[Q] (linux) adb posting unknown and no device - General Questions and Answers

Hi (nevermind, I am using a different tablet for this project)
I am using a laptop running from a USB with Ubuntu installed from a ubuntu mini ISO. The tablet is a rooted Ematic 7" egd170
I am trying to install ubuntu touch/for tablets onto my spare android tablet but have ran into an issue. Everytime I try connecting the tablet to the ubuntu laptop I get these errors with adb
Code:
[email protected]:~$ adb devices
List of devices attached
[email protected]:~$ adb get-state
unknown
[email protected]:~$ adb get-serialno
unknown
[email protected]:~$ adb remount
error: device not found
error: device not found
[email protected]:~$ adb usb
error: device not found
error: device not found
However, the laptop mounts the tablet fine. The tablet never prompts for USB debugging so I think that is the issue.
I have tried changing the storage settings back and forth, changing it from debug and back, killing adb and restarting it with the tablet plugged in, none of it worked.
My nexus 7 shows up fine with adb devices though. And it prompts right away for usb debugging with this laptop.
Any ideas?

Related

Nook Tablet won't Connect to Macbook Pro in ADB

I've been trying to root my new NOOK TABLET via T-R-I-C-K's method on the forum and I can do everything except get the Macbook Pro to recognize my Nook in ADB mode. I downloaded the Android SDK and I even got an error message saying in the Manager Log stating "ADB SERVER FAILED". Everytime I type in ./go.ph to run script log in T-R-I-C-K's instructions the TERMINAL LOG on my computer states:
Error: did not find a device on USB. Is USB debugging enabled? If so try again. adb seems to need a few attempts to get going. Also, don't use a USB hub!\n
dyld: Symbol not found: ___stack_chk_guard
Referenced from: /Users/IcePick/Desktop/nooktablet-mac-root-0.6/./adb
Expected in: /usr/lib/libSystem.B.dylib
./go.sh: line 67: 919 Trace/BPT trap ./adb kill-server
Click to expand...
Click to collapse
I'm running Mac OS 10.4.11 on a previous generation Macbook Pro...any suggestions? Thanks for any help, I'm trying to get this thing rooted!

adb troubles

ive used adb before on a friends computer and on my computer (a macbook pro) in the past and know the works but recently on my computer when i connect any device including my skyrocket with usb debugging on and i try to run adb using the command ./adb shell it starts to run, then says error- no device recognized. any ideas?
Check device USB driver

[Q] help asus tf700 motochopper root!!

i feel useless... after i run the batch file from the extracted motochopper folder, it starts in terminal and says not found followed by daemon started and nothing happens.. i checked usb debug and the unknown source security boxes on the tablet and since im running windows 7, i ran the batch file as administrator. please anything will help kind of afraid to pull usb cable out of laptop what do i do now??
beahrr77 said:
i feel useless... after i run the batch file from the extracted motochopper folder, it starts in terminal and says not found followed by daemon started and nothing happens.. i checked usb debug and the unknown source security boxes on the tablet and since im running windows 7, i ran the batch file as administrator. please anything will help kind of afraid to pull usb cable out of laptop what do i do now??
Click to expand...
Click to collapse
Sounds like your ADB is not working. Can you connect to your device thru ADB from a PC?
Code:
adb devices
Should echo your S/N. If it says "List of devices attached" followed by blank (nothing) then your ADB is not working and you need drivers for W7, W8. You also have to add the path to platform tools to your Windows system environment variables path so the system can find it.
Code:
which adb
Should echo "/system/bin/adb" otherwise you don't have the adb binary installed on your device.
Code:
adb version
Should echo 1.0.29 for 4.1.1
Should echo 1.0.30 or 1.0.31 for 4.2.1 (secure adb)
elfaure said:
Sounds like your ADB is not working. Can you connect to your device thru ADB from a PC?
Code:
adb devices
Should echo your S/N. If it says "List of devices attached" followed by blank (nothing) then your ADB is not working and you need drivers for W7, W8. You also have to add the path to platform tools to your Windows system environment variables path so the system can find it.
Code:
which adb
Should echo "/system/bin/adb" otherwise you don't have the adb binary installed on your device.
Code:
adb version
Should echo 1.0.29 for 4.1.1
Should echo 1.0.30 or 1.0.31 for 4.2.1 (secure adb)
Click to expand...
Click to collapse
Thanks man, btw how do you thank on here to make ur thank meter grow
I ran into the same problem with win7. When I plugged in my tablet, it seemed like it would lose the connection shortly after connecting it. I eventually got it to root by running motochopper, and then plugging in my tablet. This was the only thing that worked, even after installing every Asus USB driver know lol.
Hope this helps
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

Samsung SM?T230NU 5.0- ADB Shows Unauthorized Device

adb shows Unauthorized device on custom ROM for SM-231
I successfully rooted my SM-230NU and installed the custom ROM provided in this post
http://forum.xda-developers.com/tab-4/development/rom-android-5-0-lollipop-material-t3061873
However, when I connect the device using USB to my Mac and try "adb devices" I get "unauthorized" beside the device ID. I have already tried the following:
a. on the Mac: adb kill-server followed by adb start-server
b. on the Mac: Deleted the ~/.android/adbkey and ~/.android/adbkey.pub
c. on Device: Revoked the USB debugging access to all computers (on the device) and also via terminal emulator app verified that on the device /data/misc/adb/ directory is empty
d. on PC: Repeated all the above on a Windows 7 machine (still shows "unauthorized" beside the device ID)
e. Changed multiple cables and tried the same cable with other devices and they are all detected as valid devices.
Unless I get the device to be recognized I am not able to install some apks using adb install. Any help will be highly appreciated.

ADB not recognizing Pixel on ubuntu 16.10

Pixel just updated to 7.1.2 build 47K, running adb devices is not showing any phone connected. I am able to view and transfer files through the file manager, but none of the adb commands will work. My other older androids will display fine. Any ideas?
I have usb debugging enabled and connection type set to file transfer. Tried 2 different usb ports on ubuntu 16.10. It's the google store version for what it's worth.
adb version: Android Debug Bridge version 1.0.32
lsusb: Bus 002 Device 012: ID 1xxx:4xxx Google Inc. Nexus 4 (debug)
Sorry if there is another post for this, I searched and did not find an answer to this on my own.
@bdre
try to run adb as root
Code:
adb kill-server
sudo adb start-server
sudo adb devices
:good:
Geeks Empire said:
@bdre
try to run adb as root
Code:
adb kill-server
sudo adb start-server
sudo adb devices
:good:
Click to expand...
Click to collapse
so turned out to be just a bad usb cable...
the one that came with the phone of course did not work

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