Post Reply

[STOPPED] [GT-S7500] Galaxy ACE Plus - Custom Kernel (Stable) + OC Kernel

OP blackburner

26th May 2012, 04:46 PM   |  #1  
OP Senior Member
Thanks Meter: 69
 
102 posts
Join Date:Joined: Jul 2010
Quote:

Disclaimer:
I don't take any responsibility if your phone explodes, your girl/boyfriend breaks up with you or any other stuff.
Do not flash on anything else than an GT-S7500! No L model or W model, else you get a shiny brick.
Don't forget your warranty will get void if you flash this trough odin. (Unless someone figures out a way to reset the custom binary counter)

So flash AT YOUR OWN RISK.

Based on official Samsung Sources. Governors copied from freexperia github. Other changes by me.

Quote:

Features:
- unsecured
- smartassV2
- SavagedZen (beware: in sleep mode cpu speed is capped at 480Mhz)
- noop sheduler by default
- minimium frequency set at 122Mhz
- enabled 19Mhz and 61Mhz frequencies (use setcpu or similar)

Tested with S7500XXLC2/S7500OXXLC1/S7500XXLC2. Flash with odin.

OC Build:
- Overclock frequencies seem to have the same performance but OC is indeed working, thanks to mb-14!
(Confirmed after many tests quadrant/setcpu/neocore cpu frequency is the same from minimal overclock to 1200Mhz)
- My phone as crashed 3 since I've overclocked it, so beware!
- Unless there is a better way of ocing, my newer builds will have oc disabled.

OC build v2 (31 May, 22h):
- Removed all overclock frequencies but 1200Mhz.

Bugs affecting all builds (even official ones):
- "Fuel gauge" might be bugged (maybe due to old/bugged samsung sources?) update:might be an rom bug instead.
- 3 pole headphones have noise in one channel and then the noise disappears (jack sensing bug?)

Sources Help & feedback are appreciated.

EDIT:
New kernel posted minimal changes again (samsung config updated from a new version LE1)

Quote:

If you don't want an yellow triangle at boot flash my custom rom and then flash the kernel using the terminal.
1-Extract the tar.md5 file
2-Copy the boot.img to the sdcard
3-Use the terminal (or adb) as root to cd to the sdcard folder
4-Then type this "dd if=boot.img of=/dev/block/mmcblk0p8"
If you want to flash a custom recovery it works too, type "dd if=recovery.img of=/dev/block/mmcblk0p12"

Then you can flash whatever rom you want as long you don't use odin to flash an custom kernel or recovery you can keep your warranty intact (if you never flashed any custom kernel/recovery that is).
Keep in mind that this doesn't clear the counter only makes the triangle go away.

Custom recovery based on cm9 (5.5.0.4) posted (appears to work fine but more testing is required). Bootloop fixed. If you get stuck in recovery (unknown boot mode) go to "advanced" and choose "reboot recovery" when it is finished rebooting into cwm again choose "reboot system now".

DEVELOPMENT IS STOPPED. I no longer have the ace plus.
Last edited by blackburner; 29th January 2014 at 08:53 PM.
The Following 11 Users Say Thank You to blackburner For This Useful Post: [ View ]
26th May 2012, 06:10 PM   |  #2  
Senior Member
Flag Bhadravathi
Thanks Meter: 162
 
594 posts
Join Date:Joined: Dec 2010
More
successfully flashed on my S7500DDLD1...only thing i noticed is after the flashing is complete phone doesnt boot normally but stays in download mode so i manually rebooted and i have ur kernel on my phone...take ur time and improvise it (startup scripts ,CM/MIUI support) , ALL THE BEST...
Attached Thumbnails
Click image for larger version

Name:	SC20120526-223746.png
Views:	1480
Size:	24.9 KB
ID:	1086215  
26th May 2012, 06:19 PM   |  #3  
balliboxer's Avatar
Senior Member
Flag New Delhi
Thanks Meter: 5,260
 
1,353 posts
Join Date:Joined: May 2012
Donate to Me
More
Wot's the benefit to flash custom kernel??.... Anyway gud step move ahead in making custom rom also for ace plus

Sent from my GT-S7500 using Tapatalk 2
26th May 2012, 06:21 PM   |  #4  
OP Senior Member
Thanks Meter: 69
 
102 posts
Join Date:Joined: Jul 2010
Quote:
Originally Posted by deadwood01

successfully flashed on my S7500DDLD1...only thing i noticed is after the flashing is complete phone doesnt boot normally but stays in download mode so i manually rebooted and i have ur kernel on my phone...take ur time and improvise it (startup scripts ,CM/MIUI support) , ALL THE BEST...

Odd mine rebooted and worked fine on first attempt. I've only messed with one script so far. I'm still thinking what I should add to the kernel.
I'm trying to build aosp but so far no luck.

Quote:
Originally Posted by balliboxer

Wot's the benefit to flash custom kernel??.... Anyway gud step move ahead in making custom rom also for ace plus

Sent from my GT-S7500 using Tapatalk 2

So far it's to have new governors and a new sheduler.
The Following 2 Users Say Thank You to blackburner For This Useful Post: [ View ]
26th May 2012, 06:27 PM   |  #5  
Senior Member
Flag Bhadravathi
Thanks Meter: 162
 
594 posts
Join Date:Joined: Dec 2010
More
BUG :
1 . When on savagedzen gov unlocking the phone from sleep is delayed/laggy also if u r listening to music and the lock the screen then the music starts lagging tried increasing the min freq still the same , may be something like a deep sleep or sod bug..
The Following User Says Thank You to deadwood01 For This Useful Post: [ View ]
26th May 2012, 06:33 PM   |  #6  
OP Senior Member
Thanks Meter: 69
 
102 posts
Join Date:Joined: Jul 2010
Quote:
Originally Posted by deadwood01

BUG :
1 . When on savagedzen gov unlocking the phone from sleep is delayed/laggy also if u r listening to music and the lock the screen then the music starts lagging tried increasing the min freq still the same , may be something like a deep sleep or sod bug..

I'm trying to reproduce the bug, but since my phone is still charging I can't seem to get the music lagging. What music app and music format are you using?
The Following User Says Thank You to blackburner For This Useful Post: [ View ]
26th May 2012, 06:37 PM   |  #7  
Senior Member
Flag Bhadravathi
Thanks Meter: 162
 
594 posts
Join Date:Joined: Dec 2010
More
Quote:
Originally Posted by blackburner

I'm trying to reproduce the bug, but since my phone is still charging I can't seem to get the music lagging. What music app and music format are you using?

Stock music player , mp3 format...
Even while charging the bug exists...
Last edited by deadwood01; 26th May 2012 at 06:40 PM.
26th May 2012, 06:46 PM   |  #8  
OP Senior Member
Thanks Meter: 69
 
102 posts
Join Date:Joined: Jul 2010
Quote:
Originally Posted by deadwood01

Stock music player , mp3 format...
Even while charging the bug exists...

Strange I can't seem to make it lag on savagedzen. The UI feels slower but music isn't lagging. Do you have any sound effect enabled?

Edit: I've got lag when using the EQ and waking the phone.

Edit 2: I've uploaded a hopefully fixed version, let's also hope that the changes that I made won't screw up the battery life.
Last edited by blackburner; 26th May 2012 at 07:09 PM.
27th May 2012, 03:59 AM   |  #9  
Senior Member
Flag Bhadravathi
Thanks Meter: 162
 
594 posts
Join Date:Joined: Dec 2010
More
flashed test kernel 3
the same bug exists wen used with EQ but the intensity of the bug is only 20% compared to the previous one also increasing the min freq to 480 completely nullifies the bug...also with EQ off the bug doesnt exist
will see how the battery life is... btw have u played with the drivers/bus to change the battery life...?
27th May 2012, 11:05 AM   |  #10  
OP Senior Member
Thanks Meter: 69
 
102 posts
Join Date:Joined: Jul 2010
I can't get any lag at all now (after v3). Can you give my all your parameters? EQ settings, mp3 bitrate, where is your music stored and if using an sd card what type of sd card are you using.

I've set the minimum at 19Mhz and on air plane mode and by morning I still had the same battery than yesterday (89%).

The only thing that I changed was the cpu frequency table to include 800 Mhz at the same voltage than 600 Mhz and so far it seems ok, but might not be true to all phones.

The Following User Says Thank You to blackburner For This Useful Post: [ View ]
Post Reply Subscribe to Thread

Tags
custom, galaxy ace plus, gt-s7500, kernel, root
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Top Threads in Galaxy Ace Plus S7500 Android Development by ThreadRank