Database Users

Problems connecting

I have a tmobile MDA Vartio2 and I have numerous problems with it and need to upgrade soon but this one I cant sort.
I can't connect via usb to sync with my laptop. If I set up a new connection it will sync but as soon as I reattach to sync it wont recognise the device so I can't keep everything up to date. it isn't the cables - power is fine and they work for other things.
I am runing it as I bought it 17 months ago - no upgrades or cooked roms or changes of any kind.
Can anyone help.
I want to upgrade to something else but I always sell my old ones so I want to sort the issue first obviously even if I sell it.

mobilecat said:
I can't connect via usb to sync with my laptop. If I set up a new connection it will sync but as soon as I reattach to sync it wont recognise the device so I can't keep everything up to date. it isn't the cables - power is fine and they work for other things.
Click to expand...
Click to collapse
Try turning off the 'advanced network functionality':
Start -> Settings -> Connections tab -> USB to PC
That's what I had to do to get that hack called activestin...^WActiveSync to work reliably via USB.
Really, I've not noticed any difference between having it on and off as far as functionality goes, so really, I have no idea what the RNDIS mode stuff is even good for.

I have just tried your suggestion but now it isn't recognising the device at all. It is seeing it as far as power goes - its charging over USB but activesync isn't seeing it.

mobilecat said:
I have just tried your suggestion but now it isn't recognising the device at all. It is seeing it as far as power goes - its charging over USB but activesync isn't seeing it.
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Click to collapse
Check activesync itself:
File -> Connection Settings
Make sure "Allow USB connections" is checked.
If that still doesn't work, I'd try the uninstall, reboot, reinstall activesync dance and see if that helps any, provided that you are using activesync under XP.
I'd also be suspecting the sync cable. Recharging a device and getting a data connection are two different things. I have a blue angel that wouls charge via the USB sync cable, but would not sync, XP kept complaining about an unknown device. Turned out it was a broken wire in the cable.

Done all of these already I'm afraid - I have 4 or 5 cables and none of them work for this - and I know they are all absolutely fine.

OK, let's take stock of things. I'm assuming that you are using XP.
Hermes with the advanced network functionality turned off doesn't show up at all when you plug it into USB. So, we have a lower level driver issue going on.
Provided that you have not turned off all sounds in your current sound scheme, does the computer make any noises when you plug the phone in? If the data side of the connector on the phone is in order, the computer will make some kind of beep noise when you plug in a USB device.
Also, have you looked at device manager when the phone is plugged in? With advanced network functions turned on, a network adapter should appear. With out the network bits, it should show up as an HTC USB Sync device.
To eliminate something on the phone software-side (I know, you said that you have not touched anything, but try it anyway, this is windows, the environment that gave rise to the term bit-rot), put the phone into boot loader and plug it in to see if the computer sees it. It should appear as a HTC USB Sync.
If it still doesn't show up, I'd be popping over to another computer and checking to see if the phone will be recognized by that system.

For the past few weeks when I plug in I get references to acquiring network addresses (like a wifi network) but then it does nothing. Now I get nothing at all when I connect apart form power.
I have already tried re-installing active sync (just done it again in case I did something wring too)
I refuse to beleive its my cables at this point because I have 3 in front of me that all worked perfectly before everthing suddenly went wrong. Unless someone had cut all of them at the same time - this couldn't have happenned.
I am going to try and plug into the pc and see what happens (as apposed to the laptop which should have the connection.

I think this is good news (on the part of my laptop) because its the same story on the pc.

mobilecat said:
I think this is good news (on the part of my laptop) because its the same story on the pc.
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Click to collapse
Double edged sword there...
So we have potentially eliminated the computers (good), this leaves the phone itself (non-good).
Hard reset?
Otherwise, I'd start to suspect the USB connection on the phone itself.

I would say that my chances of rescuing this phone rather than getting a new one are getting slimmer
I think it is probably the port itself and I can't do anything about that one
Anyone want to buy one with non usb syncing functionality ?

problem with usb connection?

Hi
My problem is that when I connect my sm-n900v to my laptop no usb icon showing up in notification bar device only charge.
I removed the driver and install it again not working.
I disable usb debugging not working and enable it not working
anyone know how to fix this problem?

I'm having the same problem. This started only after lollipop update. Device charges, but laptop does not "see" usb connection. Nothing in system tray. Nothing in device manager. Current version Kies just installed, but doesn't see phone when connected. Restarted both laptop and device disconnected and connected.
SM-N900V Android 5.0
Windows 7
Don't have a clue how to fix this. Any ideas? Thanks!

Thought I'd post my update. While my original USB 3 data/charging cord seems to charge flawlessly & quickly when plugged into the correct 12v OE wall charging adaptors, there is apparently a problem with data transfer. I think the cord I'd OK, but its loose when inserted into the port on the device. If I hold it JUST so, it works fine. I suggest patient cord manipulation to determine if this might be the problem for others as well. Might be hardware repair time.

stealthpaws said:
I'm having the same problem. This started only after lollipop update. Device charges, but laptop does not "see" usb connection. Nothing in system tray. Nothing in device manager. Current version Kies just installed, but doesn't see phone when connected. Restarted both laptop and device disconnected and connected.
SM-N900V Android 5.0
Windows 7
Don't have a clue how to fix this. Any ideas? Thanks!
Click to expand...
Click to collapse
stealthpaws said:
Thought I'd post my update. While my original USB 3 data/charging cord seems to charge flawlessly & quickly when plugged into the correct 12v OE wall charging adaptors, there is apparently a problem with data transfer. I think the cord I'd OK, but its loose when inserted into the port on the device. If I hold it JUST so, it works fine. I suggest patient cord manipulation to determine if this might be the problem for others as well. Might be hardware repair time.
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Click to collapse
Hi
I found this solution and it's work now
With the device plugged in:
Dial ##366633#(##DMMODE#)
Disable DM Mode
Disable USB Debugging Mode (Menu> Settings> Developer Options)
If you don't see Developer Options, Enable them by going to Menu> Settings> About Device and Tap "Build Number" 7 times. This will enable Developer Options.
Allow Drivers to load completely. This can take up to 5 minutes.
Device should now appear in device manager as Samsung Mobile USB CDC Composite Device
Now..With the phone still plugged in, turn off and turn on (Restart the device )
Again allow the drivers to load.
you will see the usb icon showing up in your device..
:good::good:

my hero.
AhmedEzzaldeen said:
Hi
I found this solution and it's work now
With the device plugged in:
Dial ##366633#(##DMMODE#)
Disable DM Mode
Disable USB Debugging Mode (Menu> Settings> Developer Options)
If you don't see Developer Options, Enable them by going to Menu> Settings> About Device and Tap "Build Number" 7 times. This will enable Developer Options.
Allow Drivers to load completely. This can take up to 5 minutes.
Device should now appear in device manager as Samsung Mobile USB CDC Composite Device
Now..With the phone still plugged in, turn off and turn on (Restart the device )
Again allow the drivers to load.
you will see the usb icon showing up in your device..
:good::good:
Click to expand...
Click to collapse
i knew i wasnt crazy and i had a usb menu show up on connect...btw a temp fix to not showing up, download more shortcuts, open app click activities -> click settings -> USB computer connection(Settings$UsbSettingsActivity) and select MTP or USB 3.0. You will have to do this everytime you unplug,(or set a shortcut on homescreen to open setting panel)

Phone stuck in Charging Only mode

Hi all,
I got a Mavic Pro Quadcopter yesterday, but I cannot get it to talk to my LG V20.
When I connect to the remote via USB cable the phone automatically switches to "Charging Only" mode. I have tried changing it to MTP (media transfer protocol) in both the pull down menu and Developer Options, but it immediately changes itself back as soon as I open the Mavic Go application.
Can anyone suggest a way to force my phone to stay in MTP mode? I really want to fly my new drone. Arrrgggg!
PS: It works OK on my rooted Samsung S2 9.7 tablet, but it does not fit in the remote mounting hardware. Unfortunately I have the H990DS v20, so root is not an option for me.

reaktor TuT said:
Hi all,
I got a Mavic Pro Quadcopter yesterday, but I cannot get it to talk to my LG V20.
When I connect to the remote via USB cable the phone automatically switches to "Charging Only" mode. I have tried changing it to MTP (media transfer protocol) in both the pull down menu and Developer Options, but it immediately changes itself back as soon as I open the Mavic Go application.
Can anyone suggest a way to force my phone to stay in MTP mode? I really want to fly my new drone. Arrrgggg!
PS: It works OK on my rooted Samsung S2 9.7 tablet, but it does not fit in the remote mounting hardware. Unfortunately I have the H990DS v20, so root is not an option for me.
Click to expand...
Click to collapse
your drone probably dosnt support the TYPE C connection, not the phone itself, im unsure how you could make this work tho, type c is a 3.0 connection, micro/mini usb 2.0. Probably a non-compatible connector for the drone sadly.
Just food for thought

Team DevDigitel said:
your drone probably dosnt support the TYPE C connection, not the phone itself, im unsure how you could make this work tho, type c is a 3.0 connection, micro/mini usb 2.0. Probably a non-compatible connector for the drone sadly.
Just food for thought
Click to expand...
Click to collapse
PROBLEM SOLVED! A software update from DJI fixed the issue. The phone still shows as connecting as 'Charging Only' but it now connects to the drone correctly. Full video and control functions.
There is still a problem where the software crashes every few minutes, but it seems most users experience this bug. I'm hoping a further software update will finally make this device safe to fly.

File Transfer from Laptop to XiaoMi A1

I am wanting to transfer music and photographs from my laptop to my XiaoMi A1. I cannot follow the youtube explanation at all.
I get to the "Index of" and the list of what is on the phone but there appears to be a leap between that and the next page.
Is there a simple way to connect the phone and laptop? I am using Windows 7.
Appreciate any assistance the group may be able to provide this technical incompetent

With Win7-10, when you plug in the usb cable, there should be a notification. Just open the pull down menu, tap the notification and select the "Transfer files" option and then you're all set to transfer files. The default setting in the USB notification is charging (and changing this in the developer settings doesn't seem to do anything). If you're attaching the cable for the first time on the phone, windows will automatically download a driver.

barrack1 said:
With Win7-10, when you plug in the usb cable, there should be a notification. Just open the pull down menu, tap the notification and select the "Transfer files" option and then you're all set to transfer files. The default setting in the USB notification is charging (and changing this in the developer settings doesn't seem to do anything). If you're attaching the cable for the first time on the phone, windows will automatically download a driver.
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Click to collapse
Hi, thank you for the response. Much appreciated.
There was no notification when I plugged in the usb cable
Unfortunately the driver did not download - it tried - so am now wondering as to how to go about doing that. Is there a specific driver?
Yes, I tried the developer options on the USB debug in the developer setting and no, not much happened.
Ideas?

CharlesHam said:
Hi, thank you for the response. Much appreciated.
There was no notification when I plugged in the usb cable
Unfortunately the driver did not download - it tried - so am now wondering as to how to go about doing that. Is there a specific driver?
Yes, I tried the developer options on the USB debug in the developer setting and no, not much happened.
Ideas?
Click to expand...
Click to collapse
The usb port on the pc could be faulty. One port on my pc is like that and works only as a charge only port, data transfer pins do not work. Try a different port or another pc.
https://www.youtube.com/watch?v=kgRlVBhvBoM

Recovering data with no screen?

Hello.
I've got my mother's Samsung A20. And i need to recover data, but the screen doesn't work.
When power button is pressed, display flashes the lock screen (wallpaper, current time and so on). And then it turns black (backlight stays on for 30 seconds, and then turns off). Pressing the button doesn't guarantee flashing the display, sometimes it goes black immediately. Touch screen gives no input as far as i know (can't hear anything when trying to type pin). Problem still occurs during and after reboots.
I managed to connect a mouse and keyboard with USB OTG, and i was able to unlock. But the phone has no MHL support, so i can't get any image through USB. I'd try pressing the power button repeatedly to get some image and inch my way through the interface, but the lockscreen interferes.
The USB port is set to Charging Only mode, so i can't copy files to my computer. USB Debugging is disabled, bootloader is locked.
Does anybody have a clue, how to get image? Some way to get data? Maybe some keyboard shortcuts, so i can disable lockscreen and make my way easier? And maybe disable 20 alarms in the morning?

damiandbcz said:
I'd try pressing the power button repeatedly to get some image and inch my way through the interface, but the lockscreen interferes.
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Click to collapse
I like to be helpful so I'll try to give you some suggestions but I hope others pitch in who know far more than I do.
I never use the USB cable anymore to operate my phone from my PC (but my screen isn't broken so your situation will be much harder).
I connect to my phone from Windows over Wi-Fi without USB all the time, and I can unlock my screen from the PC, and I can mount my entire Android device as a drive letter on Windows over Wi-Fi, etc., so "maybe" (just maybe though), you can consider using either a WebDav server on Android to access your files and/or adb to bring up and manipulate activities on Android....
damiandbcz said:
The USB port is set to Charging Only mode, so i can't copy files to my computer. USB Debugging is disabled, bootloader is locked.
Click to expand...
Click to collapse
However, I don't know if adb will work for you if you can't turn on USB debugging in the first place... but as of Android 12, adb now works completely over Wi-Fi (see screenshots below) without needing the USB cable to establish the initial connection like it used to be prior to Android 12.
damiandbcz said:
Does anybody have a clue, how to get image? Some way to get data? Maybe some keyboard shortcuts, so i can disable lockscreen and make my way easier? And maybe disable 20 alarms in the morning?
Click to expand...
Click to collapse
If the screen problem is "just" hardware and not software, and if you can turn on Wireless Debugging, you might be able to display your phone over scrcpy or vysor (both of which use adb over Wi-Fi) as shown in the screenshots below on my phone - which never needs the USB cable connection.
Hope this helps, but you seem to need folks who know more than I do as adb/vysor/scrcpy all work for me because I can set up USB Debugging & Wireless Debugging as shown below.
Note that you might have an FTP server or a WebDav Server on your Android phone, and if you do, you might be able to at least transfer important files since they each can mount your entire Android phone as a drive letter on Windows over Wi-Fi (without needing the USB cable).

GalaxyA325G said:
I like to be helpful so I'll try to give you some suggestions but I hope others pitch in who know far more than I do.
I never use the USB cable anymore to operate my phone from my PC (but my screen isn't broken so your situation will be much harder).
I connect to my phone from Windows over Wi-Fi without USB all the time, and I can unlock my screen from the PC, and I can mount my entire Android device as a drive letter on Windows over Wi-Fi, etc., so "maybe" (just maybe though), you can consider using either a WebDav server on Android to access your files and/or adb to bring up and manipulate activities on Android....
However, I don't know if adb will work for you if you can't turn on USB debugging in the first place... but as of Android 12, adb now works completely over Wi-Fi (see screenshots below) without needing the USB cable to establish the initial connection like it used to be prior to Android 12.
If the screen problem is "just" hardware and not software, and if you can turn on Wireless Debugging, you might be able to display your phone over scrcpy or vysor (both of which use adb over Wi-Fi) as shown in the screenshots below on my phone - which never needs the USB cable connection.
Hope this helps, but you seem to need folks who know more than I do as adb/vysor/scrcpy all work for me because I can set up USB Debugging & Wireless Debugging as shown below.
Note that you might have an FTP server or a WebDav Server on your Android phone, and if you do, you might be able to at least transfer important files since they each can mount your entire Android phone as a drive letter on Windows over Wi-Fi (without needing the USB cable).
Click to expand...
Click to collapse
A20 can have only Android 9, 10 or 11, but thanks for ideas anyway.
I didn't even know adb can work over WiFi, I'll look into it. Hopefully this version can do it too.
Now trying blindly to turn on the screen reader…

damiandbcz said:
A20 can have only Android 9, 10 or 11, but thanks for ideas anyway.
I didn't even know adb can work over WiFi, I'll look into it. Hopefully this version can do it too.
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Ooops. My bad. I apologize. You'll need the USB cable in Android 11 for a moment to establish the connection first. Then you can switch over to Wi-Fi after that (or you can stay on USB).
damiandbcz said:
Now trying blindly to turn on the screen reader…
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I feel for you. I really do. It hurts me when people can't access their phone remotely to get their data back. I am searching all over the XDA site for a solution for you, where I just moments ago opened this thread to help (I'm still searching for you though).
What is the best XDA solution to control Android on the PC & recover data over Wi-Fi when the user suddenly has an unresponsive broken screen?