Custom kernel questions... - Droid Incredible Q&A, Help & Troubleshooting

Just two quick questions...
1. I'm running stock 2.2, rooted. Best kernel for battery life is..?
2. If I don't like the kernels I flash, how easy is it to go back to stock kernel?
Thanks.
Sent from my ADR6300 using XDA App

nanroid before..and if you don't like a kernel. flash the old nanroid. Done. ALWAYS NANDROID.

ROM Manager
There are stock kernels available for d/l in ROM Manager.
Recommend d/l one (or several you want to try) into a folder on SD, flash them to test drive until you find one you like.
Backup current (working) setup in event you run aground.

Thanks! I figured nandroid, but didn't know if it would totally revert back to old everything. Appreciation!

Related

Stock Kernel Backup

So again, sorry for the n00bness but I am learning
How do I backup my stock kernel before I flash a new one like Hydra or King? I've been searching for a while and can't find instructions...
thanks in advance!
...
I believe nandroid backs up the kernel BUT
You can use ROMMANAGER and under Virtuous, you should be able to find the stock kernel, should you need to replace it.
Ahhhh... Awesome. Didn't know that. thanks! And I can flash a new kernel using ROM manager as well, right? Just point to the zip and go? Do a back up of course
Stevez48 said:
Ahhhh... Awesome. Didn't know that. thanks! And I can flash a new kernel using ROM manager as well, right? Just point to the zip and go? Do a back up of course
Click to expand...
Click to collapse
Yes, I have seen that when you install a ROM, customize it, install a kernel, do a backup, when you restore it does restore with the kernel you backed it up with when the backup was done. You should be good with flashing the kernel through Recovery.
Always good to keep backups, as after a ROM install I backup right way, then customize the screens/icons the way I like, back up again, and so on...
Cool, thanks for the help and guidance all... <Cheers>

Switching roms

Is there an easy way to switch between roms on my evo? There is two roms I like and would like to hop back and fourth between them...but I may can only flash one at a time...any ideas? I think I saw a program called rom manager? Maybe that will allow me to do that?
Thanks!
ROM Manager, it is. A blessing.
Sent from my PC36100 using XDA Premium App
You could use rom manager. Backup the roms you want to use and when you want to switch use the restore option in rom manager.
yes. use nandroid back-up and easily flash between whatever it is you wish.
wether it be clockwork mod or amon ra!
K this might be a stupid question, but with Rom manager you can easily switch back and forth between roms, i understand that fact, but can you flash files with Rom manager? I usually have to reboot into recovery and then flash a certain file and reboot.
I just bought clockwork premium! WOOHOO!
Right now I am running a sense rom...lets say I get rom manager to install Cyanogen rom...will it erase all my apps ect? Or when I switch between the roms will it save everything as is?
THANKS!
You wouldn't want to just keep flashing the ROMs over and over, you would want to create nandroid backups of each and then just restore which ever one you are in the mood for. You can do this with Rom Manager or Amon Ra. That way, when you switch, it will restore with all your apps and data that were on the phone when you created the backup.
you can use rom manager to do all that stuff, but i definitly reccommend booting into recovery, doing a backup of the roms you like, then when you want to switch roms, boot into recovery again, and just use the restore feature, this way u can switch between to two roms without have to reflash and reset them up, all ur doing is restoring the backup
Use Titanium back up for ur apps then back up ur ROM via ROM Manager which will bring you into recovery and do the rest. So now u got ur apps backed up for any ROM u decide to use.
Sent from my PC36100 using XDA Premium App

[Q] A really quick question

Although i went through a lot of threads, i think i am still not sure and would need a noob type simple answer to this:
I have CWM installed and rooted. I performed nandroid backup of the current state of my phone.
Now i want to try all the different ROMS available and i see some are just ROMS and some include Kernels. So if i install ROM and move to another and at the end decide that my current stock ROM is better for me. Will i be able to restore it from the nandroid backup without any issue. Thanks.
Yes, or you could just Odin back to stock. (You could flash the stock rom justblike any other rom)
Sent from my SGH-T989 using XDA App
Thanks, that removes my doubt.
and if you want to go back and forth between different ROMs you can just backup and restore your Nandroid Backup
i've several copies of Nandroid sitting in my SD card, in case i feel like using another ROM for a change
it's great for times when you are trying to fix or troubleshoot a bug, and you wonder if it's a phone hardware problem or software
so by quickly restoring another ROM, you can rule out that problem very fast and efficiently
i'll at the very least always carry a STOCK Tmo/Telus backup, and my in use Backup, and then the next favourite ROM flavour backup

Coming from E3D... Questions!

I know a lot of people are coming from the EVO 3D...
Anyway i have a few question becuase im reading stuff about flashing issues...
I was about to flash a ICS ROM(Paranoid or CM9) and i read that i have to be carefull beacuse if i want to go back Nandroids will not work?
Well how do i make a Nandroid that works? I read that the only way to go back is flashing Stock via Odin(Im i wrong?)
I just finish the rooting process and im ready to install ICS ROM.
In the evo way, only thing i need it to do was nandroid, wipe, install from zip, DONE.
Thanks guys!
rockypr said:
I know a lot of people are coming from the EVO 3D...
Anyway i have a few question becuase im reading stuff about flashing issues...
I was about to flash a ICS ROM(Paranoid or CM9) and i read that i have to be carefull beacuse if i want to go back Nandroids will not work?
Well how do i make a Nandroid that works? I read that the only way to go back is flashing Stock via Odin(Im i wrong?)
I just finish the rooting process and im ready to install ICS ROM.
In the evo way, only thing i need it to do was nandroid, wipe, install from zip, DONE.
Thanks guys!
Click to expand...
Click to collapse
Basically make a nandroid with GB recovery the flash ics. If you want to restore Odin GB rom then nandroid restore.
Every rom should have instructions and as long as they are followed you should be safe.
Look up sfhub (I think) and agats custom recovery threads for more info.
Happy independence day!
Sent from my SPH-D710 using Tapatalk 2
rockypr said:
I know a lot of people are coming from the EVO 3D...
Anyway i have a few question becuase im reading stuff about flashing issues...
I was about to flash a ICS ROM(Paranoid or CM9) and i read that i have to be carefull beacuse if i want to go back Nandroids will not work?
Well how do i make a Nandroid that works? I read that the only way to go back is flashing Stock via Odin(Im i wrong?)
I just finish the rooting process and im ready to install ICS ROM.
In the evo way, only thing i need it to do was nandroid, wipe, install from zip, DONE.
Thanks guys!
Click to expand...
Click to collapse
Nandroids are perfectly safe, the only time when they're not safe, is when you make/restore from one on ICS.
The problem with all these ICS leaks, is a bug plaguing the emmc, which I believe that some methods of using ICS recoveries makes it wipe or something. Point is, it causes a brick. Here is the method that I use when flashing ICS, which works for most ICS ROMs, as most ICS ROMs need an EL26/EL29 framework. Pretty sure Paranoidandroid recommends this method, too.
Download these drivers
Download this: OC ODIN File for EL26 and this: E4GT Root Utility
Using Titanium Backup, make a backup of all your stuff, or use your preferred back-upper, just not nandroid. I recommend buying the Pro version, because it will save you so many times, and the dev is great. It's a little expensive though for an app.
OC Odin back to EL26. The good thing about this is, the process is straight forward, and doesn't add to your flash counter, and does not yellow triangle either.
Open up e4gtauto-sfx.exe, option C, then I. This gives you CWM, And just in case, I do not recommend using other than standard CWM to flash ICS roms. but that's me.
When your phone reboots, it should have CWM, and be rooted, just load up the flashing files onto your sd card, load up CWM, do 1 system data wipe, and flash the files in the order they have to be flashed.
Also, really important, DO NOT DIRECTLY RESTORE FROM A NANDROID You will most likely cause a brick if you do.
If you want to go back to GB, you have to Odin back to GB, and THEN you can perform the Nandroid Restore.
F3L1XZS said:
Nandroids are perfectly safe, the only time when they're not safe, is when you make/restore from one on ICS.
The problem with all these ICS leaks, is a bug plaguing the emmc, which I believe that some methods of using ICS recoveries makes it wipe or something. Point is, it causes a brick. Here is the method that I use when flashing ICS, which works for most ICS ROMs, as most ICS ROMs need an EL26/EL29 framework. Pretty sure Paranoidandroid recommends this method, too.
Download these drivers
Download this: OC ODIN File for EL26 and this: E4GT Root Utility
Using Titanium Backup, make a backup of all your stuff, or use your preferred back-upper, just not nandroid. I recommend buying the Pro version, because it will save you so many times, and the dev is great. It's a little expensive though for an app.
OC Odin back to EL26. The good thing about this is, the process is straight forward, and doesn't add to your flash counter, and does not yellow triangle either.
Open up e4gtauto-sfx.exe, option C, then I. This gives you CWM, And just in case, I do not recommend using other than standard CWM to flash ICS roms. but that's me.
When your phone reboots, it should have CWM, and be rooted, just load up the flashing files onto your sd card, load up CWM, do 1 system data wipe, and flash the files in the order they have to be flashed.
Also, really important, DO NOT DIRECTLY RESTORE FROM A NANDROID You will most likely cause a brick if you do.
If you want to go back to GB, you have to Odin back to GB, and THEN you can perform the Nandroid Restore.
Click to expand...
Click to collapse
Great info THANKS!!!!...
Also there is no problem to flash that EL26 file? when my stock is el29?
rockypr said:
Great info THANKS!!!!...
Also there is no problem to flash that EL26 file? when my stock is el29?
Click to expand...
Click to collapse
For OC ODIN, you don't have to worry about flashing, just plug your phone into the computer once you have the program running, an the drivers, and you'll be fine.
And yeah, you can go back using ODIN.
You just shouldn't use CWM to flash an older version of something if you're on the newer version.
So if install ICS and I want to return to GB the safe thing to do is run Odin back to stock rooted then Nandroid Restore?
Sent from my iPad using Tapatalk HD
rockypr said:
So if install ICS and I want to return to GB the safe thing to do is run Odin back to stock rooted then Nandroid Restore?
Sent from my iPad using Tapatalk HD
Click to expand...
Click to collapse
That is correct.
Sent from my Thuggin Azz 4G Touch

Go back to stock ROM using the Nandroid backup?

I've been playing around and checking out a few ROMS (CM9 and CM10), but since they aren't fully complete I want to go back to stock. when I rooted I made a Nandroid backup in recovery. Now If i want to go stock again do I just wipe everything and use the backup I made. Still confused because I flashed kiss kernal. Will restoring remove the kiss kernal?
No need to wipe before you restore your backup, and it will install the stock kernel also
Sent from my One V using xda premium
No... restoring from nandroid will not removed the flashed kiss kernel.
You need to flash a stock boot.img first before nandroid restore or you can flash kiss kernel that is meant for a sense rom first. Without reflashing kernel, you'll be in bootloop.
My bad
Sent from my One V using xda premium
Thanks a lot!
Twner said:
I've been playing around and checking out a few ROMS (CM9 and CM10), but since they aren't fully complete I want to go back to stock. when I rooted I made a Nandroid backup in recovery. Now If i want to go stock again do I just wipe everything and use the backup I made. Still confused because I flashed kiss kernal. Will restoring remove the kiss kernal?
Click to expand...
Click to collapse
Can you share me the stock backup, upload to mediafire or something. i just want to go back to stock rom too. thanks a lot if can
chiplovez9x said:
Can you share me the stock backup, upload to mediafire or something. i just want to go back to stock rom too. thanks a lot if can
Click to expand...
Click to collapse
I asked this in the IRC and was told you would need to flash the stock ROM (RUU?).
Think its this thread:
http://forum.xda-developers.com/showthread.php?t=1591059
Someone could verify.
Not sure how to tell which one you need either. Anyone know what I'd need for Koodo Canada version?
chiplovez9x said:
Can you share me the stock backup, upload to mediafire or something. i just want to go back to stock rom too. thanks a lot if can
Click to expand...
Click to collapse
I would but I have the Middle Eastern model (PrimoU), and im kind of a noob. But if you think it will work on your message me and i'll upload .
atonz said:
Not sure how to tell which one you need either. Anyone know what I'd need for Koodo Canada version?
Click to expand...
Click to collapse
I would get the Telus RUU, but only flash the kernel (boot.img) as I imagine that even if their ROMs are different, they'll be running the same kernel.
Here's how to get the boot.img out of the RUU:
Run the RUU (no need to connect the phone, all you want it to do is extract)
Go to %temp% (Start, Run..., enter %temp%)
Sort by date to find the most recent folder
Find rom.zip in there, open it and extract the boot.img wherever you like
After that you should be able to just fastboot flash boot boot.img like any other kernel, and restore your original nandroid.
formicae said:
I would get the Telus RUU, but only flash the kernel (boot.img) as I imagine that even if their ROMs are different, they'll be running the same kernel.
Here's how to get the boot.img out of the RUU:
Run the RUU (no need to connect the phone, all you want it to do is extract)
Go to %temp% (Start, Run..., enter %temp%)
Sort by date to find the most recent folder
Find rom.zip in there, open it and extract the boot.img wherever you like
After that you should be able to just fastboot flash boot boot.img like any other kernel, and restore your original nandroid.
Click to expand...
Click to collapse
Thank you, I've bookmarked this thread for my future use
Loving the speed of CM9 since I'm assuming its mostly due to the OC'd processor.
Twner said:
I've been playing around and checking out a few ROMS (CM9 and CM10), but since they aren't fully complete I want to go back to stock. when I rooted I made a Nandroid backup in recovery. Now If i want to go stock again do I just wipe everything and use the backup I made. Still confused because I flashed kiss kernal. Will restoring remove the kiss kernal?
Click to expand...
Click to collapse
you need to restore a kernel that is compatible with stock roms, or either the stock kernel itself. Please note, that the boot.img inside the nandroid is NOT a fastboot flashable one, and cwm will NOT flash the boot file.
Also, it is unsure, that one phones nandroid will work in an other phone, not to mention that if cid mismatches it won't even work (this is a lesson I have learned in my own faliures).
Ken-Shi_Kun said:
Also, it is unsure, that one phones nandroid will work in an other phone, not to mention that if cid mismatches it won't even work (this is a lesson I have learned in my own faliures).
Click to expand...
Click to collapse
I can confirm the nandroid from other phone is working for another phone. I just tested that. Use the nandroid backup for my phone and restore it on my wife's phone. Tested with a 2.09.707.1 nandroid backup. Once reboot, the OTA update notification is there.

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