i'm trying to flash CM12, but every adb command errors out and my devices is listed as "unauthorized" when i run adb devices. i understand that normally i would restart in Android and allow USB debugging. but.. i accidentally wiped my device while i was in Recovery mode.
According to the CM docs on secure USB debugging:
if you see error: device unauthorized while attempting to use adb in recovery, restart to Android and authorize the connection.
Click to expand...
Click to collapse
but since I wiped my device, I am stuck in recovery with USB debugging disabled. i tried booting from sd, but it just errors out . so i'm stuck. anyone have any advice?
It all started with a video that i found to youtube.
I have an old device (grand duos i9082) and i want to use it as a gps in my car.
One interesting option that i need is to power on the device with the usb cable (when i turn on ignition).
So i followed the instructions on yourube video. \\Set your Android Phone to Automatically Power on when USB Charger is plugged in\\
I have root my phone with odin v3.12.5 with this file CWM-touch_i9082_chotu.tar and i run an application from recovery mode : install from sd card ''UPDATE-SuperSU-v2.65-20151226141550''.
My phone is rooted. When i am in normal mode phone (not download or recovery mode) in device manager i see 1. samsung android adb interface 2. Portable Device i9082
3. samusng mobile usb modem and 4. samsung mobile usb composite device. ( i have already install the drivers). When i run in command prompt
C:\Program Files (x86)\Android\android-sdk\platform-tools> adb devices i get List of devices attached (a serial number) device.
So i believe that i have installed the right usb drivers. When i run fastboot devices nothing happens, it returns
C:\Program Files (x86)\Android\android-sdk\platform-tools>
C:\Program Files (x86)\Android\android-sdk\platform-tools>
Finally when i go to download mode i see in device manager only 4. samsung mobile usb cdc composite device and 3. samsung mobile usb modem #2
and when i try fastboot oem-off-mode charge 0 , i see waiting for device.
Thanks for the help
Hi!
The reason why your device was not being detected is because your device was not in the FASTBOOT mode. There is a difference between DOWNLOAD mode and FASTBOOT mode. I'm not sure how to boot a Samsung phone into fastboot and also have a doubt if we can boot into FASTBOOT at all..
I have been going through other threads where the members were trying to boot into fastboot but were unsuccessful.
Anyway I do hope that you find a workaround to this issue
Have a nice day!
Press the THANKS button if I helped you at all!
Thanks for the answer. i thought that download and fastboot mode were the same (samsung's fastboot was called download)
"""""""""""""""""""""""""''Help Help Help Help"""""""""""""""""'''''''''’'''''
I am having Moto M XT1663 phone I bought was already boot unlocked so i decided to Install recovery and Root so that I can enjoy rooted things.
The problem is that the phone not detectable in Fastboot mode phone can only be detected in ADB mode. When I write command "ADB devices" it shows my device.
If I want to reboot into boat loader and use fastboot devices after hitting enter it shows nothing and no error appears.
I google about my phone's drivers that should be installed in order to use fastboot mode. So I installed them but no success.
One thing I notice that In fast boot mode my laptop giveys USB detection error and also tells me ADB interface failed.
Tried below mentioned things in order to get my phone detected in fastboot mode:
1) tried 3 different laptops(my Nexus 6p is detectable on all three laptops).
2) changed USB cable.
3) FDR using recovery.
EDIT: Problem solve by install Mediatek driver from windows update
Troubleshoot guide for updating the adb and fastboot drivers manually in a PC running any version of windows
First, try updating your drivers through windows update automatically. If the drivers are installed and still fastboot commands are not working, then follow these steps:
Pre-requisites:
* PC running windows 7/8/10
* Internet connection (just 20MB)
* Working USB cable
Steps:
(1) Download the [OFFICIAL][TOOL][WINDOWS] ADB, Fastboot and Drivers - 15 seconds ADB Installer v1.4.3 from XDA
Link: https://forum.xda-developers.com/showthread.php?t=2588979
(2) Install it with "Y" confirmation for all 3 options and reboot the PC
(3) Disable the internet connection of your pc
(4) Reboot your phone to fastboot mode and plug it to your PC's USB 2.0 port (important)
(5) Open device manager on PC and scan for hardware changes from the option if your device is not listed already
(6) If it shows 'Asus android device' -> "ASUS Android Bootloader Interface', right click on it and uninstall device with the 'delete the driver software' option ticked.
(screenshot 1 & 2)
(7) Now scan for hardware changes (magnifying glass icon)
(8) It will show 'Android' with an ! symbol
(screenshot 3)
(9) Right click -> Update driver -> Browse my computer for driver software
(10) Choose "Let me pick from a list of available drivers on my computer"
(11) Choose "Android device" or "Asus android device" or similar option and confirm it with Yes or Next option
(screenshot 4)
(12) A warning will pop up, press 'Yes'
Done
(13) Go to adb folder -> shift+right-click and open cmd or powershell window -> type "fastboot devices" without the quotes and you will see your device listed.
Nice... Thanks for the guide... Many people needed it... Was about to make one myself...
Great. Many many thanks bro
kickyvivi said:
troubleshoot guide for updating the adb and fastboot drivers manually in a pc running any version of windows
first, try updating your drivers through windows update automatically. If the drivers are installed and still fastboot commands are not working, then follow these steps:
pre-requisites:
* pc running windows 7/8/10
* internet connection (just 20mb)
* working usb cable
steps:
(1) download the [official][tool][windows] adb, fastboot and drivers - 15 seconds adb installer v1.4.3 from xda
link: https://forum.xda-developers.com/showthread.php?t=2588979
(2) install it with "y" confirmation for all 3 options and reboot the pc
(3) disable the internet connection of your pc
(4) reboot your phone to fastboot mode and plug it to your pc's usb 2.0 port (important)
(5) open device manager on pc and scan for hardware changes from the option if your device is not listed already
(6) if it shows 'asus android device' -> "asus android bootloader interface', right click on it and uninstall device with the 'delete the driver software' option ticked.
(screenshot 1 & 2)
(7) now scan for hardware changes (magnifying glass icon)
(8) it will show 'android' with an ! Symbol
(screenshot 3)
(9) right click -> update driver -> browse my computer for driver software
(10) choose "let me pick from a list of available drivers on my computer"
(11) choose "android device" or "asus android device" or similar option and confirm it with yes or next option
(screenshot 4)
(12) a warning will pop up, press 'yes'
done
(13) go to adb folder -> shift+right-click and open cmd or powershell window -> type "fastboot devices" without the quotes and you will see your device listed.
Click to expand...
Click to collapse
bro i have done everything you said, also i followed some youtube videos for help, also when i type "fastboot devices" it shows my device attached but when i try to execute something, my phone says "press any button to shutdown".....i want to flash my phone please help me........because somehow my phone got bricked after flashing latest havoc os 3.0 through twrp .
I follow xda for everything
looking forward for a quick response : - )
Divyajeet90 said:
bro i have done everything you said, also i followed some youtube videos for help, also when i type "fastboot devices" it shows my device attached but when i try to execute something, my phone says "press any button to shutdown".....i want to flash my phone please help me........because somehow my phone got bricked after flashing latest havoc os 3.0 through twrp .
I follow xda for everything
looking forward for a quick response : - )
Click to expand...
Click to collapse
I am having same problem... Did you find any solution for it?
kickyvivi said:
Troubleshoot guide for updating the adb and fastboot drivers manually in a PC running any version of windows
First, try updating your drivers through windows update automatically. If the drivers are installed and still fastboot commands are not working, then follow these steps:
Pre-requisites:
* PC running windows 7/8/10
* Internet connection (just 20MB)
* Working USB cable
Steps:
(1) Download the [OFFICIAL][TOOL][WINDOWS] ADB, Fastboot and Drivers - 15 seconds ADB Installer v1.4.3 from XDA
Link: https://forum.xda-developers.com/showthread.php?t=2588979
(2) Install it with "Y" confirmation for all 3 options and reboot the PC
(3) Disable the internet connection of your pc
(4) Reboot your phone to fastboot mode and plug it to your PC's USB 2.0 port (important)
(5) Open device manager on PC and scan for hardware changes from the option if your device is not listed already
(6) If it shows 'Asus android device' -> "ASUS Android Bootloader Interface', right click on it and uninstall device with the 'delete the driver software' option ticked.
(screenshot 1 & 2)
(7) Now scan for hardware changes (magnifying glass icon)
(8) It will show 'Android' with an ! symbol
(screenshot 3)
(9) Right click -> Update driver -> Browse my computer for driver software
(10) Choose "Let me pick from a list of available drivers on my computer"
(11) Choose "Android device" or "Asus android device" or similar option and confirm it with Yes or Next option
(screenshot 4)
(12) A warning will pop up, press 'Yes'
Done
(13) Go to adb folder -> shift+right-click and open cmd or powershell window -> type "fastboot devices" without the quotes and you will see your device listed.
Click to expand...
Click to collapse
Hello, I followed your mentioned steps but in my drivers its showing "Samsung Android Device" is that okay for my asus zenfone max pro m1 device? Or there is one portable device option, is that it?
Hi guys, specially opened an account because of this issue. I am unable to run the fastboot devices command even after following all the aforementioned steps. Phone screen turns black and a message appears on the top left stating "press any key to shutdown", while the fastboot devices command gives a "??????? fastboot" response on my PC. PLEASE HELP!
kickyvivi said:
(12) A warning will pop up, press 'Yes'
Done
Click to expand...
Click to collapse
After I completed all the steps, my phone showed on screen "press any key to shutdown" and even in device manager it shows android ADB interface as hidden. Help please. Rebooting again to fastboot mode doesn't help because it shows the same screen "press any key to shutdown" on reconnecting with PC.
May Asus x01bd can't in to the mode fastboot..how to solved it?
Kajin660 said:
May Asus x01bd can't in to the mode fastboot..how to solved it?
Click to expand...
Click to collapse
Well i learned this from somewhere but actually you need to turn off the secure boot in your PC from the BIOS. That's what helped me do it
D0CT0RFATE said:
Hi guys, specially opened an account because of this issue. I am unable to run the fastboot devices command even after following all the aforementioned steps. Phone screen turns black and a message appears on the top left stating "press any key to shutdown", while the fastboot devices command gives a "??????? fastboot" response on my PC. PLEASE HELP!
Click to expand...
Click to collapse
this same with me,, n i donk know how it is??
my phone asus x01bd
Nightmonkeyps said:
Well i learned this from somewhere but actually you need to turn off the secure boot in your PC from the BIOS. That's what helped me do it
Click to expand...
Click to collapse
can u explaining me?? sorry i dont understand what u mean??
Kajin660 said:
can u explaining me?? sorry i dont understand what u mean??
Click to expand...
Click to collapse
Well you know how there's a BIOS in your PC which contains the basic commands required to run a computer. There is a setting called secure boot inside your BIOS. You need to turn it off and then install fastboot tools. To open the BIOS, repeatedly press F10 or F8 on your computer while it is opening. This is how it worked for me atleast
Divyajeet90 said:
bro i have done everything you said, also i followed some youtube videos for help, also when i type "fastboot devices" it shows my device attached but when i try to execute something, my phone says "press any button to shutdown".....i want to flash my phone please help me........because somehow my phone got bricked after flashing latest havoc os 3.0 through twrp .
I follow xda for everything
looking forward for a quick response : - )
Click to expand...
Click to collapse
this happen to me,, and i have solved this,,
step:
1. U must flash ur Phone via qfil,(*)
,than u will lost ur IMEI and SN will Change to 111111,, but dont worry thats can be back again
2. next step is u must recover ur IMEI and SN back (in tele group u wil found the step) after that U just flash stock firmware modified (via TWRP/ORFOX)n then ur phne willl back normally
Note : (*) in firmware for flash via qfil replace the recovery.img with twrp/orfox (rename To "recovery.img") this will bring u a twrp/orfox recovery after flash via qvil
i hope this can help..
Hello,
I am trying to unlock my bootloader but I my computer (Windows 10) does not recognize fastboot.
When I connect to fastboot (holding volume up button + connecting my phone by USB when it's off, or using the adb reboot fastboot command), the computer does not recognize the phone. I then tried installing drivers (both from Google and Sony) by going into device manager but Windows just doesn't install the drivers.
I then saw this on Sony's website:
Fastboot driver - Sony Developer World
developer.sony.com
So I download the file and pasted it instead of the same file (android_winusb.inf) in the Google driver folder, and it somewhat worked, but Windows said something like unable to find drivers for ADB.
I also tried to install in Windows test mode but to no avail.
No matter what I tried, entering the command fastboot devices in fastboot mode does not give me any output (not even "waiting for device").
What am I doing wrong?
Thank you!
TheeWolf said:
Hello,
I am trying to unlock my bootloader but I my computer (Windows 10) does not recognize fastboot.
When I connect to fastboot (holding volume up button + connecting my phone by USB when it's off, or using the adb reboot fastboot command), the computer does not recognize the phone. I then tried installing drivers (both from Google and Sony) by going into device manager but Windows just doesn't install the drivers.
I then saw this on Sony's website:
Fastboot driver - Sony Developer World
developer.sony.com
So I download the file and pasted it instead of the same file (android_winusb.inf) in the Google driver folder, and it somewhat worked, but Windows said something like unable to find drivers for ADB.
I also tried to install in Windows test mode but to no avail.
No matter what I tried, entering the command fastboot devices in fastboot mode does not give me any output (not even "waiting for device").
What am I doing wrong?
Thank you!
Click to expand...
Click to collapse
Did you already disable driver signing? Pretty sure you have to do that with Win 10. I would disable driver signing, and then use " 15 second adb installer" from XDA. Always has worked for me...