[MOD][F.A.Q.][AROMA] Undervoltage Installer for every custom ROM/kernel [11 AUG]

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D-SHEL

Senior Member
Jun 19, 2010
319
247
Kazan, Rybnaya Sloboda
okytv.png

This will install undervoltage for every kernel. During flash you may choose -12.5, -25, -37.5, -50, -62.5, -75, -87.5, -100mV undervoltage or delete it. Powered by nice AROMA Installer 2.50 by amarullz

F.A.Q.

Q: What is the undervoltage?
A: This decrease voltage of the processor.

Q: What are the advantages of this?
A: Better battery life.

Q: This will reduce performance?
A: No.

Q: Can I install it on stock ROM/kernel?
A: No. ROM must be supported init.d scripts.

Q: What kind of undervoltage I need to choose?
A: Not all chips the same. Choose what you want and what will stand the processor.

Q: How can I check what undervoltage stand my processor?
A: Choose -100mV undervoltage first. If phone boots, try system stability test. If all is ok - your chip can handle this UV. If no, flash -87.5mV, try system stability test etc. StabilityTest app here.

Q: Can I use it on other phones?
A: Yes! But your kernel must supports udervolting by vdd_levels and ROM supports init.d scripts.

Q: Why touch screen not working in AROMA?
A: Re-calibrate your screen using AROMA Installer.

Q: How do i check if I have the mod flashed correctly?
A: Using SystemTuner or look here /sys/devices/system/cpu/cpufreq/vdd_table/vdd_levels

Requirements
  • CWM / 4EXT Recovery
  • Custom kernel
  • Custom ROM

Installation
  • Open recovery
  • Flash this package
  • Choose the undervoltage what you want

Changelog
v8
  • Added experimental -112.5mV undervoltage
  • Added experimental -125mV undervoltage
  • More informative choosing process
  • More informative progress bar
v7
  • AROMA Installer updated to 2.50
  • Deleted unnecessary languages from AROMA Installer
  • More information while installation
  • Small code changes
v6
  • Deleted unnecessary stuff from AROMA Installer
  • Changed icon in "Ready To Install" box
  • Small code changes
v5
  • Edited installation process
v4
  • Installer changed to AROMA 2.00
  • Added option to delete undervoltage
v3
  • Added installation of -12.5, -37.5, -62.5, -87.5mV UV
v2
  • Added installation of -25mV UV
  • Renamed to Undervoltage Installer
  • Small code changes
v1
  • Initial release

Downloads

Donation


Donators list
  • rousta_bout

Thank you so much! :)
 
Last edited:

loan92

Senior Member
Great job, I wanted to give you a tip ... during the flash plus choose these frequencies -25, -50, -75,-100mV, add -12.5, -37.5, -62.5, -87.5 mV ... I say so, because even on "System Tuner" and other programs for non htc device Scaling is 12.5 mv :D Good job and thanks again for your Mod! :)
 
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D-SHEL

Senior Member
Jun 19, 2010
319
247
Kazan, Rybnaya Sloboda
Great job, I wanted to give you a tip ... during the flash plus choose these frequencies -25, -50, -75,-100mV, add -12.5, -37.5, -62.5, -87.5 mV ... I say so, because even on "System Tuner" and other programs for non htc device Scaling is 12.5 mv :D Good job and thanks again for your Mod! :)

Thanks! I planned it :)
And maybe installer switched to AROMA 2.0.

UPD.
v3 in OP
 
Last edited:
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dobah

Senior Member
Dec 6, 2010
94
8
Will this work for the stock kernel? If it won't work then is there a recommended kernel to install (maybe faux)? A link to a kernel would be nice.
 

D-SHEL

Senior Member
Jun 19, 2010
319
247
Kazan, Rybnaya Sloboda
Will this work for the stock kernel? If it won't work then is there a recommended kernel to install (maybe faux)? A link to a kernel would be nice.

No, I think it not work with stock kernel.
It's 100% work with custom kernels. I tested it with faux and bricked. Make your choice in choosing the kernel.

---

Aaand, a little announce. v4 comes with nice AROMA Installer! :D
 
Last edited:

ninjabadger

Senior Member
May 13, 2012
608
123
Just what I was after, cheers.

Started with -75, no probs so far.

If I want -100 do I just re-flash zip and say not to all except -100 or do I need to delete anything first?

Sent from my SuperSensation.
OrDroid 9.0.
Bricked Kernel v1.36.
 

ninjabadger

Senior Member
May 13, 2012
608
123
-100 caused reboot so back to -75.

Still happy with that.

Like the new installer, but although a next button appears when completedI would recommend adding a note saying Undervolt complete press next to finish.

Thanks again for this mod.

Sent from my SuperSensation.
OrDroid 9.0.
Bricked Kernel v1.36.
 

D-SHEL

Senior Member
Jun 19, 2010
319
247
Kazan, Rybnaya Sloboda
-100 caused reboot so back to -75.

Still happy with that.

Like the new installer, but although a next button appears when completedI would recommend adding a note saying Undervolt complete press next to finish.

Thanks again for this mod.

Sent from my SuperSensation.
OrDroid 9.0.
Bricked Kernel v1.36.

Thanks for feedback.
For me -100mV is buggy too. Fine working with -87.5mV ;)
Okey, I'm touching the installer.
 

ninjabadger

Senior Member
May 13, 2012
608
123
No problem, perhaps I could try that uv too.

Added you too my Sig.

Sent from my SuperSensation.
OrDroid 9.0.
Bricked Kernel v1.36.
D-shel -75uv Mod.
 
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ninjabadger

Senior Member
May 13, 2012
608
123
-87.5uv running great for me, tried stress test and various apps.

Fingers crossed for any kind of battery saving.

Sent from my SuperSensation.
OrDroid 9.0.
Bricked Kernel v1.36.
D-shel Undervoltage Mod.
 

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  • 85
    okytv.png

    This will install undervoltage for every kernel. During flash you may choose -12.5, -25, -37.5, -50, -62.5, -75, -87.5, -100mV undervoltage or delete it. Powered by nice AROMA Installer 2.50 by amarullz

    F.A.Q.

    Q: What is the undervoltage?
    A: This decrease voltage of the processor.

    Q: What are the advantages of this?
    A: Better battery life.

    Q: This will reduce performance?
    A: No.

    Q: Can I install it on stock ROM/kernel?
    A: No. ROM must be supported init.d scripts.

    Q: What kind of undervoltage I need to choose?
    A: Not all chips the same. Choose what you want and what will stand the processor.

    Q: How can I check what undervoltage stand my processor?
    A: Choose -100mV undervoltage first. If phone boots, try system stability test. If all is ok - your chip can handle this UV. If no, flash -87.5mV, try system stability test etc. StabilityTest app here.

    Q: Can I use it on other phones?
    A: Yes! But your kernel must supports udervolting by vdd_levels and ROM supports init.d scripts.

    Q: Why touch screen not working in AROMA?
    A: Re-calibrate your screen using AROMA Installer.

    Q: How do i check if I have the mod flashed correctly?
    A: Using SystemTuner or look here /sys/devices/system/cpu/cpufreq/vdd_table/vdd_levels

    Requirements
    • CWM / 4EXT Recovery
    • Custom kernel
    • Custom ROM

    Installation
    • Open recovery
    • Flash this package
    • Choose the undervoltage what you want

    Changelog
    v8
    • Added experimental -112.5mV undervoltage
    • Added experimental -125mV undervoltage
    • More informative choosing process
    • More informative progress bar
    v7
    • AROMA Installer updated to 2.50
    • Deleted unnecessary languages from AROMA Installer
    • More information while installation
    • Small code changes
    v6
    • Deleted unnecessary stuff from AROMA Installer
    • Changed icon in "Ready To Install" box
    • Small code changes
    v5
    • Edited installation process
    v4
    • Installer changed to AROMA 2.00
    • Added option to delete undervoltage
    v3
    • Added installation of -12.5, -37.5, -62.5, -87.5mV UV
    v2
    • Added installation of -25mV UV
    • Renamed to Undervoltage Installer
    • Small code changes
    v1
    • Initial release

    Downloads

    Donation


    Donators list
    • rousta_bout

    Thank you so much! :)
    3
    Oh, yea! Fixed :)
    2
    Can this mod crack my device?
    No.
    Your device maybe unstable. If this is so, you need to install smaller undervoltage.
    2
    how do you uninstall the script?

    sent from the Nudy bar, one handed.

    Delete file 21uv from /system/etc/init.d/
    2
    Home, sweet home :)
    v5 reuploaded into dev-host.
    Sorry for problems with downloading.