Flashing new kernel how todo know if its safe - Galaxy S II Q&A, Help & Troubleshooting

As the title says, I've used siyah vsync previously on my rom recently updated it and don't know if it still work with it, in case it's not compatible anymore would I lose recovery or brick my phone?
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Hi,
it would be good to know which rom you are using. If you are not sure siyah kernel runs with your rom, check the version and look in the siyah thread if it runs with it
Andi

Valholy said:
As the title says, I've used siyah vsync previously on my rom recently updated it and don't know if it still work with it, in case it's not compatible anymore would I lose recovery or brick my phone?
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
If the kernel is incompatible with the ROM, you wouldn't be able to boot. But recovery and download modes should still be accessible.
But if the kernel is incompatible with your device, you could end up with a bricked phone!

Related

[Q] Tegrak Kernel

Has anybody tried installing the Tegrak Kernel (http://forum.xda-developers.com/showthread.php?t=920711) it seems to be compatible for the SGP
They are not compatible. If you flash it, you will just end up at the Samsung logo before it boots. It is made for the non US player. I wish it was though.
Sent from my YP-G70 using XDA App
so I have the international player then I can just flash the one from the link there?
You should be able to flash it no problem. Just back up your device before flashing it to be sure.
Sent from my YP-G70 using XDA App
if i back it up with titanium backup is that enough?
theraf said:
so I have the international player then I can just flash the one from the link there?
Click to expand...
Click to collapse
Do you have an 5.0 international player? If so, there is already a kernel in development section. See this thread.
Are you looking for anything specific in Tegrak kernel?
theraf said:
if i back it up with titanium backup is that enough?
Click to expand...
Click to collapse
Do you have a Kernel with CWM on it? If so, that is the easiest way.
i still have stock kernel, which is why i wanted to use this one. I might try SteveS kernel instead
Good choice. You can always back up your device with CWM then flash the kernel using odin. If it fails, just flash the steves kernel back on the device.
Sent from my YP-G70 using XDA App
DO NOT FLASH THIS KERNEL IT WILL RESULT AS YOUR DEVICE WON'T BOOT!!!!!!!!!!!!!!!!!!!!!!!! OR BRICKED IF YOU WANT. (I tried it)

> need help before i risk flasing my first rom <

This is my first post and i was wondering if people could answer some questions i have.
First off heres my phones specs
Samsung galaxy s2
Model number
GT-I9100
Android version
4.0.3
Baseband version
I9100XXLPQ
Kernel version
3.0.15-I9100XXLPQ-CL223505
[email protected] #3
Build number
IML74K.XXLPQ
I've rooted my phone using rachmat3 method and thats how far i've got because only just got phone as a gift and im scared to flash a new rom incase i brick my phone.
Is it safe to use the cwm.zip to flash a rom that i used from rachmat3 root method or do i need a updated version of cwm?
Can someone recommend a fully working paranoid android rom that i can use for daily use?
Which kernel would be best to use with paranoid android rom?
Should i flash a kernel before i flash a rom?
If i install paranoid android rom would i then have a permanant cwm on my device or would i still need to use my temporery cwm.zip?
What is the chances of me bricking my phone?
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Flash what ever rom u want till its for GT-I9100
No need to worry
Just read the specific rom instructions carefully
Sent from my GT-I9100 using xda app-developers app
Yes mate now u can flash any Rom ....Just read the instruction before flashing
I would advise you to flash a safe kernel first before doing any wipe and flashing any roms. Siyah is a safe bet.
Sent from my GT-I9100 using Tapatalk 2
1. Download ROM Manager and you'll be able to flash any ROMs you wish using that.
2. All the PA versions are working fine, so just browse through and choose for yourself.
3. Asking questions like that is against forum rules because they often lead to arguments. The best advice is just to download and flash different kernels and stick with which ever one you're happy with.
4. It really doesn't matter in which order you flash them. The result is still the same. I personally always flash the ROM first, but it doesn't make a difference.
5. If you use ROM Manager, as mentioned previously, even if you have to do a full wipe when flashing a different ROM, it doesn't matter because you can simply download it again anyway. Or just save it to your SD card.
6. The changes if bricking your phone are higher if you're worried about it. Just be sure to read all instructions given about installation and follow them perfectly and you'll be fine.
If after reading about flashing ROMs you are still worried, then you're better off waiting for a bit until you've done more research into what exactly is needed.
I'm a product of the system I was born to destroy!
Thanks for your replys.
just follow the steps mentioned and follow some video (like on youtube) and it'll be easy!
Would it be to much to ask if someone could put a link to the right paranoid android rom for my phone please
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toonarmy4life said:
Would it be to much to ask if someone could put a link to the right paranoid android rom for my phone please
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
ParanoidAndroid for GT I9100: http://forum.xda-developers.com/showthread.php?t=1580070
Swyped from my Samsung Galaxy SII
Cheers jokesy
Sent from my GT-I9100 using Tapatalk
I don't recommend using ROM Manager since it can brick the phone.
Why don't flash custom kernel and use real CWMR?
KidCarter93 said:
It really doesn't matter in which order you flash them. The result is still the same
Click to expand...
Click to collapse
Most ROM zips include kernels, so if somebody wants to stay with the same kernel, then it's necessary to flash custom kernel again.
przemcio510 said:
I don't recommend using ROM Manager since it can brick the phone.
Why don't flash custom kernel and use real CWMR?
Click to expand...
Click to collapse
I agree, I wouldn't recommend rom manager for the s2
Sent from my Nexus 7 using xda premium
I just mentioned ROM Manager from personal preference to be honest.
I've always used it on my S2 and never had a problem with it.
I'm a product of the system I was born to destroy!
KidCarter93 said:
I just mentioned ROM Manager from personal preference to be honest.
I've always used it on my S2 and never had a problem with it.
I'm a product of the system I was born to destroy!
Click to expand...
Click to collapse
Yeah, but lots of people have bricked because of it
Sent from my Nexus 7 using xda premium
So should i flash siyah kernal then flash a new rom
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You can flash any rom personally i love cm 9 and it is safe to flash with cwm. I was worried the first time too
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Ok so i've downloaded paranoid android and gapps ive nandroid backed up i've efs backed up all thats left to do is flash pa lol is it defently safe using rachmet3 temp cwm.zip or should i download a new temp cwm or use permanent cwm through flashing siyah kernal. Just coz i have no pc to revive a bricked phone and i wont beable to check online for solutions as my phone will be bricked.
Sent from my GT-I9100 using Tapatalk
You will need a pc if for example you flash a kernel and somethings not right.You cant get cwm, only download mode.
That happened to me when I flashed a siyah kernel.Phone was stuck and I couldnt boot into cwm.Only way to fix was boot to download mode and use odin/pc.
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Thanks for letting me know. I think i'l pass on a new rom for now then. Im gutted coz i really wanted to try pa rom it looks ace
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toonarmy4life said:
Thanks for letting me know. I think i'l pass on a new rom for now then. Im gutted coz i really wanted to try pa rom it looks ace
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
I can help you from here, pretty simple
Within the next 30 mins, you should be running PA.
First, flash Siyah kernel with your temporary CWM recovery. Very safe
when you are done, let me know

[Q] What rom to use?

My phone is rooted now and few friends here gave me suggestions of siyah and some...i want to know if I can directly flash the rom from stock recovery mode..i downloaded ROM manager, but it only has clockwork mode and cyanogen i guess.. can i do that using siya?
You need CWRecovery on your phone (sounds like you used a root method that didn't involve using a kernel with CWM if you only have stock recovery). Best way to get it is to flash a kernel that has it built in - Siyah, Dorimanx, etc, etc. There's a number of them; search the development sections of the board. Once you've got CWM on, you'll be able to flash any rom you want.
ronak123456 said:
My phone is rooted now and few friends here gave me suggestions of siyah and some...i want to know if I can directly flash the rom from stock recovery mode..i downloaded ROM manager, but it only has clockwork mode and cyanogen i guess.. can i do that using siya?
Click to expand...
Click to collapse
Siyah is a kernel, not a ROM. And no, you cannot flash a custom ROM from stock recovery. Search for rachmat3's rooting method and use that. Or flash the tar version of siyah or dorimanx via Odin.
ROM manager seems to have some issues with the S2. try to avoid using it as far as possible.
See which ROM you want to use. If it has the new Mali drivers use dorimanx 7.4 else use siyah 4.1.5
Sent from my GT-I9100 using xda app-developers app
ronak123456 said:
My phone is rooted now and few friends here gave me suggestions of siyah and some...i want to know if I can directly flash the rom from stock recovery mode..i downloaded ROM manager, but it only has clockwork mode and cyanogen i guess.. can i do that using siya?
Click to expand...
Click to collapse
Siyah is a kernel developed by gokhanmoral. ROM on the other hand is also called firmware, you can flash them both in clockworkmod recovery, but cannot be done in stock recovery.
As for ROM manager, I've seen people brick their phone using it, so just stick to flashing clockworkmod recovery.
ronak123456 said:
My phone is rooted now and few friends here gave me suggestions of siyah and some...i want to know if I can directly flash the rom from stock recovery mode..i downloaded ROM manager, but it only has clockwork mode and cyanogen i guess.. can i do that using siya?
Click to expand...
Click to collapse
Don't use rom manager, unless you want an expensive brick.
And Rootbox with dorimax is a good combination you can check out
Sent from my GT-I9100 using xda premium
Thnx for faster replies guys..i wont use rom manager but ive 2 times bricked my phone is because i tried to root my phone using cf root and using insecure kernal..i got stuck at triangle and it does not load..so wanted to confirm if its k..
Also as now i have root acess, what type of apps can i use like i want performance and graphics
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ronak123456 said:
Thnx for faster replies guys..i wont use rom manager but ive 2 times bricked my phone is because i tried to root my phone using cf root and using insecure kernal..i got stuck at triangle and it does not load..so wanted to confirm if its k..
Also as now i have root acess, what type of apps can i use like i want performance and graphics
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
If you are using siyah kernel you can tweak the GPU steps and overclock your CPU using an app called ExTweaks. But note you are not going to get any serious performance boost, your machine tends to be what you have.

[Q] CWM deleted, no Boot, paranoid android, siyah kernel

hi guys,
i tried to flash paranoid android, latest version. everything worked fine. after that i flashed gapps and the newest siyah kernel.
After that, my S3 shows only the s3 text and then nothing. The biggest problem is that the cwm is gone. But i can go to the standard download mode.
I need help to get the device running again...
I tried the following:
- flashed the stock kernel via odin to get back cwm - no sucess
- flashed the stock fw - no sucess - hangs now at the samsung text
Thanks in advance
flash the tar version of your recovery of choice through Odin. or format data from the stock recovery.
either way, it's only because you don't read. siyah doesn't support 4.2
R: [Q] CWM deleted, no Boot, paranoid android, siyah kernel
I believe before flashing gapps, if you booted up the phone, youre supppsed to wipe the cache: did you do that? If you did your gapps package might be broken or the kernel (check its the s3 version, which is a smaller version than the s2 one).
Try redownloading and reflashing everything (except paranoid android, if you know i does work when the phone starts up...)
Sent from my GT-I9300 using xda app-developers app
killbubble said:
I believe before flashing gapps, if you booted up the phone, youre supppsed to wipe the cache: did you do that? If you did your gapps package might be broken or the kernel (check its the s3 version, which is a smaller version than the s2 one).
Try redownloading and reflashing everything (except paranoid android, if you know i does work when the phone starts up...)
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
no, read my reply
R: [Q] CWM deleted, no Boot, paranoid android, siyah kernel
If he wants a new rom why should he flash from somewhere else? The rom is supposed to be working standalone...
Sent from my GT-I9300 using xda app-developers app
what are you talking about? he said he doesn't have CWM anymore, so he needs to flash a custom recovery first through Odin.
and again, read my reply, his issue was that he didn't read - Siyah DOES NOT support 4.2
R: [Q] CWM deleted, no Boot, paranoid android, siyah kernel
Missed that
Sent from my GT-I9300 using xda app-developers app
yeah, that's why I said "read my reply" in the first place
R: [Q] CWM deleted, no Boot, paranoid android, siyah kernel
Guess so...
Sent from my GT-I9300 using xda app-developers app
Glebun said:
flash the tar version of your recovery of choice through Odin. or format data from the stock recovery.
either way, it's only because you don't read. siyah doesn't support 4.2
Click to expand...
Click to collapse
Thanks for the reply. Thats right, i have read it afterwards
I already tried to flash a recovery through odin. after flashing the device is rebooting. Then i have to remove battery because it hangs again. After That CWM isn´t installed at all. Maybe you can give me a Link of an other version?
How do i format data from stock revovery?
flash PhilZ recovery through Odin and then get into recovery.
---------- Post added at 08:07 PM ---------- Previous post was at 08:05 PM ----------
And for the second question
R: [Q] CWM deleted, no Boot, paranoid android, siyah kernel
http://forum.xda-developers.com/wiki/ClockworkMod_Recovery
Sent from my GT-I9300 using xda app-developers app
Thanks Glebun.
2nd answer
That helped me. realy serious!
R: [Q] CWM deleted, no Boot, paranoid android, siyah kernel
Glebun said:
flash PhilZ recovery
Click to expand...
Click to collapse
Philz recovery is cool but can we be sure it will last? Is it worth keeping a recocery like that or wait for clockwork to get smarter?
(Will the backups alwaya be comptible with clockwork?)
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killbubble said:
Philz recovery is cool but can we be sure it will last? Is it worth keeping a recocery like that or wait for clockwork to get smarter?
(Will the backups alwaya be comptible with clockwork?)
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
what? you don't really make sense
R: [Q] CWM deleted, no Boot, paranoid android, siyah kernel
Glebun said:
what? you really make sense!
Click to expand...
Click to collapse
(I know, try not to spam too much just to tell me things i already know...)
But how do we know philz (if thats his name) will keep updating his recovery? Wouldnt it be safer to stick with clockworkmod?
Sent from my GT-I9300 using xda app-developers app
you still don't know what spamming is, do you?
then don't use any custom ROMs, because how do you know the dev will keep updating it? makes no sense whatsoever, stop confusing people
R: [Q] CWM deleted, no Boot, paranoid android, siyah kernel
That's not at all the same thing...custom roms change from one to another but a recovery needs to be solid, the thing holding all of your stuff together in the safest way possible. Of course i could trust a rom developer, but since android updates oftenly i will probably change rom just as often...not the same for recovery. Recovery needs to stay put, solid, stable, updated and trustworthy.
How can i know this philz guy wont make any new versions of his recovery after a month to come, or how can i know if i choose to switch to clockworkmod again because philz stopped development the backups will still be compatible?
Sent from my GT-I9300 using xda app-developers app
---------- Post added at 05:34 PM ---------- Previous post was at 05:32 PM ----------
Glebun said:
then don't use any custom ROMs
Click to expand...
Click to collapse
Thats why im still on stock...alyhough i am considering switching to foxhound...(because it is perfect for s3 and well updated).
Sent from my GT-I9300 using xda app-developers app
PhilZ recovery can make backups compatible with CWM and TWRP. You can change your recovery any time.
and good luck being on stock.
actually, having an updated rom is more important than an updated recovery. recovery just needs to backup and restore to be useful.
R: [Q] CWM deleted, no Boot, paranoid android, siyah kernel
Yeah but i dont wanna miss faster backups...if they update i might miss it...cause philz doesnt have its own rom manager app...even though i prefer it to cwm.
Sent from my GT-I9300 using xda app-developers app

rooting I9100

hello everybody
my sister bought a new s2 and wants me to make it run on jellybam but as I'm not used to s2 (i have s3) i have no idea how to root the mobile and from where can i get cwm for s2
may anyone help me...i will be very thankful to you
N.B. it runs on 4.0.4 official now
You can flash PhilZ-kernel with built-in CWM recovery. Have a look at PhilZ-kernel thread to find the appropriate kernel for you.
Sent from my Nexus 7 using xda app-developers app
Read read read And don't try anything before you did.
AndDiSa said:
You can flash PhilZ-kernel with built-in CWM recovery. Have a look at PhilZ-kernel thread to find the appropriate kernel for you.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
from where can I get it?
does it require PC and odin or not?
Sent from my GT-I9300 using Tapatalk 2
In http://forum.xda-developers.com/showthread.php?t=1877270 you can find your appropriate kernel, but you need to choose the right one, because the latest kernels are for JellyBean only.
No, you don't need Odin/heimdall and you don't' need a PC even if it's better to have one at hand when it comes to issues.
One hint: read and try to understand everything before flashing. If you are unsure, ask, otherwise there is a chance to brick the device, especially with 4.0.4 stock (-> brick bug)
Sent from my Nexus 7 using xda app-developers app
AndDiSa said:
In http://forum.xda-developers.com/showthread.php?t=1877270 you can find your appropriate kernel, but you need to choose the right one, because the latest kernels are for JellyBean only.
No, you don't need Odin/heimdall and you don't' need a PC even if it's better to have one at hand when it comes to issues.
One hint: read and try to understand everything before flashing. If you are unsure, ask, otherwise there is a chance to brick the device, especially with 4.0.4 stock (-> brick bug)
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
okay thanks dude, but is there a safe one even if with a PC, I'm used to rooting and flashing recovery mods and kernels using PC and odin for my s3 and it is very safe and no chance of bricking the phone, so is there a similar way for s2 ?
Sent from my GT-I9300 using Tapatalk 2
ahmed bahaa said:
okay thanks dude, but is there a safe one even if with a PC, I'm used to rooting and flashing recovery mods and kernels using PC and odin for my s3 and it is very safe and no chance of bricking the phone, so is there a similar way for s2 ?
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
just download the 'Siyah kernel v 5.0.1' (.tar file for flash with Pc odin) from the link below and flash the same on ur phone using PC odin, it will root ur phone and install a working, brick free cwm recovery, which u can use to flash any custom rom/kernel of ur choice
Siyah Kernel v5.0.1
Sun90 said:
just download the 'Siyah kernel v 5.0.1' (.tar file for flash with Pc odin) from the link below and flash the same on ur phone using PC odin, it will root ur phone and install a working, brick free cwm recovery, which u can use to flash any custom rom/kernel of ur choice
Siyah Kernel v5.0.1
Click to expand...
Click to collapse
thanks a lot bro, will give it a try today
btw im going to flash the latest jellybam on i9100 so will siyah have any problem regarding the ROM ? i mean will there be any lag or something ?
CWM matters, not the kernel you're actually on.
Of course if you're on 4.0.4's kernel you can't wipe.
Sent from...this is not even my S2
The Siyah kernel will be overwritten during the jellybam flash anyway......so as mentioned. ...the kernel doesn't matter/won't cause compatibility issues
Sent from my rooted, de bloated, stock JB powered S2 via PhilZ kernel and XDA developers app
ok thanks a lot dudes that really helped a lot

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