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Root Guide on how to safely undervolt?

Discussion in 'Android Devices' started by skytbest, Oct 22, 2010.

  1. skytbest

    skytbest Active Member
    Thread Starter
    15

    Oct 22, 2010
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    Connecticut
    I've been looking around for a guide on how to safely undervolt my droid 2 but I haven't been able to find any. If anyone could point me to one they know that would be great. Or if you could explain briefly how to undervolt that would be great. I know how to actually undervolt the phone, I'm just wondering if there are any limitations I should know about, or a certain number I should never go below, or what will happen if I go too low.

    Thanks
     

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  2. Cilraaz

    Cilraaz Well-Known Member
    38

    Sep 14, 2010
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    If you go too low, you'll know it. The phone will hard lock or reboot.
     
  3. inssane

    inssane Well-Known Member
    163

    Dec 17, 2009
    1,851
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    Chi-Town
    Surprisingly I am on 1.3 ulv and stable for the half day so far. I did 1.35 ulv and that was fine too. No matter what voltage, 1.4+ don't work.
     
  4. trapperjohn

    trapperjohn Well-Known Member
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    Dec 25, 2009
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    Hi,
    It would be great to know what the actual voltages are for 1.3 and 1.35 at. Ulv levels.
    Thanks,
    Bryan
     
  5. Cilraaz

    Cilraaz Well-Known Member
    38

    Sep 14, 2010
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    If you set your phone to ULV at 1.3 or 1.35, you can open your terminal, su, and cat /proc/overclock/mpu_opps. This will show you the CPU speed profiles, complete with vsel setting.
     
  6. trapperjohn

    trapperjohn Well-Known Member
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    Dec 25, 2009
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    Thanks for the info!
    Much appreciated!
     
  7. trapperjohn

    trapperjohn Well-Known Member
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    Dec 25, 2009
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    Hi,
    I typed in the command got a question. What is vseld and vsel?
    Thanks for your help,
    Bryan
     

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