Can't reboot to bootloader - Galaxy S6 Q&A, Help & Troubleshooting

Hi,
I want to install TWRP so I tried rebooting to bootloader by using adb, which didn't work, and I tried rebooting to the bootloader by rebooting to bootloader from recovery mode, which didn't work either, whenever I try it boots normally and just goes to my sim code screen. It's a G920F with stock firmware, my phone notified me of a software update is this the problem?

There's no "bootloader mode" on Samsung devices.

Hi,
There's no bootloader mode on Samsung, instead you get the Download screen. To get to it, just turn off your device, then turn it on using volume down+home+power buttons. You can then proceed to install TWRP using Odin through it.
All the best,
~Lord
Sent from my SM-G935F using Tapatalk Pro

WRONG
forumber2 said:
There's no "bootloader mode" on Samsung devices.
Click to expand...
Click to collapse
I have the same problem.. Cant root my phone because there is no bootloader to turn off... And yes when you go into original recoverymode there is a bootloader option... But it just don't work..
---------- Post added at 02:35 AM ---------- Previous post was at 02:33 AM ----------
There is a bootloader option in samsung recovery so you are wrong.. And yes it does not work....
I have the same problem..

Related

[Q] Nexus s stuck on Google Screen

My Nexus s i9020T is stuck on the google screen. I was trying to root it and when it was done my phone rebooted and it got stuck on the google screen. My bootloader is unlocked and i was running on gingerbread 2.3.6 can somebody tell me how to resolve this issue using a mac
How long did you waited? Sometimes that Google logo could tale a long time. Try going through the root process again
Sent from my Nexus S using Tapatalk 2
Same problem
I got the same problem. i can access recovery mode but my phone is not getting detected in PC. just hangs on Google logo (white) :crying:
bootloader os locked also.
My Model is GT-I9020T.
please help.
thanks in advance.
You should try the usb jig sold on ebay for the Nexus S.. It will bring the phone to download mode so you can flash your firmware with odin.. To use odin on your mac you need to have Windows installed with a virtual machine or virtualbox..
---------- Post added at 03:40 AM ---------- Previous post was at 03:35 AM ----------
Kumar Anil said:
I got the same problem. i can access recovery mode but my phone is not getting detected in PC. just hangs on Google logo (white) :crying:
bootloader os locked also.
My Model is GT-I9020T.
please help.
thanks in advance.
Click to expand...
Click to collapse
Bad luck for you.. Since your bootloader is locked and you can't unlock it you can't do anything.. Also you are talking about stock Android recovery right..? No TWRP or CWM..?
same problem
thanks for replying.
actually
I have google nexus GT-I9020t. it hangs on google logo (white). fastboot oem unlock is not working. lock state : locked.
when i go into recovery mode and try to wipe data/factory reset, it says:
e:format_volume: make_extf4fs failed on /dev/block/platform/s3c-sdhc1.0/byname/userdata
if i try to flash using fastboot, it says run fastboot oem unlock command.
it is not detecting in odin also. i have installed the drivers though.
else it is going to recovery mode, showing the lock status and i can also go futher in format, data wipe menu.
anything i can purchase will help or not, i dont know.
please help.
Kumar Anil said:
thanks for replying.
actually
I have google nexus GT-I9020t. it hangs on google logo (white). fastboot oem unlock is not working. lock state : locked.
when i go into recovery mode and try to wipe data/factory reset, it says:
e:format_volume: make_extf4fs failed on /dev/block/platform/s3c-sdhc1.0/byname/userdata
if i try to flash using fastboot, it says run fastboot oem unlock command.
it is not detecting in odin also. i have installed the drivers though.
else it is going to recovery mode, showing the lock status and i can also go futher in format, data wipe menu.
anything i can purchase will help or not, i dont know.
please help.
Click to expand...
Click to collapse
I made a USB JIG And its showing me some screen. please Check and update.
Kumar Anil said:
I made a USB JIG And its showing me some screen. please Check and update.
Click to expand...
Click to collapse
I remember this screen when I first rooted my Nexus S GTi9023. About the Google logo keep showing, phone probably not finding correct bootloader. I have this issue when I tried jellyBam rom. Fortunalty I had the nandroid back up of other roms that I have tried and I pick up then CM 10.1.2 and choose its backup file for restoring bootloader. Here you me also flash bootloader from PC as well as.
vikaskanani said:
I remember this screen when I first rooted my Nexus S GTi9023. About the Google logo keep showing, phone probably not finding correct bootloader. I have this issue when I tried jellyBam rom. Fortunalty I had the nandroid back up of other roms that I have tried and I pick up then CM 10.1.2 and choose its backup file for restoring bootloader. Here you me also flash bootloader from PC as well as.
Click to expand...
Click to collapse
But how to flash a bootloader? when i try "fastboot oem unlock" it fails. and when it is locked i cant flash a bootloader. any suggestions?
Kumar Anil said:
But how to flash a bootloader? when i try "fastboot oem unlock" it fails. and when it is locked i cant flash a bootloader. any suggestions?
Click to expand...
Click to collapse
You need to accept the warning message, the screen you attached.
Have a look at redmondpie.com/unlock-nexus-s-bootloader-how-to-guide/ (sorry cant post link as i am new user)
As I said, its been a long time, since I rooted, so I guess, you need to use power key or volume key for any action.
fastboot oem unlock not working
vikaskanani said:
You need to accept the warning message, the screen you attached.
Have a look at redmondpie.com/unlock-nexus-s-bootloader-how-to-guide/ (sorry cant post link as i am new user)
As I said, its been a long time, since I rooted, so I guess, you need to use power key or volume key for any action.
Click to expand...
Click to collapse
I guess, USB debugging mode was not checked at the time of the crash. It is detecting in the fastboot devices command but not in ADB devices.
i did everything in the link, you provided me.
and any other way to force partion of somthing. Any Other Option.
FATSBOOT OEM COMMAND:
http://s10.postimg.org/r0rjcrxe1/fastboot_oem_failed.jpg
thanks in advance
Can you boot in jelly bean?? Strange issue!
Sent from my Nexus 7 using xda app-developers app

[Q] moto g stuck in bootloop.

Hello everyone i am new here..
my moto g stuck in bootloop
fastboot -recovery and facatory reset also not working..
how can i fix this ?
moto g single sim 8gb
4.4.2 kitkat version
please reply me soon... waiting....
What you did and why you got the boot loop?
Sent from my XT1032 using XDA Premium 4 mobile app
padhu1989 said:
What you did and why you got the boot loop?
Sent from my XT1032 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
may be after moto g update to kitkat version... i dont remember.....
last night my mobile switched off and morning i just put on charging... and bootloop starting......
my moto g is from UK tesco mobile. comes with jeally bean..
and i update OTA in india kitkat version...
I can't seem to get into the recovery menu!
When I boot into fastboot I can select ‘Recovery’.
so i have unlocked bootloader...
now...
It displays 'bootloader unlocked' warning, then screen goes blank for a few seconds.
Then 'bootloader unlocked warning' displays again and again.....
jayrocky11 said:
I can't seem to get into the recovery menu!
When I boot into fastboot I can select ‘Recovery’.
so i have unlocked bootloader...
now...
It displays 'bootloader unlocked' warning, then screen goes blank for a few seconds.
Then 'bootloader unlocked warning' displays again and again.....
Click to expand...
Click to collapse
same in here :crying:
jayrocky11 said:
I can't seem to get into the recovery menu!
When I boot into fastboot I can select ‘Recovery’.
so i have unlocked bootloader...
now...
It displays 'bootloader unlocked' warning, then screen goes blank for a few seconds.
Then 'bootloader unlocked warning' displays again and again.....
Click to expand...
Click to collapse
Are you sure you are using volume up button to select a choice.
Pressing power button just reboots, volume down navigates and volume up selects
I made that mistae quite a number of times!
---------- Post added at 10:22 PM ---------- Previous post was at 09:35 PM ----------
jayrocky11 said:
may be after moto g update to kitkat version... i dont remember.....
last night my mobile switched off and morning i just put on charging... and bootloop starting......
my moto g is from UK tesco mobile. comes with jeally bean..
and i update OTA in india kitkat version...
Click to expand...
Click to collapse
Did you try flashing your phone back to Stock from fastboot?
http://forum.xda-developers.com/showthread.php?t=2542219
deej_roamer said:
Are you sure you are using volume up button to select a choice.
Pressing power button just reboots, volume down navigates and volume up selects
I made that mistae quite a number of times!
---------- Post added at 10:22 PM ---------- Previous post was at 09:35 PM ----------
Did you try flashing your phone back to Stock from fastboot?
http://forum.xda-developers.com/showthread.php?t=2542219
Click to expand...
Click to collapse
yes i am using volume up to select.. but not working any factory - recovery.. same bootloop comming again....
now i am goin to flash phone..... downloading stock.....
For you to be able to update the firmware (-> Android) there must not be root or a custom recovery on the phone. Remove both, flash again. Otherwise the updater throws an error and the phone will always reboot.
cyrus_ae said:
For you to be able to update the firmware (-> Android) there must not be root or a custom recovery on the phone. Remove both, flash again. Otherwise the updater throws an error and the phone will always reboot.
Click to expand...
Click to collapse
hmmmm..okk
thanks

No FASTBOOT mode or RECOVERY mode

Today I tried to flash a new ROM and basically bricked my Z3. However, I was able to install a stock firmware and got the phone working perfectly again. Problem is, I want to install a new ROM (elsewhere in the forum) but I have lost my recovery mode and fastboot mode. Can anyone explain how I can get them back or install a new one? I tried flashing the TWRP recovery onto the phone but it keeps coming back with an error. My phone is not bootlocked and is rooted. I just want some kind of recovery options. Please help.
Thanks in advance :good:
To flash twrp you must have unlocked bootloader and if you want to flash on locked bootloder download nuts dual recovery.
For fastboot switch off the phone and hold vol up and plug in the usb voila if you see blue led.
---------- Post added at 04:03 PM ---------- Previous post was at 04:02 PM ----------
To flash twrp you must have unlocked bootloader and if you want to flash on locked bootloder download nuts dual recovery.
For fastboot switch off the phone and hold vol up and plug in the usb voila if you see blue led.
darkdevu said:
To flash twrp you must have unlocked bootloader and if you want to flash on locked bootloder download nuts dual recovery.
For fastboot switch off the phone and hold vol up and plug in the usb voila if you see blue led.
---------- Post added at 04:03 PM ---------- Previous post was at 04:02 PM ----------
To flash twrp you must have unlocked bootloader and if you want to flash on locked bootloder download nuts dual recovery.
For fastboot switch off the phone and hold vol up and plug in the usb voila if you see blue led.
Click to expand...
Click to collapse
My bootloader IS unlocked but still can't flash it. Fastboot not working either.
1974darrenh said:
My bootloader IS unlocked but still can't flash it. Fastboot not working either.
Click to expand...
Click to collapse
Try another PC or laptop to flash.
darkdevu said:
Try another PC or laptop to flash.
Click to expand...
Click to collapse
Is it possible to flash a new ROM without a working recovery? Any apps I can use?
I also downloaded TWRP manager and tried to install it but it comes back with an error.

Help, moto G is stuck in M screen (or bootloader unlocked as it is unlocked)

i had the problem, when the cell, automatic restarted and it stuck on this screens, but it never came back, i already tried flashing the cellphone, and i already tried adding a custom bootloader, but no luck, it gave me the information that it mismatch, and attempts to enter the bootloader, without luck, i also already tried to only boot with fastboot, and no luck, it stucks on the twrp or m screen or shows different issues like screen fading or rumbling without reason, attempted to enter the recovery and only got to normal recovery from android, attempted to sideload the zip, and got a verification error, and it fails, again, i cant install a custom recovery, it always fails, and i dont know what to do... i really need help, any suggestion?? i already searched and didnt found any tools, flasher tool v.2 not found, and other tools are not able to help as well, help!!
edit, forgot to add, its an moto g. 2013 , xt1032 ANDROID LOLLIPOP
x-fighter said:
i had the problem, when the cell, automatic restarted and it stuck on this screens, but it never came back, i already tried flashing the cellphone, and i already tried adding a custom bootloader, but no luck, it gave me the information that it mismatch, and attempts to enter the bootloader, without luck, i also already tried to only boot with fastboot, and no luck, it stucks on the twrp or m screen or shows different issues like screen fading or rumbling without reason, attempted to enter the recovery and only got to normal recovery from android, attempted to sideload the zip, and got a verification error, and it fails, again, i cant install a custom recovery, it always fails, and i dont know what to do... i really need help, any suggestion?? i already searched and didnt found any tools, flasher tool v.2 not found, and other tools are not able to help as well, help!!
edit, forgot to add, its an moto g. 2013 , xt1032 ANDROID LOLLIPOP
Click to expand...
Click to collapse
which bootloader?
locked?
which firmware?
flashed how?
Sent from my PH-1 using XDA Labs
sd_shadow said:
which bootloader?
locked?
which firmware?
flashed how?
Sent from my PH-1 using XDA Labs
Click to expand...
Click to collapse
i am unable to use other than the normal bootloader, htt p://cdn.droidviews.com/wp-content/uploads/2014/02/moto-g-bootloader-mode.jpg but mine says unlocked code 3, i used fastboot to attempted to flash the phone, and nothing changed. it has the stock firmware lollipop 5.0.2, codename falcon, i flashed it with fastboot, but no luck, attempted to added by sideload on the android recovery default, and it gives me the errorhttp s://i.imgur.com/nSFMea9.jpg and i am unable to add any file, it doesnt has external sd
x-fighter said:
i am unable to use other than the normal bootloader, htt p://cdn.droidviews.com/wp-content/uploads/2014/02/moto-g-bootloader-mode.jpg but mine says unlocked code 3, i used fastboot to attempted to flash the phone, and nothing changed. it has the stock firmware lollipop 5.0.2, codename falcon, i flashed it with fastboot, but no luck, attempted to added by sideload on the android recovery default, and it gives me the errorhttp s://i.imgur.com/nSFMea9.jpg and i am unable to add any file, it doesnt has external sd
Click to expand...
Click to collapse
https://m.imgur.com/nSFMea9
http://cdn.droidviews.com/wp-content/uploads/2014/02/moto-g-bootloader-mode.jpg
Sent from my PH-1 using XDA Labs
---------- Post added at 01:48 PM ---------- Previous post was at 01:47 PM ----------
neither one of those says what files you are trying to flash
Sent from my PH-1 using XDA Labs
attached
Sent from my PH-1 using XDA Labs
x-fighter said:
i am unable to use other than the normal bootloader, htt p://cdn.droidviews.com/wp-content/uploads/2014/02/moto-g-bootloader-mode.jpg but mine says unlocked code 3, i used fastboot to attempted to flash the phone, and nothing changed. it has the stock firmware lollipop 5.0.2, codename falcon, i flashed it with fastboot, but no luck, attempted to added by sideload on the android recovery default, and it gives me the errorhttp s://i.imgur.com/nSFMea9.jpg and i am unable to add any file, it doesnt has external sd
Click to expand...
Click to collapse
From the picture you uploaded, says that your bootloader is locked, so that is why you can't flash any custom recovery. First you need to unlock your bootloader first but BACKUP FIRST, cause it will erase your internal storage when you unlock your bootloader. After unlocked, then you can flash custom recovery. Hope that helps.
Edit: but if your bootloader is really already unlocked, than try this, flashed twrp, then power down your phone by pressing the power button, then boot to twrp by press power button + volume down buttom. Don't reboot to twrp using the option im bootloader mode or using adb.
tepar said:
From the picture you uploaded, says that your bootloader is locked, so that is why you can't flash any custom recovery. First you need to unlock your bootloader first but BACKUP FIRST, cause it will erase your internal storage when you unlock your bootloader. After unlocked, then you can flash custom recovery. Hope that helps.
Edit: but if your bootloader is really already unlocked, than try this, flashed twrp, then power down your phone by pressing the power button, then boot to twrp by press power button + volume down buttom. Don't reboot to twrp using the option im bootloader mode or using adb.
Click to expand...
Click to collapse
i will upload a more reccent one, where i already unlocked it, but i will try whaat you edited, thank you!! let me try and post results

Phone issues after unlocking bootloader?

So I recently unlocked the bootloader on my Honor 6x and it is now stuck on the screen saying "Your device has been unlocked and can't be trusted" and the pesky "Your device is booting now message....". I am unable to get into fastboot mode, and so far no chances of booting into eRecovery. Any known fixes?
Do a clean flash of your ROM through dload method
in same situation.. any help pleasee ?
---------- Post added at 02:06 PM ---------- Previous post was at 02:05 PM ----------
but i have access to fastboot..
This also happened to me. I cant get to fastboot and the phone was stuck on "You're device is booting now...".
What I did is I let the phone drain its battery. After draining the battery, I tried to access fastboot mode. Holding down volume button and connecting the USB cable, the phone booted into the erecovery mode instead of fastboot mode. So I did a data wipe. After performing wipes, I tried to boot into fastboot mode again, and it worked. So I flashed the recovery, ramdisk, and kernel images. After which, I flashed the system again in TWRP and it was successful. ? Now my phone boots normally. ?
i have the same problem. i cant boot in fastboot or recovery...
player615 said:
i have the same problem. i cant boot in fastboot or recovery...
Click to expand...
Click to collapse
Try Dload or let it drain of battery. Next plug-in USB when it turns on hold Volume Up and boot into eRecovery.

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