Question [Q] Why do we need to unlock the bootloader before rooting?

[kal27]

hi! so i just bought my rog phone 5, coming from xperia z (yeah i know). so based on my experience using xperia phone, rooting doesnt require unlocked bootloader, right? or did i just forget it coz im using custom roms?

im just not ready to unlock the bootloader and I WANT ROOT. theres so many ads

 

[aimsjahan]

hi! so i just bought my rog phone 5, coming from xperia z (yeah i know). so based on my experience using xperia phone, rooting doesnt require unlocked bootloader, right? or did i just forget it coz im using custom roms?

im just not ready to unlock the bootloader and I WANT ROOT. theres so many ads

AFAIK, unlocking bl is a prerequisite for rooting. Or else, the device wouldn't be able to execute 'fastboot flash' or 'fastboot boot' adb commands.

As for the ad issue, try 'dns.adguard.com' w/o quotes as private dns address (dns over tls).

 

[m8822]

because you need to modify the boot partition by flashing the patched boot. hence it has to be unlocked. otherwise you will not be able to flash the patched boot.

as simple as this.

 

[twistedumbrella]

By default, the bootloader only supports official signed images from the manufacturer. Since no engineering bootloader is available and we don't have the signing tools, the next best thing is to disable the restriction.

 

[kal27]

thanks everyone! this sure cleared things up. anyway is there a available custom rom? like cyanogenmod for phone 5?

 

[twistedumbrella]

thanks everyone! this sure cleared things up. anyway is there a available custom rom? like cyanogenmod for phone 5?

Still needs a proper device profile for that stuff