I am trying to root my Samsung SM-J400f but I just cant get into fastboot mode. As soon as I type following command :-
Code:
adb reboot bootloader
My device just reboots and doesn't enter into fastboot or any special mode. I have checked "OEM unlock" option in develop options. Also I tried entering into fastboot mode by pressing Volume up + home + power keys but it just starts normally like nothing have just happened. Pls help me. Btw, I am using ArchLinux
You want to go to downloadmode
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I have a galaxy nexus that when powered on goes straight to ODIN mode, without pressing any buttons. I am able to flash CF's odin files, however the phone boots into SAFE MODE only. It goes back into ODIN mode if I power off and back on. If I use adb reboot-bootloader, it goes to fastboot menu as below.
If I try power+ vol up, I can get to fastboot menu, but I am unable to select any menus, or communicate to the device using fastboot command. It is NOT a drivers issue.
Any thoughts on how to fix it?
Interested inyour outcome
It's possible to enter fastboot using "adb reboot bootloader" if the system is up and running and you have ADB.
However:
Has anyone figured out how to enter fastboot via a keycombo on power up?
VolDn sends you to recovery
VolUp (which was fastboot on the Find5) takes you to some sort of factory mode.
https://plus.google.com/101093310520661581786/posts/F1LKcuN5RVV is a screenshot of factory mode - does one of those happen to say fastboot (for those of you who read Chinese)?
Thanks to Jiangyi:
Entropy512: Factory mode
Auto test
Manual test
Individual test
Test result
Debug test options
Wipe emmc
Version info
Reboot phone
Can't find a way to enter fastboot...
On another mtk6589 device (wiko stairway), you need to hold vol down and up and then start (power on).
Chris
Hi Entropy i have Oppo r819 and got bootloop and no fastboot. Have you solved? Cam you help me? Please
Excuse me, ask, bro.
My cellphone Realme 3 is 4/64 RMX 1821
I tried Unlock Bootloader using the in depth test and it worked but after trying to root it went into fastboot mode there was writing fastboot mode verification fail. And always reboot like that, don't want to enter fastboot mode. As long as the power button is pressed + down fastboot mode it always fails and repeats until I release all relame 3 button automatically reboots as usual.
Is there a way to fix this failboot fast mode?
Hi, right after 3 days I installed April 2020 security update on my pixel 3 XL, my phone's screen turns black and i can't unlock my phone. So i reboot my phone then it enter fastboot mode and it displayed "failed to load/verify boot images". I try using the Volume keys to scroll until Recovery Mode but it's still going to fastboot mode. The start, recovery mode, and rescue mode options all just go back to the fastboot menu with "failed to load/verify boot images".
I had try leave my phone on the fastboot mode screen until it die and plugging it back while holding the power button. Then it still just go back to the fastboot menu with "failed to load/verify boot images". I also try plug my phone into a different charger and USB-C cable but still the same problem appear.
Any help guys, what should i do ? Thank you very much.
What happens in bootloader when you type fastboot reboot fastboot?
Just download the android 10 factory image latest and google platform tools in that same page and unzip the image and copy those contents to platform tools and then using cmd prompt CD to platform tools and make sure fastboot can detect your device and then type flash-all and it should be back to factory condition.
Dear All.
I was trying to install TWRP and custom ROM on my devices. My Devices bootloader is already unlocked. but when i was going to enter the fastboot mode, my devices only shows this massage:
"SC Fastboot mode
long press power key to shutdown devices"
it doesn't show any information about my phone, bootloader version, secure boot etc. I'm trying to force my phone to enter bootloader mode but it only shows something like barcode on the right side of the devices. can someone help me?:crying:
nyak10 said:
Dear All.
I was trying to install TWRP and custom ROM on my devices. My Devices bootloader is already unlocked. but when i was going to enter the fastboot mode, my devices only shows this massage:
"SC Fastboot mode
long press power key to shutdown devices"
it doesn't show any information about my phone, bootloader version, secure boot etc. I'm trying to force my phone to enter bootloader mode but it only shows something like barcode on the right side of the devices. can someone help me?:crying:
Click to expand...
Click to collapse
https://firmwarex.net/redirect/?url...com/open?id=15-Gv3hlUpnKmoeA6yVY6O8ZNAv6vaM7R download this file and click flashall.
it doesn't work sir. it says error on handler