ADB fastboot - Samsung Galaxy Note 8 Questions and Answers

Has anyone tried using adb fastboot on Samsung Galaxy Note 8 recently.
I have tried unsuccessfully to get the fastboot work using Windows and Macbook with the latest Samsung Samsung drivers for fastboot. Even installed the fastboot drivers from Android Development platform but still no luck beyond <waiting for device>.
I read on another forum that Samsung no longer allows fastboot to work with their devices. Is it correct?

Fastboot as I understand it is an extension of Android recovery.
If you have USB Debugging enabled on your device, you should be able to issue commands: adb reboot fastboot
Fastboot commands also work in bootloader.

@V0latyle
Thanks for your reply.
I have USB debugging enabled alongwith the unlocked bootloader, as my device is rooted.
Recently, I was trying to use adb fastboot to flash boot image file of my Samsung device. However, it kept displaying <waiting for device> .
I tried the same command from my MacBook using Android platform tools, but result was still the same.
All adb commands work very well on Windows and MacBook without any hiccups.

Prof_Shekhar said:
@V0latyle
Thanks for your reply.
I have USB debugging enabled alongwith the unlocked bootloader, as my device is rooted.
Recently, I was trying to use adb fastboot to flash boot image file of my Samsung device. However, it kept displaying <waiting for device> .
I tried the same command from my MacBook using Android platform tools, but result was still the same.
All adb commands work very well on Windows and MacBook without any hiccups.
Click to expand...
Click to collapse
The appropriate command to flash /boot would be:
Code:
fastboot flash boot <boot image>

Related

[Q] Connection with PC

Hellow. I have some problem with connection of my One. Atm i wanna s-off my phone.But can't.
After connecting phone to usb2.0 port win8 recognise it well (checked by "adb devices -l"). But when i try to reboot into bootloader i've got "waiting for device" (fastboot reboot bootloader). Ok i'm switch off the phone and boot in bootloader (fastboot mode). Phisical connection is good (fastboot usb). Try to check connection by "adb devices -l" and i got no one device connected. But in same time i can easy flash recovery by "fastboot flash recovery recovery.img". Btw when i put phone in fastboot mode my win8 told me that connected device not recognised and can't work good, but when i start android win8 got my phone well. I've check it with two original htc usb cables and one not original.
Any ideas?
Thx!
When the phone is in fastboot mode, you use the fastboot command, adb won't work. When the phone is not in fastboot mode, you use the adb command, fastboot won't work.
BenPope said:
When the phone is in fastboot mode, you use the fastboot command, adb won't work. When the phone is not in fastboot mode, you use the adb command, fastboot won't work.
Click to expand...
Click to collapse
ah i understand. tnx for reply

[Q] Can't fastboot because of driver problems

Hello everyone. I want to install CyanogenMod to my Sony Xperia SP 12.1.A.1.205.
I already unlocked the bootloader, I already rooted it, and even my PC (using Linux) detects it, but I just can't get fastboot to recognize the device. If I type in the command line
Code:
adb devices
CB51240CAW device
But if I try to do fastboot flash boot boot.img to install CyanogenMod I always get "Waiting for device". If I type fastboot devices I get no response (of course I restart my phone holding volume up to fastboot).
Is it even possible that my PC recognize my device using adb but not using fastboot?
Thank you in advance.
Nevermind, I did it in Windows 8.1 following this:http://forum.xda-developers.com/showthread.php?t=2588979
bbabel said:
Nevermind, I did it in Windows 8.1 following this:http://forum.xda-developers.com/showthread.php?t=2588979
Click to expand...
Click to collapse
U can install the fastboot drivers on windows 8 or 8.1 by signing off of the drivers in advance reboot of the PC.:good:

Bootloop + Twrp not installing properly

Hi everyone I need some serious help. I unlocked my bootloader just fine then booted into TWRP using the command
Code:
fastboot boot twrp-3.3.1-0-jasmine_sprout.img
after that used the ADB sideload button in TWRP. I used this command
Code:
adb sideload twrp-installer-3.3.1-0-jasmine_sprout.zip
which didn't work and then I eventually advanced wiped my device. The reason it didn't work ios because my xiaomi mi a2 isn't recognized as a ADB device, it only get recognized as a fastboot device. It is now stuck in a boot loop and can only boot into recovery. Any help would be appreciated.
Mactroiy said:
Hi everyone I need some serious help. I unlocked my bootloader just fine then booted into TWRP using the command
Code:
fastboot boot twrp-3.3.1-0-jasmine_sprout.img
after that used the ADB sideload button in TWRP. I used this command
Code:
adb sideload twrp-installer-3.3.1-0-jasmine_sprout.zip
which didn't work and then I eventually advanced wiped my device. The reason it didn't work ios because my xiaomi mi a2 isn't recognized as a ADB device, it only get recognized as a fastboot device. It is now stuck in a boot loop and can only boot into recovery. Any help would be appreciated.
Click to expand...
Click to collapse
Hello Mac,
Are you running the commands from the adb directory? Example, adb devices which typically would show your xiaomi mi a2 device.
Is the Android USB driver showing as adb in device manager?
I have the very same device, it is a little tricky since it has an a and b partition and you have to be precise when installing a custom ROM. Here's a how to that may be of help to you, it definitely helped me a lot.
Good luck!
[ADB | FASTBOOT | LINUX COMMANDS] BootLoader, Kernel, Recovery, ROM, Root, Backup
Mactroiy said:
.... then I eventually advanced wiped my device...
Click to expand...
Click to collapse
What did you wipe? If anything except Dalvik Cache and/or Cache, then most probably you'll have to reflash stock ROM in fastboot.
Mactroiy said:
The reason it didn't work is because my xiaomi mi a2 isn't recognized as a ADB device, it only get recognized as a fastboot device. It is now stuck in a boot loop and can only boot into recovery. Any help would be appreciated.
Click to expand...
Click to collapse
If "Android Portable Device" drivers are installed correctly (and PC has USB2.0 slot and/or USB 3.x slot compatible with MiA2, which happens not so often), still ADB (if I am not mistaken) sees connected phone if it is
1) booted normally, USB Debugging is On, MTP is On, and ADB with this PC have been validated in phone (and still ADB has limited functionality depending on kernel), or
2) booted into TWRP
You can check ADB connection using "adb devices -l",
- if command shows nothing, then either drivers not installed or USB port is failing or nothing compatible booted in phone,
- if command shows unauthorized transport id, then you have not approved ADB in phone
If phone is in fastboot mode, then, with drivers installed and USB port being compatible, "fastboot devices" shhould show attached phone, and if it is fully unlocked, stock fastboot ROM can be reflashed

adb works but not fastboot

I rooted my Note 8 and when I'm in the TWRP bootloader, I can issue adb commands, but no fastboot command (list of devices empty). How can I get the phone into a state where fastboot works?
TauTau said:
I rooted my Note 8 and when I'm in the TWRP bootloader, I can issue adb commands, but no fastboot command (list of devices empty). How can I get the phone into a state where fastboot works?
Click to expand...
Click to collapse
Samsung doesn't use fastboot!
They lock it out in favor of their Odin flash tool.
so there's no way to use fastboot commands? There goes my hope on making it boot on power connect

Can't root my device

Anyone help how can I root my device?
I am running on andriod 11 with latest security patch. Adb and fastboot working fine while device is turned on when I give command to adb reboot bootloader then phone come in fastboot then device not showing in adb devices list when I turned on phone its showing there but not in fastboot menu. Kindly help.
Because u rebooted into fastboot mode now u are on fastboot. Try running the command: fastboot devices
XakedowX said:
Because u rebooted into fastboot mode now u are on fastboot. Try running the command: fastboot devices
Click to expand...
Click to collapse
Tried but not working. When phone is running adb worked when phone is in fastboot adb is not working (list of available devices) blank.
gmkhamisani786 said:
Tried but not working. When phone is running adb worked when phone is in fastboot adb is not working (list of available devices) blank.
Click to expand...
Click to collapse
because as i said u are not in adb when u are in fastboot adb devices will NOT RETURN and results. it will be blank. You should try the command: fastboot devices
it will show up there.
Brother I can't unlock bootloader that's why I am having issues. Can you please help to unlock bootloader?

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