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[MOD] From 240 to 200 density [GalaxyCore GT-I8260]

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By DarkThanos, Senior Member on 6th April 2014, 10:34 PM
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---- Introduction ---
Hi,
I am a fun of big screens and i think our Core has a big screen.
I also dont like 4 icons on one row... So lets begin .


---- Mod Preview ----
(Images here click button)

Launcher > Home Screen and Weather Widget



Launcher > Drawer


Launcher > Widget


Calculator > Normal




---- What is density? ----
Pixel density is how many pixels our screen have per inch. (Wikipedia)
Density's default value on Core is 240. We will change 240 to 200 (more pixels per inch, so smaller UI).

---- Mod for which device/version? ----
This mod was tested on a Galaxy Core:
Model number: GT-I8260
Android version: 4.1.2
Baseband version: I8260XXAMJ2
Build number: JZO54K.I8260XXAML3
(So ... on a stock rom)
(I have no idea if this work for GT-I8262 but i can cleary say that PhoneCall app have some hidden UI on GT-I8260)

Now its the time to say that u can't possible brick your phone with such mod... so gesh what... you are responsible for what ever you do to your phone not Me, not Jack Sparrow and hell not Spider-Man.

---- Preparation ----
To do this mod we need a Rooted phone. If you dont have your phone rooted, go download it from here (its an app) run it and select a root method (2nd worked for me), this will root your phone.
Now its time for backups just in case we missclick or we try to do the mod on an other device/version.
So the first thing we need is an explorer with access on the filesystem of the phone (I used Root Explorer, do your magic and download it).
  1. Open Root Explorer (or any other explorer with root access you want) go to "/system/" and backup (copy) on your sdcard the "build.prop" file ("/system/build.prop"). This is not mandatory but just in case.
  2. Now go in "app" folder ("/system/app/") and backup (copy) on your sdcard the files "AccuweatherWidget.apk", "SamsungCamera.apk", "SecCalculator.apk", "SecLauncher2.apk". (You can skip this if you dont want the apps mods to fit the new density, or only back up "SecLauncher2.apk" if you just want a launcher fix.)
You better make a folder in your sdcard and put them all together in there.

---- Mod Time ----
Density Change:
With your Root Explorer (or any other explorer with root access you want) go to "/system/" and open "build.prop" on an text editor, now edit density from 240 to 200. (To edit the "build.prop" file you will have to "Mount R/W" this folder, Root Explorer will ask you to do it as soon as you click to edit the file) (Here a nice guide about changing build.prop)
Code:
debug.composition.8x25.type=dyn
dalvik.vm.heapsize=24m
persist.gralloc.cp.level3=1
ro.sf.lcd_density=240                <----- We need to edit this line (line 62)

# System property ril adb log on
So it will look like this after edit
Code:
debug.composition.8x25.type=dyn
dalvik.vm.heapsize=24m
persist.gralloc.cp.level3=1
ro.sf.lcd_density=200                <----- We changed 240 to 200

# System property ril adb log on
Now density is changed and it will be applied on our next reboot. You may not reboot now, but this is not mandatory.

Launcher Mod/Fix for 200 density:
With 200 density default launcher looks bad... So we need to add a one column and 2 rows. Will be gooood .

So we download the modified "SecLauncher2.apk" from the end of this post and put it on your phone's sdcard, dont rename the file (watch out not to replace your backup apk if you haven't moved it in a folder).
We now need to replace the "/system/app/SecLauncher2.apk" with the one you just put in your sdcard.
(I suggest you first to download a second launcher in case if something go wrong, you can still open Root Explorer and fix it. Nova launcher is free on GooglePlay, just download it before you proceed.)
So open Root Explorer and go to your sdcard ("/storage/extSdCard/" or "/storage/sdcard0/" depending on which you put it). Find "SecLauncher2.apk" and copy it (hold down and chose copy on the menu). Now go to "/system/app/", "Mount R/W" this folder and paste the file (click "Copy Here", its down left).
Now for the moment your Stock Launcher should not work untill the next reboot. You can ether reboot or continue with the rest moded apk provided in this mod/guide.

Rest Apps Mod/Fix for 200 density:
(Camera, Calculator, Weather Widget, PhoneCall, Email)

You will have to do the same thing for the other app provided in this mod/guide.
I am not going to rewrite the process as i have fully completed only the Launcher's mod.
The other apps are all usable but need style fixes so i need to work on them.

App mod info / stage:
[Download][OK] Launcher : Modded, based on my needs
[Download][SEMI-OK] Camera : Cant find how to move icons in better positions.
[Download][SEMI-OK] Calculator : Scientific mode not converted-modded.
[Download][SEMI-OK] Weather Widget : Need to fix Height/Width ratio.
[Download][NO] PhoneCall : Not yet started modding, only number pad need fix.
[Download][NO] Email : Not yet started, mail view width need to grow.

(Sorry for the noob friendly info)
SeeYa!
Attached Files
File Type: zip SecApps 200dpi.zip - [Click for QR Code] (7.55 MB, 257 views)
Last edited by DarkThanos; 16th May 2014 at 03:43 PM.
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7th April 2014, 01:30 PM |#2  
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Need to be fixed :
PhoneCall.app
Email.app
Memo.app


With a 200 density S3 Group play app loads without crashing.
Last edited by DarkThanos; 7th April 2014 at 01:33 PM.
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7th April 2014, 02:49 PM |#3  
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Quote:
Originally Posted by DarkThanos

Need to be fixed :
PhoneCall.app
Email.app
Memo.app


With a 200 density S3 Group play app loads without crashing.

After changing the density and replacing the laucher apk with the new one, the phone failed to boot. Tried cleaning cache, dalvik cache, but when booting, it shows "Finishing BOOT".
7th April 2014, 03:42 PM |#4  
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Quote:
Originally Posted by MirXas

After changing the density and replacing the laucher apk with the new one, the phone failed to boot. Tried cleaning cache, dalvik cache, but when booting, it shows "Finishing BOOT".

Which phone you have and which firmware version?

Changing the launcher apk cant mesh up your boot, worst case the launcher crash afther load.
If the phone diplay anything about update and finishing updating its ok, u just wait.
Try load from recovery and restore your build.prop and launcher's apk with adb.
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7th April 2014, 04:01 PM |#5  
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I already reinstalled stock ROM along with all of my apps. I8260 with stock ROM. I'll do a nandroid backup and try again. I'll tell you how it went.

Sent from my GT-I8260 using xda app-developers app
8th April 2014, 04:14 PM |#6  
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Cool, Its working for GT-i8262?
and..
why this mod not posted on themes and apps
8th April 2014, 05:37 PM |#7  
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I dont know if it work on GT-I8262, I dont even know if it work with all GT-I8260.
Its not a theme its a dpi change. And I think that if we want to port S4 - S5 on our phone we should eventually all change our dpi.
17th April 2014, 04:27 PM |#8  
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Works like charm..thnx

Sent from my GT-I8262 using XDA Premium 4 mobile app
3rd July 2014, 02:35 PM |#9  
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please Update This.. I really Like this,,
9th July 2014, 06:41 AM |#10  
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Angry
Thanks for this. It looks good to have a big screen.

Moreover, I don't know what happened but my RAM usage has dropped from 450 to 267-280 MB after changing pixel density instead of having lot of apps installed.

Here is SecContacts.apk that i moded for 200 DPI. ---> Click here

Thanks again. For the rest apps i don't care because I don't have calculator, email and stock camera
13th July 2014, 03:30 PM |#11  
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It's workning changing dpi on 8262 dual but this launcher is not, if some1 can give launcher i would be greatful

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