Hello all,
I was facing issue when I attach my usb drive to my phone through otg that when I'm coping anything to usb it was disconnecting from itself, tried many otg devices and also changed my usb drive and still the problem exists, after too much time search I found strange fix for this problem but worked at last, The fix is to turn on (Airplane mode), I don't know how and why sim cards affect otg but at all my otg works great and coping 10 GB for 1hr without disconnecting issue
Also, make sure that the following apps have no Battery optimization limit: File Manager, External Storage, MTP host, System UI, and also the app you use to copy files. To make this on MIUI 11 go to Settings, Password&Security, Privacy, Special Access, Battery optimization, and then Show all app and make all app mentioned (Not battery optimized)
Also make sure that System UI app has all notification is show and has high priority.
magaedy said:
Hello all,
I was facing issue when I attach my usb drive to my phone through otg that when I'm coping anything to usb it was disconnecting from itself, tried many otg devices and also changed my usb drive and still the problem exists, after too much time search I found strange fix for this problem but worked at last, The fix is to turn on (Airplane mode), I don't know how and why sim cards affect otg but at all my otg works great and coping 10 GB for 1hr without disconnecting issue
Also, make sure that the following apps have no Battery optimization limit: File Manager, External Storage, MTP host, System UI, and also the app you use to copy files. To make this on MIUI 11 go to Settings, Password&Security, Privacy, Special Access, Battery optimization, and then Show all app and make all app mentioned (Not battery optimized)
Also make sure that System UI app has all notification is show and has high priority.
Click to expand...
Click to collapse
it worked for me just one time and not work again, im tired to turn OFF and ON my device and connected and disconnected usb many time to work . it was bug xiaomi (my phone is Poco F3)
Related
Is there a minimum battery level for OTG support to work?
I have OTG support on my Mediatek Blackview BV6000 which works very well.
However, sometimes when I connect say a hard drive to my phone (via OTG) the hard drive doesn't start and the phone doesn't see it.
This seems to happen when the battery level drops below 70%, but I'm guessing.
This happened again recently so I went and charged my phone and the OTG support came back.
I'm wondering if this is due to some internal mechanism built into Android 7 or the phone where OTG support is stopped when the battery level drops below 70%. Has anyone ever heard of this?
If so, is there any way around it?
I recently learned to use a 'Terminal apk' to change the internal settings of my phone to allow my 'file manager' to see my hard drive when attached to the phone. It now works great. I was hoping that there would be a similar method to override this 70% limit for OTG support if that is in fact the problem.
Can anyone help?
I am using my USB to USB-C Cable form my Nexus 5X, which works flawlessly with that one.
With the Pixel, however, I don't get it showing up in Transfer mode (as a drive).
When using PTP mode it becomes visible, but of course only showing picture folders.
Cable works 100% fine as far as I know, also with the Tool-All-In-One etc.
Any idea how enable USB-Transfers from PC to Pixel3?
fronten said:
I am using my USB to USB-C Cable form my Nexus 5X, which works flawlessly with that one.
With the Pixel, however, I don't get it showing up in Transfer mode (as a drive).
When using PTP mode it becomes visible, but of course only showing picture folders.
Cable works 100% fine as far as I know, also with the Tool-All-In-One etc.
Any idea how enable USB-Transfers from PC to Pixel3?
Click to expand...
Click to collapse
When the pixel3 is connected did you look in the settings to see what USB mode is selected? You might need to change the mode to File Transfer. Also you have to unlock the phone after connecting it before it shows up. I'm not near a computer so I can't give the exact details.
EDIT: When the phone is connected go to Settings/Connected Devices/USB. Then in the section "Use USB for" make sure File Transfer is selected.
Thank you for the reply.
There's a "Yes" to all of that: USB mode is "Transfer Files", set directly via Setting but also checked on unlocked screen.
PC explorer shows Pixel3 in PTP mode (images folders only), which vanishes completely when switching to file transfer mode.
With Pixel 3 we are able to change which device controls USB connection, - i can't change this for this connection, it stays in "This device" (P3), "other device" (does this mean PC?) fails and reverts to "this device".
Is this a setting relevant only for Phone-to-Phone connections?
My Pixel 3 is doing this now with Android Auto after I got the February update. I can't change USB mode and Android Auto only launches on my phone instead of my car head unit. If I try to manually change the the USB mode to anything other than charging it immediately resets like nothing happened. If I change the control type to "other device" it reverts to "this device" and grays out the option.
I have tried a few cables, two different cars, and enabling USB Debugging but nothing helps. I think Google did this and we might have to wait on a fix.
As a follow-up, I've seen some people with this issue fix it by getting a USB C cable that is 65 ohm, or getting a USB 3.1 SS+ cable. I have one on order and will update when I receive it.
zeropants said:
As a follow-up, I've seen some people with this issue fix it by getting a USB C cable that is 65 ohm, or getting a USB 3.1 SS+ cable. I have one on order and will update when I receive it.
Click to expand...
Click to collapse
Thank you!
So this is a confirmation that this indeed is a bug needing some fix?
I did a quick look around and couldn't really find such a cable - what would I search for specifically?
I did not get confidently lucky with 65 ohm, USB 3.1 or SS+ terms..
(Also, i am quite sour about Google not including an USBCtoA connector.)
fronten said:
Thank you!
So this is a confirmation that this indeed is a bug needing some fix?
I did a quick look around and couldn't really find such a cable - what would I search for specifically?
I did not get confidently lucky with 65 ohm, USB 3.1 or SS+ terms..
(Also, i am quite sour about Google not including an USBCtoA connector.)
Click to expand...
Click to collapse
From my view it's a bug, but I don't have much to confirm with, just personal experience. I'm going to re-check Apple Carplay too to make sure it's not a vehicle fault.
Another failure.
So far I've tried 4 cables, including a USB-C 3.1 cable. I've tried 2 different cars with Android Auto support. No combination has enabled AA on the cars head unit.
I plugged my Pixel 3 into a laptop work USB 3 support and it connected to file transfer.
As a follow up, my wife's iPhone XR connects to Car Play almost instantly.
I found out my issue is specifically with Android Auto, and I have since fixed it. I had to remove all system updates to Android Auto and let it update and setup from scratch.
I finally managed to get my Pixel 3 recognized for file transfer.
Device manager showed a problem with the Portable Device - MTP device (yellow attention sign). I tried to update that driver, failing, even with the one from google directly .
However, i got the hint that missing system update (Windows) might be the culprit.
So I checked, installed the 2 it showed, and .. .. Pixel 3 showed up in device and file manager.
Hello All,
I stumbled upon a problem with my Mate 30 pro. When using a USB stick and or USB card reader I can only select "use USB to reverse charge". When selecting the other options like transfer photos or transfer files the selection jumps after 2 sec back to reverse charge.
I use File manager to transfer pictures from my phone to my computer via a stick and due to this it fails to do this, well it fails to transfer pictures from my phone to my USB stick, from the stick to the phone works...
Using the internal file manager then it works...uninstalled file manager rebooted the phone and reinstalled did not solved my problem. I prefer to work with the file manager from play store and not the internal one...
Google play store is on the latest version, well the same version like on my mate 20 pro.
Just realized that my mate 20 pro is doing exact the same, but there transfer files/pictures from phone to USB stick works.
Have u tried developer options - USB debugging?
viruz1225 said:
Have u tried developer options - USB debugging?
Click to expand...
Click to collapse
Yes I did, also tried to change the same setting - USB config - in the developer options but there it also reverts back to charge only.
I see the exact same automatic return to "Reverse charge" after 2 seconds using OTG, but I can use the internal file manager, so I am not
bothered so much by that. What bothers me is that I want to charge normally (opposite of "Reverse Charge") using OTG since I am using
"Accessory Charging Adaptors" (i.e., I am using an OTG USB Hubs with a power supply included). After many experiments, I see no way to
simultaneously charge my Mate 30 Pro and use an OTG device - Has anyone found a way to do this?
If ACA doesn't work, then chances are that your USB controller driver doesn't have it implemented
[KERNEL] (Patch) USB OTG (host mode) + simultaneous charging!
(I really struggled with where to post this. Although much work and effort went into debugging unique Z5-specific issues, this is based on prior work so I put it here instead of in "original"; also, I would be very surprised if this didn't apply...
forum.xda-developers.com
For some reason I can't connect my Pixel 4a to my PC with a USB C - USB A cable (or USB A - USB C, not sure what the official name is) , even though it worked fine on my previous phone.
Included with the phone is a USB C - USB A adapter, but I see no use for it unless you have a special USB A cable which I don't.
My motherboard does have a USB C slot on it and it does read my phone when I plug it in that way but for some weird reason it's really loose and doesn't stay connected unless I keep physical pressure on it.
I'm not going to update to Android 11 until the November update because I've heard the current build has a few bugs, but does anyone know if Android 11 fixed the USB C - USB A issue?
Have you made sure to switch to file transfer mode? It defaults to 'no transfer' mode when I plug into my laptop.
Most likely you need to toggle the phone connection settings to data transfer, originally it will be set to charge only I think.
WAusJackBauer said:
For some reason I can't connect my Pixel 4a to my PC with a USB C - USB A cable (or USB A - USB C, not sure what the official name is) , even though it worked fine on my previous phone.
Included with the phone is a USB C - USB A adapter, but I see no use for it unless you have a special USB A cable which I don't.
My motherboard does have a USB C slot on it and it does read my phone when I plug it in that way but for some weird reason it's really loose and doesn't stay connected unless I keep physical pressure on it.
I'm not going to update to Android 11 until the November update because I've heard the current build has a few bugs, but does anyone know if Android 11 fixed the USB C - USB A issue?
Click to expand...
Click to collapse
I had this issue too. Windows file explorer would just crash after one or two files and stop transfer, no matter the size and type. (Yes I had file transfer selected on my phone ?)
Then windows update gave me a driver called "Google Inc. - Other Hardware - Kedacom KDB Composite Interface". I also updated to the newest firmware on the phone. No idea which of these did the trick or if it was the combo. However. Smooth sailing now ??
Hope this helps
(If windows update refuses to give you the driver, you can get it from Microsoft's update catalogue online. A Google search will do)
Ok it's completely messed up. When I search for USB settings it doesn't let me change anything at all, even though when I first got the phone I could and I changed it to transfer files. EDIT: No actually the setting that I changed was a developer option called "Default USB configuration" which I changed to transfer files but that still did nothing.
I just plugged in my phone and looked for the USB setting in the notification area but it wasn't there, but I noticed an option called "manage"
I went in there and noticed this. (see attachments) it's locked to be off and I can't change it. Very odd.
WAusJackBauer said:
Ok it's completely messed up. When I search for USB settings it doesn't let me change anything at all, even though when I first got the phone I could and I changed it to transfer files. EDIT: No actually the setting that I changed was a developer option called "Default USB configuration" which I changed to transfer files but that still did nothing.
I just plugged in my phone and looked for the USB setting in the notification area but it wasn't there, but I noticed an option called "manage"
I went in there and noticed this. (see attachments) it's locked to be off and I can't change it. Very odd.
Click to expand...
Click to collapse
You're in notification settings. Try short tapping rather than long tapping to get the menu to pop up allowing you to select data transfer.
Changing default USB settings in developer options doesn't work for me either.
GoldElocks said:
You're in notification settings. Try short tapping rather than long tapping to get the menu to pop up allowing you to select data transfer.
Changing default USB settings in developer options doesn't work for me either.
Click to expand...
Click to collapse
My point is that the notification that normally comes up when you plug in your phone to a computer to change to data transfer, charge only ect ect isn't even coming up because the firmware is stopping that notification from coming up altogether and I can't change it so it does.
WAusJackBauer said:
My point is that the notification that normally comes up when you plug in your phone to a computer to change to data transfer, charge only ect ect isn't even coming up because the firmware is stopping that notification from coming up altogether and I can't change it so it does.
Click to expand...
Click to collapse
Almost certainly a cable or host port issue. Swap cables and see what happens. Same for hosts/host ports. You're not going to have toggling options if the phone does not 'see' all expected lines/pins.
I had the same issue and changed to a different cord to fix the problem.
You have an non certified cable it seems, I've confirmed this pixel 4a works with only certain cables for usb transfer, also the usb a to c cable you have will not charge the device as well.
Get a cable from know manufacturers like Samsung, it worked for me.
Yeah turns out it was a cable. Strange how my cable worked with my old phone but not with the Pixel 4a
Had this issue with my new 4a just now. Cable was fine, even used the new cable that comes with it using a Usb C to Usb A adapter. Nothing worked. Upon opening Device Manager I found a new device called 'Kedacom USB Device'. After trying random things, I decided to uninstall the current drivers by right clicking on it and clicking 'Uninstall device'. Suddenly the phone connected, and even showed the adb prompt.
So for anyone still facing this issue, hopefully this solution might help
I updated to android 11 and magically it no longer allows me to access the device via usb C cable.
It chrages, and fast charges just fine, but the phone never sees a data connection and the pop up to change to file access for internal memory never appears.
I've tried the debug menu, default USB configuration (and it does nothing).
I've also tried turning on USB debuggin, revoking USB debugging auth, and tethering acceleration, and every possible combination of all the settings.
The cables are good, and I use them on a cracked moto g stylus and a moto power. Needless to say I have multiple cables and I've tried all of them.
The stylus just does not ever ask if I want to switch to file access mode, it is like it never accepts a data connection of any kind.
I've also cleaned the port and air dried it.
Is there a way to fix this so I can access it's internal storage?
Where is the setting to pop up changing it into MTP mode?
My last resort will be a complete format and reset of device but I know this is just a simple setting hidden somewhere.
Any help is appreciated...