adb works but not fastboot - Samsung Galaxy Note 8 Questions and Answers

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?
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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

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.
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ah i understand. tnx for reply

"waiting for devices" in ADB While trying to install TWRP?

Updated today to OB14. Now trying to re-flash twrp. Type "adb devices" and it showes connected to my OP3T. Go to flash the twrp file and says "waiting on devices"??? Why won't it flash? (using cmd fastboot flash recovery <file. Img> Yes, I'm in fastboot mode. Do I need to reinstall abd drivers?
arachniac1 said:
Updated today to OB14. Now trying to re-flash twrp. Type "adb devices" and it showes connected to my OP3T. Go to flash the twrp file and says "waiting on devices"??? Why won't it flash? (using cmd fastboot flash recovery <file. Img> Yes, I'm in fastboot mode. Do I need to reinstall abd drivers?
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Just kill adb.exe with Taskmanager... And try again..
arachniac1 said:
Type "adb devices" and it showes connected to my OP3T. Go to flash the twrp file and says "waiting on devices"??? Why won't it flash? (using cmd fastboot flash recovery <file. Img> Yes, I'm in fastboot mode. Do I need to reinstall abd drivers?
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Something is not quite right. adb and fastboot have different requirements, and will never work at the same time.
adb = works in OS or TWRP, will not work in fastboot mode. Debugging must also be enabled
fastboot = only works in fastboot mode. Debugging enabled not needed.
So adb working, and fastboot not working is expected, but to me, means you are not in fastboot mode. Or your are changing modes/states between commands (which is really confusing).
Go into fastboot mode and type: fastboot devices
And see if it returns the phone ID.

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
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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.
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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?

ADB fastboot

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.
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The appropriate command to flash /boot would be:
Code:
fastboot flash boot <boot image>

Question How to install custom ROM on Realme C25S RMX3195?

My PC cannot detect my phone in fastboot mode. It always get stuck on <waiting for device> when enter command fastboot flashing unlock or any fastboot command. How can I fix this?
yarri0 said:
My PC cannot detect my phone in fastboot mode. It always get stuck on <waiting for device> when enter command fastboot flashing unlock or any fastboot command. How can I fix this?
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Install drivers correctly.
yarri0 said:
My PC cannot detect my phone in fastboot mode. It always get stuck on <waiting for device> when enter command fastboot flashing unlock or any fastboot command. How can I fix this?
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i agree with humayun.bd, please install your usb drivers correctly

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