Develop Bugs

One doubt about anti roll back

I updated with global stable 9.5.17 ROM. BL not unlocked. Applied for unlocking done . My doubt is after unlocking, if I flash custom ROMs , will my phone brick ? If I don't flash previous version of miui , any chance to brick. ?
I found more threads here , but I require answer for this only.

just flash latest custom rom thats it dont flash any firmware or stable/beta miui roms

[Question] About flashing non base miui rom

im at miui 9.5.22 china stable,i heard if i flash lower version miui will make my phone break , so can i flash non base miui rom like lineageos,treble rom without breaking my devices ? or flash lower miui rom without firmeware update in it ? . thanks :fingers-crossed:

What is the difference between those firmwares?

Hello.
I want to flash latest firmware, running Syberia ROM, but I want to know what are the differences between: FW, FW-less and FW-non-arb?
Thanks.

If you are still anti rollback (arb) 3, installing the latest firmware (FW) will update your bootloader, thus you will have arb 4.
Fw less roms come without the firmware. since there is no firmware, no way to trigger ARB.
Fw-non-arb are firmware files without the bootloader part, again no bootloader so arb will not be triggered.

t.hasan1 said:
If you are still anti rollback (arb) 3, installing the latest firmware (FW) will update your bootloader, thus you will have arb 4.
Fw less roms come without the firmware. since there is no firmware, no way to trigger ARB.
Fw-non-arb are firmware files without the bootloader part, again no bootloader so arb will not be triggered.
Click to expand...
Click to collapse
Thanks!

t.hasan1 said:
If you are still anti rollback (arb) 3, installing the latest firmware (FW) will update your bootloader, thus you will have arb 4.
Fw less roms come without the firmware. since there is no firmware, no way to trigger ARB.
Fw-non-arb are firmware files without the bootloader part, again no bootloader so arb will not be triggered.
Click to expand...
Click to collapse
I have a Redmi Note 5 China with MIUI 9.6.4.0 stable, I want to install some custom rom, liquid remix or havoc, I will download the latest firmware ''MIUI 10 8.12.27 Global / China Beta ROM Firmware'' but I do not know which one do I do? ! FW, FW-less or FW-non-arb?

Dead Pool Brasil said:
I have a Redmi Note 5 China with MIUI 9.6.4.0 stable, I want to install some custom rom, liquid remix or havoc, I will download the latest firmware ''MIUI 10 8.12.27 Global / China Beta ROM Firmware'' but I do not know which one do I do? ! FW, FW-less or FW-non-arb?
Click to expand...
Click to collapse
Since 8.12.27 is the newest rom available you can install only FW as this would not trigger ARB (Both 9.6.4.0 and 8.12.27 are ARB4)

Do I need to update firmware before flashing custom rom?

I am currently on MIUI Global 9.5.19.0. Do I need to flash the latest firmware before installing an android 9 or 10 custom rom?

Yes buddy u have to flash atleast a pie firmware
(I suggest to flash 9.4.25 firmware, as it is best Pie Firmware)
U can download from Xiaomi firmware updater

Thanks man!!

Is it possible to downgrade the Android version to a custom ROM?

I am unlocking the bootloder on my mobile Android 9 miui 11.3, I want to run Xiaomi eu's Android 8.1 miui 9 custom rom now. Do I need any frimwear to install custom ROM on this device?

I think Eu ROM flashes the firmware automatically, so u don't need to flash firmware by yourself.
But but but please check the ARB version of firmware