CWM/TWRP backup and restore vs. kernel flashing - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

I'm a long time user of CWM on my SGS1 and, lately, of TWRP on my SGS3, but I never had to restore a backup created in either recovery.
Now, I'm looking forward to flashing ktoonsez's Sammy kernel on my rooted Bell LH1 ROM and there is one piece of warning that makes me a little unconfortable...
ktoonsez said:
WARNING: This kernel has updated WIFI and Bluetooth drivers. If you are going back to stock, you need to get those drivers back or those 2 devices will not work. Simply flashing a kernel will not do it unless it also flashs back those drivers (they are in "/system/lib/modules" folder).
Click to expand...
Click to collapse
Let's say I create a backup of my current config in TWRP, flash ktoonsez kernel and then restore my backup.
Will I restore the original kernel along with the rest (wifi and usb drivers included) or is the kernel not part of the backup ?
Thanks

HiKsFiles said:
I'm a long time user of CWM on my SGS1 and, lately, of TWRP on my SGS3, but I never had to restore a backup created in either recovery.
Now, I'm looking forward to flashing ktoonsez's Sammy kernel on my rooted Bell LH1 ROM and there is one piece of warning that makes me a little unconfortable...
:laugh:
Let's say I create a backup of my current config in TWRP, flash ktoonsez kernel and then restore my backup.
Will I restore the original kernel along with the rest (wifi and usb drivers included) or is the kernel not part of the backup ?
Thanks
Click to expand...
Click to collapse
I suggest you test it out for another type of kernel like flash two jb roms and flash a cm10 kernel and see if you still have the original kernel with the first rom just to test if it actully backups the kernel too.. i have TWRP too xD too bad i got my fone tooken away or id test this out my self :laugh:

nandroid backs up your kernel and drivers. So as long as you have a backup you should be fine

amzi said:
I suggest you test it out for another type of kernel like flash two jb roms and flash a cm10 kernel and see if you still have the original kernel with the first rom just to test if it actully backups the kernel too.. i have TWRP too xD too bad i got my fone tooken away or id test this out my self :laugh:
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Click to collapse
Dude, that's like going to New-York from Montréal but stopping by Los Angeles on your way.
Feasable... but it'll take you ages!

HiKsFiles said:
Dude, that's like going to New-York from Montréal but stopping by Los Angeles on your way.
Feasable... but it'll take you ages!
Click to expand...
Click to collapse
bro ur just lazy it doesnt take that long LOL

True, I am lazy by nature and I assume it pretty well!

Related

[Q] Kernels and restoring a nandroid backup

After flashing a kernel, they say to do a full wipe (and then reinstall the ROM?).
My question is whether after the wipe, can I restore a nandroid backup? Setting it up from scratch and just the way I like it is quite tedious if I were to do this each time, plus download the apps from the market etc. My arc is my main phone so I don't have the luxury of flashing ROMs and kernels all the time.
Do let me know if that's possible. If not, can you tell me how you guys do it?
My arc is running Stock ICS 4.0.4 with an unlocked bootloader.
I believe you got it all wrong.... you need to do a full wipe before installing a new ROM (to make sure it works properly and nothing is left from the old one).... not a kernel... You can flash kernels as often you want without any wipes. Just dont forget the WIFI-modules (only of needed by ther kernel).
xtacy! said:
My question is whether after the wipe, can I restore a nandroid backup?
Click to expand...
Click to collapse
Just think about it, it would be pointles to delete evrething and then restore it back..
P.S.: sh*t I pushed the wrong button and thanked you instead of quote....
yea..there is no point restoring the nand after flashing a kernel...full wipe and fresh installing rom is highly recommended..
Best way is to tryout a kernel..if everything is well and good then better stick to it.
afterall wat do u look in a kernel? OC,UV, good battery life and smooth UI..once you attain all these then stick to it..
btw i have tried many kernels this month without doing a full wipe..i never faced any problem as such..i just uninstall all OC, UV apps just to be safe
Thanks for the replies guys. And an extra thanks to Antochrist for his mistake. LOL!
Another reason for my question was because one of the kernel developers said to do a clean install.
Let's say I flash a kernel with additional wifi modules. Suppose I want to get back to stock kernel and its wifi modules, do I just flash the stock kernel or do I need to do anything extra to fix the wifi?
xtacy! said:
Let's say I flash a kernel with additional wifi modules. Suppose I want to get back to stock kernel and its wifi modules, do I just flash the stock kernel or do I need to do anything extra to fix the wifi?
Click to expand...
Click to collapse
yea u just need to flash the stock kernel as wifi modules are included in the stock kernel itself
xtacy! said:
Thanks for the replies guys. And an extra thanks to Antochrist for his mistake. LOL!
Another reason for my question was because one of the kernel developers said to do a clean install.
Let's say I flash a kernel with additional wifi modules. Suppose I want to get back to stock kernel and its wifi modules, do I just flash the stock kernel or do I need to do anything extra to fix the wifi?
Click to expand...
Click to collapse
I think clean install only needed for new rom, not new kernel
cmiiw
Sent from mobile
Similar issues
Happy new years everyone!
I am pretty new to using custom ROMS and kernels and have made a standard noob mistake
which was forgetting to back up all the original software (ROM, kernel, etc). I realized this quite later
and though I have found the original ROM for my GT-P5110 I seem to have trouble finding the stock Kernel
(the one it had when it left the factory; 4.0.4) I did a search and have found my search-fu to be weak.
Can anyone help me find the stock rom for the GT-P5110 (Galaxy note 2 10.1)?
And one more thing, should I get the Galaxy S3 LTE vs. LG Optimus G vs.your opinion?
(I am in South Korea btw) Is Korean version is any different or any harder to root or to
flash a custom ROM, anyone have any experience?
Many thanks
But I did not get the Right Answer...
arpith.fbi said:
yea u just need to flash the stock kernel as wifi modules are included in the stock kernel itself
Click to expand...
Click to collapse
Thanks for the info that WIFI modules are included in the kernel and no extra additions need to be made.. I Don't know abt it ..
NOW assuming u now a lot abt Linux/Android could you please answer this for me..
- Does Restoring NANDROID
- Restore 'Stock Kernel' along with 'RIL file', RAMDISK - INIT### n stuff​
Which Hyperion users need to fiddle with..
But kernel and ram disk are stored in the boot partition so does NANDROID back that up too ?
and Can you help me with RIL file related info..
Thanks
NANDroid only backs up ROM. It doesn't back up kernel. Kernel is always flashed externally, it's the same with all Android devices.
僕のLT18iから送られてきた

[Q] Download CM9 kernel?

Is there anywhere I can download the CM9 kernel or backup the current one? I want to try out different kernels. I like the CM9 kernel, but miss the tweaks like usb fast charge. I would prefer not to have to backup the whole rom as the method in case I have to restore it a week later rather then just re-flash back the kernel. Thanks !
frigidazzi said:
Is there anywhere I can download the CM9 kernel or backup the current one? I want to try out different kernels. I like the CM9 kernel, but miss the tweaks like usb fast charge. I would prefer not to have to backup the whole rom as the method in case I have to restore it a week later rather then just re-flash back the kernel. Thanks !
Click to expand...
Click to collapse
All you have to do is reflash the ROM to get back to the stock kernel, doesn't hurt since it's a no wipe flash.
You could also take the boot.img from the CM9 zip and flash that via fastboot.
Sweet. Thanks!
CMNein said:
All you have to do is reflash the ROM to get back to the stock kernel, doesn't hurt since it's a no wipe flash.
You could also take the boot.img from the CM9 zip and flash that via fastboot.
Click to expand...
Click to collapse

[Q] Confused On How To Install A Recovery

I have been looking around for about an hour or two trying to find a solid tutorial on how to install a custom recovery to install new Roms. I flashed my phone onto Virgin Mobile on FH13. It seems to me that there is more than meets the eye to installing a recovery on this phone. I really don't want to mess anything up at all. Could anyone guide me the right way as to how I can get CWM on my phone? I appreciate any help you can give me. Thanks!
Recovery is packed into the kernel on this phone. Flash a kernel tar through ODIN if you want, it will trigger the yellow triangle though. If your already rooted you could use Mobile ODIN. If you already have some form of custom recovery and are just trying to switch up you can flash the kernel zip in recovery.
rwilco has pretty much every kernel for every purpose but since your on stock you will either want a repacked stock or custom tw kernel - http://rwilco12.androidfilehost.com/?dir=Kernels/Recovery Kernels/ICS
If your unfamiliar then keep asking questions. Our phone has a bug in its eMMC firmware triggered during format operations on the stock kernel as of Android 4.0. The specifics are detailed but all you really need to know is grab a kernel with a safe recovery, or even going as far as AGAT's custom kernel which has more work around in place to prevent a factory reset or rom install from turning your phone into a super brick.
RainMotorsports said:
Recovery is packed into the kernel on this phone. Flash a kernel tar through ODIN if you want, it will trigger the yellow triangle though. If your already rooted you could use Mobile ODIN. If you already have some form of custom recovery and are just trying to switch up you can flash the kernel zip in recovery.
rwilco has pretty much every kernel for every purpose but since your on stock you will either want a repacked stock or custom tw kernel - http://rwilco12.androidfilehost.com/?dir=Kernels/Recovery Kernels/ICS
If your unfamiliar then keep asking questions. Our phone has a bug in its eMMC firmware triggered during format operations on the stock kernel as of Android 4.0. The specifics are detailed but all you really need to know is grab a kernel with a safe recovery, or even going as far as AGAT's custom kernel which has more work around in place to prevent a factory reset or rom install from turning your phone into a super brick.
Click to expand...
Click to collapse
Also new to the e4gt, im currently rooted on fh13.
say i want to flash paranoidandroid, which kernel (which includes recovery?) would you recommend?
also this is either flashed from odin (pc) or can be done through mobile odin?
then once kernel is flashed, i can then reboot into recovery, wipe and flash rom/gapps?
sorry for all the questions, just want to make sure!
bongzilla said:
Also new to the e4gt, im currently rooted on fh13.
say i want to flash paranoidandroid, which kernel (which includes recovery?) would you recommend?
also this is either flashed from odin (pc) or can be done through mobile odin?
then once kernel is flashed, i can then reboot into recovery, wipe and flash rom/gapps?
sorry for all the questions, just want to make sure!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1953783
RainMotorsports said:
Recovery is packed into the kernel on this phone. Flash a kernel tar through ODIN if you want, it will trigger the yellow triangle though. If your already rooted you could use Mobile ODIN. If you already have some form of custom recovery and are just trying to switch up you can flash the kernel zip in recovery.
rwilco has pretty much every kernel for every purpose but since your on stock you will either want a repacked stock or custom tw kernel - http://rwilco12.androidfilehost.com/?dir=Kernels/Recovery Kernels/ICS
If your unfamiliar then keep asking questions. Our phone has a bug in its eMMC firmware triggered during format operations on the stock kernel as of Android 4.0. The specifics are detailed but all you really need to know is grab a kernel with a safe recovery, or even going as far as AGAT's custom kernel which has more work around in place to prevent a factory reset or rom install from turning your phone into a super brick.
Click to expand...
Click to collapse
My phone already has root. Everything else is stock. 4.0.4, build FH13, with no custom recoveries.
I don't understand what you mean in your second paragraph with "repacked stock" or "custom tw kernel".
I am completely lost as to where I should be going. My plan is to install this rom: http://goo.im/devs/Shabbypenguin/E4GT-Nightlies
How would I go around to getting this on my phone?
Also, what about this rom: http://forum.xda-developers.com/showthread.php?t=1810315
I am not sure which rom runs the fastest and most efficient. There are so many kernels for so many things, I have absolutely no idea which kernel to flash and how to flash it.
EDIT: So I have done some more reading up and I THINK I can starting to understand some of it. I assume the steps are to:
1. Install Mobile Odin Lite on my phone.
2. Flash the EL26 kernel on Odin Lite. Link to kernel: http://forum.xda-developers.com/showthread.php?t=1662295 (first kernel on the page)
3. This part I am kinda lost. Not sure if that kernel installed a new recovery or not. I assume I just reboot and go into recovery.
4. Nandroid a backup of my ICS stock that is on now? Can I even go back to this stock backup after putting on a new Rom? Which kernel would I need to install backup of stock?
5. Wipe data, dalvic, and install new Rom using instruction it came with. My problem is I want to run this Rom: http://goo.im/devs/Shabbypenguin/E4GT-Nightlies and it has no instructions. I assume you just wipe data and dalvic?
6. flash Rom, then flash Gapp? It doesn't have a link for any of the Gapps, so either I have to find a link to download Gapp or that rom already comes with it? Not sure.
7. Reboot into new Rom? Not sure if I missed a step or not.
Another question I have is with the kernels. Can I just leave it on the EL26 kernel for daily use of the phone? Say I want to install maybe cm10 next, do I just keep it on EL26?
Sorry for the spam of questions. I like to be 100% certain.
Best bet if your trying to install CM9 is to go to the EL26 CWM kernel as all of the AOSP rom instructions dictate. Using the EL26 kernel means your phone will only boot to Download and Recovery as it will only boot gingerbread roms.
Download the nightly you want to the device and then flash the EL26 CWM kernel in Mobile ODIN. After its all over with you might need to battery pull if you messed up booting into recovery and then boot into recovery (power + vol up). Install the rom. Install gapps. Wipe cache/dalvik but as I will recommend below you should just backup everything and a full wipe.
You can nandroid if you want but it will be making a copy of the ICS rom you have with the EL26 kernel on it so it is literally a restore to the point your starting from not where you were just before that. Its still a good idea if your afraid of losing things. I would use Super Backup from the market to backup your Contacts, Call Logs and MMS. Wipe cache and dalvik and all that. But realisticly you should backup your apps and data if you have Titanium Backup and start fresh just factory reset after your on CM9. Restore your apps with data (no system data) after that. A clean install will present the least of issues, even the Samsung updates from one rom to another are not without issues.
You can not boot anything but gingerbread with EL26 and once you install a rom you will be on the kernel with that rom. So you will have a Linux 3 android kernel with cwm 6 if you go with a CM9 nightly. From there you can flash the next nightly or the next beta etc. Older stuff will not flash from your new setup as AOSP roms have switched to a new device name in the build.prop.
As far as gapps here it is - http://goo.im/gapps/gapps-ics-20120429-signed.zip and don't forget to put this on the device ahead of time or you will have to mount usb and transfer using the pc in recovery.
RainMotorsports said:
Best bet if your trying to install CM9 is to go to the EL26 CWM kernel as all of the AOSP rom instructions dictate. Using the EL26 kernel means your phone will only boot to Download and Recovery as it will only boot gingerbread roms.
Download the nightly you want to the device and then flash the EL26 CWM kernel in Mobile ODIN. After its all over with you might need to battery pull if you messed up booting into recovery and then boot into recovery (power + vol up). Install the rom. Install gapps. Wipe cache/dalvik but as I will recommend below you should just backup everything and a full wipe.
You can nandroid if you want but it will be making a copy of the ICS rom you have with the EL26 kernel on it so it is literally a restore to the point your starting from not where you were just before that. Its still a good idea if your afraid of losing things. I would use Super Backup from the market to backup your Contacts, Call Logs and MMS. Wipe cache and dalvik and all that. But realisticly you should backup your apps and data if you have Titanium Backup and start fresh just factory reset after your on CM9. Restore your apps with data (no system data) after that. A clean install will present the least of issues, even the Samsung updates from one rom to another are not without issues.
You can not boot anything but gingerbread with EL26 and once you install a rom you will be on the kernel with that rom. So you will have a Linux 3 android kernel with cwm 6 if you go with a CM9 nightly. From there you can flash the next nightly or the next beta etc. Older stuff will not flash from your new setup as AOSP roms have switched to a new device name in the build.prop.
As far as gapps here it is - http://goo.im/gapps/gapps-ics-20120429-signed.zip and don't forget to put this on the device ahead of time or you will have to mount usb and transfer using the pc in recovery.
Click to expand...
Click to collapse
Ah, I read it twice and now it makes more sense. I have a pretty good idea of what to do now.
Put rom and gapp on phone, install EL26, backup, full wipe, flash rom and gapp, rom will install new kernel for me, then just reboot.
Last question, I just want to make sure. What exactly is a full wipe on this phone. I have done plenty of full wipes on the evo 4g. I am just asking because I hear some people have problems when they do a full wipe.
I really appreciate your help. Thank you!
Sorry if I jumbled everything together in my post by the I was running out the door. But this Hurricanne has stopped that and I regret not taking my time.
Well what I mean is a factory reset which formats /Cache and /Data. When you install the rom its going to format /System prior to writing the new firmware/rom. /Data has all your user apps, their data and your information etc. This does not wipe the Internal SD or the External SD though at times a line saying it was does come up in CWM.
Just don't do a Factory reset on the stock kernel you are on now, its fine on EL26 its fine on the kernels that come with the CM9 nightlies. Super Backup apparently does app's now too. I have never used it since I have Titanium Backup Pro but figured its also worth mentioning.
A note on turning back. As I said before if you flash the EL26 CWM kernel you wont be able to boot the ICS rom installed on the phone. At that point to go back instead of forward you can flash the FH13 kernel in desktop ODIN or the zip in CWM and you will have the FH13 kernel instead of EL26 and be back where you were. But once you flash the EL26 CWM kernel your goal at that point is flashing your rom of choice in CWM and not things like booting the phone.
You should be "okay" coming from a dirty install just wiping cache. But you may never know if a problem your having is the rom or some left over data unless you go clean and factory reset. Its a choice and its also a choice you can make later as you can always reset later. I would back up anything important first before doing any of this. Not so much a worry about bricking, as just about any normal situation will be recoverable, but more so to the point of if you have to wipe the phone and start from scratch.
RainMotorsports said:
Sorry if I jumbled everything together in my post by the I was running out the door. But this Hurricanne has stopped that and I regret not taking my time.
Well what I mean is a factory reset which formats /Cache and /Data. When you install the rom its going to format /System prior to writing the new firmware/rom. /Data has all your user apps, their data and your information etc. This does not wipe the Internal SD or the External SD though at times a line saying it was does come up in CWM.
Just don't do a Factory reset on the stock kernel you are on now, its fine on EL26 its fine on the kernels that come with the CM9 nightlies. Super Backup apparently does app's now too. I have never used it since I have Titanium Backup Pro but figured its also worth mentioning.
A note on turning back. As I said before if you flash the EL26 CWM kernel you wont be able to boot the ICS rom installed on the phone. At that point to go back instead of forward you can flash the FH13 kernel in desktop ODIN or the zip in CWM and you will have the FH13 kernel instead of EL26 and be back where you were. But once you flash the EL26 CWM kernel your goal at that point is flashing your rom of choice in CWM and not things like booting the phone.
You should be "okay" coming from a dirty install just wiping cache. But you may never know if a problem your having is the rom or some left over data unless you go clean and factory reset. Its a choice and its also a choice you can make later as you can always reset later. I would back up anything important first before doing any of this. Not so much a worry about bricking, as just about any normal situation will be recoverable, but more so to the point of if you have to wipe the phone and start from scratch.
Click to expand...
Click to collapse
That clarified a lot, thanks.
So I did it all. I did a factory reset from the new kernel. did dalvic also. I installed the new rom and gapp. Problem is that once I reboot, it shows the Galaxy SII screen, then goes into a black screen. I can't turn it back on again, so I remove the battery and it can restart. Does the same thing though. I followed your instruction and http://e4gtcm.blogspot.com/p/cm9-install-guide.html
What did I do wrong? I am worried I messed up my phone completely.
EDIT: So I went back into recovery and it was now a new version of CWM. I did everything over again; factory reset, cache, dalvic, and it is doing the same thing. Boots up "Galaxy SII" screen, then a black screen. It seems to still be on in the black screen seeing that it doesn't "turn" on again. I can hold if for 15 second or so for it to reset and does the same thing. Why is there a black screen?
Sorry for not checking back. Your probably freaking right now lol but relax your at a good point everything is fine.
Either a bad download or the nightly you went with happens to be a baddy. I am still on 10/20 I was gonna flash 10/28 today but the weather is screwing with me. goo.im seems pretty slow today.
Download another, battery pull and hold vol up + power until it hits recovery then go into mounts and mount usb storage hook a usb cable to the pc and copy over another build. I would say try 10/20 just because it works pretty good but that won't stop another bad download in which case you have to try try again.
Worst case from here we can just odin you back to stock rooted FH13 or your choice of other. Your phone is fine from what you have told me so far. I can upload one of the builds I have if you think ti would help any.
RainMotorsports said:
Sorry for not checking back. Your probably freaking right now lol but relax your at a good point everything is fine.
Either a bad download or the nightly you went with happens to be a baddy. I am still on 10/20 I was gonna flash 10/28 today but the weather is screwing with me.
Download another, battery pull and hold vol up + power until it hits recovery then go into mounts and mount usb storage hook a usb cable to the pc and copy over another build. I would say try 10/20 just because it works pretty good but that won't stop another bad download in which case you have to try try again.
Worst case from here we can just odin you back to stock rooted FH13 or your choice of other. Your phone is fine from what you have told me so far.
Click to expand...
Click to collapse
Phew! I was pretty positive that I could still get back to something working, just my paranoid self was getting tense. I got 10/28. I guess I will do 10/20. Do you know what the other updates have? I would hate to install something that isn't working its most efficient.
Again, thank you so much. You were of great help! Good luck with the weather issue. Hope you're safe!
I stopped following chris's experimentals so i am not sure what the most recent focuses have been. The Nightlies have whatever code was commited. They are built automatically and can range from very stable to not booting at all. I dont have any of the links on me but someone can get it to you. Reading commits is not exactly 100% user friendly especially if your not a developer. But they often have clues. I would follow the CM9 Beta thread and the CM9 User Support Threads - http://forum.xda-developers.com/showthread.php?t=1874374 and http://forum.xda-developers.com/showthread.php?t=1720771
I used to DL nightlies from work over 3g or 4g all the time and would get a bad dl and end up in situations where even my experienced self felt like I couldn't fix it till I got home and always got the phone running within an hour without the assistance of a near by pc.
I am uploading 10/20 to my server just in case its in Chicago so if your away from the weather it should be unaffected for the most part. Glad its not in NY anymore.
EDIT - http://android.rainmotorsports.net/10-20-CM9-d710-KANG.zip the md5 hash as I have it is 66246125ACDBEF2EBF2144E0CBFEBB7B and it matches the md5 listed on goo.im
RainMotorsports said:
I stopped following chris's experimentals so i am not sure what the most recent focuses have been. The Nightlies have whatever code was commited. They are built automatically and can range from very stable to not booting at all. I dont have any of the links on me but someone can get it to you. Reading commits is not exactly 100% user friendly especially if your not a developer. But they often have clues. I would follow the CM9 Beta thread and the CM9 User Support Threads - http://forum.xda-developers.com/showthread.php?t=1874374 and http://forum.xda-developers.com/showthread.php?t=1720771
I used to DL nightlies from work over 3g or 4g all the time and would get a bad dl and end up in situations where even my experienced self felt like I couldn't fix it till I got home and always got the phone running within an hour without the assistance of a near by pc.
I am uploading 10/20 to my server just in case its in Chicago so if your away from the weather it should be unaffected for the most part. Glad its not in NY anymore.
EDIT - http://android.rainmotorsports.net/10-20-CM9-d710-KANG.zip the md5 hash as I have it is 66246125ACDBEF2EBF2144E0CBFEBB7B and it matches the md5 listed on goo.im
Click to expand...
Click to collapse
I just got it downloaded. It is now up and running perfectly. I appreciate all your help man, thanks a bunch. I live in Washington state. So the weather wont affect me.
Good evening all. I hope this is the right forum to post my question about recovery for my e4g touch. I recently rooted my phone and my phone is currently on the fi27 build. Is there a recovery i can put on there now to go ahead and start flashing ruins, or will i have to wait for qbkng77 to post his video on you tube on putting cwm recovery on fi27 rooted e4g touch? Thanks in advance for the help!
Sent from my SPH-D710 using xda app-developers app
n1stunna84 said:
Good evening all. I hope this is the right forum to post my question about recovery for my e4g touch. I recently rooted my phone and my phone is currently on the fi27 build. Is there a recovery i can put on there now to go ahead and start flashing ruins, or will i have to wait for qbkng77 to post his video on you tube on putting cwm recovery on fi27 rooted e4g touch? Thanks in advance for the help!
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
I assume you do the same thing as I did. Get the EL26 kernel and flash it with Mobile Odin. I would wait on someone else to confirm that though.
Another really quick question. I want to overclock my phone. I tried using setcpu and the overclocker it came with. It only goes to a max of 1200 but I know it can go higher. I am guessing I need another kernel. What kernel can I use?
joshlete said:
Another really quick question. I want to overclock my phone. I tried using setcpu and the overclocker it came with. It only goes to a max of 1200 but I know it can go higher. I am guessing I need another kernel. What kernel can I use?
Click to expand...
Click to collapse
You either need a kernel with built in over clock support(you'd see the CPU slider go up to 1400-1600 automatically if it was). Or a kernel that supports over locking in tegrak, which you "load over clock module" with in tegrak.
Both Kuban kernel and some of Agats kernels have built in support, mine you need to use tegrak as I have not added built in yet
You can get them all in rwilco's (awesome) kernel repository stickied in development
Sent from my SPH-D710 using xda premium

Query about updating kernel

I have a GSM Galaxy Nexus and I am currently using 4.2.2 Cyanogen Mod released in April 2013.
It has the following Kernel
3.0.31-cyanogenmod-g64e9296
I have flashed ROMs many times mostly CM ROMS.
I want to try changing kernel to improve battery life and check what kernel changes actually is all about.
Since I havent done it earlier, I want answers to following questions:
1) Is it safe to change my kernel to another one? I want to install http://forum.xda-developers.com/showthread.php?t=2115590 or maybe someone can tell me a better one with focus on improved battery life.
2) What if the above kernel screws up? can I recover the old kernel back?
3) Is kernel flashing Permanent or any ROM I flash will have it's own kernel?
4) Just in case my kernel screws up, I have a full TWRP backup as well, would flashing that change my current kernel to old one that came with cyanogenmod last ROM?
Thanks.
You can pretty much flash any kernel you want. Just make sure the kernel is made for the version of Android you are on. If something goes wrong, you should be able to flash your ROM again and get back to normal. ROMs come with their own kernels so every time you flash a ROM, you will get the kernel that comes with it. But the best way to recover from a screw up is to restore a nandroid from your recovery.
jsgraphicart said:
You can pretty much flash any kernel you want. Just make sure the kernel is made for the version of Android you are on. If something goes wrong, you should be able to flash your ROM again and get back to normal. ROMs come with their own kernels so every time you flash a ROM, you will get the kernel that comes with it. But the best way to recover from a screw up is to restore a nandroid from your recovery.
Click to expand...
Click to collapse
Advanced restore should work, no need to restore the whole thing, just system.img and boot.img should do the trick.
Sent from my Nexus

[Q] How to choose a ROM

I just got my replacement HTC One V CDMA unlocked and rooted. I want to overclock and understand I need a custom ROM to do so. My first HTC One V I bricked trying to flash rhythmicrom. I unlocked, rooted, backed up using TWM. Each time I tried to flash the new ROM it would get stuck on the HTC screen with the red writing talking about developmental purposes, etc. Each time it would hang on that screen I would simply do a recovery to the back up file and everything would go back to normal. The last time I tried to flash it hung up, and when I tried to go back it would not go back. I am not sure why Rhythmicrom would not work. Is there another one I should try? Does it matter if my HTC one V is a newer version, etc? I just need a basic ROM with the ability to overclock. MMS is a necessity and the camera would be nice. Thanks for any help you can give me.
Did you make sure to flash the appropriate kernel via fastboot aftter flashing the ROM, because if not that could be the cause of your phone failing to boot. As for ROM's, well I guess that depends on whether you have a PrimoU or a PrimoC, I personally use SHPONGLE for the PrimoU, but I can't comment on the PrimoC as I do not own one
zzjoshzz said:
Did you make sure to flash the appropriate kernel via fastboot aftter flashing the ROM, because if not that could be the cause of your phone failing to boot. As for ROM's, well I guess that depends on whether you have a PrimoU or a PrimoC, I personally use SHPONGLE for the PrimoU, but I can't comment on the PrimoC as I do not own one
Click to expand...
Click to collapse
Thank you for the reply. Yes I used the kernel (boot.img) that was included with the rythmicrom rom. I have a PrimoC. I was reading and see that my problem might be caused due to maybe having a newer version of the phone and the hboot or radio might be different?
tackj said:
Thank you for the reply. Yes I used the kernel (boot.img) that was included with the rythmicrom rom. I have a PrimoC. I was reading and see that my problem might be caused due to maybe having a newer version of the phone and the hboot or radio might be different?
Click to expand...
Click to collapse
Hey, so some kernels support the newer radio and some do not. If you are on the newer radio: Baseband version 1.00.00.0928 (check in about phone in settings) then you have to use a kernel that supports the OTA, such as for sense use the FOTA kernel posted under the cdma development thread, for android 4.1 use the kernel I made that can be found in the slim bean rom thread by curtis, and for 4.2 rythmic rom's kernel should work just fine. If not, try the codefirex kernel from simon's rom (original dev. thread) but you'll lose functionality of the camera as it is an ion kernel.
I hope this helps, quote me in the reply if you have more questions, otherwise I may forget to check back here.
why u no flash kernel omg! just read the trouble shooting section
lilrob1213 said:
Hey, so some kernels support the newer radio and some do not. If you are on the newer radio: Baseband version 1.00.00.0928 (check in about phone in settings) then you have to use a kernel that supports the OTA, such as for sense use the FOTA kernel posted under the cdma development thread, for android 4.1 use the kernel I made that can be found in the slim bean rom thread by curtis, and for 4.2 rythmic rom's kernel should work just fine. If not, try the codefirex kernel from simon's rom (original dev. thread) but you'll lose functionality of the camera as it is an ion kernel.
I hope this helps, quote me in the reply if you have more questions, otherwise I may forget to check back here.
Click to expand...
Click to collapse
Thank you very much for you help. I checked my radio and it is 1.00.00.0928. Is this the reason why the rythmicrom kernel would not work? So you recommend using the FOTA kernel with which ROM? Sorry for the dumb questions. I tried my best to read everything I could before asking for help. I just don't want to brick my replacement phone. I am not sue they will be as understanding as they were the first time.
tackj said:
Thank you very much for you help. I checked my radio and it is 1.00.00.0928. Is this the reason why the rythmicrom kernel would not work? So you recommend using the FOTA kernel with which ROM? Sorry for the dumb questions. I tried my best to read everything I could before asking for help. I just don't want to brick my replacement phone. I am not sue they will be as understanding as they were the first time.
Click to expand...
Click to collapse
well it shouldn't have been the reason because if you type "fastboot flash boot boot.img" in command line for the kernel you want to flash then it should flash correctly and rythmic rom's kernel has supported new radio since the beginning pretty much. Unless you have a really old version or something. The FOTA kernel is for sense roms or cm9 (which is based on android 4.0 ics). I really like and very much recommend MyOneV rom that curiousnoob has ported under the cdma dev. thread. It's fast, smooth, and has the least amount of lag compared to any other sense rom that I've tried. It's my daily and go-to rom!
You shouldn't brick your phone as long as you fastboot flash the correct kernel (for primoc/cdma), even if you end up in a bootloop you can hold power button and get back to bootloader to flash a new rom or restore a backup
lilrob1213 said:
well it shouldn't have been the reason because if you type "fastboot flash boot boot.img" in command line for the kernel you want to flash then it should flash correctly and rythmic rom's kernel has supported new radio since the beginning pretty much. Unless you have a really old version or something. The FOTA kernel is for sense roms or cm9 (which is based on android 4.0 ics). I really like and very much recommend MyOneV rom that curiousnoob has ported under the cdma dev. thread. It's fast, smooth, and has the least amount of lag compared to any other sense rom that I've tried. It's my daily and go-to rom!
You shouldn't brick your phone as long as you fastboot flash the correct kernel (for primoc/cdma), even if you end up in a bootloop you can hold power button and get back to bootloader to flash a new rom or restore a backup
Click to expand...
Click to collapse
Thanks for the information. Is it necessary to wipe the sd card before installing the new ROM? This is how I bricked my last one. I read somewhere that I needed to do a full wipe including the sd card. The sd card is where my recovery was and when I wiped it I didn't have anything to recover to. I tried RUU and that did not work.
So I think I might do this kernel [KERNEL][VM/PRIMOC][ICS:Sense] FOTA-Compatible Sick Kernel
With this ROM: myOneV 9.5+CDMA
Does this look ok?
tackj said:
Thanks for the information. Is it necessary to wipe the sd card before installing the new ROM? This is how I bricked my last one. I read somewhere that I needed to do a full wipe including the sd card. The sd card is where my recovery was and when I wiped it I didn't have anything to recover to. I tried RUU and that did not work.
So I think I might do this kernel [KERNEL][VM/PRIMOC][ICS:Sense] FOTA-Compatible Sick Kernel
With this ROM: myOneV 9.5+CDMA
Does this look ok?
Click to expand...
Click to collapse
It isn't necessary to wipe sd card, although if you get any weird bugs that no one else has reported (read threads) then yeah, I'd wipe sd card. In fact, I do actually wipe everything (except sd-ext) from twrp 2.6.1. But before I wipe I mount usb to my computer and copy over the twrp folder with my backup and any pictures I wanna save. Then, wipe everything including sd card (although not necessary I like to do it) and then mount usb again and copy the files I need (rom.zip and twrp folder). But to do a full wipe technically it's just wiping data, cache, dalvik cache, and system.
RUU will not work if you are on the newer hboot version (forgot the number but it's around here which is new vs old).
that combination works for me (I'm on new hboot and radio) so should work fine! btw that's the rom and kernel I mentioned earlier idk if you caught that or not
lilrob1213 said:
It isn't necessary to wipe sd card, although if you get any weird bugs that no one else has reported (read threads) then yeah, I'd wipe sd card. In fact, I do actually wipe everything (except sd-ext) from twrp 2.6.1. But before I wipe I mount usb to my computer and copy over the twrp folder with my backup and any pictures I wanna save. Then, wipe everything including sd card (although not necessary I like to do it) and then mount usb again and copy the files I need (rom.zip and twrp folder). But to do a full wipe technically it's just wiping data, cache, dalvik cache, and system.
RUU will not work if you are on the newer hboot version (forgot the number but it's around here which is new vs old).
that combination works for me (I'm on new hboot and radio) so should work fine! btw that's the rom and kernel I mentioned earlier idk if you caught that or not
Click to expand...
Click to collapse
Cool thank you. Yes I did catch that I just wanted to confirm that was the one you are talking about. I went to download that rom and it said it was not available any longer.
tackj said:
Cool thank you. Yes I did catch that I just wanted to confirm that was the one you are talking about. I went to download that rom and it said it was not available any longer.
Click to expand...
Click to collapse
oh right... curiousnoob is revamping it to make it better, you can either be patient or I can upload you an older version give me a second
here: https://docs.google.com/file/d/0By_o-NyPojUXNTdna3p5bGdSNVU/edit?usp=sharing it's from 09/02/2013 but it's the best I think so far... next update should be awesome-er! haha
lilrob1213 said:
oh right... curiousnoob is revamping it to make it better, you can either be patient or I can upload you an older version give me a second
here: https://docs.google.com/file/d/0By_o-NyPojUXNTdna3p5bGdSNVU/edit?usp=sharing it's from 09/02/2013 but it's the best I think so far... next update should be awesome-er! haha
Click to expand...
Click to collapse
Thank you for all of your help! Will this ROM work with the stock kernel? Just wondering. I would like to overclock so i will be flashing the sick kernel, but I was just curious. Thank you again.
tackj said:
Thank you for all of your help! Will this ROM work with the stock kernel? Just wondering. I would like to overclock so i will be flashing the sick kernel, but I was just curious. Thank you again.
Click to expand...
Click to collapse
kinda... but with stock kernel wifi didn't work... however fota kernel works so great with overclock that there's no need for stock kernel and it's not a problem, I'm happy to help
lilrob1213 said:
kinda... but with stock kernel wifi didn't work... however fota kernel works so great with overclock that there's no need for stock kernel and it's not a problem, I'm happy to help
Click to expand...
Click to collapse
Thank you for the link! I downloaded and got the ROM working now with the stock kernel. Now I am going to try and flash the sick kernel. Just to confirm, this is the one I need:
http://forum.xda-developers.com/showthread.php?t=2261819
I am going to put it in my fastboot folder, rename it boot.img and then flash it using cmd.
Does this sound right?
Also, just an FYI...I received a PM from Curiousn00b stating that the newest version is now available.
tackj said:
Thank you for the link! I downloaded and got the ROM working now with the stock kernel. Now I am going to try and flash the sick kernel. Just to confirm, this is the one I need:
http://forum.xda-developers.com/showthread.php?t=2261819
I am going to put it in my fastboot folder, rename it boot.img and then flash it using cmd.
Does this sound right?
Also, just an FYI...I received a PM from Curiousn00b stating that the newest version is now available.
Click to expand...
Click to collapse
Yup sounds flawless to me! Enjoy it! and thanks for the headsup I will probably download that and test myself
lilrob1213 said:
Yup sounds flawless to me! Enjoy it! and thanks for the headsup I will probably download that and test myself
Click to expand...
Click to collapse
Hey, I got the kernel to work! Now my wifi is operational. Now that the new version is available, do I dare ask how to go about updating? Is it just the same process? Thanks!
tackj said:
Hey, I got the kernel to work! Now my wifi is operational. Now that the new version is available, do I dare ask how to go about updating? Is it just the same process? Thanks!
Click to expand...
Click to collapse
You flashed the fota sick kernel? Well, you can update by just wiping dalvik and cache and flashing the new rom, but it's a full wipe (same process as before) is always recommended over the previous "update"
lilrob1213 said:
You flashed the fota sick kernel? Well, you can update by just wiping dalvik and cache and flashing the new rom, but it's a full wipe (same process as before) is always recommended over the previous "update"
Click to expand...
Click to collapse
Yes, I was able to flash the FOTA sick kernel. I have it set at 1.709 GHz max and 245 mhz min. with the I/O scheduler on noop. I put the governor on "performance" and did a benchmark test with antutu. My score was 7069 which didn't look all that great compared to the others. Does this sound about right? I was also only getting 6.2 fps on the 3D testing.
tackj said:
Yes, I was able to flash the FOTA sick kernel. I have it set at 1.709 GHz max and 245 mhz min. with the I/O scheduler on noop. I put the governor on "performance" and did a benchmark test with antutu. My score was 7069 which didn't look all that great compared to the others. Does this sound about right? I was also only getting 6.2 fps on the 3D testing.
Click to expand...
Click to collapse
hmmm... I have no idea... I've never really messed with benchmarks before, don't think they matter much, I'm happy just having a lag-free phone btw for typical use, I'm sure you know, performance gov. will kill your battery fairly quickly, so I usually use [email protected]$$v2 gov. or lionheart, but usually the first
lilrob1213 said:
hmmm... I have no idea... I've never really messed with benchmarks before, don't think they matter much, I'm happy just having a lag-free phone btw for typical use, I'm sure you know, performance gov. will kill your battery fairly quickly, so I usually use [email protected]$$v2 gov. or lionheart, but usually the first
Click to expand...
Click to collapse
You are right, the phone is more snappy for sure. What GHz do you use for everyday? I was using [email protected]$$v2 gov but put it on performance just during the test. I also have buzzlauncher as my launcher so I am not sure if that is taking away from the performance, but it looks nice. I am just happy that it is working, so again thanks for your help.

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