How to install TWRP without Bootloader unlocking? - Google Pixel 3 Questions & Answers

Is there any way to install TWRP without unlocking the bootloader?
I found a thread here for Poco https://forum.xda-developers.com/t/how-to-install-twrp-without-bootloader-unlocking.3862454/
when I did this to my pixel 3, whenever I'm trying the command adb reboot edl my phone keep switching off.
can anyone find me a solution for this??
Thanks in advance

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[Q] ColorOS and installing a custom room

Hello everyone, I was in China recently, and bought my OPO there. Therefore, it came with colorOS.
I wanted to change it to the rom to SlimSaber. Unfortunately, I've been unable to do so.
To unlock the bootloader I'm using this set of instructions:
[GUIDE] OnePlus One - How to Unlock Bootloader, Install Custom Recovery and Root - http://forum.xda-developers.com/showthread.php?t=2788632
I think my problem is while unlocking the bootloader. I get into fastboot mode, and using the android-sdk devices I'm able to get the serial number of the phone.
But, when I run the fastboot OEM unlock, nothing happens. Everything should be erased, right? Well, that doesn't happen. After that, I enable the USB debugging, but after, when I'm supposed to disable the 'Updater recovery with system updates' I simply don't see that option.
Can anyone help me? Do you need any more info?
Tanks in advance;
Qskara said:
Hello everyone, I was in China recently, and bought my OPO there. Therefore, it came with colorOS.
I wanted to change it to the rom to SlimSaber. Unfortunately, I've been unable to do so.
To unlock the bootloader I'm using this set of instructions:
[GUIDE] OnePlus One - How to Unlock Bootloader, Install Custom Recovery and Root - http://forum.xda-developers.com/showthread.php?t=2788632
I think my problem is while unlocking the bootloader. I get into fastboot mode, and using the android-sdk devices I'm able to get the serial number of the phone.
But, when I run the fastboot OEM unlock, nothing happens. Everything should be erased, right? Well, that doesn't happen. After that, I enable the USB debugging, but after, when I'm supposed to disable the 'Updater recovery with system updates' I simply don't see that option.
Can anyone help me? Do you need any more info?
Tanks in advance;
Click to expand...
Click to collapse
Issue this command:
Code:
fastboot oem device-info
What does it return?
Transmitted via Bacon

[UNTESTED] Bootloader Unlock On Nokia 5.1 Plus

Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
BurningGrip3 said:
Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
Click to expand...
Click to collapse
any hero? (I'm afraid of running out of phone)
BurningGrip3 said:
Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
Click to expand...
Click to collapse
Hey don't post guides for other if you don't know what it means, You will get other people phones bricked.
FYI Nokia phones requires permission to unlock bootloader.
adb oem unlock doesn't work now a days for most of the phones as you know many companies has made rooting and changing roms difficult. (excluding OnePlus and Pixel).
BurningGrip3 said:
Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
Click to expand...
Click to collapse
For me it gave an error (FAILED (remote: unknown command)), where
Code:
fastboot flashing unlock
gave me an error on the device asking me if I wanted to unlock flashing or to cancel. I don't know if this helps anyone anything but it seems to have worked because if I run
Code:
fastboot flashing get_unlock_ability
I get the message (bootloader) unlock_ability = 1
BurningGrip3 said:
Hey guys,
I think I found a way to unlock the bootloader on the Nokia 5.1 Plus. I didn't do it yet, but can someone please try it and see if it works?
Instructions:
1. Boot into recovery. I made a guide on how to do that in case you don't know how. Here's the link:https://forum.xda-developers.com/nokia-x5/how-to/guide-how-to-access-recovery-global-t4054561
2. Select reboot to bootloader.
3. Run fastboot oem unlock from adb terminal and see if anything happens.
PS. Running adb reboot fastboot from pc doesn't work-the phone just restarts-but rebooting to bootloader option from recovery actually gets it to fastboot mode.
If it works please tell me in a reply.
Click to expand...
Click to collapse
No , you cant unlock the bootloader by this way for this device
Nokia 5.1 plus bootloader unlock use mtk universal V5 tool it's easy to use
Macc40 said:
Nokia 5.1 plus bootloader unlock use mtk universal V5 tool it's easy to use
Click to expand...
Click to collapse
Sure it will work with subject device?

TWRP / Unlock Bootloader on Cubot P30 (MT6763V)

Hi guys,
im looking forward to unlock the bootloader on my Cubot P30.
The phone is responding in USB debugging moder over the shell, for example when I´m typing "adb devices" or "fastboot reboot bootloader".
But in fastboot afer restart the device unfortunately doesn´t respond.
I even dont really know if the Bootloader is locked or not. The OEM Unlock slider under developer settings is set.
Furthermore The Recovery menu is in chinese, so i also dont know if there is a chance to doublecheck.
I tried flashing an Image over the Shell in case the booloader is unlocked but without success.
Also I cant´t find TWRP for this device, it seems there is no support for Cubot P30, isn´t it.
Hope there is a chance to update the device to Android 10 or Lineage, thanks in advance.
Update: The device is now unlocked. I flashed the Lineage 17.1 and unfortunately the device is still rebooting. Has somone a working image for this device?
Hello, how do you unlock your phone?
Mine Is P40 and same issue.
So if you tell me the way i really appriciate.
Thank you.
Unlock Bootloader & Root Android
Flashing process
1. Unlock Bootloader on Android Devices:
getdroidtips.com/unlock-bootloader-via-fastboot-on-android
2. Install custom recovery:
twrp.me/Devices
3. Root [Download & install supersu.zip via twrp, or root using magisk]:
getdroidtips.com/root-ulefone-power-6

relock bootloader but no OS help please

hello,
i did unlock the bootloader for my zenfone 7 pro
and installed twrp recovery then rooted via magisk
cuz I wanted voLTE but it didn't work for me so I wanted to be back to stock
I relock the phone using fastboot command
fastboot oem asus-lock
it did relock my phone
but there is no OS nor Recovery !
when I power my phone on the fastboot UI appears. even if I select recovery nothing changes. opens fastboot only
how to re install the firmware ? help plz
in case anyone has the same problem.
i did solve it by flashing the (raw) firmware via fastboot ( Flash_AFT method )
M-772007 said:
hello,
i did unlock the bootloader for my zenfone 7 pro
and installed twrp recovery then rooted via magisk
cuz I wanted voLTE but it didn't work for me so I wanted to be back to stock
I relock the phone using fastboot command
fastboot oem asus-lock
it did relock my phone
but there is no OS nor Recovery !
when I power my phone on the fastboot UI appears. even if I select recovery nothing changes. opens fastboot only
how to re install the firmware ? help plz
Click to expand...
Click to collapse
There are new guides on how to get volte if you want to try again.
[Guide] Easy method to Enable Volte (with root) on Tmobile and maybe other networks on Android 11 and maybe 10
So first you have to root. I used twrp and magisk. There are guides on how to do that you can find by searching around. Then once you do that, follow these directions, What I did was manually entered all of these setprop commands below, on the...
forum.xda-developers.com
This is one but there are others if you need the help.
After relock bootloader i can send phone to warranty?
I tried to relock the phone with the command "fastboot oem asus-lock", but it shows "waitting for any device" and my phone just sit there and do nothing..
Any other method to relock the Zenfone 7 pro?
M-772007 said:
hello,
i did unlock the bootloader for my zenfone 7 pro
and installed twrp recovery then rooted via magisk
cuz I wanted voLTE but it didn't work for me so I wanted to be back to stock
I relock the phone using fastboot command
fastboot oem asus-lock
it did relock my phone
but there is no OS nor Recovery !
when I power my phone on the fastboot UI appears. even if I select recovery nothing changes. opens fastboot only
how to re install the firmware ? help plz
Click to expand...
Click to collapse
I believe that relock is impossible and but to make the device recovery to installed status of stock rom keeping with unlock bootloader.
Please see my post. May make it help or not.
When I try to burn rom with TWRP, img burns but it doesn't start and zip gives an error and cannot burn.
When I first burned custom ROM (unofficial AEX), it did not start, so when I deleted the data from TWRP, it seems that I deleted things that should not be erased, so even if I burn it from the zip file, with the error message in the image below I...
forum.xda-developers.com

Question Lenovo Phab plus PB1-770M won't go into bootloader

Hi All,
I apologize if this is the wrong forum, or if this question has been asked elsewhere. I think my phablet no longer has a dedicated forum. I have a Phab Plus, PB1-770M that I'm trying to unlock the bootloader on. but I can't seem to get into bootloader mode. I can connect to the device with ADB, and I can run adb reboot recovery without issues, but when I try to adb reboot bootloader, it reboots and just hangs at the lenovo splash screen.
Is there anything I need to do first to get into bootloader? Is there any other way to unlock the bootloader?
I'm trying to put a more recent version of LineageOS on it, and I need to get the bootloader unlocked.
Thanks for any help,
Ivan
iblackford said:
Hi All,
I apologize if this is the wrong forum, or if this question has been asked elsewhere. I think my phablet no longer has a dedicated forum. I have a Phab Plus, PB1-770M that I'm trying to unlock the bootloader on. but I can't seem to get into bootloader mode. I can connect to the device with ADB, and I can run adb reboot recovery without issues, but when I try to adb reboot bootloader, it reboots and just hangs at the lenovo splash screen.
Is there anything I need to do first to get into bootloader? Is there any other way to unlock the bootloader?
I'm trying to put a more recent version of LineageOS on it, and I need to get the bootloader unlocked.
Thanks for any help,
Ivan
Click to expand...
Click to collapse
The bootloader mode doesn't actually have an interface, it's just a boot logo.
Use a computer and run "fastboot oem unlock", then flash a recovery to flash my ROMs.

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