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Lock Bootloader

Hello,
when buying my Axon 10 G first I unlocked the Bootloader. But because of lack of roms I never installed a custom rom. In the meantime I updated to v2.5 G-version and I want to relock the Bootloader. Is there a safe way, because I think I don't have anymore fastboot.
Regards, Martin

Mart Son said:
Hello,
when buying my Axon 10 G first I unlocked the Bootloader. But because of lack of roms I never installed a custom rom. In the meantime I updated to v2.5 G-version and I want to relock the Bootloader. Is there a safe way, because I think I don't have anymore fastboot.
Regards, Martin
Click to expand...
Click to collapse
you can safely close the bootloader
if you first import your backup
then boot into the fastboot mode and then fastboot " fastboot flashing lock "
after flash these files
fastboot flash abl_a abl.elf
fastboot flash abl_b abl.elf
fastboot flash boot_a boot.img
fastboot flash boot_b boot.img
greetz

Thank you for your advice, but the backup is from v1.6 or older. I am sure that I will brick my phone this way.

Realme 5 stuck on fastboot

Someone plz help me I got stuck on fastboot mode while installing custom recovery and ROM

Phantom010 said:
Someone plz help me I got stuck on fastboot mode while installing custom recovery and ROM
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Click to collapse
Are you able to power off your device ?

Nameless Foe said:
Are you able to power off your device ?
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Click to collapse
Yes I can also install custom recovery but no ROM can boot up from custom recovery! If I keep device on fastboot mode it automatically turns off and turn on to fastboot mode.

Phantom010 said:
Yes I can also install custom recovery but no ROM can boot up from custom recovery! If I keep device on fastboot mode it automatically turns off and turn on to fastboot mode.
Click to expand...
Click to collapse
Are you able to extract the fast boot ROM onto your computer?
This includes :
boot.img
system.img
vendor.img
vbmeta.img

Nameless Foe said:
Are you able to extract the fast boot ROM onto your computer?
This includes :
boot.img
system.img
vendor.img
vbmeta.img
Click to expand...
Click to collapse
I have downloaded firmware of it but that file can not be extracted it was .ozip file

Phantom010 said:
I have downloaded firmware of it but that file can not be extracted it was .ozip file
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Click to collapse
Your gonna have to find a way to convert to a regular zip then extract those 4 .img files out of the zip

Nameless Foe said:
Your gonna have to find a way to convert to a regular zip then extract those 4 .img files out of the zip
Click to expand...
Click to collapse
name of the firmware is RMX1911EX_11_OTA_1610_all_qom4EBEvsckf.ozip it does not extract from pc.

Phantom010 said:
name of the firmware is RMX1911EX_11_OTA_1610_all_qom4EBEvsckf.ozip it does not extract from pc.
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Click to collapse
Ok. So is that the file you downloaded to your pc ?

Nameless Foe said:
Ok. So is that the file you downloaded to your pc ?
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Click to collapse
This is the firmware I have downloaded from official realme site it can't be extracted.

Phantom010 said:
This is the firmware I have downloaded from official realme site it can't be extracted.
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Click to collapse
Try to re-download it. Make sure you completely delete the current one from your pc.
Bare with me. I'm at work now. I won't be able to respond as fast

Nameless Foe said:
Try to re-download it. Make sure you completely delete the current one from your pc.
Bare with me. I'm at work now. I won't be able to respond as fast
Click to expand...
Click to collapse
If you can get those 4 files extracted to your pc, you will need to wipe your phone via fast boot, then flash all 4 of them files separately via fastboot and your phone should go back to normal.

Nameless Foe said:
If you can get those 4 files extracted to your pc, you will need to wipe your phone via fast boot, then flash all 4 of them files separately via fastboot and your phone should go back to normal.
Click to expand...
Click to collapse
ok replay when you are free thanks for giving your time man, one thing wipe mean from pc i have installed twrp also. i am confused about why custom rom does not boot up when i install it from twro it installs successfully after system reboot it goes directly to fastboot mode.

Phantom010 said:
ok replay when you are free thanks for giving your time man, one thing wipe mean from pc i have installed twrp also. i am confused about why custom rom does not boot up when i install it from twro it installs successfully after system reboot it goes directly to fastboot mode.
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Click to collapse
If your phone is bricked, which it seems that it is...
Your gonna have to flash the stock firmware if you want to be able to use the phone again
I'm not sure why the rom won't boot and goes back to fast boot mode we will continue once your able to flash the stock firmware

Phantom010 said:
Someone plz help me I got stuck on fastboot mode while installing custom recovery and ROM
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Click to collapse
Any luck ?

Nameless Foe said:
Any luck ?
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Click to collapse
Nameless Foe said:
Oh **** man I got the same problem from starting to end same
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Click to collapse

Nameless Foe said:
If your phone is bricked, which it seems that it is...
Your gonna have to flash the stock firmware if you want to be able to use the phone again
I'm not sure why the rom won't boot and goes back to fast boot mode we will continue once your able to flash the stock firmware
Click to expand...
Click to collapse
If only I managed to access recovery mode your method would have worked. I tried flashing stock ROM recovery and Orange fox recovery but it always bootloops to fastboot way sooner than I can finish all of my steps. Same case when I tried to erase boot it bootloops faster than the process to be finished.
Can you please suggest me any method to stop bootloops atleast in fastboot mode?

Nameless Foe said:
Any luck
Click to expand...
Click to collapse
Plz help i have realme 7pro and when i starts my phone it goes to fastboot mode and restarts again and again and comes to fastboot mode plz help i am tensed from last 3 days

NickOp said:
Plz help i have realme 7pro and when i starts my phone it goes to fastboot mode and restarts again and again and comes to fastboot mode plz help i am tensed from last 3 days
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Click to collapse
OK ik resetting my pc right now. It's gonna be some time before I can assist you somone else might before me

Nameless Foe said:
OK ik resetting my pc right now. It's gonna be some time before I can assist you somone else might before me
Click to expand...
Click to collapse
now plz help i cannot explain that how much frustrated i am

NickOp said:
now plz help i cannot explain that how much frustrated i am
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Click to collapse
have you done in extracting the *.img in the ofp file?
if yes then go to your cmd and type the command:
1. fastboot erase boot && fastboot erase dtbo && fastboot erase recovery && fastboot erase metadata && fastboot erase vbmeta && fastboot erase system && fastboot erase vendor && fastboot erase userdata && fastboot reboot-bootloader
the command was based from this thread : https://forum.xda-developers.com/t/realme-5-stuck-on-fastboot-mode.4096691/
then after issuing the previous command change the "erase" to "flash":
2. fastboot flash boot boot.img && fastboot flash dtbo dtbo.img &&...... (don't include the metadata group)
i just fixed mine today

Boot custom ROM - Android

Hello,
How can i boot up custom ROM Android (LineageOS) ?
Do i need to have change something inside boot.img / or something command?
Note:
Phone (Umidigi Power)
Android 9
Unlocked bootloader,
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
What i want is:
1. I want a Custom OS like (LineageOS)
2. Install another ROM or fix the stock ROM
What i found out.
1. After flash a system i got bootloop, see umdiigi power boot logo and reboot
2. Stock ROM / deos not work anymore before i get black screen
3. use alot of commands and nothing working
4. try to install system from TWRP but bootloop
Questions is (I think):
How i can fix it or install custom OS
Can you help me?
Thanks for your time

007fred62 said:
Hello,
How can i boot up custom ROM Android ?
Do i need to have change something inside boot.img?
Note:
Phone (Umidigi Power)
Android 9
Unlocked bootloader,
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.im
Can you help me?
Thanks for your time
Click to expand...
Click to collapse
look up for Project Treble this are custom rom that only require you to flash system.img

The Fastboot command mentioned only prepares phone to allow modifications of Android system, e.g. for installing a Custom ROM. A Custom ROM gets flashed via a Custom Recovery you flashed before.

ineedroot69 said:
look up for Project Treble this are custom rom that only require you to flash system.img
Click to expand...
Click to collapse
there to download it?

jwoegerbauer said:
The Fastboot command mentioned only prepares phone to allow modifications of Android system, e.g. for installing a Custom ROM. A Custom ROM gets flashed via a Custom Recovery you flashed before.
Click to expand...
Click to collapse
I have try this command:
fastboot --disable-verity --disable-verification flash system system.img
still not boot up after this command

007fred62 said:
I have try this command:
fastboot --disable-verity --disable-verification flash system system.img
still not boot up after this command
Click to expand...
Click to collapse
As I can see you didn't get it.

what? you want custom recovery like TWRP or custom rom like LineageOS?
also we can barely understand you.. please write in full sentence don't type fragment phrases

ineedroot69 said:
what?you want custom recovery like TWRP or custom rom like LineageOS?
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Click to collapse
Sorry for my Questions. updated post 1.
i trying to find another custom OS or fix the system.
Yes like LineageOS

Question Treble GSI

Hi, how can i install a treble GSI without bootloop on this phone? THX

Have you unlocked the bootloader? If yes, then just go to the Developer Options & Select DSU Loader. You will be automatically offer the latest Android 12 DP2 with & w/o GMS bundle.

aimsjahan said:
Have you unlocked the bootloader? If yes, then just go to the Developer Options & Select DSU Loader. You will be automatically offer the latest Android 12 DP2 with & w/o GMS bundle.
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yes but i want something installed, not emulated, also with 144hz enabled, even if i don't have the triggers

ASUS only validated GSI for Zenphone 8 so far. I think we have to wait for our turn.

aimsjahan said:
ASUS only validated GSI for Zenphone 8 so far. I think we have to wait for our turn.
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Click to collapse
No, i dont want A12 GSI, I want something like Lineage and stuff

Therazorsedge said:
No, i dont want A12 GSI, I want something like Lineage and stuff
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Click to collapse
Are you seeking a custom ROM based on LineageOS?

He mean gsi (not the dsu loader and not a custom rom )

aimsjahan said:
Are you seeking a custom ROM based on LineageOS?
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Click to collapse
Yes! i think it's not too complicated to make it boot on dtock recovery from Asus, anyone tried?
you have to erase system and from there, install via fastboot, i only need the command to try a PHH gsi

Rog 5is android 11 devices .
can be the system can only be flashed via fastbootd.
Use the comand
Fastboot -w
Fastboot flash system_a "name from the gsi.img"
Fastboot flash system_b "name from the gsi.img"
But I think that these two must also be flashed so that the gsi boots.
fastboot --disable-verity flash vbmeta_a vbmeta.img
fastboot --disable-verity flash vbmeta_system_a vbmeta_system.img
fastboot --disable-verity flash vbmeta_b vbmeta.img
fastboot --disable-verity flash vbmeta_system_b vbmeta_system.img
Vbmeta and vbmeta sytem use from the stock rom

ChrisFeiveel said:
Rog 5is android 11 devices .
can be the system can only be flashed via fastbootd.
Use the comand
Fastboot -w
Fastboot flash system_a "name from the gsi.img"
Fastboot flash system_b "name from the gsi.img"
But I think that these two must also be flashed so that the gsi boots.
fastboot --disable-verity flash vbmeta_a vbmeta.img
fastboot --disable-verity flash vbmeta_system_a vbmeta_system.img
fastboot --disable-verity flash vbmeta_b vbmeta.img
fastboot --disable-verity flash vbmeta_system_b vbmeta_system.img
Vbmeta and vbmeta sytem use from the stock rom
Click to expand...
Click to collapse
Haha, i will have a bootloop? hahahaha
Anyone can try?

Question I do everything correctly to root but it keep booting in to the bootloader

My steps
1. oem unlock and unlock bootloader with the command
2. get the files from lmsa
3. Patch boot.img using magisk
4. Flash boot.img and vbmeta.img
5. Reboot using fastboot reboot
It should boot me normaly but it boots in to the boot loader

What device are you talking about ?

f1tm0t said:
What device are you talking about ?
Click to expand...
Click to collapse
Tab p11 4gig

Return the stock boot.
I can't tell you anything specific about this device. I own other.
If there is TWRP for your version of Android, flash Magisk.zip from TWRP.

f1tm0t said:
Return the stock boot.
I can't tell you anything specific about this device. I own other.
If there is TWRP for your version of Android, flash Magisk.zip from TWRP.
Click to expand...
Click to collapse
Threr is no twrp sadly

blocky3321 said:
My steps
1. oem unlock and unlock bootloader with the command
2. get the files from lmsa
3. Patch boot.img using magisk
4. Flash boot.img and vbmeta.img
5. Reboot using fastboot reboot
It should boot me normaly but it boots in to the boot loader
Click to expand...
Click to collapse
who told you to flash vbmeta.img?
You should flash patched_boot.img in fastbootd

You need to edit out vbmeta.img / vbmeta_system.img to actually disable verification. Change the byte at offset 123 from 0x00 to 0x03.
Another way is to use the following command when flashing vbmeta. You may need to use a relatively newer version of fastboot binary to get it work.
Code:
fastboot flash --disable-verity --disable-verification vbmeta vbmeta.img

mingkee said:
who told you to flash vbmeta.img?
You should flash patched_boot.img in fastbootd
Click to expand...
Click to collapse
I tried it i flashed patched boot.img only in fastbootd still boots me in to the bootloader

LSS4181 said:
You need to edit out vbmeta.img / vbmeta_system.img to actually disable verification. Change the byte at offset 123 from 0x00 to 0x03.
Another way is to use the following command when flashing vbmeta. You may need to use a relatively newer version of fastboot binary to get it work.
Code:
fastboot flash --disable-verity --disable-verification vbmeta vbmeta.img
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Click to collapse
now it only boot in to the bootloader earlier it would boot normaly if i did factory treset in recovery mode

blocky3321 said:
now it only boot in to the bootloader earlier it would boot normaly if i did factory treset in recovery mode
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Click to collapse
Which Magisk version did you use? From what I can tell any official Magisk version should work.
I haven't really tested the recent builds of vvb2060's Alpha or huskydg's Delta... so if you're using these versions I can't really help you much...
Additionally, you need to check which slot you are now, and through fastbootd check which slot actually has system, vendor and such. Normally the super partition only has enough size for one slot. You may have entered a wrong slot that doesn't have usable system.

blocky3321 said:
My steps
1. oem unlock and unlock bootloader with the command
2. get the files from lmsa
3. Patch boot.img using magisk
4. Flash boot.img and vbmeta.img
5. Reboot using fastboot reboot
It should boot me normaly but it boots in to the boot loader
Click to expand...
Click to collapse
Getting Started: What's Your Device ?
Tab p11 4gig
Device->settings->About : Model & Hardware -> Lenovo ??? (Tb-j606f,TB-J616F...) In your case stiker on box or on back.
mingkee said:
who told you to flash vbmeta.img?
Click to expand...
Click to collapse
???