ADB-OTG app problem,connect my tablet with moto android phone through OTG cable, but no response - General Questions and Answers

I know this Question sounds amateur, but need help here.
I try to access the tablet files through an OTG cable connect to an android moto g play phone,run android 11, under the otg file explorer, shows there is an OTG icon name Mediatek, which is exact the tablet's chipboard, but after I click it, show empty. I had already enable the USB debugging under the developer option.
This task require without PC and without a rooted phone.
Thank your all.

Why not connect PC and phone via ADB and run
Code:
adb devices
adb shell "cd / & ls -1"

I'm a newbie here, I connect the phone and tablet by using an app name adb OTG, it runs adb command without PC and root phone, it detect the tablet's but shows empty under the app

Never used ADB-OTG app. IDK how it works.
And I don't want to occupy with this.

This task require no PC involved.
Need help here

My recommendation: Change thread's title to "ADB-OTG app problem" thus people making use of this app get addressed.

Thanks for that

Still need help here

tablets is build on 2015 name score c7, cheap one, sell inside the prison and charge $10 for a movie to view per time. Yep.. they making a killing on it.
Connect the tablet and phone through the OTG cable, using file explorer and ADB app both detected the tablet, but won't read the files inside the hard drive. Shows empty.
The goal is try to write file into the tablet so able to watch the movie for free on the tablet
Could anyone point a direction what I should try next to solve the problem?
Thanks

Related

[Q] File transfer from PC to G Tablet?

I'm trying to transfer files from my PC to my tablet, but the PC doesn't recognize the tablet - it wants me to format it. Same thing when I try to transfer the files from my mp3 player, the content of the player should be listed in the usbdisk folder, correct?
This is driving me NUTS, I'd appreciate some help. Oh, and tablet is rooted - VEGAn.
Thanks!
NeedleNerd said:
I'm trying to transfer files from my PC to my tablet, but the PC doesn't recognize the tablet - it wants me to format it. Same thing when I try to transfer the files from my mp3 player, the content of the player should be listed in the usbdisk folder, correct?
This is driving me NUTS, I'd appreciate some help. Oh, and tablet is rooted - VEGAn.
Thanks!
Click to expand...
Click to collapse
Do you have ADB working
OK, please bear with me, I'm noobish - but what is ADB?
NeedleNerd said:
OK, please bear with me, I'm noobish - but what is ADB?
Click to expand...
Click to collapse
http://developer.android.com/guide/developing/tools/adb.html
Rooting this Gtab is somewhat of a different process fyi
You could always use dropbox, Google it
It works fine for me, with no ADB installed (Vegan 5). Plugging the Gtab straight into the PC and turning on USB storage should recognize it as a USB storage device, like any other USB key.
OP, what operating system are you using? Have you tried a different USB cable? A different USB port on the PC? Perhaps a different PC (if one is available)?
BigJohn
NeedleNerd said:
I'm trying to transfer files from my PC to my tablet, but the PC doesn't recognize the tablet - it wants me to format it. Same thing when I try to transfer the files from my mp3 player, the content of the player should be listed in the usbdisk folder, correct?
This is driving me NUTS, I'd appreciate some help. Oh, and tablet is rooted - VEGAn.
Thanks!
Click to expand...
Click to collapse
Hi,
For the PC, are you connecting from your regular size USB connector on the PC to the *mini-USB* port on the side of the Gtab (not the full-size USB under the cover on the side of the Gtab)?
The mini-USB connector is the one you need to use to connect to your PC.
The full-size USB under the cover is a "host" USB, i.e., you can connect a flash USB drive or USB hard drive to that, and then assuming it's formatted FAT32 with only ONE partition, you should be able to see it on the Gtab under /usbdisk.
Jim
- My PC OS is Windows XP
- I am using the small port on the tablet, not the USB port under the cover, to connect to the PC
- I don't have a different cable/PC to try it with
- FYI - it WAS initially working when I tried to transfer files from my mp3 player to the tablet, the transfer was interrupted when the cord came loose from the tablet, and now it's no-go for both the PC or mp3 player file transfer process
- I do have a permanent folder usbdisk on the tablet, even when there's nothing plugged into the usb ports
Thanks for all the questions and suggestions, I'm glad there's people more savvy than I am with this, willing to help!
NeedleNerd
The small port (like a camera cord) should work. The cable has a USB end on the PC side. It should be recognized on the PC as an external drive. No need to install ADB unless you want to try that too.
One idea is try plugging the USB cable into different ports on the PC end.
If you have wireless and can share network drives on your PC, try File Expert. Its free and can be found in the market. With it I can connect to my PCs drives and copy to SD or USB in my GTab right on it. Granted, it took quite some time to copy a 1GB movie to SD2 (10 min), but it worked. I had to prevent my device from sleeping though or the transfer failed. Worked well though. I'm on TnT lite.
NeedleNerd said:
- My PC OS is Windows XP
- I am using the small port on the tablet, not the USB port under the cover, to connect to the PC
- I don't have a different cable/PC to try it with
- FYI - it WAS initially working when I tried to transfer files from my mp3 player to the tablet, the transfer was interrupted when the cord came loose from the tablet, and now it's no-go for both the PC or mp3 player file transfer process
- I do have a permanent folder usbdisk on the tablet, even when there's nothing plugged into the usb ports
Thanks for all the questions and suggestions, I'm glad there's people more savvy than I am with this, willing to help!
NeedleNerd
Click to expand...
Click to collapse
Hi,
I seem to recall that roebert (I think) had a problem w the miniusb connector being loose or broken. Have you looked at the connector in detail? Maybe the solder connection broke and it 'jiggles'? If so, probably need to get it repaired.
Jim
Well, I know it's not the cable, because I used it to transfer files from PC to mp3 player without any problems.
My PC shows the tablet (drive letter E assigned to it when plugged in), but I can't access the tablet - it's like the PC recognizes something is plugged in, but it doesn't recognize it as having content or something.
On top of that, I kept getting the android.process.acore error, so I did a datawipe and had to re-download all my apps again, to add to the aggrevation.
I will look at the different solutions suggested and if they're not requiring too much advanced knowledge, I will attempt them.
Thanks again for the help & suggestions so far, hopefully I will somehow stumble onto a fix that works!
So, I figured it out. Really simple - if you know how.
The VEGAn root is what did me in - when you plug in the cable, it doesn't give you the option to turn on the USB Mass Storage, which you need when you want to transfer files from PC to tablet. The unrooted device was a bit more user friendly by walking you through it when the cable was plugged in.
I figured out that if you tap and drag down on the USB icon on the top of the screen you can actually access the options - it's not just a status icon!
Hopefully this'll help out someone else who's rooting their tablet following instructions blindly without really knowing what's what!
Thank you again for all the suggestions, I really appreciate all the responses!
Astro SMB Module
If you are working on a home/private network and the file is on a shared network drive, you can map it in using Astro and the SMB Module for Astro ("Astro SMB" returns both in the market provided you have the market fix) and browse shared network drives just like you would on your laptop or PC.
Once installed, a network icon appears in Astro (looks like an upside down "T" or an old school windows network icon) and you can map in your network drives pretty easily. I use this with NAS and work files pretty regularly. You may have to enter alternate or domain specific credentials to make it work.
EDIT: Also I believe there are file format limitations, OS limitations, but haven't fully explored that.

[Q] Dumping/Reading PC Memory via Android Device

Hi,
I've been looking around to see if it possible to read a computer's process memory from a connected Android device. I know ADB allows you to modify things (on your device) via the computer's command line, but in reverse, how much control can you have over your computer. An end goal would be for me to read a process's memory (that's running on my computer) solely from my connected phone or tablet. Is this sort of thing even possible?
EDIT: I was just using ADB as an example. I know it's not capable of doing such a thing. Just trying to explain the concept.
Thanks!

[Q] Nexus 7 - backing up apps and game progress

My son has a Nexus 7 and twice I have had to replace it (due to lack of power charging problems) and twice he has lost his 'game progress'. The apps and games can be redownloaded but he loses all of his game progress. If I can't solve this problem, after this Nexus 7 goes (it's now having power charging problems and it is only 5 months old) he refuses to ever use a Nexus again and wants to go the iPad.
How can I backup games and their progress? I downloaded titanium but then realized there is no slot for a SD card or usb port to connect to my PC to backup. And I don't know how to use the cloud for this.
Suggestions?
Thanks
The Dad
You can connect your nexus 7 to your computer and view backup files / game files with 2 simple steps:
1) Configure MTP Connection by going to Settings -> Storage -> Menu button in upper-right side -> command USB Computer Connection -> MTP
2) Set USB debug mode- go to Settings-> About tablet -> tap the Build Number line for several times until
you get the 'you are now a developer!' message. go back -> Developer options -> Make sure that its on and you check 'USB debugging' box.
Thats it. when you use Titanium Backup, you should be able to see a folder named 'Titanium Backup" with all your backed up files when plugging the device to your pc. Note- If your game is pretty heavy, I suggest to backup the game's folder in Android->data->name of the game.
If it doesn't help- try to download USB drivers for your pc from Asus website: http://www.asus.com/Tablets_Mobile/Nexus_7/#support
Other alternative:
use BS file explorer to get to your need-to-backup folder- then by long pressing the folder you can choose to send it via your local shared network (wich can be configured by BS explorer) or, to zip it and then share it to a cloud service such as Google Drive or Dropbox.
Good luck!
Nexus 7 Backup games progress
REPLY........You say...."when plugging the device to your PC". I don't have a USB outlet (or any outlet other than power adapter) on my Nexus 7. So how can I plug the Nexus 7 into my PC ?
(Weird, I thought that Nexus 7 power adapter and cable are separated units...)
Any standard micro usb cable will do: https://www.modmypi.com/image/cache/data/raspberry-pi-accessories/microUSB-800x800.jpg
most electronic devices come with this kind of cable. just plug it into your nexus and pc.
(If you don't have any- it only costs about 1$)
amirTor said:
(Weird, I thought that Nexus 7 power adapter and cable are separated units...)
My Nexus 7 only has a power adapter (a hole) for connecting the power cord. There is NO other hole on the Nexus to plug in anything else. That's the issue. Thanks
Click to expand...
Click to collapse
Is your nexus 7 power adapter hole looks like this? http://cdn.arstechnica.net/wp-content/uploads/2013/05/nexus-7-bottom-sticker.jpg
than its multi-functional connection that operates as power adapter and a data port.
you just need to plug the cable shown at my previous post.
Maybe this will make things clearer: https://www.youtube.com/watch?v=7YiFmkMULuA
The charging cable is a micro usb to usb cable. Plug the micro usb into the charging port on your tablet and the other end, instead of plugging it into the wall plug, plug it into a usb port on your computer.
The tablet should install drivers onto the computer and then you should be able to see the internal storage on the tablet (photos, music, videos etc).
This will however not help you in backing up the games and their data.
Look in the Playstore for Backup apps, specifically ones that DO NOT need root, there are a couple. They should be able to help.
Nexus7Question said:
My son has a Nexus 7 and twice I have had to replace it (due to lack of power charging problems) and twice he has lost his 'game progress'. The apps and games can be redownloaded but he loses all of his game progress. If I can't solve this problem, after this Nexus 7 goes (it's now having power charging problems and it is only 5 months old) he refuses to ever use a Nexus again and wants to go the iPad.
How can I backup games and their progress? I downloaded titanium but then realized there is no slot for a SD card or usb port to connect to my PC to backup. And I don't know how to use the cloud for this.
Suggestions?
Thanks
The Dad
Click to expand...
Click to collapse
I guess the first question I have is; is the device rooted? If so, this makes backing up a bit simpler. You already have Titanium Backup, so just tap the button that looks like a square with a check mark. Then push the 'run' button that's in the "Backup all user apps + system data" (Third item in the backup section). Let this run. Once complete, you can upload the whole folder that TB put the files in (found by tapping 'menu' > Preferences > Backup folder laction) and upload it to a cloud service like Dropbox.
If you're not rooted (works with rooted devices too), we will need a Windows computer. This process can take a bit to explain, so sorry for the long post.
First, you’ll need to install Oracle’s Java Development Kit, which the Android SDK requires. Download and install the 32-bit version. The Android SDK wants the 32-bit version, even if you’re using a 64-bit version of Windows.
Next, download the Android SDK from Google. Extract the .zip folder to a location of your choosing, but remember where you put it. If you have the option to open extracted contents in a new window, do so.
Okay, now open the Android SDK Manager (you may have to open a subfolder or two) with administrative rights. You do this by right clicking on the .exe and choosing the option "Run as administror". A window will pop up, click yes, and after a small wait, the SDK Manager will open.
Now within the SDK Manger, under the tools section, check the box for Android SDK Platform-tools and click Install. This can take some time depending on your Internet connection. Once installed, go back to the open window where you cliked the SDK Manager .exe and navigate to the folder named "Platform Tools". If you're unsure where this is, the SDK Manager has the path of install located near the top.
Now let's get the tablet ready. If you can, charge your device to its fullest. Now go into the settings, scroll down to 'development options'. Near the top of this menu, make sure the toggle switch is in the 'on' position. Now scroll down to USB debugging, and tick the box. Tap "OK" when the message shows up. Now plug the smaller end of the USB cable (preferably the one that came with your Nexus) into the bottom of the tablet and the other into an open USB port of your computer. It's best to use a 2.0 USB port (no blue end) and if on a desktop, a port located in the rear.
If your computer starts installing any drivers, let it do this. Once that's finished, go to the window with the Platform Tools folder open. You should see a few files, two named "ADB" and another "Fastboot". Now hold your Shift key, right click in an open area, and choose the option "Open command window here". You may release the shift key at this time.
We're almost done. To make sure your tablet is seen by the computer type:
Code:
adb devices
One device should be listed. If you see no devices, adb can’t communicate with your device because its driver isn’t installed properly. In this case, go back to the SDK Manager and download the USB drivers. You may also need to restart your computer.
Assuming you're up and working, type:
Code:
adb backup -apk -shared -all -f C:\backup.ab
This backs up all the installed apps (APK files) and shared storage (SD card) data to the C:\backup.ab file on your computer.
After running this command, you’ll have to agree to the backup on the device. You can also encrypt the backup with a password here, if you like (leave it blank if you don't want encryption). Depending on how much data there is to back up, this can take some time. The device will letyou know when it's done.
Now for the restoration process:
On the new device, make sure USB debugging is enabled. On the computer, follow the same steps for opening the adb command window. Ensure adb can see the device, then type:
Code:
adb restore C:\backup.ab
On the device, you will need to confirm you want to do a full restore. If you encrypted the backup, enter in the password, then hit "Restore my data". If you didn't add encryption, then leave that area blank. Once the restoration is done, you're good to go.
Hopes this helps you (^^) Oh and if you need further explanation or screenshots, just let me know.
Thanks for the detailed response!! if my Nexus is not rooted, and before I go down this rather complex path I want to mention that I just read that "Helium" can be used instead of Titanium if the Nexus is not rooted. Would that be a simpler approach?
Also when I plug in the Nexus to PC cord my PC does not recognize the Nexus with a drive letter. I gave it 5 minutes. Any suggestions on that?
Thanks
Mark
Yes Helium is a good app. Are you using Windows 8? It doesn't like unsigned drivers being installed.
There is a guide here about installing drivers on your pc for nexus devices.
http://www.theandroidsoul.com/nexus-7-2013-drivers-installation-guide/
killall said:
Yes Helium is a good app. Are you using Windows 8? It doesn't like unsigned drivers being installed.
I'm using Windows 7.
Click to expand...
Click to collapse
OK try the link I just posted.

zte nubia n9 enable adb

Hi all,
someone bought me a damaged (screen cracked and not usable) phone, and they want to get their photos off the device. But in order for me to even interact with the phone via terminal, or use any recovery app on computer, the adb option must be enabled! now this is where the problem is, cuase how can i enable the adb option when i am flying blind with no screen?!
SO my question is this. Is there a way to connect the phone via the cable and push a command to the phone to enable adb option?
The other problem when connecting the phone is that all that comes up when you connects to the computer is the drive to install the drivers, and not the other drives for the system. SO maybe even a way to send a commnad to the phone to enable data connection so can get access to phone internal memory?

Samsung S7 Edge ADB Commands

Hi,
Basically I have a Samsung S7 Edge (SM-G935F) which the screen is completely smashed on (no display no touch). When I connect it to the PC it detects the phone but it doesn't show the folders inside (can only assume its got a prompt to accept PC or USB debugging isn't enabled).
After a lot of testing with OTG cables keyboards/mouse etc the furthest I got was putting the phone into Recovery Mode (PWR, VOL UP & HOME) then selected APPLY UPDATE ADB.
When I run the ADB in Powershell and run "adb devices" it finds the device ID and says "sideload".
Is there any command I can run to pull the files off my internal DCIM folder (thats all I really need)?
I did read up the only way this could be possible is to install a custom rom (TWP with ODIN?) and then pull files off.
Is this possible and would installing a custom rom delete my internal files as that would render this pointless.
Sorry im new to a lot of this so all my knowledge is just what ive read recently.
Thanks
1. To pull user data USB-debugging must got enabled. May be this method works for you to enable it:
2. To flash TWRP it's required device's bootloader got unlocked - what requires OEM unlock must got enabled . Note: Unlocking bootloader erases all user data.
jwoegerbauer said:
1. To pull user data USB-debugging must got enabled. May be this method works for you to enable it:
2. Once you unlock device's bootloader - what is required to flash TWRP - all user data get lost.
Click to expand...
Click to collapse
Thanks for the reply,
Ok so my only option is the "blind" method.
I have the app installed via Google Play Store on my PC to the device however when I hold down the home button to ask google I hear no reply from her, is there any hotkey to use for this device to ask google or any alternative methods to open this app?
I can see the S7 Edge is connected to my WIFI as it shows on the Sky Hub and IPScanner.
Also is there a way to tell what android interface version I have so I can follow someone on Youtube going into Settings or Apps etc to open the app.
I feel like I am so close to getting these photos off the phone but its just a blind guess at the moment.
I managed to get a hold of a friends S7 Edge, using this I mapped out some keyboard functions to turn on developers options then usb debuggings.
What I have noticed is now when I connect the phone via USB to the PC and run ADB DEVICES it shows up the ID then unauthorised as the status, so I can only assume this means I have USB DEBUGGING ENABLED.
Is this correct?
If so why when I open the Samsung Galaxy in Windows does it still not show the folders, is there another setting I need to turn on/off?
Rowan88 said:
I managed to get a hold of a friends S7 Edge, using this I mapped out some keyboard functions to turn on developers options then usb debuggings.
What I have noticed is now when I connect the phone via USB to the PC and run ADB DEVICES it shows up the ID then unauthorised as the status, so I can only assume this means I have USB DEBUGGING ENABLED.
Is this correct?
If so why when I open the Samsung Galaxy in Windows does it still not show the folders, is there another setting I need to turn on/off?
Click to expand...
Click to collapse
you are confuse you want to view phone content and sd card? you need to change from charging to MTP connection from drop-down notification bar of your device
ineedroot69 said:
you are confuse you want to view phone content and sd card? you need to change from charging to MTP connection from drop-down notification bar of your device
Click to expand...
Click to collapse
I want the internal storage contents of DCIM on the phone.
I followed the steps on my "donor" phone to go into Developer Options > USB Configuration > MTP but all that happens is the phone detects on Windows but wont show me the contents of it.
I also tried changing to PTP but same issue.
I know there is a pop-up that shows on the phone asking to ALLOW THE PC TO ACCESS FILES but I cannot have the USB DATA CABLE and OTG/KEYBOARD plugged in at the same time (and I also tried two OTG adapters both came up MOISTURE DETECTED when using).
So unless anyone knows of a OTG SPLITTER that 100% works with S7 EDGE then I need to find a way to either bypass the ALLOW MESSAGE or manually add my PC to its allow list.
Rowan88 said:
I want the internal storage contents of DCIM on the phone.
I followed the steps on my "donor" phone to go into Developer Options > USB Configuration > MTP but all that happens is the phone detects on Windows but wont show me the contents of it.
I also tried changing to PTP but same issue.
I know there is a pop-up that shows on the phone asking to ALLOW THE PC TO ACCESS FILES but I cannot have the USB DATA CABLE and OTG/KEYBOARD plugged in at the same time (and I also tried two OTG adapters both came up MOISTURE DETECTED when using).
So unless anyone knows of a OTG SPLITTER that 100% works with S7 EDGE then I need to find a way to either bypass the ALLOW MESSAGE or manually add my PC to its allow list.
Click to expand...
Click to collapse
Followed steps again and changed to PTP and FILES ARE NOW SHOWING!!
Happy man!
Thanks for all the help
Rowan88 said:
I want the internal storage contents of DCIM on the phone.
I followed the steps on my "donor" phone to go into Developer Options > USB Configuration > MTP but all that happens is the phone detects on Windows but wont show me the contents of it.
I also tried changing to PTP but same issue.
I know there is a pop-up that shows on the phone asking to ALLOW THE PC TO ACCESS FILES but I cannot have the USB DATA CABLE and OTG/KEYBOARD plugged in at the same time (and I also tried two OTG adapters both came up MOISTURE DETECTED when using).
So unless anyone knows of a OTG SPLITTER that 100% works with S7 EDGE then I need to find a way to either bypass the ALLOW MESSAGE or manually add my PC to its allow list.
Click to expand...
Click to collapse
fully charge your phone and hopefully the heat generated from charging process remove the moisture detected warning or you can also use hair blower to heat your charging port area
also don't put your device on microwave oven unless you want to see some fireworks

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