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Root Relocking bootloader

C

chalky378

Newbie
Hi again guys
As the title says is there any way of relocking the boot loader one iv rooted and installed recovery???
Also is there any real reason for the bootloader to stay unlocked.
Bit new to yhis so please dont flame me we all have to learn sometimes lol
And also whats the difference between the superuser app and super su app??
Thanks in advance for all the help and advice
Chalky
 
I'm not sure if re-locking the bootloader will work. Typically, a locked bootloader has a signature verification when you install new bootloaders to make sure you're installing an "approved" bootloader. I don't know if you can lock the bootloader with an unapproved/non-signed bootloader installed.

However, I absolutely would not do it. These custom recoveries are works-in-progress, and sometimes there are patches or bug fixes released for issues when they are discovered. In order to install an update, you'd have to unlock the bootloader again... which would wipe your device.

Once you've installed the custom recovery, you want to make sure that you have options to either get back to a stock device or fix problems if they're discovered and locking things back down really curtails your options.

Both of the Superuser apps accomplish the exact same thing... there are just minor layout/feature differences. Last I checked, SuperSU had a few more features and options than Superuser.
 
Leaving the bootloader unlocked allows you to flash custom kernels. I see no reason to relock it.
 
Ok cheers guys.
I tryed installing super su but for some reason i cant uninstall superuser app as i think it was installed when i rooted so looks like im stuck with it lol.
I must say after about 4 weeks of use(got it early) im really pleased with the tablet, it does lock up now and again but i can live with that as iv never had a android device that didnt freeze up at some point!!! But other than that ive had no problems at all
 
Guys, FYI, having an unlocked bootloader mainly gives you the ability to use the fastboot utility to flash things (among many others).

You can still re-flash a recovery image or a custom ROM with a locked bootloader, you'll just have to either manually use the flash_image utility (assuming you are rooted, of course) or use an app that utilizes it.

That being said, I'd leave it unlocked so you can more easily use fastboot should you need it.

Cheers!
 
Unforgiven said:
Am I mistaken about kernels?
Click to expand...

Well, I've usually flashed my kernels from custom recovery and they'll use the flash_image utility or an equivalent function (i.e., I see "flash_image.c" source in one of Koush's old github trees).

You need the bootloader unlocked to give you root which then gives you the ability to remount the partitions where the fun stuff lives (like /recovery or /system (where the kernel lives)).

As long as you've got a custom recovery installed, you should be able to flash ROMs, kernels, radios.

This is, of course, not true for all devices (i.e., the ones with true locked bootloaders like the DX where the custom recovery is not truly flashed but only runs in-memory).
 
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