FORUMS
Remove All Ads from XDA

[MOD][JB][I8160+P] 624 MB accessible RAM on ANY Jelly Bean ROM

439 posts
Thanks Meter: 296
 
By Szaby59, Senior Member on 2nd August 2013, 03:03 PM
Post Reply Email Thread
WARNING!


I AM NOT RESPONSIBLE IF YOU BRICK YOUR PHONE!


Tested with MC8/MF1/MG2 builds on a European I8160.

BE AWARE! Flashing bootloader (only V2) can be dangerous and has higher chance to brick your phone, especially if you flash the incorrect version!



CHANGES:

FOR I8160:

- included new Jelly Bean Secondary Bootloader (SBL) now MC8 (and possible other) builds are supported

FOR I8160P:

- included new Jelly Bean Secondary Bootloader (SBL), and param.lfs from P ROM.


INFO:

This small mod will give you 624 MB accessible RAM on (almost) any stock JB firmware, without installing any other ROM by flashing a new Secondary Bootloader and PARAM.
These files are from the Russian XXMG2 ROM and XXME1 (P) ROM - flashing them does not increase the flash counter.


FLASHING INSTRUCTIONS:



!!! DO NOT FLASH V2 FIRST! ALWAYS TRY V1 IF NOT WORKS THEN TRY V2 !!!
!!! FOR P VERSION DOWNLOAD "_P_" FILES !!!


I8160: So far only MC8 requires V2, other builds (MF1/MF2/MG2) should work with V1!
I8160P: I don't have it, try V1 first then V2.
I8160L/Chinese/Hong Kong variants: don't try V2, only V1 (not the _P_ version) !


IF YOU ALREADY HAVE JB (and with 482 MB or 550 MB RAM):

1, Flash your stock firmware with Odin, or Update with Kies - assuming you already did.
2, Download the attached 624MEM_V1 or V2.rar.
3, Restart your phone in download mode, start Odin and select 624MEM_VX.tar.md5 as PDA.
4, Flash it, after restart your phone should have 624 MB RAM accessible.
- If the phone boots to recovery just select "reboot system now" and press the power button.






FLASHING STOCK ROM WITH THIS MOD:

1, Download the attached 624MEM_V1 or V2.rar, then extract somewhere.
- Select the stock ROM as PDA and 624MEM_VX.tar.md5 as CSC.
- DO NOT TICK REPARTITION
2, Flash it.
3, After restart your phone should have 624 MB RAM accessible.




CWM FLASHABLE ZIP (ONLY FROM V1):

- I decided to make CWM version only from V1 because V2 replaces the bootloader, and that is much safer to do with Odin.
- requires rooted phone (JB) with busybox and CWM recovery

1, Copy 624MEM_CWM.zip to your external SD card.
2, Flash with CWM as update.zip.
3, After restart you should have 624 MB RAM accessible.


To remove this mod, follow the "HOW TO COME BACK TO GB" guide and after that reflash your stock JB firmware without this mod.
Attached Thumbnails
Click image for larger version

Name:	xeh_jb_624.jpg
Views:	2980
Size:	44.0 KB
ID:	2159964   Click image for larger version

Name:	jb_624.jpg
Views:	2754
Size:	41.1 KB
ID:	2159965  
Attached Files
File Type: rar 624MEM_V1.rar - [Click for QR Code] (380.2 KB, 32920 views)
File Type: rar 624MEM_V2.rar - [Click for QR Code] (616.1 KB, 9157 views)
File Type: zip 624MEM_V1_CWM.zip - [Click for QR Code] (545.9 KB, 7080 views)
File Type: zip 624MEM_P_V1_CWM.zip - [Click for QR Code] (546.0 KB, 1837 views)
File Type: rar 624MEM_P_V1.rar - [Click for QR Code] (379.9 KB, 2538 views)
File Type: rar 624MEM_P_V2.rar - [Click for QR Code] (617.2 KB, 1689 views)
The Following 54 Users Say Thank You to Szaby59 For This Useful Post: [ View ] Gift Szaby59 Ad-Free
 
 
2nd August 2013, 03:10 PM |#2  
Member
Thanks Meter: 10
 
More
First I would like to thank you for this mod.

Next, is it possible to get a little more info about this mod?

What I would like to know is how exactly does this mod change the value of RAM to 624MB.

I am asking this question because I would think that Samsung most probably had a reason to release firmwares with reduced value or RAM and there have also
been some reports that versions with less RAM are more stable (but I guess this also depends on firmware version).
2nd August 2013, 03:13 PM |#3  
Szaby59's Avatar
OP Senior Member
Thanks Meter: 296
 
More
It will replace kernel2.bin.md5 and param.lfs.md5.
Probably param.lfs.md5 causes the RAM change, but I also included kernel2.bin.md5 because these 2 files are present in every rom with 624 MB RAM.
Both files are from Russian SER (XXMG2) firmware without any modification, so it will not increase the flash counter.
The Following 2 Users Say Thank You to Szaby59 For This Useful Post: [ View ] Gift Szaby59 Ad-Free
2nd August 2013, 03:27 PM |#4  
shine911's Avatar
Senior Member
Flag Soc Trang City
Thanks Meter: 715
 
More
nice work bro
2nd August 2013, 03:32 PM |#5  
Account currently disabled
Thanks Meter: 105
 
More
This is NICE...but where's download?
Am i blind?
2nd August 2013, 04:48 PM |#6  
Szaby59's Avatar
OP Senior Member
Thanks Meter: 296
 
More
Sorry, I forgot that .md5 files are not supported by the site.
Thread updated, 624MEM.tar.md5 attached in rar format.

Edit: Update.zip version for CWM added.
The Following User Says Thank You to Szaby59 For This Useful Post: [ View ] Gift Szaby59 Ad-Free
2nd August 2013, 10:44 PM |#7  
Member
Flag Malang
Thanks Meter: 5
 
More
Will it work on Italian Job ROM?
2nd August 2013, 11:59 PM |#8  
xrgman's Avatar
Junior Member
Thanks Meter: 4
 
More
Italian job is based on stock so yes

Sent from my GT-I8160 using xda premium
6th August 2013, 07:32 AM |#9  
swalihcmr's Avatar
Member
Thanks Meter: 6
 
More
Is this methode safe to do..??

I am using the custom ROM 'The Blue Job' by Rox based on 'BTU MC8' ...My current RAM is 550mb...

will there be any noticeable improvement in performance or smoothness if I change to 624mb..??
7th August 2013, 05:16 PM |#10  
Szaby59's Avatar
OP Senior Member
Thanks Meter: 296
 
More
If you take your phone to a Samsung repair center and they update it with their "full" firmware you'll have 624 MB RAM, there is a problem with some Kies firmwares, that's why many phones after official update will have 482 or 550 MB.
This method adds the "missing" files so you'll have 624 MB RAM without flashing another rom.
And yes more RAM will give some performance improvement.
The Following 3 Users Say Thank You to Szaby59 For This Useful Post: [ View ] Gift Szaby59 Ad-Free
8th August 2013, 09:23 AM |#11  
unicornx's Avatar
Member
Thanks Meter: 9
 
More
woked on MG2 Poland...Awesome..Thanks+
The Following User Says Thank You to unicornx For This Useful Post: [ View ] Gift unicornx Ad-Free
Post Reply Subscribe to Thread

Guest Quick Reply (no urls or BBcode)
Message:
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes