[UPDATE FOR JB.15][Custom Build Prop] Increase Performance & Battery Life of PRIME - Asus Eee Pad Transformer Prime

[UPDATE FOR JB.15][Custom Build Prop] Increase Performance & Battery Life of PRIME
MAJOR UPDATE: U.S. & WW. MODDED BUILD.PROP FOR NEW. 15 JELLYBEAN RELEASE ADDED. here are edited build.prop files for both the US & WW 10.4.2.15 Jelly Bean. Tweaks are listed as to what they are within the build.prop and to install just copy over using Root Explorer or similar app and then ensure permissions are set correctly. MUCH LOVE AND THANKX GO TO MR.WOOKIE FOR THIS and his constant contributions to making the prime a better device to own. I know I haven't been around as much as I don't own a prime anymore. But I can continue to update this thread as needed. Its very important that if issues arise, PLEASE TRY TO HELP ONE ANOTHER OUT. I can try to help out when I can. As always, make sure to set permissions correctly. JB build.prop Modding should be no different than previous versions. so most of the instructions in this OP/thread still apply. please post up how this mods are working for you on new JB firmware. if you notice any particular mod or line is causing problems with JB, please let us know. so it can be modified again. HAVE FUN...PRIME WILL ALWAYS BE HOME FOR ME
With the permission of the Original Developer, Seanzscreams, we bring a modified version of his mod for the 300 that now works on the Prime also. This is a custom modified build prop, that Brings Overall Performance & Battery life Improvements to the Transformer Prime. This will make your device feel more snappy and responsive overall. It should improve battery life. Other performance tweaks also will improve everyday use of Prime.Your device has to be on the latest U.S. .21 or U.S..28 firmware and rooted. If you on a ww version or other, you may need to tweak the build.prop to reflect your region version. Take a look inside the modded build.prop & see before you try it out. If you know how to edit it, give it a shot. just make sure to back up your original build.prop. If unsure, hit the link & ask the developer. It is possible to not be rooted and push this through ADB but being rooted makes it ALOT easier.
UPDATE: U.S. & WW .28 MODDED BUILD.PROP ADDED. EVERYTHING EXCEPT power collapse & wifi scanning added. some users reported issues that could be linked. same instructions on implementing this. MAKE SURE TO MAKE BACKUP OF YOUR ORIGINAL FILE. MIGHT BE BEST TO SEND IT TO SOMEPLACE OUTSIDE INTERNAL MEMORY OF PRIME. JUST TO BE ON THE SAFE SIDE.
*Users on region versions other than the US .21 or U.S. .28, read the tips at the end of this post before you attempt this. Putting this US version of build.prop in your device can cause issues if not properly edited to reflect your region.
*If you running Androwoki rom, no need to apply this tweak. the developer already added these tweaks to his ROM/build.prop.
-UPDATE: fellow member Mekrel made a .21 WW version of this for those who wish to try out. or you go the other route like mentioned in this post. the WW version is attached to this thread also.
Thanks to Hairdex for making a making a version for people running Team EOS Cornerstone build #9. only those on build #9 can use it.
-added De .21 version also
PLEASE READ IMPORTANT INFO & TIPS AT THE BOTTOM OF THIS POST IN CASE ANY POSSIBLE ISSUES ARISE.
Method described below is for rooted users as I don't really know how to do it the stock(not rooted) method through ADB. You can go to original thread and ask developer on how to push it through ADB method
Quote from developer, Seanzscreams:
" This is a modified build.prop to include all the latest ics tweaks
(from a build.prop standpoint)
forced 60fps
faster wifi connect and suplicant scan set at 100 (battery saver as well)
added deep sleep mode
added screen dithering
removed checkin back to base
kernel tweaked
dalvik mins and max set higher than stock
increased over-all fling velocity min and max now set
min at 8000 and max at 12000
a few nvidia specific graphics tweaks as well
. power collapse disable enabled
-and just a few i dont feel like explaining google is your friend"
Link to his original thread: http://forum.xda-developers.com/showthread.php?t=1641219
DISCLAIMER: I nor the original developer take responsibility if you don't follow instructions or researched first. USE AT YOUR OWN RISK. It should be a fast n simple mod. Works great on my prime. If you run into issues, we will help you the best we can. Please read the important info & tips at the bottom of this post. It could eliminate possible issues from arising.
USE ROOT EXPLORER:
this modded build.prop, which is attached to this thread, goes in /system. Make sure to back up your original build prop or add .bak to the end of it(.bak). I sent a copy of my original file to my drop box. just an extra safety precaution... You will need to change root explorer to mount as RW. after you back up the original file, paste the new modded build prop into /system. then long click on it and press permissions. the permissions need to be exactly like the original file. which is rw-r--r-- after you properly set the permissions, change root explorer back to Read only. then power down and reboot, then profit. You can reboot twice to make sure everything sticks, if you want. If you don't notice anything initially, let it cache(kind of like letting a car warm up before you drive off) just like with roms. just start using tab so it can cache.
CLARIFICATION ON SETTING PERMISSIONS IF UNSURE. your permissions for this mod build.prop should look like this: rw-r--r--
...........Read. Write
Owner. X .......... X
Group. X
Others. X
I would suggest before even applying this, open the mod build prop up in root explorer. then just take a look at it all. Then cross reference the new tweak lines added with the links I will provide now. These links show all the build prop tweaks and what they do. This is to get a better understanding of what will be improved on your device Performance & Battery Savings wise. It won't hurt for you to become more familiar with what the different lines do and it might eliminate some questions concerning what each does.
http://forum.xda-developers.com/showthread.php?t=1639104
http://forum.xda-developers.com/showthread.php?t=1510652
EXAMPLES OF SOME OF THE TWEAKS SEEN IN THIS MODDED BUILD.PROP & WHAT THEY DO OR AFFECT: Thankx to TheFrankenstain & H M Judge threads for Reference
- Allows the tablet to sleep better: This setting puts your tablet into a deeper sleep when on standby
ro.ril.disable.power.collapse=1
- Allows your wifi to scan less frequently, saving more battery
wifi.supplicant_scan_interval=100
- Increase overall touch responsiveness
debug.performance.tuning=1
video.accelerate.hw=1
-Increases Scrolling responsiveness
windowsmgr.max_events_per_sec=300
- Faster Scrolling
ro.max.fling_velocity=12000
ro.min.fling_velocity=8000
-Increases quality of photo/Increases the memory cap when decoding JPEGs
ro.media.dec.jpeg.memcap=8000000
-Raises quality of JPEG images: makes JPEG Higher Quality
ro.media.enc.jpeg.quality=100
-Enable Surface dithering:Improves image quality
persist.sys.use_dithering=1
-System tweaks:
Change the Dalvik VM heap size
-dalvik.vm.heapsize=256m
-dalvik.vm.startheapsize = 8м
-makes apps load faster and frees more ram.
dalvik.vm.dexopt-flags=m=y
-Use Jit (Dalvik just-in-time compiler): faster better caching system
dalvik.vm.execution-mode=int:jit
-Disable error checking (Should speed things up a bit)
ro.kernel.android.checkjni=0
ro.kernel.checkjni=0
this has been running great for me so far. battery life seems improved and the responsiveness of the touch screen is unbelievable. it scrolls so fast n fluid it crazy. this is with the regular UI & within browsers. It also increases quality of your JPEG pictures. Im really impressed with it so far.
Do note though, once OTA update comes, it will knock all this out and a new custom build prop will have to be made. this is even if you accept the new OTA.
I will keep this thread updated to stay current with the developers original thread. As new updates come out, he will be modifying the newer build props within the update. So I will add those here as they come.
Make sure to click on the developer, Seanzscreams, original thread(http://forum.xda-developers.com/showthread.php?t=1641219) and give him thanks. You can leave feedback in this thread and original thread, if you wish. Feedback is encouraged as it will lead to better future results on this mod.
THANKS TO: Seanzscreams for Modding my Prime build prop. Now we have this MOD available to all prime owners on latest .21 firmware and rooted.
Attached to this post is a zip file with the custom build prop inside of it. The U.S. and WW version
*IMPORTANT:
If you come across a difficulty, you can ask in this thread or even better would be to ask in the developer original thread. He would know more on possible issues that may arise.
If you run into issues or caught in a bootloop or something here is how to use adb and push back your original build.prop file: Thanks to Mekrel
in regards to being for locked/unlocked users, I posted two sets of commands. Technically three scenarios exist:
Being locked
If you're locked, you're not going to have any third party kernel installed and therefore WILL have a secure kernel and therefore not able to push files to /system. That's why you need the command that involves pushing to the /sdcard and then using su via shell to copy from the /sdcard and then to /system.
Unlocked but with a kernel installed that's still secure
As above
Unlocked but with a kernel installed that's insecure
You can push directly to /system, so you don't have to push to the /sdcard first
If you're unlocked you're going to be running a secure kernel which means you're not going to be able to run adb as root, so even with root and the /system partition mount as r/w; you're not going to be able to push to system:
Code:
adb shell
su
mount -o remount,rw -t ext4 /dev/block/mmcblk0p1 /system
exit
exit
adb push build.prop /sdcard/
adb shell
su
cp /sdcard/build.prop /system
chmod 644 /system/build.prop
rm /sdcard/build.prop
exit
exit
Unlocked and with an insecure kernel:
Code:
adb shell
su
mount -o remount,rw -t ext4 /dev/block/mmcblk0p1 /system
exit
exit
adb push build.prop /system
adb shell
su
chmod 644 /system/build.prop
exit
exit
In regards to remounting to read only once finished, you don't have to as you can simply reboot and the commands executed in ramdisk will remount every partition with the relevant flags. Or you could:
Code:
adb shell
su
mount -o remount,ro -t ext4 /dev/block/mmcblk0p1 /system
exit
exit
you should be good to go after this.
*TIPS for users that are not on US .21 but instead on a WW or other version: thnkx to Buxtahuda & Gage_Hero
- instead of editing this build.prop with your information, edit your build.prop with any missing lines from this one. That's going to cut down on error a lot, and even if you get the right characters and spacing, the build.prop can be finnicky as all hell.
- IF you edit the build.prop use the right tool which would be notepad++ (download) not the standard windows note pad. if you use the standard windows notepad you could end up with format and character issues
*CAUTION:
We had a user who was unlocked, boot to a black screen. He got his prime back running by doing a restore from recovery. For unlocked users who want to try this, make sure to do a full backup, including the original build.prop file. Unlock users could even edit their own build.prop & add the lines one by one until it breaks. You can download notepad + yes it is +(plus). then you can edit the build prop (properly with out screwing up the format) on the pc and move it to the tablet. I'm not sure if being unlocked conflicts with this mod. just make sure you on latest .21 or .28 firmware and rooted. Then follow instructions carefully. you can even click on the original developer link for assurance on how to install if unsure how to install or if you have any possible conflicting issues. It would be best to ask developer if this is safe for unlocked users also. Unlocked users should proceed with caution and make sure you will be OK using this.
update:Developer said being unlocked shouldn't matter. I'm still waiting to hear back on what if people are on a different version like WW or something.
You can feel free to Hit my Thanks also, if you want. For putting this guide together on my Prime solely. The Prime is my PC Make sure to give feedback here & to OG developer, Seanzscreamz and his OG thread http://forum.xda-developers.com/showthread.php?t=1641219 . He made this all work for our Primes when he didn't have to. Much thanks to him & other members who contributed critical info, tips, & feedback.
Thanks to Texstar & Andromorphone for editing U.S. .28 buildprop.

---

That is the one I am looking for so long. Thanks for sharing.
Sent from my HTC Desire HD using xda premium

---

Could you please explain how to do this without root?

---

okay okay.. I will try it and report back

---

1SiK1500 said:
Could you please explain how to do this without root?
Click to expand...
Click to collapse
you actually dont need root
but this is way easier if you do
you could adb push /system/build.prop
or you could just paste it into root explorer replacing your existing
(back up existing or rename it to build.prop.bak just for safe keeping )
then reboot
or
when it reboots and adb comes alive you may be able to push it to /system with: adb push build.prop /system
not really much more was explained. you can click on his original thread link to get more details or ask him about it. most seem to be doing this the rooted method. I haven't seen anyone confirm doing this adb way yet.

---

I get an error..
"There was not enough free disk space to complete the paste operation" when I tried to paste this into /system with the original .bak there
I had to remove the original file to make room
Also, I think you better expand on what -RW, -R, -R means for people - like exactly what boxes to check and uncheck

---

I forgot to add:
If you don't notice anything initially, let it cache(kind of like letting a car warm up before you drive off) just like with roms. just start using tab so it can cache. it'll take to the changes.

---

Lock-N-Load said:
I get an error..
"There was not enough free disk space to complete the paste operation" when I tried to paste this into /system with the original .bak there
I had to remove the original file to make room
Click to expand...
Click to collapse
that's strange. I still have my original file in there renamed. I never got that error. Do you still have all those modded wifi files in there also?
edit: I saw the other part you added, I gotcha

---

demandarin said:
that's strange. I still have my original file in there renamed. I never got that error. Do you still have all those modded wifi files in there also?
edit: I saw the other part you added, I gotcha
Click to expand...
Click to collapse
Yes I do in /bin which is in /system - suppose i should delete those.
But this implies /system looks for and checks the size of that directory and pukes if it is beyond xx size - which is kind of interesting
Also, technically speaking, aren't permissions rw-r--r-- not -RW, -R, -R

---

Well, I did this and it just goes to a black screen and does nothing else.
How can I get back into the system and restore the old file?

---

Lock-N-Load said:
Yes I do in /bin which is in /system - suppose i should delete those.
But this implies /system looks for and checks the size of that directory and pukes if it is beyond xx size - which is kind of interesting
Also, technically speaking, aren't permissions rw-r--r-- not -RW, -R, -R
Click to expand...
Click to collapse
I edited OP to reflect that.
acdcking12345 said:
Well, I did this and it just goes to a black screen and does nothing else.
How can I get back into the system and restore the old file?
Click to expand...
Click to collapse
were you rooted and on .21 firmware?
did you put the modded file into /system & set its permissions to rw-r--r--? & rename the old file? so it won't be confused with 2 files try to be activated.

---

demandarin said:
I edited OP to reflect that.
were you rooted and on .21 firmware?
did you put the modded file into /system & set its permissions to rw-r--r--? & rename the old file? so it won't be confused with 2 files try to be activated.
Click to expand...
Click to collapse
I did exactly that..It was also unlocked...
Not sure how to go back to the old file..

---

Works great! Wow I can see a big speed difference! I can't wait to see how much longer the battery lasts.. Thanks man!
Sent from my Transformer Prime TF201 using XDA Premium App

---

jjdevega said:
Works great! Wow I can see a big speed difference! I can't wait to see how much longer the battery lasts.. Thanks man!
Sent from my Transformer Prime TF201 using XDA Premium App
Click to expand...
Click to collapse
you see changes that quick?? guess I will test mine more tonight.
my install went fine and reboot went fine.
I believe in this mod type as I did similar mods to my OG Droid

---

Lock-N-Load said:
you see changes that quick?? guess I will test mine more tonight.
my install went fine and reboot went fine.
I believe in this mod type as I did similar mods to my OG Droid
Click to expand...
Click to collapse
Surprisingly did. I didn't think I would see much of a difference that quick. As soon as it rebooted and right after the lock screen swiping was fast and opening closing apps are much quicker load times
Edit: overall loading speeds are improved quite a bit
Sent from my Transformer Prime TF201 using XDA Premium App

---

At work and don't have my Prime with me at the moment.
I will try tonight and report to you guys.
Good to hear positive feedback.

---

acdcking12345 said:
I did exactly that..It was also unlocked...
Not sure how to go back to the old file..
Click to expand...
Click to collapse
I'm wondering if being unlocked messes with things. Did you make a backup of your original file? if so. you can try to adb push it in there. you should go to original developer thread and post this up. As I'm not exactly sure on the adb method on getting the prime to use the original file.
ill make sure to add to the OP that being unlocked may conflict with this. As this is the only difference between yours n mines.
so you rebooting and it just went to a black screen? any Asus logo or anything? can you get into recovery and reflash your rom or restore a backup?
Anyone with insight into how he get back using the old file from state he is in now?

---

I don't see a wifi scan interval on either the original or this build prop. That was one I changed from 30 seconds to 100 on my phone to cut down on the power used by wifi to go out and ping and search for signals.
On my phone is it wifi.supplicant_scan_interval = 30
A bit surprised this does not exist as it can be a good battery saver
I also see some telephony stuff in this prop that seems of no value as we dont have phones

---

demandarin said:
I'm wondering if being unlocked messes with things. Did you make a backup of your original file? if so. you can try to adb push it in there. you should go to original developer thread and post this up. As I'm not exactly sure on the adb method on getting the prime to use the original file.
ill make sure to add to the OP that being unlocked may conflict with this. As this is the only difference between yours n mines.
so you rebooting and it just went to a black screen? any Asus logo or anything? can you get into recovery and reflash your rom or restore a backup?
Anyone with insight into how he get back using the old file from state he is in now?
Click to expand...
Click to collapse
I just went into recovery and restoring from a 3 old backup..

---

Lock-N-Load said:
I don't see a wifi scan interval on either the original or this build prop. That was one I changed from 30 seconds to 100 on my phone to cut down on the power used by wifi to go out and ping and search for signals.
On my phone is it wifi.supplicant_scan_interval = 30
A bit surprised this does not exist as it can be a good battery saver
I also see some telephony stuff in this prop that seems of no value as we dont have phones
Click to expand...
Click to collapse
it there is one actual in there. you have to look closely. its set to 100. I just looked in saw it. its like the 4th line above the additional build properties. I believe this scan is lower than in stock configuration.
I noticed the phone stuff also. he said once he updates, he has more tweaks he will add. ill update this thread with the changes also.