Gt i9100 JB stock Kernel topic

Hi guys ! So , I have a SGS2 with JB stock rom ( XWLST - Indian rom ) rooted by flashing Speedmod kernel. I want to go back to the stock kernel . I searched in google but got no luck , so should I unroot the phone in superSu to get or reflash the rom ( tried but nothing happened ) or is there any link to download the stock kernel and flash it using odin ? Any ways for doing this thing ? Thanks :).

[Q&A] [FIX] CM12 I9100 Camera Video Recording Fix topic

Q&A for [FIX] CM12 I9100 Camera Video Recording Fix

Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.

Before posting, please use the forum search and read through the discussion thread for [FIX] CM12 I9100 Camera Video Recording Fix. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.

Thanks for understanding and for helping to keep XDA neat and tidy! :)

[NOOB FRIENDLY] Build.Prop Tweaks [Especially for i9100] topic

DO YOU SICK OF PLACEBO OR SLOWDOWN TWEAKS?

Then this tweaks are just for you and especially for your i9100

You can use this tweaks on other devices too but I don't know if they speedup so I guarantie only for i9100

I tested this tweaks on CM11 03.01.2015 nightly. I recomend that do NOT use this tweaks on stock roms. Because I changed few lines on sammy rom build.prop. Stay tuned I will publish for sammy later.

NOOBS HERE:
1. Download build.prop editor on google play
2. Click on three dots and tap edit
3. Copy and paste my tweaks
4. Be careful! First tweak says edit existing line!

Code:

---

#Nhmanas (FOR AOSP)

#Edit existing line (Most recomended tweak)
dalvik.vm.dexopt-flags=o=y,m=y

#Data Speed and media streaming (I deleted wifi buffer size. I get some issues rarely)
media.stagefright.enable-player=true
media.stagefright.enable-meta=true
media.stagefright.enable-scan=false
media.stagefright.enable-http=true
net.tcp.buffersize.default=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.evdo_b=4096,87380,256960,4096,16384,256960
ro.ril.hep=1
ro.ril.enable.dtm=1
ro.ril.hsdpa.category=10
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hsupa.category=5

#Power Saving (and lights up your phone)
ro.ril.disable.power.collapse=0
pm.sleep_mode=1
ro.config.nocheckin=1
ro.ril.fast.dormancy.rule=0
ro.com.google.networklocation=0
logcat.live=disable
#Do not use 90 or up values
windowsmgr.max_events_per_sec=90
ro.kernel.android.checkjni=0
ro.com.google.locationfeatures=0
profiler.force_disable_ulog=1
profiler.force_disable_err_rpt=1
ro.ril.sensor.sleep.control=1
ro.config.hw_power_saving=1
ro.mot.eri.losalert.delay=1000

#JIT (If you use art delete this line)
dalvik.vm.execution-mode=init:jit

#Enable 16bit Transparency (Yes, 16 bit transparency applies but maybe placebo for performance)
persist.sys.use_16bpp_alpha=1

#Increase jpg quality to 100%
ro.media.enc.jpeg.quality=100

---

Thats it :D Reboot your phone and see the change!

These are not my tweaks I didn't invent them :D But I gather them slowly, BEST for our i9100. It took my 6 months to test all the tweaks and combine them.

If I helped you please press THANKS button.

[Q] Samsung Galaxy S2 i9100 Stuck on Boot Screen - Can't Even Flash via Odin topic

Hello,

First of all, im sorry for creating a new thread for this very common issue.
the reason i decided to create a new thread is because i tried everything to solve this problem but no post on the internet was helpful.

so here it goes,
My brother has a galaxy S2 i9100 and it was rooted. few days a go he decided to factory reset the phone before unrooting the device first.
the phone then got stuck on Samsung galaxy S2 boot screen with yellow triangle at the bottom.

since then i have tried following but no method has worked so far...
1. downloaded Odin and the firmware file (tar/MD5)
2. i put the phone in download mode
3. i open Odin and only ticked Auto Reboot and F. Reset Time
4. clicked on PDA and selected the firmware file
5. after it finished checking the firmware in Odin i connected my phone and hit the Start button.
6. the process got stuck on boot.bin.

now, i have tried the above process with the following combinations,
3 different USB cables,
3 different Odin versions (Odin_3.10.0 , Odin3-v1.85 , Odin307)
3 different USB ports on My windows 7 ultimate X64 computer
2 different firmware files downloaded from different websites.
and restarted my PC several times before starting the procedure again.

The process always gets stuck on the same place (boot.bin)
i have also uninstall and reinstall the drivers.
finally i downloaded the Samsung Kies to avoid the driver confusion.
i also ended all the Kies processes from the task manager before running Odin as an Administrator.

i have also fully charged the phone few times and tried the whole procedure many times.
also kept the battery aside for few minutes before starting the procedure


somebody please help i have no ideas left anymore.
sorry for my bad english.



Thanks and Regards