I'm trying to get S-Off, but ADB is unable to communicate with my phone. 'adb devices' shows my phone with an offline status. I'm trying to use Rumrunner, my HBoot is 1.55. I've tried completely deleting Android SDK, restarting, and reinstalling. I've tried uninstalling drivers, restarting, and reinstalling. USB debugging is enabled. However, if I boot into bootloader, 'adb devices' and 'fastboot devices' are both able to identify and access the phone.
From the searching I've done, there's supposed to be a prompt on your phone requesting access for the adb server from the computer, but I haven't received any such prompt. Could the missing prompt be my issue?
Go to developer options on your phone and revoke USB debugging permissions. Also, update your adb to a recent version.
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Been trying to root N1(FRG83) without unlocking bootloader. Downloaded android-sdk to c: drive and downloaded usb driver.
When I boot the N1 into fastboot mode and type fastboot from the cmd prompt on the computer it sees the phone and gives me the serial (HT****)
When I try the same thing from ADB (ADB devices) it doesn't recognize the phone. I just get a blank line and go back to the command prompt. I've tried this on 2 machines (1 Vista the other Windows 7) and get the same results.
The frustrating thing is that I actually had the phone recognized with the ADB devices command when I first set it up but got called away from the computer and never had a chance to run the rooting routine.
Anybody out there solved this problem?? All help appreciated.
Thanks.
download and install the sdks and nexus ine drivers manually.
thanks but no luck
Downloaded drivers as you suggested but no luck. Also tried reinstalling sdk. Debugging is on, Java is installed, I'm out of ideas for the moment.
astron46 said:
Downloaded drivers as you suggested but no luck. Also tried reinstalling sdk. Debugging is on, Java is installed, I'm out of ideas for the moment.
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Del everything...restart your pc, and download the drivers and sdk..it'll take a few more mins.
When this happened to me, I restarted my PC and it worked.
astron46 said:
Been trying to root N1(FRG83) without unlocking bootloader. Downloaded android-sdk to c: drive and downloaded usb driver.
When I boot the N1 into fastboot mode and type fastboot from the cmd prompt on the computer it sees the phone and gives me the serial (HT****)
When I try the same thing from ADB (ADB devices) it doesn't recognize the phone. I just get a blank line and go back to the command prompt. I've tried this on 2 machines (1 Vista the other Windows 7) and get the same results.
The frustrating thing is that I actually had the phone recognized with the ADB devices command when I first set it up but got called away from the computer and never had a chance to run the rooting routine.
Anybody out there solved this problem?? All help appreciated.
Thanks.
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Click to collapse
If I recall correctly, adb won't work while the phone is in fastboot mode - and that fact that your fastboot commands work fine indicates that it shouldn't be a driver issue. Make sure you're running the adb commands when your phone is actually booted (at least to recovery).
If the phone is recognized by the computer via usb, but the adb does not see the phone connected, you just may need to simply delete and reinstall the latest USB driver that is offered.
There is actually an issue with Nexus One's where the adb composite interface doesn't work. It seems related to the issue with the broadcom driver and the mac address starting with 38.
See here - http://code.google.com/p/android/issues/detail?id=9437 - for more info.
I have now upgraded to frg83 and it works fine.
codesplice said:
If I recall correctly, adb won't work while the phone is in fastboot mode - and that fact that your fastboot commands work fine indicates that it shouldn't be a driver issue. Make sure you're running the adb commands when your phone is actually booted (at least to recovery).
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This. If you're running ADB in fastboot, you'll get nowhere.
So last night I tried unlocking my bootloader so I could root my HTC One, but I've had one issue. Whenever I get to the part where you make the back up of my apps I get the following message "adb: unable to connect for backup". My phone is conncected, and I have USB debugging enabled. I also checked the device status and it keeps reporting it as offline. I don't quite know what to do, if anyone can help it'll be appreciated.
First off, I barely know anything with regards to phones as I still learning. However, last night had a similar issue and ended up having to use cmd prompt to navigate to adb and then used it to see the device.
MrTechie890 said:
So last night I tried unlocking my bootloader so I could root my HTC One, but I've had one issue. Whenever I get to the part where you make the back up of my apps I get the following message "adb: unable to connect for backup". My phone is conncected, and I have USB debugging enabled. I also checked the device status and it keeps reporting it as offline. I don't quite know what to do, if anyone can help it'll be appreciated.
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Click to collapse
New security enhancements in android 4.2.2 builds (and above) require the end user to explicitly grant adb access to any connecting computers before that connecting machine can successfully issue any adb commands to your device. When you connect a 4.2.2 (and above) android device to your machine (with USB debugging enabled) for the first time, you should be prompted with a confirmation message to allow or disallow USB debugging. This message will display your computers unique RSA key fingerprint and provide you a checkbox to “Always allow from this computer”. Check this box and select ‘OK’. Your device should no longer be listed as ‘offline’
If you don’t see this prompt then you should try the following:
With your device connected via usb and the toolkit running, toggle USB debugging off/on in Settings > ‘Developer Options’ and see if the prompt comes up
Also try unplugging and re-plugging the usb connection.
BD619 said:
New security enhancements in android 4.2.2 builds (and above) require the end user to explicitly grant adb access to any connecting computers before that connecting machine can successfully issue any adb commands to your device. When you connect a 4.2.2 (and above) android device to your machine (with USB debugging enabled) for the first time, you should be prompted with a confirmation message to allow or disallow USB debugging. This message will display your computers unique RSA key fingerprint and provide you a checkbox to “Always allow from this computer”. Check this box and select ‘OK’. Your device should no longer be listed as ‘offline’
If you don’t see this prompt then you should try the following:
With your device connected via usb and the toolkit running, toggle USB debugging off/on in Settings > ‘Developer Options’ and see if the prompt comes up
Also try unplugging and re-plugging the usb connection.
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I've already done this. I had usb debugging enable since I started this. I even tried unplugging and replugging multiple times while trying to do this. Are there any other settings I need to enable?
MrTechie890 said:
I've already done this. I had usb debugging enable since I started this. I even tried unplugging and replugging multiple times while trying to do this. Are there any other settings I need to enable?
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Click to collapse
You have to help us with a little more info -- ADB and Fastboot just *have* to work or you'll get nowhere:
1) What OS are you using? Version included;
2) Plug in your phone, open a command window in the appropriate place and type: adb devices
Tell us the output.
If you don't get a device listed, either your drivers are bogus on your machine and need to reload, or you're not getting USB debugging setup correctly (not sure how you miss that, so I'd think the former).
tdhite said:
You have to help us with a little more info -- ADB and Fastboot just *have* to work or you'll get nowhere:
1) What OS are you using? Version included;
2) Plug in your phone, open a command window in the appropriate place and type: adb devices
Tell us the output.
If you don't get a device listed, either your drivers are bogus on your machine and need to reload, or you're not getting USB debugging setup correctly (not sure how you miss that, so I'd think the former).
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The version of android I'm using is 4.3, for my computer I'm using OSX 10.9, and the code that is listed when I search for my device through adb is FA3A8S902431.
MrTechie890 said:
The version of android I'm using is 4.3, for my computer I'm using OSX 10.9, and the code that is listed when I search for my device through adb is FA3A8S902431.
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Then try this:
adb backup
That should create a backup file called: backup.ab
tdhite said:
Then try this:
adb backup
That should create a backup file called: backup.ab
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Click to collapse
Still get the same issue I've been getting. I typed that command in, it just tells me all the options for adb, and I then retried the other command I was using and squat.
MrTechie890 said:
Still get the same issue I've been getting. I typed that command in, it just tells me all the options for adb, and I then retried the other command I was using and squat.
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Click to collapse
I know you don't want to read this, but you'll need to read all about Macs and this issue. A quick Google on "adb unable to connect for backup mac" brings up all sorts of folks fighting exactly what you are. I don't have a Mac -- use Linux almost exclusively, but it all appears related to either usb debugging, or a connection timeout setting.
tdhite said:
I know you don't want to read this, but you'll need to read all about Macs and this issue. A quick Google on "adb unable to connect for backup mac" brings up all sorts of folks fighting exactly what you are. I don't have a Mac -- use Linux almost exclusively, but it all appears related to either usb debugging, or a connection timeout setting.
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Click to collapse
For me, doing it on Linux wouldn't be a huge issue but since I have a mac as my primary machine I'm trying to make due with it.
I think I just firgured it out actually. I just had to install the android sdk, I was using the abd files provided from a tutorial. anyhow, thanks for trying to help tdhite.
Whenever I try to adb sideload the latest OTA either with the Stock recovery or TWRP the watch just disappears, is no longer recognized as an adb device, or within the device manager, what I'm doing wrong?
The watch is recognized as an adb device in fastboot or with Android up and running.
I've tried reinstalling the drivers, nothing...
I have enabled developer mode, enabled ADB debugging, but on the PC I get no permissions. Tried rebooting and disable/enable a few times. The watch never asks to grant the PC permissions. Tried two different PCs.
I know something is happening, the cable is working, because if I enable/disable ADB alters the "no permissions" to "nothing found".
ADB debugging off:
Code:
adb devices
List of devices attached
ADB debugging on:
Code:
adb devices
List of devices attached
604KPBF037869 no permissions
Edit: solved, I had to kill adb and restart it then worked.
Hello,
I got my phone brand new about 4 months ago. I rooted it and got TWRP installed with no issues. Fastboot and ADB were working fine but now when I try to connect my phone via USB and use ADB I get unauthorized whenever I type adb devices. Typically this happens because your phone is prompting you to allow the computer to have root access but I am not getting that popup window at all.
Things I've tried;
Uninstalled ADB/Updated ADB
Deleted adbkey folder under C:\Users\name\.android
Stopped and Started the adb server again after computer and phone reboot
Deleted ADB_keys folder on android in \data\misc\adb folder on phone itself, followed by a restart
Turning off then back on USB Debugging
Turning off then back on USB Debugging & Developer Options
(Including Revoking USB Debugging Authorizations both times)
Even tried copying the following from PC to phone ~/.android/adbkey.pub inside the /data/misc/adb/adb_keys
Still no luck, I'm not sure why it would just stop working out of nowhere. Nothing has changed since I used it a few months ago.
Also another strange occurrence is that if I turn off USB Debugging / Developer Options then reboot. Once the phone gets to the home screen both USB Debugging and Developer Options are enabled again without me doing it.
Anyone else have a similar issue and figure it out?
vulcanrvn said:
Hello,
I got my phone brand new about 4 months ago. I rooted it and got TWRP installed with no issues. Fastboot and ADB were working fine but now when I try to connect my phone via USB and use ADB I get unauthorized whenever I type adb devices. Typically this happens because your phone is prompting you to allow the computer to have root access but I am not getting that popup window at all.
Things I've tried;
Uninstalled ADB/Updated ADB
Deleted adbkey folder under C:\Users\name\.android
Stopped and Started the adb server again after computer and phone reboot
Deleted ADB_keys folder on android in \data\misc\adb folder on phone itself, followed by a restart
Turning off then back on USB Debugging
Turning off then back on USB Debugging & Developer Options
(Including Revoking USB Debugging Authorizations both times)
Even tried copying the following from PC to phone ~/.android/adbkey.pub inside the /data/misc/adb/adb_keys
Still no luck, I'm not sure why it would just stop working out of nowhere. Nothing has changed since I used it a few months ago.
Also another strange occurrence is that if I turn off USB Debugging / Developer Options then reboot. Once the phone gets to the home screen both USB Debugging and Developer Options are enabled again without me doing it.
Anyone else have a similar issue and figure it out?
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Click to collapse
Go Here and download the Fastboot drivers. follow the directions on the razor dev portal. I had the same issue and this fixed it for me. https://developer.razer.com/razer-p...94.1708481542.1586624574-305520188.1586475530
If your adb-server is not started with root/admin rights, your phone will never prompt you for authorization unless you choose a different USB Mode (MTP, PTP, etc.) than Charge Only. I suspect this is done to prevent certain malicious actions being performed without the user being aware.
If you start your adb-server with root/admin rights (by typing "sudo adb start-server", make sure you've killed your existing daemons before doing so), you can use ADB while in Charge Only mode, provided you've subsequently authorized the PC to do so. However, unlike normal adb server, the fingerprint may occasionally change and you may need to redo the authorization again.