Last year I unlocked Nexus when it was 2.3.4，and then i install CM 7.1，and last month I installed CM 9.0.
Last week I loked my phone using fastboot oem lock,and then the phone was locked ,you can see in the recovery.And then I tried to unblock again,but when i type fastboot oem unlock on my computer,and my phone i can shoose "unlock" bye the volume button,and select by the power button,and then nothing happen on my phonescreen or on my computer does screen.
What can i do now?Thanks to everyone!!
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Hello there,
I followed the steps in this thread http://forum.xda-developers.com/showthread.php?t=1710755. But, at the last step, after I typed in the code, the tablet tried to restart and stopped with two lines at the upper left corner: "Bootloader version JB-653b3d3 (unlock mode)" and "Bootloader VJB-653b3d3 (unlocked mode): starting fastboot use download protocol". Then it just freezed here with a big ACER in the middle of hte screen. I had to turn it off to reboot it. However, even it says the bootloader is unlocked, the combination power+volume down didnot work. It doesn't go to the bootloader mode. So has anyone got this issue before? Is there anything I did wrong? Thanks.
ffppffpp said:
Hello there,
I followed the steps in this thread http://forum.xda-developers.com/showthread.php?t=1710755. But, at the last step, after I typed in the code, the tablet tried to restart and stopped with two lines at the upper left corner: "Bootloader version JB-653b3d3 (unlock mode)" and "Bootloader VJB-653b3d3 (unlocked mode): starting fastboot use download protocol". Then it just freezed here with a big ACER in the middle of hte screen. I had to turn it off to reboot it. However, even it says the bootloader is unlocked, the combination power+volume down didnot work. It doesn't go to the bootloader mode. So has anyone got this issue before? Is there anything I did wrong? Thanks.
Click to expand...
Click to collapse
Power+Volume down is only part of it. It sounds like you want to get to recovery... correct. If so:
Press and hold volume down and press power until the tab vibrates.
continue to hold volume down and release power until the tab vibrates again.
move to volume up and hold until the tab vibrates a third time and release all.
You are in recovery.
Stock recovery is extremely limited.
You would be better served with a CWM recovery to flash ROMs.
This is done on the computer.
If you are looking to return to fastboot mode to flash a recovery, this is also done on the computer.
"ADB reboot bootloader"
wait for the tab to reboot
fastboot flash recovery C:\path\*recovery*.img
My Nexus 7's (2012) battery went and I charged it up. When I switched it back on it was stuck in a 'Google' bootloop. I tried the recovery menu options to fix it but nothing worked. I've been reading lots of forums etc.. and have found a few solutions but they require the bootloader to be unlocked. Mine won't unlock.
I have never rooted or tried to before. My Nexus was stock (4.4.2 & a 4.23 bootloader) and have never touched the USB Debugging option. (So don't know if it's on or off)
I don't know what to do with it now. I've tried to 'fastboot oem unlock' and also have tried the Wugs toolkit. The unlock screen does come up on my Nexus, I press the power button for 'yes' and it either goes into a google loop (Using Wugs) or it will say 'unlocking now..' at the top of the bootloader screen indefinitely (Using the command prompt way)
I think that the drivers are okay as it does show the serial numer when I type 'fastboot devices' but it does have to be in 'Apply update from ADB' mode to show the serial number when I type 'adb devices'
Does this sound right? I have tried a couple of different drivers.
Can anyone help? My nexus is a Month out of warranty now so can't get a replacement..
Hi there,
I think i bought a fake Samsung Galaxy S6. But it works well, and it looks identical and has most of the futures of the real Galaxy s6.
As a fake Samsung phone, it doesn't have any Odin Download mode in it. So i tried to get into the bootloader via adb "adb reboot bootloader".
When i get there, i try to unlock the bootloader "fastboot oem unlock".
On the screen of the Phone i get a message about the fact im trying to unlock the bootloader etc. Press volume up to Unlock, Press Volume down to cancel.
The problem is, I can't press Volume Up for some reason, only Volume down. So i can't unlock the Bootloader to install custom recovery via ADB and finally install custom ROM.
Anyone any help? I can only access Stock recovery menu, some chinese test menu and the bootloader. Thats it.
Any help would be appreciated, i can provide any info you will possibly need.
grtz, Alex
Hi,
is it a problem to relock the bootloader ?
What steps do i have to do ?
Greetz
adb devices
Now, you will see a serial number in the command prompt window which indicates that the device is connected.
adb reboot bootloader
As the device booted into Fastboot mode, type the following command to lock the bootloader.
fastboot oem lock
Now, a confirmation pop-up will appear on the device screen. Use the volume buttons to navigate the highlight to “Relock Bootloader” and press the Power button to confirm it.
And after this, what will happen? Especially when you are rooted? Will it wipe all your data and can you start all over again, or will you face errors/issues/bootloops?
Person I wont just relock my bootloader. Your hash records are broken and you won't get working upgrades anymore, it's even the question if you still can oem unlock it again..... Besides this I don't know if, when you will brick your device, the msm tools still work. If you want to go back to stock better use MSMtools directly and go back to stock. https://www.xda-developers.com/how-to-unbrick-oneplus-nord-msmdownloadtool/amp/
Matija Gubec said:
adb devices
Now, you will see a serial number in the command prompt window which indicates that the device is connected.
adb reboot bootloader
As the device booted into Fastboot mode, type the following command to lock the bootloader.
fastboot oem lock
Now, a confirmation pop-up will appear on the device screen. Use the volume buttons to navigate the highlight to “Relock Bootloader” and press the Power button to confirm it.
Click to expand...
Click to collapse
Is this a safe method ? I dont want to brick the phone.... because i read a thread,where the relock ends in a bootloop..... THX
Im not test it but i have last week close BL on my O+ 8pro without any problem!
But before you close BL read this:
https://forum.xda-developers.com/on...de-fix-persist-img-loss-finger-print-t4125909
So i make it. And everything works without any problem.
If you have root remove it.
Flash last original firmware!
(so if you use patched boot.img you have now the "original" again!)
Then relock bootloader...
After that i test it with FP,Face Unlock and OTA update!
Everything is fine ...
reef2009 said:
Person I wont just relock my bootloader. Your hash records are broken and you won't get working upgrades anymore, it's even the question if you still can oem unlock it again..... Besides this I don't know if, when you will brick your device, the msm tools still work. If you want to go back to stock better use MSMtools directly and go back to stock. https://www.xda-developers.com/how-to-unbrick-oneplus-nord-msmdownloadtool/amp/
Click to expand...
Click to collapse
This 10.5.11.AC01AA version is ok?
Wanting to root the device via magisk, I tried first to unlock the bootloader of my phone but apparently failed.
I started by activating the developer mode, set oem unlocking developer option in the settings then tried adb reboot bootloader : no success, the phone simply rebooted. A fastboot oem unlock just hung out waiting for a device.
I can go into download mode or recovery mode if that may help...
Any idea how to unlock this bootloader ? How can i check it is effectively unlocked ?
Thanks in advance for any help
It's well known that SAMSUNG mobiles don't have the Fastboot feature: there it's the Download mode.
FYI:
Power off your device. Press Volume Up + Volume Down and plug in your device to a PC to boot into download mode
When you enter download mode, Long press Volume Up button to unlock the bootloader.
ok well, let's forget about fastboot command then.
I'll answer myself on the original question, to unlock the bootloader:
switch off the phone
press volume up and volume down key
plugin a usb cable
choose "device unlock" with a long press volume up
after released the key up, choose "unlock" with volume up again
Now I'm looking to enter the download mode which I can't reach anymore. Any idea xXx yYy ?
Answer myself again
Apply the 3 first steps of my previous answer, you'll be in the same unlock screen as before but the first option will be "Continue". Choose it with volume up and you will end up in download mode !
Now I'll try rooting with magisk...
Rooting with magisk 25.2 done by a classical patching of AP from november release: AP_G736BXXU1BVK2_G736BXXU1BVK2_MQB58744363_REV00
It appears that this is the only thread on the entire forum for this phone?
Having just bought one for the removable battery and the dual SIM, I discovered that samsung in their infinite wisdom disabled the multiple users feature in their oneUI ROM, which really sucks because that was part of the reason I wanted the phone, to segregate certain apps into their own user account.
This all made me realize Root + custom ROM is probably the only way I will ever get that basic functionality returned.
So here I see that rooting is doable, but there appears to be zero results for un-samsung'd ROMs.
Which market is G736B? I was looking at ordering but I am in the US and the Samsung site is giving me the SM-G736UZKEXAA. Would the classical patching work on that?
The G736B model is sparsely distributed in EU, Asia, Africa and Oceania (see here). Your G736W US model is also based on Snapdragon 778G, it is probably the same phone with a few subtleties concerning 5G support (if any, can't find out) and software bloatware. I'd be surprised the above patching doesn't work but ... it's only a guess !
geekall said:
Wanting to root the device via magisk, I tried first to unlock the bootloader of my phone but apparently failed.
I started by activating the developer mode, set oem unlocking developer option in the settings then tried adb reboot bootloader : no success, the phone simply rebooted. A fastboot oem unlock just hung out waiting for a device.
I can go into download mode or recovery mode if that may help...
Any idea how to unlock this bootloader ? How can i check it is effectively unlocked ?
Thanks in advance for any help
Click to expand...
Click to collapse
you da real mvp bro