Hi guys, got my s3 weeks back n now its rooted via chainfire method, now im in the midst of confusion about what kernel/rom to flash.
1 - Do I need to always flash both kernel and rom ?
2 - Can i just flash stable kernel but leaving the rom as stock ?
3 - via versa to question 2 ?
4 - Do i need to reset factory each time flashing Rom/Kernel ?
5 - Will i loose my apps/files/sd files/music each time flashing rom/kernel ?
THanks!
wormyx said:
Hi guys, got my s3 weeks back n now its rooted via chainfire method, now im in the midst of confusion about what kernel/rom to flash.
1 - Do I need to always flash both kernel and rom ?
2 - Can i just flash stable kernel but leaving the rom as stock ?
3 - via versa to question 2 ?
4 - Do i need to reset factory each time flashing Rom/Kernel ?
5 - Will i loose my apps/files/sd files/music each time flashing rom/kernel ?
THanks!
Click to expand...
Click to collapse
If you flash a rom it will flash a kernel so you do not always need to flash both.
Yes.
Yes.
If you want the best experience possible it is always best to factory reset between each ROM. Not necessary between kernels.
Your apps are deleted from the phone as well as texts and emails when you factory reset. However, your apps are all tied to your Play account so you can just redownload them or you can use an app like titanium backup to backup your apps and SMS backup and restore to restore your texts. Your SD card and phone internal storage will never be deleted.
Sent from my GT-I9300 using Tapatalk 2
wormyx said:
Hi guys, got my s3 weeks back n now its rooted via chainfire method, now im in the midst of confusion about what kernel/rom to flash.
1 - Do I need to always flash both kernel and rom ?
2 - Can i just flash stable kernel but leaving the rom as stock ?
3 - via versa to question 2 ?
4 - Do i need to reset factory each time flashing Rom/Kernel ?
5 - Will i loose my apps/files/sd files/music each time flashing rom/kernel ?
THanks!
Click to expand...
Click to collapse
1. Not necessarily, you can selective flash kernel, ROM or/and mods.
2. Yes. Keep in mind, not all kernels work on all ROM, read before you flash.
3. Presumably yes but almost all ROMs come with kernel. Some ROMs are tightly integrated with kernel (pre-set kernel for best user experience and battery saving).
4. If you using the same base (or incremental upgrade ROM), you don't need to wipe. Full wipe maybe necessary if you experience problem as you upgrade ROM.
5. CWM recovery usually did not erase /sdcard data even in data wipe (check recovery post), in full wipe, you may need to backup your apps & data (I use Titanium Backup).
Related
Hi
I am new on the SGS2 though i have one Android Tablet.
I have been reading a lot and there is something i have not been able to find.
I want to root, , install CMW and install this custom ROM: Dynamic
http://forum.xda-developers.com/showthread.php?t=1582217
1.- Do i need to install first the CF-ROOT kernel matching my actual Firm to make the root or can i install the Siyah kernel at this will make the root anyway?
2.- If i install the CF-root using ODIN, do i need to install an specific kernel for that ROM? Or most kernels work with most rom?
Thanks.
I suggest you flashing the cf-root kernel with odin then you can install your custom rom from the modified recovery mode flashing the .zip file of the rom.
You can flash the siyah kernel after that, because generally custom roms mount a custom kernel which supports CWM (Clock Work Mod, the custom recovery).
If i helped u, press thanks.
if you are on ics you should be good flashing siyah but most of us here started with cf root
darkpollo said:
Hi
I am new on the SGS2 though i have one Android Tablet.
I have been reading a lot and there is something i have not been able to find.
I want to root, , install CMW and install this custom ROM: Dynamic
http://forum.xda-developers.com/showthread.php?t=1582217
1.- Do i need to install first the CF-ROOT kernel matching my actual Firm to make the root or can i install the Siyah kernel at this will make the root anyway?
2.- If i install the CF-root using ODIN, do i need to install an specific kernel for that ROM? Or most kernels work with most rom?
Thanks.
Click to expand...
Click to collapse
1/ follow the install notes stated for that rom also siyah kernel if flashed thru odin will give you root and install cwm/superuser
2/if you install cf root again follow install notes within that thread and it does say best to use same cf as your stock kernel or find one close to it to match
i prefer to use siyah less hassle but each to there own and everyone has there own choice
Thank you all.
I decided to go safe and try with CF-Root. Now i am rooted and i have installed the rom using the CWM.
Do you recommend to change the kernel again? I think that the rom has its own kernel but i am not sure.
Also something weird happen (little off topic), after wipe and reinstall the rom, i have some apps installed by default, some of them where on the old ROM.
I thought that all the apps will be deleted with the installation of the new rom.
Not sure how to fix it.
Thanks again
Apps will only be deleted by doing a full wipe in cwm. And you dont need to flash another kernel if you only want the root feature.. i think all the custom roms use a rooted kernel... some use cf-root, some siyah, some speedmod etc...
Well, i really prefer to use the features offered by other kernels. I was not sure if i can change the kernel keeping the Roms or if i need to reinstall everything afterwards.
How do i make a Full Wipe? most of the apps are bloatware and i do not want them.
Thanks
im also a noob and i use siyah without changing much
just OC to 1400 and choosing en demand for governor
darkpollo said:
Well, i really prefer to use the features offered by other kernels. I was not sure if i can change the kernel keeping the Roms or if i need to reinstall everything afterwards.
How do i make a Full Wipe? most of the apps are bloatware and i do not want them.
Thanks
Click to expand...
Click to collapse
You must go in the custom recovery and press "Data wipe/factory reset", so you wil have only the system apps, but you must start the phone configuration again.
U can flash another kernel if you want, there's no problem with the rom, but remember to do a dalvik wipe.
If youre thinking about to flash a new kernel, i would prefer to flash the kernel first (now) and then do a full wipe and dalvik wipe. Otherwise youre doing some work twice...
And if youre yet haveing some "bloatware" (e.g. from a provider branded firmware) after wipeing, you can delete them (be careful with system apps) with root explorer... (in "\system\app" folder....
darkpollo said:
Thank you all.
I decided to go safe and try with CF-Root. Now i am rooted and i have installed the rom using the CWM.
Do you recommend to change the kernel again? I think that the rom has its own kernel but i am not sure.
Also something weird happen (little off topic), after wipe and reinstall the rom, i have some apps installed by default, some of them where on the old ROM.
I thought that all the apps will be deleted with the installation of the new rom.
Not sure how to fix it.
Thanks again
Click to expand...
Click to collapse
If your happy with the results you get form using CF then by all means stay with it otherwise follow the thread in which your rom is based on users will often leave feedback on there selected kernels and setups like my signature for example check im sure theres users within your choosen thread with the same
I can advise using the kernel cleaning script after changing to another kernel. http://forum.xda-developers.com/showthread.php?t=1363738
This will prevent problems that left behind files from the old kernel can cause.
After flashing the file/script install the desired kernel
Thank you to everyone!
Ubbabubba said:
You must go in the custom recovery and press "Data wipe/factory reset", so you wil have only the system apps, but you must start the phone configuration again.
U can flash another kernel if you want, there's no problem with the rom, but remember to do a dalvik wipe.
Click to expand...
Click to collapse
I did the Data wipe/factory reset and everything as per the instructions:
*For a clean installation and no problem
- Download the ROM and put it on your S2.
- Go to Recovery
- Wipe data factory reset, wipe cache.
- In Advance: wipe dalvik cache and wipe battery stats.
- In mount and storage - format data , system and cache
- Install the zip file and you will get the CWM install completed message.
- Select Reboot Now and let the phone boot up to an Android setup screen.
- If there are Update, download it, put it on the phone, go to recovery and install it. Don't do wipes.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1582217
glowfinger said:
If youre thinking about to flash a new kernel, i would prefer to flash the kernel first (now) and then do a full wipe and dalvik wipe. Otherwise youre doing some work twice...
Click to expand...
Click to collapse
I think i am going to make it more than twice.
I will go to other kernel to try them. The battery on CF is not as good as i would like.
glowfinger said:
And if youre yet haveing some "bloatware" (e.g. from a provider branded firmware) after wipeing, you can delete them (be careful with system apps) with root explorer... (in "\system\app" folder....
Click to expand...
Click to collapse
That is the strange thing. I am not using any branded firmware, i came from one, but i thought everything was to be erased after the wipes and formats.
Spunkynitro said:
I can advise using the kernel cleaning script after changing to another kernel. http://forum.xda-developers.com/showthread.php?t=1363738
This will prevent problems that left behind files from the old kernel can cause.
After flashing the file/script install the desired kernel
Click to expand...
Click to collapse
I will use this on my next try this weekend.
If i do not understand wrong this is what i need to do:
Review the rom to find a kernel that suits it.
Use the kernel cleaning script
Install the new kernel.
Follow the instructions to flash the desired ROM with all the wipes and formats required.
Anything else?
story: I was running the original android 4.0.3 everything was ok until I tried to instal busybox and somehow I lost the root so I said why I dont upgrade to the latest version and that what I did but the version I installed (4.0.4 nordic countries) have problems with Bluetooth , camera and video player so I want to downgrade to an older version
Q : is it okay to downgrade
if not I think I can wait for JB if samsung is going to release that any time soon
aminov said:
story: I was running the original android 4.0.3 everything was ok until I tried to instal busybox and somehow I lost the root so I said why I dont upgrade to the latest version and that what I did but the version I installed (4.0.4 nordic countries) have problems with Bluetooth , camera and video player so I want to downgrade to an older version
Q : is it okay to downgrade
if not I think I can wait for JB if samsung is going to release that any time soon
Click to expand...
Click to collapse
Yes, of course it's possible, otherwise people would be stuck if they update and don't like what they flashed.
Sent from the Matrix
thank you for your fast reply
Sent from my GT-I9100 using xda app-developers app
If your having all those issues your probably flashing an incompatible rom or kernel version.
Go to sammoble.com, grab your stock 4.0.4 rom, flash it in ODIN, flash Siyak kernel and then reboot into recovery and wipe data/factory reset.
TheATHEiST said:
If your having all those issues your probably flashing an incompatible rom or kernel version.
Go to sammoble.com, grab your stock 4.0.4 rom, flash it in ODIN, flash Siyak kernel and then reboot into recovery and wipe data/factory reset.
Click to expand...
Click to collapse
but i dont want to wipe so im going back to the older version
How do i know the compatible rom/kernel version my kernel i9100XWLPG
aminov said:
but i dont want to wipe so im going back to the older version
How do i know the compatible rom/kernel version my kernel i9100XWLPG
Click to expand...
Click to collapse
Why not? Surely you made backups of apps/appdata or even a nandroid backup before installing new rom?
If you made app/app data backup simply restore after wiping/flashing new rom.
If you made a nandroid backup simply use app extractor to extract/install apps/appdata to new rom.
You can also backup/restore SMS with SMS Backup from store and your contacts will auto sync when you enter googole account.
If you go back and forth between roms you will keep on running into issues. Plus flashing stock roms in ODIN wipes your apps/app data anyway so its not as if using the wipe data/factory reset in CWM is going to lose your apps as you will have already lost them.
TheATHEiST said:
Why not? Surely you made backups of apps/appdata or even a nandroid backup before installing new rom?
If you made app/app data backup simply restore after wiping/flashing new rom.
If you made a nandroid backup simply use app extractor to extract/install apps/appdata to new rom.
You can also backup/restore SMS with SMS Backup from store and your contacts will auto sync when you enter googole account.
If you go back and forth between roms you will keep on running into issues. Plus flashing stock roms in ODIN wipes your apps/app data anyway so its not as if using the wipe data/factory reset in CWM is going to lose your apps as you will have already lost them.
Click to expand...
Click to collapse
i did a nandroid but ODIN didnt wipe anything what app u recommend me to backup with titanium backup??
aminov said:
i did a nandroid but ODIN didnt wipe anything what app u recommend me to backup with titanium backup??
Click to expand...
Click to collapse
What he meant was that if you flash a rom with Odin, you don't have to do the wipes manually through CWM again.
TB is a good app (and the most used by people as far as I know) to back up your USER apps (don't back up system apps). After flashing you can restore them, even with your app data included.
Sent from the Matrix
Donnie Sins said:
What he meant was that if you flash a rom with Odin, you don't have to do the wipes manually through CWM again.
TB is a good app (and the most used by people as far as I know) to back up your USER apps (don't back up system apps). After flashing you can restore them, even with your app data included.
Sent from the Matrix
Click to expand...
Click to collapse
the problems i was having is because i didn't wipe thnx anyway
Hello guys. I am currently using Slimbean RC1 and I made a backup of my rooted stock 4.0.4 with Siyah kernel so that when I restore my backup anytime in future then will not have any super brick risks. But I have a confusion. Do I need to do a full wipe in CWM before restoring backup? Or it will wipe automatically?
Sent from my GT-I9100 using xda premium
HI, I installed simplicity v5 on my gt-s5830i and patched it with v5.2 and now I want to install another rom. It's a nooby question but do I need to install a stock rom in my phone before installing another rom or can I do it directly. Also if I need to install the stock rom first then is it possible to do so with recovery mode or do I need to use odin. Thanks in advance :laugh:
No there is no need to install a stock Rom, you just need to install the new Rom through recovery. Backup your data with something like Titanium Backup because it is best to do a factory reset first to avoid any issues.
You can try a dirty flash which is without doing the factory reset but you might face problems with FC's.
I switched Roms many times before finding the one I liked each time just factory reset then install new Rom.
Sent from my PACman GT-I9100 using xda premium
Lately i'm experiencing problems with flashing custom roms (i.e. UltimaROM , Xperianze, whatever)
What i did is:
1: flash the latest CWM , touch and non -touch with Odin
2: download ROM of choice , copy to internal SD-card
3: reboot recovery, fact-reset, wipe cache + dalvik
4: flash rom ( with aroma installer )
5: boot phone
with booting it keeps hanging on the Samsung i9300 logo txt. It doesnt matter which rom i flash. it always keeps hanging.
I've tried alternative methods like flashing TWRP and do the same as above but again, no success. I also tried factory-reset after flash, cache wipe etc. no success.
The weirdest thing is: when i try to flash CM or MIUI ( current running MIUI ) , it works like a charm, but normal "custom" roms are not approved it seems.
does anyone have a suggestion for me what to do? or explain what i am doing wrong , or even better, can explain why CM-based ROMS work?
Have you checked the MD5 of your downloaded ROMs when they are on your SD card? Format system, data and pre-load before flashing? Tried flashing an alternative kernel/radio before you boot the first time?
If only stock based ROMs are a problem then it maybe something that is unique to them, probably a direct hardware hit via the kernel.
Try returning completely to stock to test, flashing Samsung's vanilla EMB5 via Odin - including stock recovery and full wipe. If that doesn't work then you may have a hardware issue that CM or MIUI doesn't use.
yeah good idea to return to stock and try all over again.
to your other questions: no i didnt flash another kernel after i flashed the custom rom. i've tried with several kernels which options were given to me in aroma installer ( boeffla, syah, stock )
md5: did that
format system and data: nope. kinda relied on the fact-reset + cache/dalvik
what do u mean with pre-load?
if I were you I would format data & system again manually after the fac. reset thing, or even more clean use the mega wipe flashable zip to have a clean slate to start from (it will format anything but the ext. sd-card). Then flash the rom from your ext. sd-card and see how it goes.
additional possibly helpful hints
hi there,
i'm not entirely sure if this will help you but generally speaking i came made a few observations about the fact that some people, mostly repeatingly the same users, encounter problems with their custom roms and/or flashing them, while others don't, albeit they are using the same devices.
i my selfe use 3 different devices, all rooted and running on pac 4.3, always lates nightly, as there are GT-N7100 - GT-I9100 - Nexus 4
not to the point
a) other than most other users i usually clean cache and dalvik cache as well before and after flashing the new rom and/or new nightly
and never encountrer any problems except those which everybody, using the same rom and nightly encounters.
b) whenever i flash an totally different rom and/or upgrade and/or downgrade to another level of android os, i.e. from 4.2.2 to 4.3, i perform
a clean install, including not only a factory reset, but as well a format sd-card, format cache and format system etc., again i cannot proof
which of these steps make a or the differnce but however, i never have problems others than thosw which everyone has with a version.
c) when using cusome kernels and due to the fact that some roms come with a kernel included, as well as with a custom recovery included,
it is strongly recommended not to forget to flas the kernel again after each flashing the new rom. one good example ist dorimanx kernel
for GT-I9100 which will not boot into recovery and reluctantly boot at all after a new flash of a pac nightly without reflashing the kernel.
d) try to fix permissions on reboot instead of doing it from recovery. one reason is that not every recovery has this option and further i
found that when fixing permissions before the first boot after flashing a new rom, there might be bootloops, albeit i cannot explain exactly
why that should, but however, sometimes it's better to be on the safe sid.
e) try to run whether the lastes version of custom recovery for your device, and or the use the included custom recovery of the rom or the
kernel. this again is one thing that can help to avoid some unexpected and hard to explain bootproblems and/or fc's etc.
hope that i could give you some new ideas how to avoid trouble while using custom roms and other hacks
magnamentis said:
try to fix permissions on reboot instead of doing it from recovery. one reason is that not every recovery has this option and further i
found that when fixing permissions before the first boot after flashing a new rom, there might be bootloops, albeit i cannot explain exactly
Click to expand...
Click to collapse
Fix permissions was removed because its useless. All permissions are set when flashing by way of updater-script. Fix permissions via recovery "guesses" the permissions which causes issues...
If permissions need fixing, then the updater-script is poor which means you should probably avoid flashing it.
Sent from my GT-I9300 using Tapatalk 4
rootSU said:
Fix permissions was removed because its useless. All permissions are set when flashing by way of updater-script. Fix permissions via recovery "guesses" the permissions which causes issues...
If permissions need fixing, then the updater-script is poor which means you should probably avoid flashing it.
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
thanks for the explanation which makes totally sense, so my feeling which i could not explain was right always better to learn exactly why than just guessing
no thanks button found in your post however, so i want to thank you this way.
regards
Hi!
I want to do a
COMPLETE REINSTALL
of my Neo V.
I use AOKP ROM.
What is the best way to start here?
1) using flashtool by DoomLord and flashing old stuff before doing a full wipe?
2) only full wipe via recovery and then install the ROM?
3) factory reset, then full wipe, then flash ROM?
Whatever.
I am overwhelmed of the possibilities in doing it. There are many ways, but I want to ensure that everything is set up correctly from the start.
All my data and intern ROM stuff is saved via Titanium.
So don't be shy to recommend the best and cleanest and deepest way to do this!
Thanks a bunch for your advices!
All the best
c1ph4 said:
Hi!
I want to do a
COMPLETE REINSTALL
of my Neo V.
I use AOKP ROM.
What is the best way to start here?
1) using flashtool by DoomLord and flashing old stuff before doing a full wipe?
2) only full wipe via recovery and then install the ROM?
3) factory reset, then full wipe, then flash ROM?
Whatever.
I am overwhelmed of the possibilities in doing it. There are many ways, but I want to ensure that everything is set up correctly from the start.
All my data and intern ROM stuff is saved via Titanium.
So don't be shy to recommend the best and cleanest and deepest way to do this!
Thanks a bunch for your advices!
All the best
Click to expand...
Click to collapse
if u r on AOKP & want a fresh install, then goto CWM & do a full wipe & flash the rom... done...
Samak46 said:
if u r on AOKP & want a fresh install, then goto CWM & do a full wipe & flash the rom... done...
Click to expand...
Click to collapse
This is the usual procedure when installing a (new) ROM.
The other day I saw something in Flashtool which said that my device would still be a ICS device. There was nothing mentioned that AOKP was already in use. Or a JB kernel. There was still a footprint from a ICS ROM I used ages ago. I want to change that.
This is my problem: I want the device to be recognized correctly everywhere.
So, the advice you gave me would be the deepest I can do for the device itself?
I think I did this one or two times, but these footprints from former ROMs and flashing stuff are still there.
Thanks in advance!
Flash stock firmware (.587)
Copy ROM and GAPPS on SD
Flash a kernel in fastboot
Go to recovery..
Full Wipe.. install..
it should be good..
Check in Flashtool once the mobile is settled down. it should recognise as 4.1.x or watever!!
[email protected] said:
Flash stock firmware (.587)
Copy ROM and GAPPS on SD
Flash a kernel in fastboot
Go to recovery..
Full Wipe.. install..
it should be good..
Check in Flashtool once the mobile is settled down. it should recognise as 4.1.x or watever!!
Click to expand...
Click to collapse
Thanks a bunch!
It is important to mention where to get this Stock ROM: http://forum.xda-developers.com/showthread.php?t=1678690
What I already got back to normal is the indication of Wifi: It never was blue and full but always grey.
I didn't check my version in Flashtool yet as I am still restoring my apps and settings.
Will report back if there are any issues or new information.
See you around.