[Q] Is it possible to undo a kernel once installed? - EVO 4G Q&A, Help & Troubleshooting

I'm using the stock Gingerbread "Leak" rom version 4.12.651.1 that was leaked recently and I played around with it at first. Took several pictures and videos and enjoyed getting back to having Sense on my phone.
I used Kernel Manager Lite to download and install the Netarchy Toastmod-cfs-havs-more-sbc kernel and at now everytime I open up the camera it shows a white screen and I can't take a picture or video anymore.
Is there a why to uninstall or undo this kernel without having to reflash my Evo? I'd like to go back to just the stock kernel i guess. I even tried to use the Kernal Manager Lite to download and install a different Netarchy Toastmod kernel but it wouldn't install it over a previous kernel and when I clicked on the kernel I already have installed it won't give me an option to uninstall it...
Thanks for any help you guys can give me.

Find the stock kernel for that ROM and flash in recovery after wiping cache and dalvik cache.I will try to find stock kernel for that ROM.

Yeah there's no way to undo once u flash a kernel.....may I make a suggestions for ya foe the future.....Ive been doing this for a while......flash the ROM and make a backup once yur all setup...this way u can tinker with the rom and kernels and themes and what not.......and if those tweaks don't work for ya......u got a backup of a fully stock rom......
Sent from my PC36100 using XDA Premium App

Thanks guys for the awesome advice!
Reverepats, it's funny you said that because that's the first thing that I thought about after this happened and I'm still kicking myself for not backing it up before flashing the kernel LOL It'll be a lesson learned I guess
Ianmb, that would be AWESOME if someone had this. I'll keep looking for this too but if I have to I guess my only recourse would be to wipe it all and reflash all over again... /sigh

There is a post for a working kernel for that ROM on the second page if the ROM is the stock 4.xxx. Stock kernel 15 I think, can't upload file from my phone?

ianmb, thanks for looking but I can't find any stock kernel #15 out there. not even google can help me =/
So it's possible to reflash a kernel over an already installed kernel? If i find the stock kernel how do I go about installing it? Via recovery?

Forgive me if I'm wrong...but if you just reflashed the rom without wiping, I believe it would install the stock kernel that came with the rom
Sent from my nightly EVO

TwhiT said:
ianmb, thanks for looking but I can't find any stock kernel #15 out there. not even google can help me =/
So it's possible to reflash a kernel over an already installed kernel? If i find the stock kernel how do I go about installing it? Via recovery?
Click to expand...
Click to collapse
Yes you can flash a new kernel over an installed kernel...just wipe cache and dalvik prior to flashing
Sent from my nightly EVO

Related

phone touch screen wont register my touch after rom flash

my first rom was evervolv for droid incredible. i decided to go with magnolia rom.. it all worked up to getting to the lock screen after flashing it. the lock screen wouldnt read my touch.. and i switched back to evervolv. it worked after i did. then i decided to go with Warm Z TwoPointTwo... and it did it again.. i'm getting sick of the same ole same old and i need help.. anyone have suggestions to fix this mess so i can get the roms i want???
Are you saying when you flash a different ROM, the touchscreen is not working, and if so, are you running the kernel that comes with the ROM, or something other before first boot?
Are you fully wiping data/cache/dalvik prior to flashing the other ROMs?
Do you have ample space on your SD card?
make sure you clear data/cache/dalvik and all that jazz.
you can also try flashing a new kernel in recovery, that might do something...
yeah i flashed a different rom to my phone and then it messes up.. the screen doesnt read my touch.. i restored my evervolv for it and it works fine again.. but i dont know how to flash a "kernel" that would work with the rom i want.. doesnt that come with a new custom rom?? and what is dalvik? i just press factory reset or whatever..
MatalicZ said:
yeah i flashed a different rom to my phone and then it messes up.. the screen doesnt read my touch.. i restored my evervolv for it and it works fine again.. but i dont know how to flash a "kernel" that would work with the rom i want.. doesnt that come with a new custom rom?? and what is dalvik? i just press factory reset or whatever..
Click to expand...
Click to collapse
Dalvik is under the advanced tab in recovery. I do data, cache, dalvik before flashing a new row. I do cache, dalvik, battery(also under advanced) before flashing kernel. Dl krnel to root of sd card, flash in recovery like rom. I nvr use rom mgr for flashing anymore. Make sure u use sense kernel for sense rom, aosp kernel for aosp roms. Couple of good threads on kernels. Chads kernels work great for my phone, but its preference. Any problems just use the search function on xda, cant find answer then just ask. Good luck.
yes, i am one who likes to flash then flush
This sounds like the same issue you would get with a kernal that is not compatable with a rom. or a theme/mod ment for a different rom. I run evervolv myself and if I try anything else i need to clear/factory reset everything before i flash
i'm very grateful for your guys help. but.. i just ran into that same fix again. i flashed another kernel so i could run the rom i want and it still did it.. so i need to know the kernels that are compatible with roms.. specifically the one i want. (right now its Warm Z TwoPointTwo) but if there is a thread with this info i will try and find it. and also do i flash the kernel for the rom after i flash the rom or do i flash the rom then boot up then go to recovery and apply the kernel.. i'm sorry if i'm sounding too noobish.. i'm learning. very slowly lol
You are flashing Sense kernel with Sense ROM, yes? The kernel is flashed AFTER the ROM install.
Sent from my ADR6300 using XDA Premium App

Question regarding the new 2.3 OTA kernal and rooted ZIP

So, there is Haus's thread which provides download links to the ROM, Kernel and Radios.
I am currently running Salvage Mod and a Tiamat kernel.
If I flash the 2.3 OTA ROM while still running the Tiamat kernel, will I run into issues?
Mindspin_311 said:
So, there is Haus's thread which provides download links to the ROM, Kernel and Radios.
I am currently running Salvage Mod and a Tiamat kernel.
If I flash the 2.3 OTA ROM while still running the Tiamat kernel, will I run into issues?
Click to expand...
Click to collapse
No because after you flash you will no longer be running the Tiamat kernel you will be running the new stock HTC kernel. Flashing the ROM flashes the kernel as well.
zone23 said:
No because after you flash you will no longer be running the Tiamat kernel you will be running the new stock HTC kernel. Flashing the ROM flashes the kernel as well.
Click to expand...
Click to collapse
Oh...
I was under the impression (based off the links provided in the other thread) that the ROM and kernel needed to be flashed separately.
Thanks for clarifying!!
Mindspin_311 said:
Oh...
I was under the impression (based off the links provided in the other thread) that the ROM and kernel needed to be flashed separately.
Thanks for clarifying!!
Click to expand...
Click to collapse
Generally no I flashed it on my EVO and didn't flash any thing else. You might want to go back and take another look I will as well but that generally not the case they come with the kernel.
To flash back to sense you don't have to do anything special. You don't have to nandroid back to sense or anything like that. The only thing you have to do is clear user data, cache, and dalvik cache then flash. You don't need to restore anything first. I saw your other post. Also I'm fairly positive that the ROM has the kernel but if you want to be safe download the kernel as well and just stick it on your storage card just in case.
Remember clearing user data will wipe all of your apps and data.
The kernel is a modified one just incase you have the brightness bug still I think.
When I flashed the new mikg v1.0 i know I still did but I flashed that kernel and it fixed it but I never flashed one of the new stock ROMs cause of the 1.0 sense on it.
Sent from my PC36100 using XDA App

help please

in need of some help im new to this forum and this phone and i just flashed my first rom which is miui and i went into the 4 way boot and selected recovery and cwm recovery showed up instead of cwm-rogue as i previously installed can anybody tell me how to get this back?
solesonfire said:
in need of some help im new to this forum and this phone and i just flashed my first rom which is miui and i went into the 4 way boot and selected recovery and cwm recovery showed up instead of cwm-rogue as i previously installed can anybody tell me how to get this back?
Click to expand...
Click to collapse
Miui uses a different kernel (stock CWM). Cwm are built into the kernel. its a samsung phone thing. the one u had b4 was probably a stock rooted rom with rogue stock kernel. im not sure though. correct me if im wrong anybody
klyang88 said:
Miui uses a different kernel (stock CWM). Cwm are built into the kernel. its a samsung phone thing. the one u had b4 was probably a stock rooted rom with rogue stock kernel. im not sure though. correct me if im wrong anybody
Click to expand...
Click to collapse
Miui uses aosp kernel like cm7 there is only one ..... You have to have that kernel to run the ROM....sorry
Sent from my SPH-D710 using Tapatalk

I need help with my girls phone please

I have flashed a calkulin TW Rom on my girls phone a long while ago, it is android 2.3. She has been asking me to flash an ICS Rom on her phone or even JB if everything works. I just started reading around on here and it seems to have gotten very confusing with all of this kernel talk and everything. Can someone tell me if I can flash a updated kernel while still on this old Rom, and then backup this android 2.3 Rom, then flash an ICS or JB Rom? I need to knkw if she doesn't like the new Rom, will I be able to restore the old 2.3 Rom with this new kernel and recovery. Can someone explain this to me, or point me to the best thread to learn about this phone again. I'm used to HTC devices and they seem way less confusing than this phone. Thanks in advance.
Sent from my EVO using Tapatalk
almony8 said:
I have flashed a calkulin TW Rom on my girls phone a long while ago, it is android 2.3. She has been asking me to flash an ICS Rom on her phone or even JB if everything works. I just started reading around on here and it seems to have gotten very confusing with all of this kernel talk and everything. Can someone tell me if I can flash a updated kernel while still on this old Rom, and then backup this android 2.3 Rom, then flash an ICS or JB Rom? I need to knkw if she doesn't like the new Rom, will I be able to restore the old 2.3 Rom with this new kernel and recovery. Can someone explain this to me, or point me to the best thread to learn about this phone again. I'm used to HTC devices and they seem way less confusing than this phone. Thanks in advance.
Sent from my EVO using Tapatalk
Click to expand...
Click to collapse
An updated kernel? If you mean ICS or JB kernel you cant do that.. You can only use gingerbread kernels with gingerbread.. Now if you want to try some JB / ICS
Just make a back up of what you have... Grab your rom of choice
Wipe everything(its safe since your on GB), and flash your ICS/JB rom (kernels are included with these roms so no worries)
Now when you want to restore just go back into the recovery of your rom(whatever you flashed) and restore the calk rom.. It will be just like you left it
-TeaM VeNuM Like A Boss
Ok, thanks for the extremely quick reply. I have also seen things about unsafe recoverys or something of the sort. I'm on a very old recovery on her phone. What would you suggest I update the recovery to before I do this? I believe it has the cwm rogue recovery on it now if I remember right. Thanks again.
almony8 said:
Ok, thanks for the extremely quick reply. I have also seen things about unsafe recoverys or something of the sort. I'm on a very old recovery on her phone. What would you suggest I update the recovery to before I do this? I believe it has the cwm rogue recovery on it now if I remember right. Thanks again.
Click to expand...
Click to collapse
If you are familiar with odin or mobile Odin.. I'd odin /mobile Odin the El26 from here http://forum.xda-developers.com/showthread.php?t=1662295.. Unless you are on el26 now? It been a minute since I been on GB
But ICS kernels are now safe (agats, kuban kernel) to flash from and restore your back up to GB
JB kernels are safe as well to restore your back ups /flash from
I never *flashed from a jb kernel tho.. I always play safe and mobile Odin el26 before flashing from a JB kernel
-TeaM VeNuM Like A Boss
Just go to the Android development forum (not original development) there's a sticky there called kernel repository find any gingerbread kernel and as long as it's not rouge recovery you'll be able to backup her current ROM and flash any new one you want. I say avoid rouge because seems a lot of people myself included couldn't flash roms from rouge. And if you want to do jellybean sbrissen's kernel/recovery is safe to flash back any ROM as well. I did it last week
Sent from my SPH-D710 using xda app-developers app

[Q] LiquidSmooth locks up daily - HELP !!!

My phone locks up almost daily and I have to remove the battery and then put it back in to get it going again.
This cant be normal...
I have TeamWin loaded onto it and have installed LiquidSmooth using this. I wiped the Cache, Dalvik, System at least three times before installing LiquidSmooth. I have tried installing it a few times with the same result.
Still, the phone locks up and it generally locks up while I am on a call. It generally doesnt lock up while using an app or browsing.
I am getting kind of sick and tired of removing the back cover and pulling the battery daily....
Any thoughts ?? Help !
INFO:
Phone: Samsung Galaxy S3, AT&T, SGH -I747
Android version 4.2.2
LiquidSmooth: liquid_d2att-userdebug 4.2.2 JDQ39 eng.liquid.20130403.222500 test-keys
LiquidSmooth Version Liquid - JB-v2.1-OFFICIAL
Kernel version: [email protected] #167
(I did try installing AOKP as well, and that gives me an error installing, so I couldnt even get that going - maybe these problems are related??)
Shane24 said:
My phone locks up almost daily and I have to remove the battery and then put it back in to get it going again.
This cant be normal...
I have TeamWin loaded onto it and have installed LiquidSmooth using this. I wiped the Cache, Dalvik, System at least three times before installing LiquidSmooth. I have tried installing it a few times with the same result.
Still, the phone locks up and it generally locks up while I am on a call. It generally doesnt lock up while using an app or browsing.
I am getting kind of sick and tired of removing the back cover and pulling the battery daily....
Any thoughts ?? Help !
INFO:
Phone: Samsung Galaxy S3, AT&T, SGH -I747
Android version 4.2.2
LiquidSmooth: liquid_d2att-userdebug 4.2.2 JDQ39 eng.liquid.20130403.222500 test-keys
LiquidSmooth Version Liquid - JB-v2.1-OFFICIAL
Kernel version: [email protected] #167
(I did try installing AOKP as well, and that gives me an error installing, so I couldnt even get that going - maybe these problems are related??)
Click to expand...
Click to collapse
Hey man,
My suggestion is to use Odin to flash the stock image back to stock and see if the problem persists. If it does, I'd take it back to at&t for a new phone (if you've had it less than a year or you have some sort of insurance plan.)
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
---------- Post added at 02:23 AM ---------- Previous post was at 02:18 AM ----------
If flashing back to stock fixes it, its user error. Make sure you're up to date on everything, I.e boot loader, recovery, everything. If that does nothing for you maybe try flashing the new version of CWM and see if it'll flash right that way.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Is it just me or is your lean kernel like years old? Isn't the newest version 7.2?
Same with your rom.. 2.9 is out?
Sent from my SGH-I747 using xda premium
Yes, the kernel could be old. I have never updated it... I hate to admit, but I have no idea what the kernel does actually or how to flash a new one.
I have installed the ROM, but not the kernel obviously....
Any info on what a kernel does? Can I flash it easily with TeamWin ?
I can definitely upgrade the ROM to the latest version of liquidSmooth
Shane24 said:
Yes, the kernel could be old. I have never updated it... I hate to admit, but I have no idea what the kernel does actually or how to flash a new one.
I have installed the ROM, but not the kernel obviously....
Any info on what a kernel does? Can I flash it easily with TeamWin ?
I can definitely upgrade the ROM to the latest version of liquidSmooth
Click to expand...
Click to collapse
Hey man,
If you're going to be flashing custom ROMs you should probably learn what a kernel is. Use the search feature or simply use google. In fact, the xda TV channel just put out a video on kernels this week on YouTube.
Anyways, as I said previously, make sure EVERYTHING is up to date. Including the ROM version. Dont worry about flashing kernels until you have a solid understanding of what they are. I'm almost positive that you are just flashing out of order. Just start from scratch, make sure EVERYTHING is up to date. Good luck.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
yup, I got up to speed on kernels. (Thanks for the suggestions as I didnt know about Kernels, but now I do...)
So, the plan is to
- wipe: dalvic, cache, etc... (3X)
- install the Bionic Sheep 4.2.2 Kernel
- install ROM (I'll try Hyperdrive and DeadlyVenom and LiquidSmooth again)
- install Google Apps...
I have TeamWin installed obviously.
Hopefully this will get my phone back on track...
Shane24 said:
yup, I got up to speed on kernels. (Thanks for the suggestions as I didnt know about Kernels, but now I do...)
So, the plan is to
- wipe: dalvic, cache, etc... (3X)
- install the Bionic Sheep 4.2.2 Kernel
- install ROM (I'll try Hyperdrive and DeadlyVenom and LiquidSmooth again)
- install Google Apps...
I have TeamWin installed obviously.
Hopefully this will get my phone back on track...
Click to expand...
Click to collapse
Hyperdrive and Deadly venom are touchwiz ROMs, u can't flash bionic sheep with them!!! And u don't need to flash gapps with tw ROMs either!!
Also, u need to flash a kernel after u flash the ROM, otherwise it will be overwritten by the stock kernel for whatever particular ROM u are flashing. I would suggest sticking with the stock kernel for a bit and see how it runs!
Shane24 said:
yup, I got up to speed on kernels. (Thanks for the suggestions as I didnt know about Kernels, but now I do...)
So, the plan is to
- wipe: dalvic, cache, etc... (3X)
- install the Bionic Sheep 4.2.2 Kernel
- install ROM (I'll try Hyperdrive and DeadlyVenom and LiquidSmooth again)
- install Google Apps...
I have TeamWin installed obviously.
Hopefully this will get my phone back on track...
Click to expand...
Click to collapse
What the guy above me said about TW roms is correct. Flashing the wrong kernel is not a good idea. Here's what I do on every flash
- wipe system, data, caches, etc.
- flash rom( and gapps if necessary)
- boot up rom and let it settle for 5 min, then boot back into recovery
-flash correct kernel for the rom's version(check kernel number in about device and custom kernels op), then wipe both caches and fix permissions.
-reboot and enjoy:laugh:
DMF1977 said:
Hyperdrive and Deadly venom are touchwiz ROMs, u can't flash bionic sheep with them!!! And u don't need to flash gapps with tw ROMs either!!
Also, u need to flash a kernel after u flash the ROM, otherwise it will be overwritten by the stock kernel for whatever particular ROM u are flashing. I would suggest sticking with the stock kernel for a bit and see how it runs!
Click to expand...
Click to collapse
Which Kernel would I need to use then for Touchwiz ROM's ???
And which kernel for LiquidSmooth and AOKP ??
Shane24 said:
Which Kernel would I need to use then for Touchwiz ROM's ???
And which kernel for LiquidSmooth and AOKP ??
Click to expand...
Click to collapse
Like I said, I would suggest sticking with the packaged kernel that comes with whatever ROM that you are going to flash, run it for a few days, after that if u still feel the need for something more, go with a custom kernel! Ktoonsez makes an excellent kernel, one for tw, and one for aosp, u just have to pick the right one according to which ROM you're running!! Good luck...
DMF1977 said:
Like I said, I would suggest sticking with the packaged kernel that comes with whatever ROM that you are going to flash, run it for a few days, after that if u still feel the need for something more, go with a custom kernel! Ktoonsez makes an excellent kernel, one for tw, and one for aosp, u just have to pick the right one according to which ROM you're running!! Good luck...
Click to expand...
Click to collapse
I did try flashing AOKP with TouchWiz, and it gives me an error that it cant flash.
Is the kernel that Ktoonsez all part of the ROM and just one file ?
Ultimately, I would like to flash AOKP, but my Galaxy S3 wont allow it...
Shane24 said:
I did try flashing AOKP with TouchWiz, and it gives me an error that it cant flash.
Is the kernel that Ktoonsez all part of the ROM and just one file ?
Ultimately, I would like to flash AOKP, but my Galaxy S3 wont allow it...
Click to expand...
Click to collapse
What?
What DMF1977 was saying is just flash the ROM you desire to have on your device and just run the kernel that comes with the ROM. After running the ROM you chose for awhile, if you feel the need to flash a new kernel then and only then flash the correct version of Ktoonsez kernel. And its not surprising that if you tried to flash anything AOKP related with TW you got an error.
Just flash an AOKP ROM and Dont worry about flashing an additional kernel.
Goodluck
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

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