Develop Bugs

[INFO] Galaxy nexus all-in-one guide with tweaks for performance and battery life

ok, from my android tweaking and modding i know it can be somewhat hard to find everything you might need to make the most of your galaxy nexus so i will put links to them here along with providing support and my own little discoveries here...
This will include everything from guides to different type of tweaks, recommended settings, flashable mods, etc...you name it and it will probably be in here (as i update it)
Any suggestions are highly appreciated and will be added with proper credit
***disclaimer- I am not responsible for any damage you may do to your device, please make sure to have a backup before doing any of these tweaks***
(still a work in progress and expect much much more to come)

Guides/Toolkits
[GNex TOOLKIT] Drivers, Backup, Unlock, Root, CWM, Flash, Mods + MORE [VERIZON]
[EASIEST ROOT/UNLOCK TOOLKIT] Wugfresh Galaxy Nexus Root Toolkit v1.4

Build.prop tweaks
To use these just mount /system rw, open build.prop in a text editor, add/modify whichever lines you want, save, reboot recovery, wipe cache and dalvik cache, then reboot
Code:
#incoming ringer delay (already in build.prop) sets how soon (in ms) the phone starts ringing when a call comes in. set between 0 and 3000
ro.telephony.call_ring.delay=
Possible battery saver-
Code:
#disable sending usage data to google
ro.config.nocheckin=1
Code:
#sleep mode for battery savings. 0 power collapse suspend, 1 power collapse (best), 2 apps go to sleep, 3 show clock and wait, 4 wait for interrupt
pm.sleep_mode=
Code:
#change lcd density (already in build.prop), which is like changing the resolution on a windows computer can be anywhere from 240 to 360 (stock 320)
ro.sf.lcd_density=
Performance enhancement, may also help with battery life
Code:
#dalvik cache virtual memory size
dalvik.vm.heapsize= (stock 256m, recommended 320m)
dalvik.vm.heapstartsize= (stock 16m)
dalvik.vm.heapgrowthlimit= (stock 128m)
Can improve overall scrolling fluidity and speed
Code:
# This defines the max event window manager can
# handle in 1 s. We may adjust this # for performance
# reason later
windowsmgr.max_events_per_sec= (recommended 275)
General performance tweak
Code:
#disable the zygote loader
ro.wmt.blcr.enable=0
Extended jni checking is costly in terms of performance and battery life so disabling them is suggested
Code:
#disable extended dalvik jni checking
ro.kernel.android.checkjni=0
dalvik.vm.checkjni=0
Helps with overall performance
Code:
debug.performance.tuning=1
video.accelerate.hw=1
Helps increase picture/video taking quality and video viewing
Code:
#Raise Photo and video quality?
ro.media.enc.jpeg.quality=100
ro.media.dec.jpeg.memcap=8000000
ro.media.enc.hprof.vid.bps=8000000
ro.media.enc.hprof.vid.fps=65
Code:
#help to free up unused ram
persist.sys.purgeable_assets=1
Disables notification of usb debugging
Code:
#stop usb debugging on notification
persist.adb.notify=0
enables/disables (set to 0) dithering
Code:
#Improve screen quality at the cost of performance
persist.sys.use.dithering=1
Code:
#Use dalvik JIT compiler (Just In Time compiler is much faster and should be enabled by default)
dalvik.vm.execution-mode=int:jit
Code:
#disable camera sound?
persist.sys.camera-sound=0
Dalvik vm dexopt tweaks (USE ONE OR THE OTHER, NOT BOTH, i prefer option 2)-
option 1- disable dalvik checking, increases free ram but less optimized dalvik cache
Code:
dalvik.vm.verify-bytecode=false
dalvik.vm.dexopt-flags=v=n,u=n,o=v
option 2- enable more checking for a better performing dalvik cache but may use a little more ram
Code:
dalvik.vm.verify-bytecode=true
dalvik.vm.dexopt-flags=v=f,u=n,o=v

Init.d tweaks
To use mount /system rw, go to /system/etc/init.d create new file, add the lines in, save, and set permissions to rwxr-xr-x
Code:
#disable logcat
rm dev/log/main

Recoveries/Radios/Etc
List of flashable verizon radios-
radiosvzw-all-radios-in-flashable-zip/
Team win recovery project (custom touchscreen recovery-
twrp-212-touch-recovery-2012-04-20/
Clockwork recovery touch toro-
recovery-clockwork-touch-5.8.0.2-toro.img
clockwork recovery no skip edition-
recoverycdma-clockwork-recovery-v5504-no-skip-edition/

Mods/other
Suggested color control settings-
whitest whites
red 200
green 200
blue 265
gamma red -6
gamma green 0
gamma blue 8
omap4 gamma 6 (1.2 via franco app)
Morfic battery saving settings-
Red 135
green 135
blue 200
gamma red 0
gamma green 0
gamma blue 0
omap4 gamma 6 (1.2 via franco app)
Franco suggested settings-
Red 180
Green 192
Blue 200
gamma red -4
gamma green 0
gamma blue 5
omap4 gamma 6 (1.2 via franco app)
Custom auto brightness tweaks (super power save + conservative power save settings)
For both sets of settings-
Light sensor filter enabled yes
Window length 5s
Reset threshold 400 lux
Sample interval 5s
Use custom yes
Screen dim level 1
Allow light decrease yes
Decrease hysteresis 50%
Conservative power save settings-
Edit other levels under screen column-
15
17
19
21
23
25
27
30
32
40
49
54
65
75
100
125
146
179
211
225
Super power save settings-
Edit other levels under screen column-
6
8
9
11
12
14
16
19
23
27
33
40
50
64
85
97
111
146
178
225

Look here:
http://forum.xda-developers.com/showthread.php?t=1599025&highlight=battery
and here:
http://forum.xda-developers.com/showthread.php?t=1462020&highlight=battery

metalspring said:
Suggested color control settings for whitest whites-
red 200
green 200
blue 265
gamma red -6
gamma green 0
gamma blue 8
omap4 gamma 6 (1.2 via franco app)
Click to expand...
Click to collapse
Could you add the recommended overall color multiplier values?
Red 180
Green 192
Blue 200
Gamma (cannot remember, might be 1.2)

Hi,
Maybe an explanation for each tweaks would be great
X tweaks do this (for battery life or performance) but do this,etc...
The tweaks for the build.prop already exists (there is maybe 3/4 or more threads) in the Android section,some of these have not effect in ICS...
And maybe the general section is more appropriate...?
In any case thanks for this.

viking37 said:
Hi,
Maybe an explanation for each tweaks would be great
Click to expand...
Click to collapse
most have a simple explanation, the ones that dont are general performance/battery life tweaks
any in particular you dont understand?
I'll be happy to add in more detailed explanations on those

metalspring said:
most have a simple explanation, the ones that dont are general performance/battery life tweaks
any in particular you dont understand?
I'll be happy to add in more detailed explanations on those
Click to expand...
Click to collapse
Me,I understand because I've tested most of these and I use Google to understand what they do.But most of the users will ask,for sure...
You suggest some tweaks...I think you could suggest an explanation that comes with.
Not just a compilation of tweaks...
It's just my opinion...

Theshawty said:
Could you add the recommended overall color multiplier values?
Red 180
Green 192
Blue 200
Gamma (cannot remember, might be 1.2)
Click to expand...
Click to collapse
Those are included in the franco app but i guess i can put them in too, maybe morfics battery saver ones too if someone posts them (or i find them somewhere)
viking37 said:
Me,I understand because I've tested most of these and I use Google to understand what they do.But most of the users will ask,for sure...
You suggest some tweaks...I think you could suggest an explanation that comes with.
Not just a compilation of tweaks...
It's just my opinion...
Click to expand...
Click to collapse
I did add some explanations but i still think many explain themselves...unless you're talking about the dalvik dexopt ones...those are somewhat technical

metalspring said:
List of flashable verizon radios-
radiosvzw-all-radios-in-flashable-zip/
Team win recovery project (custom touchscreen recovery-
twrp-212-touch-recovery-2012-04-20/
Clockwork recovery touch toro-
recovery-clockwork-touch-5.8.0.2-toro.img
clockwork recovery no skip edition-
recoverycdma-clockwork-recovery-v5504-no-skip-edition/
Click to expand...
Click to collapse
These all look to be only Verizon / cdma versions,why post this in the GSM section?

For Trinity Spiceeeee use these values:
Multipliers:
Red 135(0000)
Green 135(0000)
Blue 200(0000)
Gamma: 0,0,0
Give your brain some time to adjust like Master Morfic says and you'll never wanna go back to stock colors again
Also play around with Gamma/Omap4 control for contrast
Verstuurd van mijn Galaxy Nexus met Tapatalk

odin13 said:
For Trinity Spiceeeee use these values:
Multipliers:
Red 135(0000)
Green 135(0000)
Blue 200(0000)
Gamma: 0,0,0
Give your brain some time to adjust like Master Morfic says and you'll never wanna go back to stock colors again
Also play around with Gamma/Omap4 control for contrast
Verstuurd van mijn Galaxy Nexus met Tapatalk
Click to expand...
Click to collapse
Are you sure they're the same? also what about OMAP?

What do you mean?
Verstuurd van mijn Galaxy Nexus met Tapatalk

odin13 said:
What do you mean?
Verstuurd van mijn Galaxy Nexus met Tapatalk
Click to expand...
Click to collapse
1) Are you sure the values are the same or they're just similar?
2) What did you set for OMAP4 Gamma Interface?

3rdstring said:
These all look to be only Verizon / cdma versions,why post this in the GSM section?
Click to expand...
Click to collapse
I just put the Verizon/cdma versions up first since that's what I have, I'll add in the sprint and GSM versions too if someone can give me a link to them

Just tried some of your tweaks (build.prop) and coloursettings and everything seems to be working fine. Colours look similiar to Trinities, little better imo. While scrolling a bit it feels a little bit faster, but that can just be the result of a placebo though.
Thnx for posting this!

Added custom auto brightness tweaks for custom roms with that option (should help save a lot of battery, actually can go lower than manual brightness)

Tweaked brightness settings - battery saving and readable (edit through CM settings)

I've come up with some great (I think so..) brightness settings for the Razr M. I worked on this to make sure of battery savings while remaining comfortably readable under any light conditions. So here they are if you are interested in having a go:
0 lux - 4% screen brightness
2 lux - 4%
3 lux - 6%
7 lux - 8%
22 lux - 10%
63 lux - 14%
180 lux - 22%
511 lux - 31%
1447 lux - 43%
4095 lux - 57%
11585 lux - 74%
32768 to infinity - 95%
You have to edit them in manually through CM settings, attached is the smooth graph of the outcome (from CM itself):
One thing that has annoyed me on any phone I've had is the auto brightness settings, so I did a bit a research into how the human eye perceives light increase, and its based roughly on log(lux), increasing screen brightness by ^2.5 each step. Result is that I wrote an excel sheet (also attached) with some cool maths where you can adjust some variables to tailor an auto-brightness curve to your taste.
I made a few assumptions specific to the Razr M for the above settings:
- It has a minimum light reading of 2 lux even in the darkest of darks (my defy did the same thing - might be a motorola thing)
- The lux reading is approximately accurate (my galaxy note 8 and Razr M give VERY similar readings under the same light sources)
- I topped the lux reading out at 32k (it does read up to 65k) because its around the starting value of direct sunlight, and it also happens to be a nice round number
Just thought I'd share because I think I nailed the auto brightness settings on this device.
Cheers

How did you get that many step points? I only see 0, 15, 100, 3000 and 8000-infinity.
I am running CM11.2 (4.4.3).
---------- Post added at 10:26 AM ---------- Previous post was at 10:14 AM ----------
Nevermind. Found it by long pressing a segment and choosing "split". Not real intuitive but it works.

Yeah you have to add in a few extra points with my setup. You could probably skip say every second point and it would work almost as well. But the built in brightness points ramped up to quickly for my liking - far brighter then necessary.

Where exactly do you go to in CM to modify these settings? I can't find them...

Display&Lights -- Brightness -- click on the settings icon next to the slider

I didn't mention in the first post, but the excel sheet is very customisable...
If you want to lower brightness there are several ways:
1. lower the maximum brightness
2. Increase the curve value (this affects the middle range of the curve mostly)
3. Increase the maximum lux value
Or if you want to increase brightness, just do the opposite of the points above. You know you have good settings when it looks the same always (ie doesn't suddently appear dim or bright). I think my default value are pretty close. I spent some time fine tuning, but like anything, there is always room for improvement
I also did this calculator so I didn't have to run another app in the background to control auto brightness.. save on a few MB of ram anyway.

Rufus said:
I didn't mention in the first post, but the excel sheet is very customisable...
If you want to lower brightness there are several ways:
1. lower the maximum brightness
2. Increase the curve value (this affects the middle range of the curve mostly)
3. Increase the maximum lux value
Or if you want to increase brightness, just do the opposite of the points above. You know you have good settings when it looks the same always (ie doesn't suddently appear dim or bright). I think my default value are pretty close. I spent some time fine tuning, but like anything, there is always room for improvement
I also did this calculator so I didn't have to run another app in the background to control auto brightness.. save on a few MB of ram anyway.
Click to expand...
Click to collapse
hello can u tell me more about the curve value? which range can be set? and whats the behave on mobile?

Share your KCAL Colour Settings

Hi All!
Kindly share your KCAL settings here
Like this:
Kernel - my kernel - IceMan ( not for public )
OS - LineageOS build myself
My settings:
Red 216
Green 222
Blue 256
Saturation 65
Value 129
Contrast 129
Hue 0
Thank you!

250
240
255
40
132 (140)
132 (140)
10

Red 235
Green 248
Blue 256
Saturation 52
Value 132
Contrast 138
Hue 0
Tianma Panel

Excellent idea to open a thread like this. If anyone has a Kcal profile which makes blacks blacker, whites whiter and colors more vivid, please share your profile. :3. I'm on an LOS based rom by the way.

What app are you using to control the KCal?

techlogik said:
What app are you using to control the KCal?
Click to expand...
Click to collapse
Elementalx app its fine, but also required custom kernel for kcal.

240,240,256,50,130,132,0
Whiter screens
Sent from my HTC 10 using XDA-Developers Legacy app

Hmm, I think I found a profile which I like. I used the DarkDroid profile as the base and changed one value.I only changed saturation.
Red: 250
Blue: 250
Green: 256
Saturation: Default is 45 but I changed it to 65
Value: 120
Contrast: 145
Hue: 0

As different type of panel is available and implemented on our beloved HTC10, shouldn't we share what type of panel too ? it's easily available using DevCheck app
I don't think applying settings from a panel to a different brand is really productive.
It's like calibrating a Sony TV and applying the resulted calibrating profile to a Samsung one, just because models share the same IPS panel ? Hmmmm no !
Btw this topic is an excellent idea !)

Fre$h said:
As different type of panel is available and implemented on our beloved HTC10, shouldn't we share what type of panel too ? it's easily available using DevCheck app
I don't think applying settings from a panel to a different brand is really productive.
It's like calibrating a Sony TV and applying the resulted calibrating profile to a Samsung one, just because models share the same IPS panel ? Hmmmm no !
Btw this topic is an excellent idea !)
Click to expand...
Click to collapse
You are right; I have updated my post

Seriosuly calibrated color settings

Hello there, I'm a "true colors" maniac, I have all my pc monitors calibrated with icc profiles and everytime I look at this screen it feels wrong, though is a very good screen
now...I once found some preloaded profiles with elementalx kernel and app, now I wiped and reflashed and they're gone (wat)
anyway, I still haven't found a good one
do you have an objectively good color setting? can share it?
or, if you have any suggestion to make a serious calibration (images, tools and stuff) share it!
thank you for your attention and support!

throcker said:
Hello there, I'm a "true colors" maniac, I have all my pc monitors calibrated with icc profiles and everytime I look at this screen it feels wrong, though is a very good screen
now...I once found some preloaded profiles with elementalx kernel and app, now I wiped and reflashed and they're gone (wat)
anyway, I still haven't found a good one
do you have an objectively good color setting? can share it?
or, if you have any suggestion to make a serious calibration (images, tools and stuff) share it!
thank you for your attention and support!
Click to expand...
Click to collapse
Red: 250
Green: 252
Blue: 256
Saturation: 34
Value: 129
Contrast: 135
Hue: 0
My settings so far.

RogerF81 said:
Red: 250
Green: 252
Blue: 256
Saturation: 34
Value: 129
Contrast: 135
Hue: 0
My settings so far.
Click to expand...
Click to collapse
Hey these settings look pretty good on my phone.
In Main Settings, are you sRGB-> Middle?

im_high_tech said:
Hey these settings look pretty good on my phone.
In Main Settings, are you sRGB-> Middle?
Click to expand...
Click to collapse
Yes, but sometimes, I set it twoe steps towards cooler.

RogerF81 said:
Yes, but sometimes, I set it twoe steps towards cooler.
Click to expand...
Click to collapse
aaaah srgb is pretty good on balance, but damn washed out.....

Brightness

How to reduce brightness manually than normal by editing some registry or other hacks.
Lumia 535DS with latest W10.
Thanks in advance

https://forum.xda-developers.com/lumia-1020/general/manual-brightness-windows-10-t3747819?nocache=1

jaspi72 said:
https://forum.xda-developers.com/lumia-1020/general/manual-brightness-windows-10-t3747819?nocache=1
Click to expand...
Click to collapse
Thanks for ur reply.
No changes here
Missing ABSAutoMaxBrightness and ABSMonitorControl on first step.
On 2nd step,all option with pct is there.ex LowBrightnessvalue and LowBrightnessapct is present.i edited value option.
Else they are present and changed according to your procedure.

just add new in the ABSManualBrightness and set the multistring 1 2 3
and simply change only low brightness value and pct of low brightness to 1 or 5 for lowest brightness
its working n i m getting lowest brightness n its saves allot of batterry

aditya21276 said:
just add new in the ABSManualBrightness and set the multistring 1 2 3
and simply change only low brightness value and pct of low brightness to 1 or 5 for lowest brightness
its working n i m getting lowest brightness n its saves allot of batterry
Click to expand...
Click to collapse
No change.maybe iam enabled the brightness slider through interop tool tweaks and gets little low brightness than original when the slider set to 0℅.i wanted to lower the brightness.Hope u guys will help

DONT USE BRIGHTNESS SLIDER!
These settings i have now 1020 and brightness settings works great.
Numbers in () is original and without is modified.
HKLM\Software\Microsoft\AutoBrightness
- ABSAutoMaxBrightness (3) 6
- ABSManualBrightness (3) 1 3 6 (the variable here is multistring)
- ABSMonitorControl (1) 1
https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx
HKLM\Software\Microsoft\Shell\OEM\Brightness
-LowBrightness (1) 1
-MediumBrightness (2) 3
-Hightbrightness (3) 6
https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx
HKLM\Software\OEM\AutoBrightness
- ABSPercentIntensityMapping 2 3 4 (the variable here is multistring)
- ABSRangeMilliLuxMapping 1 2 MAX (the variable here is multistring)
- DimBrightness 1
- Transitiondelay 0
Supel low light u get when change settings manually low and then autobrightness on.
Normal light, manually normal and then autobrigtness on.

jaspi72 said:
DONT USE BRIGHTNESS SLIDER!
These settings i have now 1020 and brightness settings works great.
Numbers in () is original and without is modified.
HKLM\Software\Microsoft\AutoBrightness
- ABSAutoMaxBrightness (3) 6
- ABSManualBrightness (3) 1 3 6 (the variable here is multistring)
- ABSMonitorControl (1) 1
https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx
HKLM\Software\Microsoft\Shell\OEM\Brightness
-LowBrightness (1) 1
-MediumBrightness (2) 3
-Hightbrightness (3) 6
https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx
HKLM\Software\OEM\AutoBrightness
- ABSPercentIntensityMapping 2 3 4 (the variable here is multistring)
- ABSRangeMilliLuxMapping 1 2 MAX (the variable here is multistring)
- DimBrightness 1
- Transitiondelay 0
Supel low light u get when change settings manually low and then autobrightness on.
Normal light, manually normal and then autobrigtness on.
Click to expand...
Click to collapse
No change
Can u please upload the screenshot.i edited the same as your comment but no change.

What phone u have?
Ah 535ds..
If changes dont work, then this dont work on 535
And did u change slider off?

jaspi72 said:
What phone u have?
Ah 535ds..
If changes dont work, then this dont work on 535
And did u change slider off?
Click to expand...
Click to collapse
Yes.slider disabled and changed.Not working

Brightness reg edit worked. But..
But.. i think.. it possible to lower the walues for low brightness? not the value 1 but like 0.5 or something?