Hey Guys
I rooted my phone yesterday finally
I however wanna install a new rom/custom kernel on it. However reading the reviews of roms, they have some bugs that i wudnt want..
After quite a bit of research, i found the speedmod k3-25..
Now my basic goal is to have a better performance and better battery life...and i have heard the speedmod does exactly that.
Now my questions are:
1. Is there any better kernel or a stable rom (by stable i mean no bugs in common usage) that enhances performance better than the speed mod?
2. I can directly flash the speedmod kernel after booting on CWM and choosing the speedmod zip, right? And it can be done on stock firmware and kernel with stock rom?
3. I will make a nandroid backup of my phone.. In case something goes wrong or i am not satisfied with the kernel, can the nandroid back up revert my phone to the previous state as it was with all apps and data intact? or should i use titanium backup..but in case the phone doesnt start, titanium backup will b useless.. :|
4. Lastly, will i need to a factory reset/wipe before i install speedmod or just need to flash it directly
Please answer the quesions
thanks
aviral1990 said:
Hey Guys
I rooted my phone yesterday finally
I however wanna install a new rom/custom kernel on it. However reading the reviews of roms, they have some bugs that i wudnt want..
After quite a bit of research, i found the speedmod k3-25..
Now my basic goal is to have a better performance and better battery life...and i have heard the speedmod does exactly that.
Now my questions are:
1. Is there any better kernel or a stable rom (by stable i mean no bugs in common usage) that enhances performance better than the speed mod?
2. I can directly flash the speedmod kernel after booting on CWM and choosing the speedmod zip, right? And it can be done on stock firmware and kernel with stock rom?
3. I will make a nandroid backup of my phone.. In case something goes wrong or i am not satisfied with the kernel, can the nandroid back up revert my phone to the previous state as it was with all apps and data intact? or should i use titanium backup..but in case the phone doesnt start, titanium backup will b useless.. :|
4. Lastly, will i need to a factory reset/wipe before i install speedmod or just need to flash it directly
Please answer the quesions
thanks
Click to expand...
Click to collapse
I using kernel SiyahKernel version 3,3,3d and rom cMIUI for mi this is rom does not have problems.
Hey
In short:
1. My preference is Wanamlite rom, smooth stable no bugs and tweaked for performance and battery.
2. Yes
3. Yes
4. No
Sent from my GT-I9100 using xda app-developers app
Related
Is it ok to flash a custom kernel on top of another custom kernel?
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You dont need to revert on the original one before flash another custom. But you need to format dalvik cache and cache in recovery before flashing or you probably have a bootloop.
I suggest to make a backup of the rom in recovery, so If something goes wrong you can enter recovery and have the latest known working rom back in 2 minutes.
Please note flashing kernels always have a very small chance to corrupt your efs partition, its suggested to backup your efs folder before start play with roms and kernels. How to backup the efs, use the search tool of the forum
Sent from my GT-I9100 using Tapatalk
rembrandtlnx said:
You dont need to revert on the original one before flash another custom. But you need to format dalvik cache and cache in recovery before flashing or you probably have a bootloop.
I suggest to make a backup of the rom in recovery, so If something goes wrong you can enter recovery and have the latest known working rom back in 2 minutes.
Please note flashing kernels always have a very small chance to corrupt your efs partition, its suggested to backup your efs folder before start play with roms and kernels. How to backup the efs, use the search tool of the forum
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Thanks for that. I know how to backup efs. Can i just use nitrality instead of ADB? To flash ROMs does it need to be in a specific firmware like sgsl or is it ok to have different firmware from the base of a custom rom?
Sent from my GT-I9100 using xda premium
I know my english sux sry:
Depends on the kernel but usually it is listed in the kernel thread the how to (odin or clockworkmod), clockworkmode is already on your phone if you rooted it with cf-root.
Now, to enter clockworkmod recovery, just push volume up + home + power button until the S2 bootlogo appears, then wait few seconds.
About the kernel type, i always flashed any kernel despite of my baseband, the difference is not so big.
if something is not working, you can always youse the nandroid backup (the backup done with the recovery cwm (up+home+power) and get back to the previous rom with previous kernel.
Im not really in the kernel "how to" someone else can prolly give you more detailed info, but as for me, i flashed ninphetamine 2.05 and 2.1.3 in cwm and it worked.
But.. as always, the kernel developers got a how to install in their kernel thread, so just read those and be sure about if you need odin or clockworkmod, if you are not sure, DONT flash anything until you are sure on how to proceed or wich system to use for flashing, better keep an old kernel with a working phone than have a brick to hold the papers
PS: also almost all the roms on the S2 forum are flashable with the clockworkmod, only few (like the lite'ning) are flashable with odin.
Again, i know im boring, dont proceed if you are not sure, better ask 10 times instead brick your phone
ephraim033 said:
Is it ok to flash a custom kernel on top of another custom kernel?
Yes not a problem flash as per the custom kernel instructions .
Kernel can be changed within an individual firmware or custom rom .
jje
Click to expand...
Click to collapse
Thanks for the reply guys. Coming back to my second question. What if i have KF1 and the rom i want to flash has a base of KI3, should i flash to stock KI3 first before flashing the custom rom or is it ok to flash a KI3 custom rom without flashing first to stock KI3?
Sent from my GT-I9100 using xda premium
The custom rom first, the kernel after.
I got the habbit to boot succesfully at least once the custom rom. If everything is ok i then flash the kernel. Better do 1 task at time.
You can decide to try the rom without change the kernel..and try a different one if you experience battery drain or other problems.
Sent from my GT-I9100 using Tapatalk
If i am on KH3 and want to flash a custom rom based on KI4 then i would flash stock KI4 and KI4 root first .
Custom rom flashed i will often try a different kernel later .
jje
from my experience
I have found that when i upgraded rom from gingerbread to ics that most custom kernals work with these roms ie now running with xxlpw ics (from gingerbread) with xwlp7 kernal. from what i have read on other posts and threads i could swap kernal to siya or any other as the mega good developers have made them (hotswappable) interchangeable as previous reply said swapping kernal might give you better battery or solve overheat probs.
Eg iwas running darkys rom with siya kernal v?something my phone rocketed temp in short time so i swapped kernal for an up to date one (could have used older one) it solved problem.
Anyone feel free to correct explination im still learning too lol
linuxnubee said:
I have found that when i upgraded rom from gingerbread to ics that most custom kernals work with these roms ie now running with xxlpw ics (from gingerbread) with xwlp7 kernal. from what i have read on other posts and threads i could swap kernal to siya or any other as the mega good developers have made them (hotswappable) interchangeable as previous reply said swapping kernal might give you better battery or solve overheat probs.
Eg iwas running darkys rom with siya kernal v?something my phone rocketed temp in short time so i swapped kernal for an up to date one (could have used older one) it solved problem.
Anyone feel free to correct explination im still learning too lol
Click to expand...
Click to collapse
I'll just point out this thread was dead since Sept 30 before you posted...
So i rooted by flashing, via odin, CF-Root-SGS2_XW_XEF_KJ2-v5.0-CWM5 over the stock 2.3.6 rom from kies update. I then flashed cm7.1 stable successfully after a nandroid backup of the original rom.
Now question is, if i perform a cwm backup, do i get back to stock rom, with my apps intact?
Another question about kernel: My kernel version doesnt have I9100XXXX in it, how do i pick a kernel version if i wana change/update my kernel with cf-root?
Thanks for the answers .
just restore from nandroid backup and everything will be as it was when you did backup
restore backup or reflash it
Thanks for the answers, any thoughts on the second question?
blink_inthe_dark said:
Thanks for the answers, any thoughts on the second question?
Click to expand...
Click to collapse
what kernel have you got? what kernel you want to have?
I managed to flash siyah kernel successfully with no crashes and what not. but one problem persists: when i start the phone everything is ok, but after i lock then unlock, display quality drops and everything becomes grainy, poorly drawn and somewhat pixelated. Anybody has an idea about that?
Should i just flash another kernel all together? what do you recommend with cm 7.1? I read somewhere about the stock cm7.1 kernel, where could i get that?
Seriously sorry for so much questions, but i think you can see how the issue is bugging me. Big Thank you for answers..
Hello, i would like to know if battery life between a Stock Rom and a Custom Rom like (NeatRom) is various ?
So i don't know if it worth to go to this custom rom .. because i'm in stock rom right now with siyah kernel and some app frozen with titaniumbackup.. and i was just asking myself if i go to this custom rom with same kernel and same frozen app .. If i would see a difference between batterylife ?
Thanks
Nobody can answer that for you. You're only going to find that out if you try the other rom. Make a Nandroid backup of your current setup, then move to the other rom & try it out for a bit. That way if you don't like it, you can easily restore your current rom/kernel which obviously works well for you.
Hello,
I want to install Android 4.4.4 on my good old S3, but I have some questions.
The phone is GT-I9300 with stock kernel 3.0.31 and baseband I9300XXUGNA8 -....... with stock Android 4.3
The smartphone is already root (Super Su 2.1) installed busy box 1.22.1 and I want to install this ROM CM-11-20140914-NIGHTLY-i9300 and Kernel boeffla-kernel-2.3a-CM11.0-i9300.CWM
I've changed the recovery (I have TWRP and CMR)
I want ask about:
1. Is it the good choice of the combination of ROM and kernel and are they compatible with my phone?
2 In my situation with the stock kernel and stock ROM what I have to install first? Kernel and then ROM or vice versa, because I don’t want to BRIC the phone.
3 If something goes wrong is there already an option for unbrick or not?
4.Can I used to change the ROM and Kernel, CyanogenMod Installer and Universal Kernel Flash applications or is better to do it manually in recovery. I see that Odin unable to install custom ROM. Am I right?
5 Is it possible and how I can make a backup of the kernel?
6 What is the connection between the baseband number and the compatibility with the kernel?
Thank you in advance for your advices and I know that all what I do is on my own risk.
I apologize for my English because is not good.
Best Regards
bmwpow said:
Hello,
I want to install Android 4.4.4 on my good old S3, but I have some questions.
The phone is GT-I9300 with stock kernel 3.0.31 and baseband I9300XXUGNA8 -....... with stock Android 4.3
The smartphone is already root (Super Su 2.1) installed busy box 1.22.1 and I want to install this ROM CM-11-20140914-NIGHTLY-i9300 and Kernel boeffla-kernel-2.3a-CM11.0-i9300.CWM
I've changed the recovery (I have TWRP and CMR)
I want ask about:
1. Is it the good choice of the combination of ROM and kernel and are they compatible with my phone?
2 In my situation with the stock kernel and stock ROM what I have to install first? Kernel and then ROM or vice versa, because I don’t want to BRIC the phone.
3 If something goes wrong is there already an option for unbrick or not?
4.Can I used to change the ROM and Kernel, CyanogenMod Installer and Universal Kernel Flash applications or is better to do it manually in recovery. I see that Odin unable to install custom ROM. Am I right?
5 Is it possible and how I can make a backup of the kernel?
6 What is the connection between the baseband number and the compatibility with the kernel?
Thank you in advance for your advices and I know that all what I do is on my own risk.
I apologize for my English because is not good.
Best Regards
Click to expand...
Click to collapse
1. Yes, i had both of them for awhile and it worked great for me, pretty good battery (i changed the governor and i/o scheduler though).
2. ROM then kernel, atleast ive always done that. If you flash rom second, the cm stock kernel will be installed and you will have to flash boeffla again.
3. Not too sure about unbricking, sorry. As far as i know, brick means pretty much useless/deadweight.
4. CM installer installs a snapshot for the installer and not the nightly you mentioned along with the cm stock kernel. I always flash manually via CWM recovery but that's my personal choice.
5. To backup the kernel, someone else will know but you could just make a nandroid backup of everything before flashing (recommended anyways).
6. I wouldnt know, sorry.
Hope i helped you, Good Luck!
Grimzee said:
1. Yes, i had both of them for awhile and it worked great for me, pretty good battery (i changed the governor and i/o scheduler though).
2. ROM then kernel, atleast ive always done that. If you flash rom second, the cm stock kernel will be installed and you will have to flash boeffla again.
3. Not too sure about unbricking, sorry. As far as i know, brick means pretty much useless/deadweight.
4. CM installer installs a snapshot for the installer and not the nightly you mentioned along with the cm stock kernel. I always flash manually via CWM recovery but that's my personal choice.
5. To backup the kernel, someone else will know but you could just make a nandroid backup of everything before flashing (recommended anyways).
6. I wouldnt know, sorry.
Hope i helped you, Good Luck!
Click to expand...
Click to collapse
Thank you. I've change ROM and the kernel and all it is work perfect
bmwpow said:
Thank you. I've change ROM and the kernel and all it is work perfect
Click to expand...
Click to collapse
You're welcome and glad to hear, enjoy cyanogenmod with boeffla
I searched a lot but nothing found. On Gingerbread I had no problems. Now on Jellbean there is a problem. CWM gives bootloop and PhilZ kernels are for specified roms, which actually don't match my kernel XXMS7 XEO. Is there any other way to make nandroid backup or just through custom recovery? I don't need any other functionality just full backup in case I screw something or occasionally refresh everything with all set up.
blackfire74 said:
I searched a lot but nothing found. On Gingerbread I had no problems. Now on Jellbean there is a problem. CWM gives bootloop and PhilZ kernels are for specified roms, which actually don't match my kernel XXMS7 XEO. Is there any other way to make nandroid backup or just through custom recovery? I don't need any other functionality just full backup in case I screw something or occasionally refresh everything with all set up.
Click to expand...
Click to collapse
Did you try dorimanx by GreekDragon or Chhapil?
And I think that you may flash latest Philz kernel cause I did it and had no problem.... But try using dorimanx and also there's another option... Apolo by pedestre....
PS this is a development thread... Questions must be asked in question answer forum
JB Kernels
Here's the link to the kernels I use for my S2
Apolo Kernel - Here (Thread here)
Dorimanx by @GreekDragon Here (Thread Here)
Philz XWMS3 Kernel Here
How about Jeboo kernel? Are these three kernels above match XXMS7 rom?
blackfire74 said:
How about Jeboo kernel? Are these three kernels above match XXMS7 rom?
Click to expand...
Click to collapse
As per what I know, if you're on Stock Jellybean GT I9100 then they should work... I've not used jeboo and hence don't have idea about it
There is no way i can experiment. I just need to know what will exactly work with my firmware as i can't loose anything set up on my phone. So, i need working kernel, custom recovery and be able to make a nandroid backup without any risk of bootloop or whatever, then i may experiment.
blackfire74 said:
There is no way i can experiment. I just need to know what will exactly work with my firmware as i can't loose anything set up on my phone. So, i need working kernel, custom recovery and be able to make a nandroid backup without any risk of bootloop or whatever, then i may experiment.
Click to expand...
Click to collapse
If you have already rooted then use titaniumbackup to backup your apps and data....additionally you can use third party apps like superbackup to backup contacts call logs and sms...then you should have your important stuffs backed up....then flash Apolo kernel...you should be done....
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