread about USB 3.0 and airplane mode so far. This bothers the hell out of me. Does a ROM or preferably an Xposed module exist to disable forced airplane mode.
Does the hardware REQUIRE airplane mode? Is my Verizon Note 3 USB 3.0 better than other carries Note 3 USB 3.0 because of this airplane mode? Essentially I have seen a couple of confirmation threads saying "Yes it requires airplane mode," but none that tell me WHY.
SO....... Why is airplane mode necessary?
I'm going out on a limb here and say the reason behind airplane mode is power. USB 3.0 uses a ton more power than traditional usb 2.0. That being said... The phone also uses less power in airplane mode as it isn't searching for service. Power=battery life.
Do not quote me on this as it is just an assumption. It may actually be a blessing in disguise. Just a nice little tweak to keep the battery performing at max capacity.
On second thought. As I typed this ibrealized that the phone will still get power from the usb port on a computer...... Yea. We need a fix for this.
Sent from my SM-N900V using xda app-developers app
Me too USB 3.0 Airplane mode WTF?
I also find this incredibly annoying.
Also has anyone here actually got USB 3.0 data connection working on the SM-N900V?
I cannot get it to work in USB 3.0 mode.
I used the supplied cable, a retractable USB 3.0 cable. Both work fine with MTP in USB 2.0 but I can't get any of three diffrent PC's with USB 3.0 ports to actually connect with USB 3.0!
This was a selling point for me on the phone and it has never worked. What am I missing? Or is it a broken feature?
And yes a Xposed module to disable this would be tits. Other vendor's models of the Note 3 don't force this...so what gives Verizon.
tw3ak.
tw3ak said:
I also find this incredibly annoying.
Also has anyone here actually got USB 3.0 data connection working on the SM-N900V?
I cannot get it to work in USB 3.0 mode.
I used the supplied cable, a retractable USB 3.0 cable. Both work fine with MTP in USB 2.0 but I can't get any of three diffrent PC's with USB 3.0 ports to actually connect with USB 3.0!
This was a selling point for me on the phone and it has never worked. What am I missing? Or is it a broken feature?
And yes a Xposed module to disable this would be tits. Other vendor's models of the Note 3 don't force this...so what gives Verizon.
tw3ak.
Click to expand...
Click to collapse
Yes. I am using USB 3.0. Most of the problems I faced were related to Windows 7 Ultimate recognizing my new USB3.0 PCIe card and unsigned drivers. What a friggin nightmare. In the end, i had to install/uninstall the drivers from device manager several times. I also had to manually delete my old USB root hub crap left over from my old USB2.0 hub.
I still don't get it. USB 3.0 is awesome fast, but MTP and PTP are not very fast for indexing thumbnails of images. If i want to copy 1GB of images, it is fast, but if i want to scroll down half way and find one image visually, it is painfully slow.
Plus Verizon activates USB3.0 in airplane mode. If left unattended for 5 minutes, it will deactivate USB3.0 and turn radio back on. WTF is that crap?
This a rather specific issue, but none of the forums for my car were able to give me an answer. I drive a 2013 Hyundai Sonata GLS.
So I just recently switched from iPhone to Android, and I have been having a **** of a time getting the phone to connect to the car via the USB port in my 2013 GLS. With my iPhone, it was as simple as plug n play...not so much with the Android (it's a Verizon LG G2, for what it's worth), as every time I plug in the USB cable, I get "Connection Error" on the screen, and then it just switches back to whatever audio mode I was in before.
I know the USB port actually says "iPod" underneath it specifically, but the owner's manual vaguely hints at a universal USB music mode...I've gone through the menus and tinkered with some of the options, but am unable to find a solution. I really do not want to use Bluetooth. I will buy a car charger and aux cable and just have two connections if need be, but I gotta believe there's a way to have a non-iOS device hooked up through the USB port and be able to play music through it. I don't even need metadata to show up on the screen, just a simple connection would do it!
I am running AOKP 4.4.2. This issue persists even with MTP USB mode activated.
I recently got a new portable dac/headphone amplifier (Sony PHA-3) and can't seem to get it to work with my OPT. I run the OEM usb-c to usb-a cable to the input of the PHA-3 but sound keeps coming through the speaker at the bottom of the phone.
Developer option to disable usb audio routing is OFF, and even if I try to toggle the usb configuration to "audio source" I still don't get any sound (though sound stops playing through the speaker).
Using resurrection remix v6.0.1_r52-MOB30R.
So far I have been unable to locate any sort of usb otg settings to enable if that makes any difference...
Also, when using the app USB Audio Player Pro I get an initialization failure, so maybe it's something the ROM just doesn't support?
Sent by means of the Electric Internet
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Sent by means of the Electric Internet
More likely the kernel that must support or at least have drivers for the DAC device built-in, in normal Linux you would type dmesg to see what gets detected and make sure the proper module gets inserted for device support, but this is Android so no such thing. Maybe you could check with Boeffla to see if he knows how to include this?
Same issue here. Looks like OP2 don't support external USB DAC.