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[Q] An app to make my phone act like a USB flash drive

I have a galaxy s, running android 2.2, and I was wondering if there is an app I can get which would make my phone emulate a USB flash drive, when the micro USB is plugged into the top.
The reason for this is I have USB input for my car stereo, as well as iPod/iPhone and all that fancy stuff, however that doesn't help for the phone I have. So I would like to be able to somehow 'fool' the head unit into thinking there is just a USB flash drive plugged into the USB input, but instead, it's actually the phone through the micro usb to normal usb cable. The head unit could then play music that is stored on the phone (hopefully by me selecting which directory to use as the emulation)
Is there anything like this around?
Thanks
Denno

I thought every Android device can do that. Just connect device, tap new notification and select enable. I have used G1 with my Samsung TV, so it works well with non-PC devices.

Is there anything special you need to do on the phone or on the tv to get to the location of the media files?

Brut.all said:
I thought every Android device can do that. Just connect device, tap new notification and select enable. I have used G1 with my Samsung TV, so it works well with non-PC devices.
Click to expand...
Click to collapse
I dont think it comes up with that option unless its connected to a computer. Like when you plug it in to charge it, it doesnt let you mount the sd card.
To OP, if your stereo allows you to plug into the headphone jack, you can use the music player to play the music and it will go to your car that way. I havent seen an app that will fool the phone into thinking its plugged into a computer or similar. Good idea though, I could see where an app like that would be useful.

It's not the phone that I want to trick into thinking it's plugged into a computer, it's the head unit. I want it to think that it's connected directly to a normal USB flash drive.
Unfortunately there is only USB and iPod inputs, no 3.5mm jack. I could hack one together, but I would much rather an app so everything stays neat lol.

denno020 said:
I have a galaxy s, running android 2.2, and I was wondering if there is an app I can get which would make my phone emulate a USB flash drive, when the micro USB is plugged into the top.
The reason for this is I have USB input for my car stereo, as well as iPod/iPhone and all that fancy stuff, however that doesn't help for the phone I have. So I would like to be able to somehow 'fool' the head unit into thinking there is just a USB flash drive plugged into the USB input, but instead, it's actually the phone through the micro usb to normal usb cable. The head unit could then play music that is stored on the phone (hopefully by me selecting which directory to use as the emulation)
Is there anything like this around?
Thanks
Denno
Click to expand...
Click to collapse
I did it with one of my friends phones a while back. Plug into USB on the head unit and android should ask you if you want to 'charge only', 'mount as disk drive' etc. Just choose 'mount as disk drive' and the head unit will have access to all the folders on the SD card.
The folders with music in them are listed on the head unit's screen and you go from there.
Maybe it's less of a phone problem and more of a 'that particular head unit' problem.

Oh cheers chjade84, if that's the case, I might go try that now... Who cares if it's 3.44am :/ haha

I'll be interested to know if you get it working.

No good . I tried both with USB debugging on, and with it off, and both times the head unit said Device Error when I selected USB as the source.. Bugga, not going to be an easy solution lol. Surely there would be a way of making the phone 'behave' like a flash drive when I plug in the micro usb (and subsequently select the app to do the fooling).. I wonder how hard it would be to program something like this myself... Probably too hard lol.

when I say debugging, I mean with the usb connected. I have debugging turned on on my phone, so I get a different screen to that in the video posted above. So I don't mean turning debugging on and off, I simply mean 'connecting usb storage', and not having it connected.. if that makes sense..

denno020 said:
It's not the phone that I want to trick into thinking it's plugged into a computer, it's the head unit. I want it to think that it's connected directly to a normal USB flash drive.
Click to expand...
Click to collapse
Still you don't understand. Android works as normal USB flash drive already. But seems you can't use this mode, because Android does not detect, that it should enable it. cwill0303 is right, you need to somehow force-enable usb mode.

Oh i see, thanks for clearing that up, I didn't know android ran in that way..
Sent from my GT-I9000 using XDA App

You could try "Extended Controls" widget. It has a toggle for as "Mass Storage - enables and disables mass storage" although my EVO gives me the error "Your device does not support direct control of USB".
It's a paid app ($1.09) but it's well worth it for all the options it gives you for toggling stuff from your homescreen.
I don't know if it will help or not.
EDIT: See my next post before buying!

Do you have root? You could try to run this command from a terminal:
Code:
echo /dev/block/mmcblk0 > /sys/devices/platform/usb_mass_storage/lun0/file
I could confirm that it works on my G1 and it enables USB mode permanently - if I unplug phone and plug it back, it will mount automatically. So I think it should work even with device, which isn't recognized as a PC.
Few notes:
I think it requires root permissions.
You will have to disable USB manually. If you won't do that then most probably you won't have access to your SD-installed apps and it may drain battery.
If it will work, you should be able to create some widget or other method to easily enable/disable force-mount.
EDIT:
To disable force-mount run: "echo '' > /sys/devices/platform/usb_mass_storage/lun0/file"

Try this app.
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It's called Widgetsoid and it lets you toggle USB Storage - Connect/Disconnect SD card to PC.
And it's free!

I actually already had widgetsoid, so I tried with that widget, however it still didn't work. Still tells me 'device error' on the head unit display.
I do have root permissions, but I have no idea how to run terminals or anything, plus I think that's just going to be doing the same as the widgetsoid widget does...
I will have a look into the format type of the card and what the head unit can read...

Ok so I've just checked the file format of my sd card, and it's FAT32, which the head unit should be able to read.. So I'm out of ideas...

denno020 said:
I do have root permissions, but I have no idea how to run terminals or anything
Click to expand...
Click to collapse
https://market.android.com/search?q=terminal+emulator&c=apps
or you could install SDK on your PC and run "adb shell" command.
denno020 said:
plus I think that's just going to be doing the same as the widgetsoid widget does...
Click to expand...
Click to collapse
You need root to modify /sys/devices/platform/usb_mass_storage/lun0/file file and Widgetsoid doesn't need root for usb mount, so it definitely uses different method to enable it.

You could try to mount sd card from recovery. I know its an option on clockwork not sure about others.
Sent from my DHD

Having just gotten one of the Galaxy S family last week, they approach the USB options slightly differently from other Android devices (Due to Samsung's 'awesome' Kies suite, I believe). Assuming you're using Froyo, go to Settings/Applications/USB Settings and choose Mass Storage. Make sure debugging is disabled. That should trigger the regular Android mass storage interface when you plug in the microUSB cable.
It still might not play nicely though, most of those USB readers in stereos aren't good for reading anything bigger than ~4GB. Also, since the Galaxy S family have internal storage 'and' an SD slot, it'll mount as two mass storage devices instead of one, which may confuse things further.
Best of luck.
Sent from my Vibrant using XDA Premium App

Z5C not connecting in USB debug mode

Hi everyone
I'm just about to give up on trying to connect my Z5 Compact to my Windows 7 x64 development PC – I hope someone here knows something else I could try. I've searched the web for hints and information all week, and tried every suggestion I could find. I rebooted both phone and PC countless times, tried different USB ports and controllers, reset the phone to factory settings, installed and re-installed all the drivers I could find, cleaned up the Windows drivers cache, but I still cannot get my phone to connect or show up in ADB.
The connection works perfectly fine if the phone is not in USB debug mode. It shows up in Windows Device Manager as "Xperia Z5 Compact", I can browse the file system from Windows Explorer, etc. However, as soon as I switch on USB Debugging, Device Manager shows the phone as a non-working device "E5823". All the drivers that are supposed to work with this device refuse to install. I tried the drivers that come with Sony PC Companion, the Z5 Compact drivers downloaded directly from Sony Developer World (version from November 13th), as well as the generic Google Composite ADB drivers that come with the Android SDK, which other owners of the Z5 report should also work. For all of these drivers, Windows tells me that they're not compatible with the E5823 device in question. I can force-install any of these drivers against Windows' warnings by selecting them manually, after which the device will show up as working properly in Device Manager, but I still can't do anything with it – it won't show up as a device on ADB, nor do I ever get the key authorisation on the phone that usually shows up when connecting in debug mode. On the same system, I can deploy to other Android devices fine, including an Xperia Tablet Z and a Z1 Compact (I removed those drivers to make sure that they're not the problem).
I'm on Windows 7 Enterprise x64 SP-1 and my Z5C is on stock firmware 32.0.A.6.152.
I'm at a loss at what to try next and would be grateful for any help. Thanks!
Daniel

Try this maybe from : http://stackoverflow.com/questions/...t-show-my-xperia-z-got-proper-drivers-and-all
In case anyone else is still looking for a solution, this worked for me:
Download the device drivers from here http://developer.sonymobile.com/downloads/drivers/
Open the device manager, check whether your device name (e.g. C6903) is listed under "Other devices". If so, right click on it and select "update drivers", and use the ones you just downloaded. Done!
The problem is that the device connects as two separate devices when usb debugging is enabled on the phone, and windows didn't recognize the "debugging device". So I had to install the appropriate drivers manually.

ricodredd said:
Open the device manager, check whether your device name (e.g. C6903) is listed under "Other devices". If so, right click on it and select "update drivers", and use the ones you just downloaded. Done!
Click to expand...
Click to collapse
Thank you for the reply! Unfortunately, this one doesn't work for me…
I'm not sure about the phone showing up as two devices, the only one I see appearing in USB debugging mode is the E5823 one. When trying to update its drivers, Windows reports that it can find no compatible drivers in the folder extracted from the driver download on the Sony website. The same is true for the drivers folder of PC Companion and the Android SDK USB driver folder.
If I force Windows to install the drivers from the Sony website (showing up as "Sony sa0113 ADB Interface Driver", the warning will go away and the device properties say it's functioning correctly. However, still nothing works; no device shows up in ADB and I get no key acception prompt on the phone.

Very strange. I hadn't tried this myself with my Z5 but I just did now with no problem. Driver from Sony Dev site (Android SDK driver didn't work for me).
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Did you try enabling non-secure ADB via *#*#2673#*#*
Dunno what else might be causing this. Doesn't sound like your phone is encrypted - not that that would explain it either.
Sorry, I'm just a n00b at this.
Oh yeah, one last thing. Can you try on another PC? Maybe yours is messed up a little...

ricodredd said:
Oh yeah, one last thing. Can you try on another PC? Maybe yours is messed up a little...
Click to expand...
Click to collapse
Well, this turns out to be the problem! Thank you a lot for your suggestions.
I took to another PC to try the same thing, and the phone works fine using the Sony drivers. It shows up exactly as in your screenshot, under the "Sony sa0113" device category, got the key authorisation prompt and it immediately showed up in ADB.
I'm not sure where the problem with this first PC and USB is. It seems to be a software problem somewhere deep in the dungeons of Windows. The computer has two USB controllers with 4 ports each – I tried all of them, and several cables, which all work with other devices, but this phone simply won't register (and again, it's only in USB debugging mode that I have the problem, regular syncing and MTP file transfer work fine). So I would still be very appreciative of any hints, if anyone has ideas on what else I could try to fix it…
Thanks!

I'd definitely try properly removing possible conflicting drivers from your PC, like old Sony ones for a start. I use DriverStore Explorer [RAPR] to clear old drivers out.
Removing/uninstalling from Device Manager does not delete the files from Windows so if your Sony drivers are misconfigured somehow, they'll stay that way next time you reconnect your phone and Windows reinstalls them.

ricodredd said:
I'd definitely try properly removing possible conflicting drivers from your PC, like old Sony ones for a start. I use DriverStore Explorer [RAPR] to clear old drivers out.
Removing/uninstalling from Device Manager does not delete the files from Windows so if your Sony drivers are misconfigured somehow, they'll stay that way next time you reconnect your phone and Windows reinstalls them.
Click to expand...
Click to collapse
That's good to know. I was about to try the DriverStore Explorer, unfortunately I decided to go with another suggestion from someone at the office first, which was to reinstall the USB controller drivers.
He told me to remove the controllers from the device manager and reboot, at which point Windows would automatically reinstall them. Unfortunately, that didn't work, so instead of the USB controllers I now have to completely "unknown devices" which won't install at all. Windows doesn't find any drivers online or locally, and even the chipset and USB drivers that came with my mainboard don't work. So at the moment, not even my mouse and keyboard work anymore, and the only way I can currently control and try to fix anything at all anymore is by using TeamViewer on my phone as a keyboard and mouse replacement
It's probably safe to say that my mainboard is completely kaput at this point, and that this was most likely also the reason for the phone not working. I spent the entire afternoon today trying everything to get some USB functionality working again, without success. I don't think I have any other option than to replace the entire board now…

Yikes, that's a nasty tale! You should try a Windows repair install before scrapping the PC though. What have you got to lose?!

It's really just rather comical at this point. I figured out that I could at least get the mouse to work again by enabling USB Legacy mode in BIOS. The keyboard would still only work for the first few seconds on the Windows login screen though, and then just silently sign off. And the on-screen keyboard doesn't allow me to send the Ctrl+Alt+Del required to log in. All that doesn't really matter anymore now either though, because somehow after one of the last reboots my computer got kicked out of our network domain. Now it will only let me log in with a local administrator account anymore, to which I don't know the password. Every time I think it couldn't possibly get any worse... :silly:
At this point I don't think I can try anything anymore until I can get in touch with one of the guys administering the domain on Monday, because I can't even get close to accessing system restore from here. I'll actually just remove the hard drive and take it home with me, so I can at least access my files and work on my other computer...
Thanks for your help, I'll get back to this thread if after restoring my computer the phone still won't connect

OPO won't connect to PC in MTP mode.

I don't recall having this problem a few months ago when I tried this the last time so I think it might have been an update that made this happen.
Normally, in the notification bar I get a option to change the connection mode to the pc from "Charge only" to "MTP" or "Camera". However I don't get the notification this time. It will only charge my phone and it doesn't show up in my explorer.
I tried enabling USB debugging but for some reason it is greyed out as seen here:
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also when I try to change the connection mode manually through the "storage" menu I get this.
please help me.

1. Navigate to Settings > About Phone > scroll to the bottom > tap Build number seven (7) times. You'll get a short pop-up in the lower area of your display saying that you're now a developer.
2. Go back and now access the Developer options menu, check ‘USB debugging’ and click OK on the prompt.

drmuruga said:
1. Navigate to Settings > About Phone > scroll to the bottom > tap Build number seven (7) times. You'll get a short pop-up in the lower area of your display saying that you're now a developer.
2. Go back and now access the Developer options menu, check ‘USB debugging’ and click OK on the prompt.
Click to expand...
Click to collapse
could you please read the thread more carefully?
As you can see in the OP, I already did this.

Try using a different USB port and/or a different USB cable.

ryanmat said:
Try using a different USB port and/or a different USB cable.
Click to expand...
Click to collapse
I have tried this and it doesn't change anything tog the situation in the OP.

heulen said:
I have tried this and it doesn't change anything tog the situation in the OP.
Click to expand...
Click to collapse
have you try compare the same cable with different phone, if you had another phone, to make sure if its the cable problem or phone problem.
I do have similar problem with OPO original cable and recently a new remax cable, after sometime the usb connect function is stop working. Tried the same cable with my find 5 and its still not functioning. I do still wondering what caused that, because at first both cables usb function works normally.

si2kul said:
have you try compare the same cable with different phone, if you had another phone, to make sure if its the cable problem or phone problem.
I do have similar problem with OPO original cable and recently a new remax cable, after sometime the usb connect function is stop working. Tried the same cable with my find 5 and its still not functioning. I do still wondering what caused that, because at first both cables usb function works normally.
Click to expand...
Click to collapse
the problem also occurs when the phone doesn't have a USB cable inserted into it.

heulen said:
the problem also occurs when the phone doesn't have a USB cable inserted into it.
Click to expand...
Click to collapse
Errr, isn't that obvious ? If you don't connect your phone to USB/Data Sync Cable to PC then there's no notification about usb connection whether its charging, debugging or MTP

si2kul said:
Errr, isn't that obvious ? If you don't connect your phone to USB/Data Sync Cable to PC then there's no notification about usb connection whether its charging, debugging or MTP
Click to expand...
Click to collapse
yes that's right but then the usb cable can't really be the problem.

I have the same problem on a couple of different ROMs. I used to be able to use PDAnet and connect but now that doesn't even work.
I was finally able to update my ROM using an OTG cable and flash drive. A bit awkward but it works.

zulu657 said:
I have the same problem on a couple of different ROMs. I used to be able to use PDAnet and connect but now that doesn't even work.
I was finally able to update my ROM using an OTG cable and flash drive. A bit awkward but it works.
Click to expand...
Click to collapse
I use the standard rom that came with my OPO tho, shouldn't it always work?

heulen said:
the problem also occurs when the phone doesn't have a USB cable inserted into it.
Click to expand...
Click to collapse
heulen said:
yes that's right but then the usb cable can't really be the problem.
Click to expand...
Click to collapse
yes u might be right, i just pointed out that in my case, the cable was the caused. At first i thought maybe because of the rom, so i tested the same cable on different phone and tested different cables on the same phone, that's when i found the problem was the cable.
But i still wondering why i got two cables that at first every function (charging n data sync) works but then after sometimes only charging function works and i can't no longer used data sync function with the same symptoms as you.

heulen said:
I use the standard rom that came with my OPO tho, shouldn't it always work?
Click to expand...
Click to collapse
Got me... I have two OPOs, one always connects and the other one doesn't. I tried both OPO cables, two aftermarket cables with the same result. There must be a difference between the two but I have no clue what it is.

si2kul said:
yes u might be right, i just pointed out that in my case, the cable was the caused. At first i thought maybe because of the rom, so i tested the same cable on different phone and tested different cables on the same phone, that's when i found the problem was the cable.
But i still wondering why i got two cables that at first every function (charging n data sync) works but then after sometimes only charging function works and i can't no longer used data sync function with the same symptoms as you.
Click to expand...
Click to collapse
exactly, that's my problem. It used to work but no longer...
someone please help.

I do wondering is it because the cable can charge up to 2.1 mA, but still not sure about it.

Developer options ->scroll down there is an option for usb (must be something like usb format option, Greek for me )change it to mtp but it resets after u unplug the phone

S7 always asks for permission to allow data/MTP when connected to PC

My dad and I both got new Samsung Galaxy S7's (Sprint) over the weekend. Every time he plugs his phone into his computer, it always brings up the prompt "Allow access to device data - An MTP connection will be established to access the data on the connected device."
If he presses "Allow," it does NOT remember and asks him each and every time it is plugged in.
However, when I connected my S7 to my PC for the first time, I only had to press "Allow" once and it never asked me again after that.
It's a minor annoyance for him, but an annoyance nonetheless.
Things we've tried:
Rebooted Phone
Re-installed the official Samsung S7 drivers on his computer (straight from their website)
Enabled developer options on his phone and turning USB debugging on
Tried several different USB cables
Tried several different USB ports on his computer
I am no Android/S7 expert so I thought I would ask here. Is anyone familiar with this issue and know of any fixes? Hell, I'll even take wild shots in the dark at this point. Thanks in advance!

It does the same for me. Guess this is done intentionally by Samsung.
Sent from my SM-G930F using Tapatalk

Same here, super annoying.
I was happy that the S7 no longer had port flaps, so it got rid of the stupid message to close the port flaps that was displayed EVERY SINGLE TIME you unplugged the USB cable from it.
But now we have the MTP confirmation without adding known hosts to a whitelist.

Yep same here too I get asked every time. I've just learned to live with it although it is super annoying
Sent from my SM-G930F using XDA-Developers mobile app

i have same problem.i have another problem when mobile screen goes off my MTP file data transfer disconnect to PC .

Guess thats Android 6...had the same with my old Z5
Gesendet von meinem SM-G930F mit Tapatalk

I have a problem connecting S7 to Windows 10. "The connected device is unable to access data on this device. Reconnect the USB cable and try again". Actually it doesn't work. It always ask me to install MTP driver (I installed Samsung drivers before), but when I try to do that, it said it is already installed. Recent Windows 10 update made this mess, because on my laptop, I didn't update Windows 10 for a long time, probably since January or so and S7 is connecting without any problem. Grrrr ...

milicevic said:
I have a problem connecting S7 to Windows 10. "The connected device is unable to access data on this device. Reconnect the USB cable and try again". Actually it doesn't work. It always ask me to install MTP driver (I installed Samsung drivers before), but when I try to do that, it said it is already installed. Recent Windows 10 update made this mess, because on my laptop, I didn't update Windows 10 for a long time, probably since January or so and S7 is connecting without any problem. Grrrr ...
Click to expand...
Click to collapse
Same problem for me with Galaxy S5. I have one computer with windows 10 and another with windows 7. It connects to windows 7 no problem but won't connect to windows 10

milicevic said:
I have a problem connecting S7 to Windows 10. "The connected device is unable to access data on this device. Reconnect the USB cable and try again". Actually it doesn't work. It always ask me to install MTP driver (I installed Samsung drivers before), but when I try to do that, it said it is already installed. Recent Windows 10 update made this mess, because on my laptop, I didn't update Windows 10 for a long time, probably since January or so and S7 is connecting without any problem. Grrrr ...
Click to expand...
Click to collapse
Oli999 said:
Same problem for me with Galaxy S5. I have one computer with windows 10 and another with windows 7. It connects to windows 7 no problem but won't connect to windows 10
Click to expand...
Click to collapse
That's odd. I just had an S5 plugged into my laptop yesterday to access the internal storage and flash via odin. And I had my S7 plugged in as well for some file transfers. My laptop has had Windows 10 since the first day it was rolled out and downloaded automatically overnight. It has also been connected to the internet and had all updates installed automatically...

I received the message everytime I connect via usb to my pc. Recently I accidentally hit DENY at the prompt and now I can not access the files on my phone any longer. NOPE, I do not get the prompt any longer either to just be able to say allow!! WTH, I've been searching, no luck. I've found the USB debugging is on and the USB configuration is MTP, any other suggestions. All I did was hit the Deny, you think it would prompt again when I plugged in.

Enable Dev Option and tick usb debugging this worked for me !

I think it serves as a good security feauture
Imagine if you enable it premanently, someone could take your phone and plugin to another pc without unlocking and extract your personal data...
Sent from my SM-G930F using Tapatalk

muaaviya said:
Enable Dev Option and tick usb debugging this worked for me !
Click to expand...
Click to collapse
Nice tip. At least it works for me in the way that now only ask for permission once. Befere, just two times...last week, 7 or 8 times every time I plugged in!
I think that it was because of the Android Studio Adb driver, but no.
In windows 10, only asked the very first time and never more...in windows 7, as I mention before.
Lieutenantdaan said:
I think it serves as a good security feauture
Imagine if you enable it premanently, someone could take your phone and plugin to another pc without unlocking and extract your personal data...
Sent from my SM-G930F using Tapatalk
Click to expand...
Click to collapse
The security for that is the lock screen...no phone contents are shown if the screen is locked, but Android 6 added this another "allow/deny" method that is buggy by now.
Greetings!

You have to unlock the screen before plugging in the USB cable, then he won't ask permission again. They changed this behavior in some of the recent OS updates, because I remember that I could access files without unlocking first (just allow once for that PC). The only real solution for this is root, as always...

On Windows, it works fine. The ALLOW is remembered. But, on Linux, i have this popup EVERY TIME i plug in to PC... so annoying

trekketoo said:
I received the message everytime I connect via usb to my pc. Recently I accidentally hit DENY at the prompt and now I can not access the files on my phone any longer. NOPE, I do not get the prompt any longer either to just be able to say allow!! WTH, I've been searching, no luck. I've found the USB debugging is on and the USB configuration is MTP, any other suggestions. All I did was hit the Deny, you think it would prompt again when I plugged in.
Click to expand...
Click to collapse
wrong post sorry

This just started happening to me as well, and now copies from my pc to the micro sd card are SUPER slow. Irritating.

trekketoo said:
I received the message everytime I connect via usb to my pc. Recently I accidentally hit DENY at the prompt and now I can not access the files on my phone any longer. NOPE, I do not get the prompt any longer either to just be able to say allow!! WTH, I've been searching, no luck. I've found the USB debugging is on and the USB configuration is MTP, any other suggestions. All I did was hit the Deny, you think it would prompt again when I plugged in.
Click to expand...
Click to collapse
i have this same problem, were you able to fix it at all i cant get into my files

I had the same problem for months, it was really irritating, but then I updated the driver in device manager and solved the problem
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"lightbox_toggle_sidebar": "Toggle sidebar"
}

Switch off annoying MTP access popup
Finally found it in settings. Switch on Developers options in configuratien. Then there is a USB modus setting. Set it to Charging rather then MTP Transfer.

Can't connect via USB to Windows

This is the first Android phone I've had that will not properly connect to Windows. No matter what I've tried, I never get the "Use USB for file transfer" popup when plugging it in. I have USB debugging enabled in Developer Options.
I'm wondering if for some reason this phone CAN'T connect to Windows, although that seems unlikely. I did learn that this German variant I have (XT1955-2) cannot connect to 5G wifi.
No matter what I've tried, including trying various Motorola and non-Motorola windows USB drivers, the only thing that happens when I connect via USB is it's visible in windows an as Unrecognized Device.

Do you have an sd card? Is it portable or adopted storage?
Do you get the USB icon in notification bar?
Is it set for MTP is you tap that icon?

No SD card.
No notification in the notification bar.
I can't set to MTP because there's no setting available. When USB is plugged in, the phone is being charged, but there's no other indication it's connected to a computer.

FligMupple said:
No SD card.
No notification in the notification bar.
Click to expand...
Click to collapse
Weird. I'll try to double check and get screen shots, but the one here gives the normal USB icon in the notification bar to choose Charge, MTP, or PTP.
You could also try developer's mode and change the default mode (I think it's still there)

ST Dog said:
Weird. I'll try to double check and get screen shots, but the one here gives the normal USB icon in the notification bar to choose Charge, MTP, or PTP.
You could also try developer's mode and change the default mode (I think it's still there)
Click to expand...
Click to collapse
Were you ever able to double-check this?

FligMupple said:
Were you ever able to double-check this?
Click to expand...
Click to collapse
I think so, but then forgot to post/take pics.
It got really hectic for a few weeks.
I had to return it (the one it was to replace started working) so I can so it again.

Sorry to resurrect an old thread. I'm in the same boat. I have the Moto G7 Power (-2 Mexico edition) and I can't TurboCharge or connect to a computer anymore. Same cables/PC work with another G7 Power but not mine, so I know it's something to do with my phone. I did a full reset, no change. I tried going to USB Developer Options, enabled USB Debugging, nothing still. I also tried to set the default USB action to "File Transfer" but ended up in a OS bootloop, which prompted me to do a factory reset on the phone.
I think this is hardware-related to the USB port on the phone. As long as I've got bluetooth connectivity I'm fine but I'm definitely not happy with this phone so far.
If anyone comes up with a fix, I'd be happy to try it out.

sTr3utr said:
I tried going to USB Developer Options, enabled USB Debugging, nothing still.
Click to expand...
Click to collapse
While you had USB debugging on, did you connect? Try adb? Pull log files to see what was happening?
Are you using USB 2 or 3 ports on the computer? USB 3 has long been troublesome. Even Google devices https://support.google.com/pixelpho...hl=en&gpf=#!topic/phone-by-google/EBTGfybo9cw

I have had the same problem (trying to connect to Dell XPS, via a USB 3 adaptor with HDMI interface). Same symptoms; not able to activate the options in "Use USB for"
Luckily I tried disconnecting the USB 3 adaptor, and connected the phone (via cable) to laptops USB3 port. It immediately worked....

I hope this thread is still active. I'm having the same problem with a Moto G7 Power in the UK. No matter how I try I can't find any way of turning on the usb option for file transfer with a pc. I've even searched in developer mode and its not there nor are there options for mtp or ptp (I'm assuming I need these to connect to a pc) Help! I'm tearing my hair out here.

bohma said:
I hope this thread is still active. I'm having the same problem with a Moto G7 Power in the UK. No matter how I try I can't find any way of turning on the usb option for file transfer with a pc. I've even searched in developer mode and its not there nor are there options for mtp or ptp (I'm assuming I need these to connect to a pc) Help! I'm tearing my hair out here.
Click to expand...
Click to collapse
You don't have
Default USB configuration
In Dev options?
You have to scroll down aways
Sent from my mata using XDA Labs

sd_shadow said:
You don't have
Default USB configuration
In Dev options?
You have to scroll down aways
Sent from my mata using XDA Labs
Click to expand...
Click to collapse
I have scrolled down in Developer Options. I've also opened every control in Dev Opts to see if it was hidden somewhere but but its just not there. I'm now wondering if the phone has to be connected to the PC with a usb cable for this option to appear.

bohma said:
... I'm now wondering if the phone has to be connected to the PC with a usb cable for this option to appear.
Click to expand...
Click to collapse
No, and it's been in Dev options for several years in every phone I have.
Sent from my mata using XDA Labs
---------- Post added at 01:33 PM ---------- Previous post was at 01:27 PM ----------
It should be in the networking settings between WiFi and Bluetooth
Sent from my mata using XDA Labs
---------- Post added at 01:34 PM ---------- Previous post was at 01:33 PM ----------
Could try an app like
https://play.google.com/store/apps/details?id=com.magdalm.usbsettings
Sent from my mata using XDA Labs

I downloaded the app you suggested and have now received a message on the phone saying 'usb connected'. I was able to open Developer Mode and got much more options than when I opened it from the phone manually by tapping 7 times. I enabled usb debugging. However, the phone is not showing up under File Explorer on my PC. I am using the usb cable that came with the phone and have a feeling that it may be only for charging.

bohma said:
I enabled usb debugging. However, the phone is not showing up under File Explorer on my PC. I am using the usb cable that came with the phone and have a feeling that it may be only for charging.
Click to expand...
Click to collapse
USB debugging is for using adb, not what you need.
What you want is to set the default USB mode in the option mentioned to MTP/file transfer .
(Naming/order may vary, I don't have a Moto G7 handy)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

OK I followed your advice and finally found the correct option and setting. Thank you so much. As you must have guessed, I am totally new to the Android system and find it bewildering with all the different settings menus and sub menus. Without your help I never would have been able to do this. Thanks again.