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VBmeta

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NickOp

Member
Jul 21, 2021
13
0
Realme 7 Pro
VBmeta file for a device is same for all types of custom recoveries such as twrp , pitch black , orange fox? Or different for different recoveries and how can I download it?
 

Kenora_I

Senior Member
Jun 12, 2021
1,155
3
219
Ireland
Redmi 7A
Samsung Galaxy A21s
VBmeta file for a device is same for all types of custom recoveries such as twrp , pitch black , orange fox? Or different for different recoveries and how can I download it?
It is specific for a device.
vbmeta is responsible for checking initial boot to enter into boot or in recovery mode
Something like that. But a modified vbmeta disables secure boot.
Depends on what your device is.
If you need it for some customization it would be outlined in the guide and given there for download.
 

NickOp

Member
Jul 21, 2021
13
0
Realme 7 Pro
It is specific for a device.
vbmeta is responsible for checking initial boot to enter into boot or in recovery mode
Something like that. But a modified vbmeta disables secure boot.
Depends on what your device is.
If you need it for some customization it would be outlined in the guide and given there for download.
I want to flash pitch black recovery to flash evolution X 5.9 my device is realme 7 pro
 

Kenora_I

Senior Member
Jun 12, 2021
1,155
3
219
Ireland
Redmi 7A
Samsung Galaxy A21s
I want to flash pitch black recovery to flash evolution X 5.9 my device is realme 7 pro
Follow the guide step by step and youll be fine.
Ive linked the post above.
 

jwoegerbauer

Senior Member
Jul 11, 2009
5,921
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VBmeta file for a device is same for all types of custom recoveries such as twrp , pitch black , orange fox? Or different for different recoveries and how can I download it?
A vbmeta.img per se has NOTHING to do with Custom Recovery used. The vbmeta.img is part of any stock Android OS since version 4. It implements the Android Verified Boot mechanism, means vbmeta.img holds the hash for Android's boot and often also other partitions. vbmeta. img is a security method what ensures Android OS isn't got tampered.

If you want to modify stock Android OS's system then you have to prevent bootloader of reading it before. This most times is achieved by replacing default vbmeta.img by a patched one. This patching typically is done by running
Code:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
 
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Kenora_I

Senior Member
Jun 12, 2021
1,155
3
219
Ireland
Redmi 7A
Samsung Galaxy A21s
A vbmeta.img per se has NOTHING to do with Custom Recovery used. The vbmeta.img is part of any stock Android OS since version 4. It implements the Android Verified Boot mechanism, means vbmeta.img holds the hash for Android's boot and often also other partitions. vbmeta. img is a security method what ensures Android OS isn't got tampered.

If you want to modify stock Android OS's system then you have to prevent bootloader of reading it before. This most times is achieved by replacing default vbmeta.img by a patched one. This patching typically is done by running
Code:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
Here is a great explantion once again by the famed jwoegerbauer :)
you can count on him for anything
But yeah, you’ll have to find a patched vbmeta.img The mods removed it in the post for some reason
 

NickOp

Member
Jul 21, 2021
13
0
Realme 7 Pro

NickOp

Member
Jul 21, 2021
13
0
Realme 7 Pro
A vbmeta.img per se has NOTHING to do with Custom Recovery used. The vbmeta.img is part of any stock Android OS since version 4. It implements the Android Verified Boot mechanism, means vbmeta.img holds the hash for Android's boot and often also other partitions. vbmeta. img is a security method what ensures Android OS isn't got tampered.

If you want to modify stock Android OS's system then you have to prevent bootloader of reading it before. This most times is achieved by replacing default vbmeta.img by a patched one. This patching typically is done by running
Code:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
Plz tell
 

jwoegerbauer

Senior Member
Jul 11, 2009
5,921
13
1,425
European Union
The typical roadmap

Code:
adb devices
adb reboot fastboot
fastboot reboot fastboot 2>nul
fastboot flashing unlock
fastboot --disable-verity --disable--verication flash vbmeta <VBMETA.IMG>
fastboot flash recovery <REVOVERY.IMG>
fastboot reboot recovery
 

jwoegerbauer

Senior Member
Jul 11, 2009
5,921
13
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You can pass to Fastboot any vbmeta.img as long as its filesize doesn't exceed filesize of vbmeta.img present in actual Android OS. A vbmeta.img with filesize of 128 Bytes in theory is sufficient, this because only the byte at file's offset 120 get altered by Fastboot.

It's on you.
 
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NickOp

Member
Jul 21, 2021
13
0
Realme 7 Pro
You can pass to Fastboot any vbmeta.img as long as its filesize doesn't exceed filesize of vbmeta.img present in actual Android OS. A vbmeta.img with filesize of 128 Bytes in theory is sufficient, this because only the byte at file's offset 120 get altered by Fastboot.

It's on you.
VBmeta file is compulsory for recovery..sorry for irritating but I did not get that . Yesterday I tried to flash custom recovery also it got flashed but it stuck at bootloop then I flashed the stock ROM. Plz help me bcoz I didn't got that 😟
 

jwoegerbauer

Senior Member
Jul 11, 2009
5,921
13
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European Union
The main problem is that service center in not there in my town.also those guys in service center will not install custom ROMs for u.
IMO it's NOT the task of any service center to tamper an Android device - will say to flash a Custom ROM, but to reset a softbricked device to the state when it came into market if you aren't able to manage it yourself. :)
 

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    VBmeta file for a device is same for all types of custom recoveries such as twrp , pitch black , orange fox? Or different for different recoveries and how can I download it?
    A vbmeta.img per se has NOTHING to do with Custom Recovery used. The vbmeta.img is part of any stock Android OS since version 4. It implements the Android Verified Boot mechanism, means vbmeta.img holds the hash for Android's boot and often also other partitions. vbmeta. img is a security method what ensures Android OS isn't got tampered.

    If you want to modify stock Android OS's system then you have to prevent bootloader of reading it before. This most times is achieved by replacing default vbmeta.img by a patched one. This patching typically is done by running
    Code:
    fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
    1
    You can pass to Fastboot any vbmeta.img as long as its filesize doesn't exceed filesize of vbmeta.img present in actual Android OS. A vbmeta.img with filesize of 128 Bytes in theory is sufficient, this because only the byte at file's offset 120 get altered by Fastboot.

    It's on you.
    1
    It's always the same I can observe here: people without a profound knowledge of the facts think that they can improve an Android device. :)

    My advice: Take phone to autorized service center and let them fix it. :)