Q: Undervolting the droid 4 in any particular rom?

[Cstryon]

So i found the info about overclocking, though its hard to understand (well for me at least.) I was wondering if there was a way to undervolt. I don't care for overclocking, though knowing how would be nice. But if i could undervolt my device to save battery life that would be great.
So does anyone know how, and have detailed info on how?
I'm currently on eclipse ics 1.2.1.

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[dewhashish]

you cant with a locked bootloader because you would have to install a new kernel, it may be possible with kexec once it's been ported over but I don't know when that will be

 

[phrir1]

http://forum.xda-developers.com/showthread.php?t=1754888

You can overclock/undervolt on the droid 4. It's been done on gb and now on ics. Read through the thread above. It's for the razr but works for the d4 as well. I am overclocked and undervolted.

There is more info here on the original project.

http://rootzwiki.com/index.php?/top...ojekt---Milestone-Overclock-for-OMAP4-Devices

 

[Cstryon]

http://forum.xda-developers.com/showthread.php?t=1754888

You can overclock/undervolt on the droid 4. It's been done on gb and now on ics. Read through the thread above. It's for the razr but works for the d4 as well. I am overclocked and undervolted.

Thanks I will check it out .



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[Cstryon]

Did you set up a script to run at start up. I'm not to confident in just going and doing it. Maybe you could give me some exambles?

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[dewhashish]

I installed the 2 zip files in safestrap, installed SetCPU. How do I undervolt this to save battery life? Also I can only choose speeds of 300, 600, 900, and 1200MHz.

 

[phrir1]

I am running infektion (awesome rom on droid hive) and its all baked in the rom. And I just changed the values in the init.d script.

 

[B-Unit]

I installed the 2 zip files in safestrap, installed SetCPU. How do I undervolt this to save battery life? Also I can only choose speeds of 300, 600, 900, and 1200MHz.

You will need to edit the values per the instructions in the rootzwiki link. Heres some reference settings from my device.

Stock voltages (from Moto)
1200Mhz : 61 (1.375V)
1000Mhz : 61 (1.374V)
800Mhz : 55 (1.313V)
600Mhz : 43 (1.200V)
300Mhz : 26 (1.025V)

My Current Custom settings
1400Mhz : 59 (1.360V)
1200Mhz : 47 (1.240V)
900Mhz : 45 (1.220V)
600Mhz(haven't tested undervolting)
300Mhz : 18 (0.950V)

EDIT: Also, I noticed this didnt seem to work well when installing from Safestrap (havent tried recently). May have to extract the 2 files to /system/lib/modules and load manually each boot per the instructions toward the bottom:
Load Modules(this kind of isn't necessary anymore, but none the less, always load symsearch.ko first):

# insmod /system/lib/modules/symsearch.ko
# insmod /system/lib/modules/overclock.ko