Is it better to flash a kernel with the ROM? - Verizon Samsung Galaxy S III

In my case I have been running Carbon Rom for about a week now. I want to flash Lean Kernel. I wanted to know if it is better to re-flash the ROM along with the kernel? Or would it be alright if I flash the kernel right now through recovery, wipe cache/dalvik and call it a day.
Any suggestions and input would be greatly appreciated.

Backup, flash kernel, wipe cache and dalvik, fix permissions, reboot.
Sent from my SCH-I535 using xda app-developers app

Related

Switching kernels; do you need to reflash?

Im on cm7 with dragon kernel. If I wanted to flash faux kernel, do I need to reflash cm7? My guess is I would probably would need to reflash the entire ROM over.
Sent from my LG-P999 using XDA App
No, just wipe cache and dalvik cache in recovery then flash any kernel. And i believe if you want to go back with cm kernel, same wipe then reflash rom..
Sent from my LG-P999 using Tapatalk
noodles2224 said:
No, just wipe cache and dalvik cache in recovery then flash any kernel. And i believe if you want to go back with cm kernel, same wipe then reflash rom..
Sent from my LG-P999 using Tapatalk
Click to expand...
Click to collapse
+1
I also started doing a fix permissions after flashing new kernel.!
fcisco13 said:
+1
I also started doing a fix permissions after flashing new kernel.!
Click to expand...
Click to collapse
I+1 for the fix permissions and I ndont see a stock cm kernel so I think he is right if you want stock cm kernel you have to reflash or restore a nandroid backup.
Couldn't you technically go thru advanced restore and just flash the kernel? I've only gone into there once but can't remember the options available. (This would be to restore cm7 kernel only, follow previous instructions for new kernels)
Sent from my LG-P999 using xda premium
wgrant said:
Couldn't you technically go thru advanced restore and just flash the kernel? I've only gone into there once but can't remember the options available. (This would be to restore cm7 kernel only, follow previous instructions for new kernels)
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
I think advanced would only let you restore system, data, cache, dalvik cache, boot.img, individually
fcisco13 said:
I think advanced would only let you restore system, data, cache, dalvik cache, boot.img, individually
Click to expand...
Click to collapse
Just checked it and was about to edit my post. You are correct, no kernel option, would be cool if backups created included the currently installed kernel and you could restore thru that too.
Sent from my LG-P999 using xda premium

Installed kernel, Phone won't turn on

I installed the elpmax kernel of this website derkernelcom. I cleared the cashe before I did it. But now when I turn the phone on I just get a black screen. How do I fix this. I can reboot into recovery.
Flash the old kernel or clean everything then reinstall the rom
Sent from my LG-P999 using Tapatalk
Wipe cache, clean dalvik cache, flash kernel, fix permission then reboot. Check if u fleshed good kernel for ur rom
Sent from my LG-P999 using xda premium

How do i replace a custom kernel with a differ kernel.

How do i do this? Do i just install the new kernel over the prior kernel? Any help would be appreciated
Yes download the new kernel flash with cwm make sure u wipe cache and dalvik cache first. Reboot enjoy.
Sent from my Nexus S 4G using xda premium

I seriously can't figure it out.

I've been tinkering with androids for well over a year now and have rooted unlocked and s-off'ed amongst other things many different devices. For some reason I'm having trouble flashing kernels to my s3. Yes I'm unlocked and yes I'm flashing aosp kernels to aosp roms and touchwiz kernels to touchwiz roms. The problem seems most persistent on aosp roms and yes I've also checked that they both had the same cm10 commits. The only kernel I could get to boot was clean kernel on beans custom. Other than that no other kernels will work. The device will boot then the screen will start glitching up and then eventually bootloop. I've also made sure to wipe dalvik and cache plus fix permissions. I've also tried just flashing the kernel after doing a full wipe and starting with a new rom and have root 66ed back to stock and re unlocked. Is there something I'm missing here? I'm getting frustrated as I love custom kernels. Oh and the latest combo I tried was liquid smooth rc3 and lean kernel 1.0. Thanks guys.
Sent from my SCH-I535 using xda app-developers app
did you try wiping cach, davik cach, and fix permissions AFTER flashing then reboot?
Ofc wipe cach and dalvik cache before also.
My usual process goes something like this
*Wipe Cache
*Wipe Dalvik
*Flash Kernel
*Wipe Cache & Dalvik again
*Fix Permissions
Works like a charm every time.
Samsung Galaxy S3
i have had the same trouble once...fixed it by flashing back to a stock kernel first.
try this:
wipe cache & dalvik
flash stock kernel.zip- http://db.tt/ceeDTAfz
flash custom kernel
reboot
Is that the stock cm10 kernel or touchwiz? Also yes I've tried wiping before and after and fixing permissions. So weird and its driving me nuts. I miss having awesome battery life
Sent from my SCH-I535 using xda developers app
sumredhed567 said:
Is that the stock cm10 kernel or touchwiz? Also yes I've tried wiping before and after and fixing permissions. So weird and its driving me nuts. I miss having awesome battery life
Sent from my SCH-I535 using xda developers app
Click to expand...
Click to collapse
stock kernel = stock TW kernel
Sent from my SCH-I535 using xda app-developers app
Tried flashing the stock kernel still same thing. It's so weird. It will begin to boot and then boot animation will start flickering or flashing then glitch up. With every kernel it's the same result.
Sent from my SCH-I535 using xda app-developers app
sumredhed567 said:
Tried flashing the stock kernel still same thing. It's so weird. It will begin to boot and then boot animation will start flickering or flashing then glitch up. With every kernel it's the same result.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
another thing you might try is formatting system in cwm.
droidstyle said:
another thing you might try is formatting system in cwm.
Click to expand...
Click to collapse
I've tried that a few times when doing a fresh rom install. I mean root66ing through odin should completely wipe everything. I just don't see what I'm missing. I've even tried using a different recovery and still the same. Could it just be something specific to my phone? I'm so freaking stumped!!
sumredhed567 said:
I've tried that a few times when doing a fresh rom install. I mean root66ing through odin should completely wipe everything. I just don't see what I'm missing. I've even tried using a different recovery and still the same. Could it just be something specific to my phone? I'm so freaking stumped!!
Click to expand...
Click to collapse
now when you odin back to stock, your booting into stock recovery after flashing the rom(root66) and doing a data wipe/factory reset correct? you said full wipe, but just want to be clear. it may be corrupted internal memory and might need to be reformatted.
I actually don't think I was wiping after I used Odin. I'll try that as soon as I get home. Though I have done plenty of factory data resets and system wipes, just not right after I odined. And you mentioned formatting how would I go about doing that?
Sent from my SCH-I535 using xda app-developers app
sumredhed567 said:
I actually don't think I was wiping after I used Odin. I'll try that as soon as I get home. Though I have done plenty of factory data resets and system wipes, just not right after I odined. And you mentioned formatting how would I go about doing that?
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
follow section 6 of my guide...link in sig!
Always perform a full/mega wipe as:
1) Wipe data/factory reset
2) Wipe cache partition
3) Wipe dalvik cache
4) In mounts/storage section wipe /system
5) wipe /data
6) wipe /cache
7) wipe /preload
Then flash new ROM.
For flashing a kernel, please perform steps 2 and 3.

When I flash a MOD

When do I flash a mod in the flashing process? After the ROM, obviously... Do I need to boot the phone up at all before flashing a mod?
Thanks for the patience when you answer. I looked but didn't see my question asked before... I know it's a noob question.
Sent from my SCH-I535
Hmm, I always prefer to flash them separately. When I used to flash mods, I would flash the rom, boot to make sure it runs ok (aka no crazy force closes), then flash the mod. I'm sure that you can flash both at once but I rarely did on my last phone.
Sent from my SCH-I535 using xda app-developers app
SlimSnoopOS said:
Hmm, I always prefer to flash them separately. When I used to flash mods, I would flash the rom, boot to make sure it runs ok (aka no crazy force closes), then flash the mod. I'm sure that you can flash both at once but I rarely did on my last phone.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
This right here. It honestly is hit or miss though. Sometimes I would have zero issues flashing the rom , kernel, and mod all at once back to back. Other times u would be in hell doing that. I have honestly noticed best performance flashing the ROM clean (complete wipe) the. Rebooting... once the ROM settles I go back to recovery and wipe cache and dalvik flash the kernel. Reboot and once that settles, I do the same thing as the kernel. Recovery, wipe cache and dalvik, flash mod and fix permissions. Then boot and done. May seem redundant but it works best for me and I get zero issues
Sent from my SCH-I535 using Tapatalk 2
I flash rom, kernel, restore data if wanted, flash mods, flash themes all at once with TWRP with no problems. Never have fixed permissions. If have to fix permissions you flashed something that UID didn't match. Usually happens when flashing over data.
I've only had problems when I flash ROM then MOD before booting up once.
Thanks so much!
Sent from my SCH-I535

Categories

Resources