P10 - reverse charging disable - Huawei P10 Questions & Answers

Hello,
is there any way to disable reverse charging on P10. I use usb c to micro usb cable to connect DAC Fiio Q1 mk.2 it works great, but phone charges the DAC. So it limits the useability, because of fast discharge. I also tried classic OTG cable and micro USB OTG cable with original Huawei reduction, both with same result = reverse charging the DAC. In developer settings is default USB mode set to MTP. After plugin it goes to reverse charging and after setting it back to MTP in status bar it stops charging due to DAC but after 2 sec. it starts again.
Is there any way to disable it in software? Because on head-fi Fiio engeneer wrote how to solve it trougth cable mod.
But software solution will be much easier.
Thanks.

I have this same issue can someone help please?!

Related

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
Click to expand...
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.

Disable USB Charging?

I am trying to disable USB charging to use my drone.
As of now, the controller charges the phone which in turn drains the battery on the controller.
I used to run this drone on a Note 5 that could be rooted and would disable USB charging by "batt_slate_mode 1".
This is the N960U, USA variant which cannot be rooted. If I change the USB setting in the drop-down or in developer menu it automatically reverts to charging when the controller is connected.
I know it's possible but I am not 100% sure it is possible without root but I will state the facts and hope that someone with knowledge and skills sees this.
Things I know:
-batt_slate_mode 1 will disable charging and the drone controller will not re-enable it.
-The Sprint Variant of the N960U has a hidden data menu "##DATA#" which has an option for USB Charging Disable (see attached)
So clearly it's possible on the phone itself but possibly might be locked out by carrier circumstances.
I use an OTG (ON THE GO) cable. Is this what you are using? I have an AT&T Note 9 & have never had the issue you describe. I use it with my DJI Spark controller.
Cable Matters 2-Pack Micro USB OTG Adapter (Micro USB OTG Cable) 6 Inches https://www.amazon.com/dp/B00GM0OZ4O/ref=cm_sw_r_cp_apa_i_QgMpDbVQX7EWT
Sent from my SM-N960U using Tapatalk
jd14771 said:
If I understand right, you are connecting the controller over USB with the usb-c to usb-a adapter?
Since the controller has its own power, could you buy a sacrifical USB cable and disable the power pins, leaving only data? Basically the reverse version of a charging only cable that has no data pins.. would be a hardware type solution as opposed to software since we have unrooted phones
Click to expand...
Click to collapse
Yes a USB-C to USB-A cable.
Any idea which pins / wires to disable?
Actually, from what I read, devices need the voltage from the power pins to detect the USB etc.
So I think if this were to work it would involve a resistor or something similar.
Further advise is welcome. lol

USB C audiooutput & USB-DAC

Hello!
Maybe someone know, how to use USB C audio adapter with Realme X2 Pro?
I tried to turn on USB OTG, but it not doing anything.
Adapter: Baseus Type-C Male To Type-C Female +3.5MM Female Adapter L40
How I can see, it has audio chip inside, and working like DAC, maybe.
Sorry, I have no rights to post links.
I just got the Meizu USB c amplifier today, and I had a hard time getting it to work as well. I also turned on USB OTG, then after plugging it in, taking it out, and putting it back in again, the phone recognized it and I could get audio over USB c.
It may not work for you, but also try flipping the connector over. That may help as well? I'm not sure what got mine working, to be honest, but it did work eventually.
Sorry, it's not working for me.
Also, yesterday I tried to use usb flash throw otg - it's work fine.
Try the usb configurations from developer options
Set it to Audio source

Help debugging/configuring my custom AA/AM install's USB device network?

Hi all - I'm finishing up installing a 2019 Samsung Tab A 10,1 into my Chrysler 300C. Everything is great, except that my USB SSD drive kills the battery when in standby. Let me detail the build:
Samsung Tab A 10,1 > USB C > Kingston Nucleum USB hub
- This is the only connection into the tablet. The hub is powered from a 12v USB point with USB 3.0 QC and a USB-C PD port. Pass through charging wakes the tablet up as the accessory power energises. Once turned off, the tablet renegotiates power supply arrangements and starts to deliver this to the hub itself. At least, that's my understanding.
Connected to the hub is a 512GB Sandisk SSD (USB 3.0), a Meizu Pro Hifi DAC (USB C) and an external USB 3.0 socket.
Is it possible to have the tablet either unmount the SSD whilst not powered (the SSD might still draw power even even unmounted?) or preferably not take on the role of being the supplier of power to the USB hub? Alternative suggestions are of course welcomed.
Prostheta said:
Hi all - I'm finishing up installing a 2019 Samsung Tab A 10,1 into my Chrysler 300C. Everything is great, except that my USB SSD drive kills the battery when in standby. Let me detail the build:
Samsung Tab A 10,1 > USB C > Kingston Nucleum USB hub
- This is the only connection into the tablet. The hub is powered from a 12v USB point with USB 3.0 QC and a USB-C PD port. Pass through charging wakes the tablet up as the accessory power energises. Once turned off, the tablet renegotiates power supply arrangements and starts to deliver this to the hub itself. At least, that's my understanding.
Connected to the hub is a 512GB Sandisk SSD (USB 3.0), a Meizu Pro Hifi DAC (USB C) and an external USB 3.0 socket.
Is it possible to have the tablet either unmount the SSD whilst not powered (the SSD might still draw power even even unmounted?) or preferably not take on the role of being the supplier of power to the USB hub? Alternative suggestions are of course welcomed.
Click to expand...
Click to collapse
You can use tasker to recognize usb charging on/off and when tab is gonna lose usb charging set it to power off. Unless tab can deliver power from usb even if its off, than you should search for another solution.
For tasker help go to Tasker tips & tricks section on XDA.
Good luck.
Sent from my Galaxy Tab 2 3G using XDA Labs
Thanks for the input! I'll have a look into Tasker. I'm guessing that when you say "power off", the tablet itself is not being shut down....after all, waking an Android device from cold is somewhat annoying to have to do manually every time one starts the engine. Currently Auto Mate wakes the tablet on a USB charging condition and instantly opens the main screen. Very convenient. Hopefully Tasker can integrate into this setup without conflicting with the functionality that works right now! I'll keep this thread updated with what I find, actions taken, etc. so that anybody else going down the path I have doesn't have to ask or chase themselves....
Cheers.
Okay, first impressions. It seems that Tasker might be able to do this but as stated, I suspect that it may conflict with the functionality of Auto Mate. After installing the demo version of Tasker and creating a basic Profile/Task to test detection of USB charging removal (beep, not sure if can/how to unmount yet) Auto Mate no longer autostarts when plugging in USB charging. That bit is somewhat of a backward step before we've even started to move forwards
I'll keep testing and experimenting and hopefully things will fall into place a little better.

USB OTG and Wireless Charging

I'm trying to set up an Octoprint server on my old Note5 and as a result I need to be able to charge while using an OTG cable. I figured out that whenever I plug in a cable into the micro usb port, it disables wireless charging. Is there any way to override this?

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