Can you underclock with a locked bootloader?

[Nodnarb1028]

New to rooting and just wondering if tbis is possible.

Verizon Galaxy S4 - VRUAME7

 

[Golfdriver97]

New to rooting and just wondering if tbis is possible.

Verizon Galaxy S4 - VRUAME7

I think you can. Be careful how much you underclock. If you do it too much, Android itself won't be able to function.

 

[Paul627g]

Most obvious sign will be crashes or force closings... If it get extreme enough you could have a full system crash resulting in having to flash the whole system to recover from, possibly even a brick.

 

[Nodnarb1028]

Yes I know the risks. My cousin underclocked his Gs4 to half speed. Saves tons of battery. I must wondering if it's possible.

Verizon Galaxy S4 - SCH-I545 - VRUAME7

 

[tech_head]

Yes I know the risks. My cousin underclocked his Gs4 to half speed. Saves tons of battery. I must wondering if it's possible.

Verizon Galaxy S4 - SCH-I545 - VRUAME7

Not sure if it's possible.
The kernel would need to support it. If you need a custom kernel, you will not be able to flash it due to a locked bootloader.
You would need to use something like safestrap in a factory based ROM with a new kernel.