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[Q] Flashing a new kernel onto an existing mod

Hi all,
I've recently tried to update the Matr1x kernel to the 9.0 CFS version on my already installed NSCollab 1.0.50 mod. Unfortunately, this didn't seem to go so well, because my Nexus S (i9023) entered an infinite reboot loop. I was a bit surprised since a lot of people seemed to have no problems with this kernel, and even though I'm new to this stuff, I tried to follow all the guides & tutorials around.
Anyways, here's what I did:
- I downloaded the kernel on my phone from this forum;
- I used ROM Manager, selecting the "Install ROM from SD Card" option;
- I let the "Wipe Dalvik Cache" option enabled.
Once I experienced the reboots, I dropped into recovery and tried to re-wipe the cache & the dalvik cache several times, with no luck. I then proceeded to restore the backup I made before doing this...
Did I do something wrong or stupid?

try flashing the rom(gapps if needed) then the kernel, then reboot.

simms22 said:
try flashing the rom(gapps if needed) then the kernel, then reboot.
Click to expand...
Click to collapse
Does this mean I have to wipe my data again?

I've never used ROM Manager to flash anything (I prefer to be hands-on and do it myself), but if you told ROM Manager to install a ROM from zip and fed it a kernel file, I can't see how that can possibly have a positive outcome hahaha.
Go into CWM, do a factory reset/full wipe and reinstall NSCollab 1.0.50. Once you've installed that, you can immediately install a custom kernel. Reboot, wait for it (the first boot always takes longer) and you should be fine.
Greetz
PS: Remember to always make backups with Titanium Backup, or even Nandroid backups if you're not sure about the actions you're about to do.

mux_ said:
Does this mean I have to wipe my data again?
Click to expand...
Click to collapse
no. go to recovery(dont use rom manager), flash your rom(and gapps), flash the kernel, reboot.

Well, since my system was still fully functional (as I said, I had done a backup from ROM Manager previously and restored it), I tried the manual method first; that is dropping into recovery, wiping dalvik cache, and using 'install zip from sdcard'.
Everything went just fine, and I'm running the Matr1x 9.0 CFS kernel without any issue for now!
Thanks a lot for the help.

[Q] Unable to flash CM10 nightly and restore issues

My phone is stuck in the CyanogenMod 10 booting animation.
I did the following:
1. Installed RUU (after changing radio and wanted to go back) , unchecked fastboot in the power setting and checked the USB debugging from
the DEVELOPER OPTIONS.
2. Rooted the phone.
3. Installed TWRP2.2.2.0 recovery.
4. Backed up the stock sense 4.0 rom.
5. flashed the CM10 Nightly 20/9/2012. flashing went well (no errors or anything of the sort)
6. fastboot the boot.img from the rom.
7. After 25 min of waiting in the boot animation of the CyanogenMod 10 I rebooted and restored the backup ,during the restore ,in the part of the boot restoring, it took around 400sec(i'm not sure if its bad) - after the restore was done the phone did not boot past the first HTC screen (with the red warning ).
8. I installed Viper One rom and now its working fine.
Does any one have an idea of what went wrong?
I wanna be able to flash the CM10 nightlys...
Thanks

Bad CM10 download? MD5?
Bad Boot flash?
What hboot version you on--
Not really sure--did you do full wipe including System on both flashes. I usually wipe 3X on new/different roms--

rugmankc said:
Bad CM10 download? MD5?
Bad Boot flash?
What hboot version you on--
Not really sure--did you do full wipe including System on both flashes. I usually wipe 3X on new/different roms--
Click to expand...
Click to collapse
I flashed the boot twice and two different CM10 nightly and I did not flash the system at any time.
I had Hboot 1.06 before the RUU installation, now i have 1.13, could this be an issue?

ok
with .13 you probably need to fastboot boot image anyway
i always wipe System 3x unless just updating nightlies or a rom with a minor version cahnge
try cm10 again with System wipe

rugmankc said:
ok
with .13 you probably need to fastboot boot image anyway
i always wipe System 3x unless just updating nightlies or a rom with a minor version cahnge
try cm10 again with System wipe
Click to expand...
Click to collapse
Well I have Hboot 1.13 and I just cant flash the CM10 nightly or mount the SD card cant be mount (i tried the guide didn't worked).
when i go in to the CWM recovery i see these messages.
can it be the problem?
I think i need to make a video of what Im doing because ever since i updated the Hboot (by mistake) i just cant flesh CM10 nightlis.

You might want to try TWRP recovery from Market

Trying to get back to CM 10.0 from 10.1

I know the CM 10.1 nightly was experimental.
I flashed it, and it worked decently well enough.
What I failed to realize was that 10.1 flashes a new kernel on the phone, one that is incompatible with CM 10.0. I'm guessing the 4.2 base requires a new kernel.
So Fine, I've tried flashing the stock kernel on my phone, and then installing CM10, but no fish.
Any attempts I've made to change my kernel and then install CM 10 have resulted in my phone being stuck on the CM boot screen (the cyan circle animation)
Flashing CM10.1 nightly from twrp lets my phone boot up, because (i suppose) that rom installation just installs the compatible kernel again.
Can someone please help me figure out what I'm doing wrong with my kernel flashing?

taurius1 said:
I know the CM 10.1 nightly was experimental.
I flashed it, and it worked decently well enough.
What I failed to realize was that 10.1 flashes a new kernel on the phone, one that is incompatible with CM 10.0. I'm guessing the 4.2 base requires a new kernel.
So Fine, I've tried flashing the stock kernel on my phone, and then installing CM10, but no fish.
Any attempts I've made to change my kernel and then install CM 10 have resulted in my phone being stuck on the CM boot screen (the cyan circle animation)
Flashing CM10.1 nightly from twrp ets my phone boot up, because (i suppose) that rom installation just installs the compatible kernel again.
Can someone please help me figure out what I'm doing wrong with my kernel flashing?
Click to expand...
Click to collapse
What hboot r u on? You're full wiping right? And if you're on hboot 1.14 grab the boot.img our of the Rom zip you desire to flash and Fastboot flash it

a box of kittens said:
What hboot r u on? You're full wiping right? And if you're on hboot 1.14 grab the boot.img our of the Rom zip you desire to flash and Fastboot flash it
Click to expand...
Click to collapse
I'm on the 1.09 hboot. I haven't messed with my hboot ever. Should I be upgrading? I'll have to look it up.
I did try what you suggested.
I extracted the boot.img from CM10 stable for evita, flashed it via fastboot.
Then i rebooted into recovery, wiped my system, my cache, my dalvik cache, and did a factory reset.
Then I flashed CM 10.
After all this, still stuck on the cm boot animation. :3 I give it about 10 minutes before I decide its stuck. That is enough time, I think.

taurius1 said:
I'm on the 1.09 hboot. I haven't messed with my hboot ever. Should I be upgrading? I'll have to look it up.
I did try what you suggested.
I extracted the boot.img from CM10 stable for evita, flashed it via fastboot.
Then i rebooted into recovery, wiped my system, my cache, my dalvik cache, and did a factory reset.
Then I flashed CM 10.
After all this, still stuck on the cm boot animation. :3 I give it about 10 minutes before I decide its stuck. That is enough time, I think.
Click to expand...
Click to collapse
Ok no you want to stay on hboot 1.09 and redownload the latest cm10..and do these exact instructions
Wipe factory reset
System
Caches
Install Rom
Install gapps
I'm thinking you just had a bad download

a box of kittens said:
Ok no you want to stay on hboot 1.09 and redownload the latest cm10..and do these exact instructions
Wipe factory reset
System
Caches
Install Rom
Install gapps
I'm thinking you just had a bad download
Click to expand...
Click to collapse
I've done that. But just to be sure, I'm gonna try a fresh download once more. ^_^ Brb 10 minutes.

Curious what happened, as I think I may be having this same issue.

a box of kittens said:
Ok no you want to stay on hboot 1.09 and redownload the latest cm10..and do these exact instructions
Wipe factory reset
System
Caches
Install Rom
Install gapps
I'm thinking you just had a bad download
Click to expand...
Click to collapse
OOh that worked. Thanks a ton! ^_^
Probably was a bad download all three times I tried to download it before. :/ (I should probably buy a lottery ticket now :/ )
Now, Let me try installing my rooted stock rom. :3

Almost Same Problem
I have HTC One XL
-rooted
-unlocked
-bootloader unlocked
-hboot 1.14
-twrp recovery
I was also running the 10.1 expiremental (the first one). It was very buggy, so I tried out the newer experimental to see if the problems were fixed. The newer one was worse, so I decided to switch back to 10.0 nightly. I used fastboot to change the kernel to the one extracted from the 10.0 rom zip. I went to recovery and installed the 10.0 rom, but I DID NOT WIPE ANYTHING THE FIRST TIME. Either it slipped my mind, or I was thinking it wasn't necessary because I was still using a CM rom. The device would not boot, but instead of hanging on the cm animation screen, I'm stuck on the HTC logo screen. I went back to fastboot and did the kernel again and the phone automatically rebooted up correctly, however after a reboot i'm still stuck at the htc logo screen. It reminds me of tethered jailbreaks on iOS, lol. I may have to reflash the kernel every time I reboot. I tried stable, nightly, 10.1 nightly. no dice. any ideas?

lucasjohnsond said:
I have HTC One XL
-rooted
-unlocked
-bootloader unlocked
-hboot 1.14
-twrp recovery
I was also running the 10.1 expiremental (the first one). It was very buggy, so I tried out the newer experimental to see if the problems were fixed. The newer one was worse, so I decided to switch back to 10.0 nightly. I used fastboot to change the kernel to the one extracted from the 10.0 rom zip. I went to recovery and installed the 10.0 rom, but I DID NOT WIPE ANYTHING THE FIRST TIME. Either it slipped my mind, or I was thinking it wasn't necessary because I was still using a CM rom. The device would not boot, but instead of hanging on the cm animation screen, I'm stuck on the HTC logo screen. I went back to fastboot and did the kernel again and the phone automatically rebooted up correctly, however after a reboot i'm still stuck at the htc logo screen. It reminds me of tethered jailbreaks on iOS, lol. I may have to reflash the kernel every time I reboot. I tried stable, nightly, 10.1 nightly. no dice. any ideas?
Click to expand...
Click to collapse
Sounds like the best solution would be what I did, thanks to box of kittens.
Full wipe. (factory reset, system, cache)
Flash a download of CM to make sure you don't have a damaged copy.

taurius1 said:
Sounds like the best solution would be what I did, thanks to box of kittens.
Full wipe. (factory reset, system, cache)
Flash a download of CM to make sure you don't have a damaged copy.
Click to expand...
Click to collapse
Actually, I just remembered. If you're on the new hboot, you should be flashing the boot img through fastboot, and then installing the zip. Since you've been doing all that anyway, perhaps its time to just wipe everything and start over, step by step.
> download cm 10.0
> check md5 to make sure it's proper
> extract boot.img and flash it via fastboot
> reboot into recovery.
> wipe system, cache, dalvik cache, and factory reset
> transfer the rom and flash it via recovery
:/ I'm no expert here, but that's what I'd be doing now.

[Q] phone will not boot after installing any kernel

about a week ago i updated to the newest cm10.1 nightly with gapps 4.2. after flashing those i tried to flash leankernel. my battery was low and the phone turned off when rebooting after the leankernel flash. since then i cannot flash any kernel. i have to do a battery pull to get back into cwm recovery. once in recovery i can wipe data and reinstall cm 10.1 with the standard kernel. i have tried just about every combo of wiping cache, davlik, fix permissions. still not able to flash any kernel. could it have something to do with gapps 4.2 or the phone shutting off mid flash? if so does anyone know how to repair? i already flashed back to stock and rerooted re-unlocked, etc. thanks

and to clarify , it was gapps 4.2.2

Ive found that 3.4 based kernels work with some roms and not with others.
try an older build date its likely not 3.4 based.
or, if your trying a non 3.4 kernel and it wont boot, try a 3.4 kernel.

If you're trying to flash LeanKernel, what's the zip file you're attempting to flash? Also, what are you wiping prior to flashing the kernel?
Sent from my SCH-I535 using xda app-developers app

i tried the mastamoon 3.4 kernel with no luck . the rom i amrunning is the cm-10 nightly 2013-03-24. the leankernel version i am running is lk_s3vzw_aosp_jb42-v2.9. i wipe cache then wipe davlik then flash, it always worked with that procedure before, but since the problem i have tried wiping both after along with fixing permissions. before this issue it was simple as pi, wipe cache, davlik, flash, reboot .

You could always try twrp. Ha. It would make no sense why you couldn't install a kernel.
I would assume since you went back to Odin stock. It would flash factory kernel and give you a clean slate.
So unless cwm is outdated.... ?
Sounds very weird.

actually that is another variable that i didnt think of. cwm updated from 6.0.1 to 6.0.3 or something like that. but then again the original recovery i used after the clean slate was the ez recovery which used 6.0.1 stupid question, but how does twrp work? i always used cwm. i tried flashing twrp but cwm came up when i went to recovery when i tried using twrp?! that was before i did a stock recovery so it couldnt be possible that i am running both? should i delete cwm before i use twrp? if so how? if you dont feel like going into that much detail, i can search it.

i figured out twrp. never gave it achance. ill see if that does the trick

tried twrp. still the same thing going on. gonna go to bed now. ill check back tomorrow after work to see if there are any more ideas. thanks

Problem solved. I went into my internal SD via astro and deleted all old traces of cwm as well as ez unlock and ez recovery. I was getting a generic (showed setting icon instead of regular su icon)super user screen come up prior to that, after deleting those files the regular super user came back. Rebooted into recovery via twrp , cleared cache, Davlik, flashed lean kernel and it worked. What do you think the issue was? Lingering files from ez recovery? That weird su thing?

[Q] ViperOneS 2.2.0 OTA

Hey guys, since my post count is too low to post my problems with this OTA update in the development section of this rom, ill do it here. Sorry for that.
I think im having no problems with flashing the 2.1. ROM yet but i have my concerns if i did that right.
First problem with flashing it, is the question if im having a custom kernel. I flashed ViperOneS a several times but made a fullwipe before.
So am i having a custom kernel or not?
Next issue is that im only able to flash this ROM with CWM. TWRP 2.5 doesnt work and even 2.3.3.0, which should work, but does not for me...
Well with CWM i ll do it that way:
1. Doing Fullwipe in CWM (Factory reset, Wipe Cache, Wipe Dalvik and System).
2. Flashing the ROM and choosing HTC Theme > Custom Kernel? > not sure sometimes "yes" sometimes "no".
3. Flash finished? > asks me if i want to reboot (into system) or save the logs. Since the instruction tells me to flash the boot.img first before rebooting...
4. ... im going into bootloader via adb which works
5. flash the boot.img
6. fastboot erase cache
7. reboot system
8. before doing the first setup i go into recovery and wipe cache.
I think 2.1 works but i want to be sure if i did everything right, especially with the custom kernel question and that i reboot into bootloader right after aroma says that the flash is finished.
Now i want to flash the 2.2.0 OTA because the update function through the ROM didnt work for me last time (it downloads the OTA but wasnt able to flash)
Im not sure how to flash the OTA right via recovery. Everytime i did that the ROM was kinda messed up, like when im turning the screen off and on Sense keeps loading and it takes some sec to unlock. And the venom tweaks app is totally laggy, even with the "trick" to go into app settings and wipe the cache and data which found on any other site (not xda...).
The problem is that they dont keep their instructions up-to-date (+ how to flash the OTA... right)
It looks to my like there are 100 different ways to flash 2.1.0 and 2.2.0 and only 1 is the right way which lets the ROM being amazing...
Hope you can help me. Thanks in advance!

turnschuh said:
Now i want to flash the 2.2.0 OTA because the update function through the ROM didnt work for me last time (it downloads the OTA but wasnt able to flash)
Im not sure how to flash the OTA right via recovery. Everytime i did that the ROM was kinda messed up, like when im turning the screen off and on Sense keeps loading and it takes some sec to unlock. And the venom tweaks app is totally laggy, even with the "trick" to go into app settings and wipe the cache and data which found on any other site (not xda...).
Click to expand...
Click to collapse
All you have to do ist to flash the OTA with your custom recovery like any other flashable zip if this isn't done automatically. You can simply copy it to your device from your pc or flash it from your mobiles download folder, it doesn't matter which way.
The 'trick' is very well known here at xda, but simply nobody wants to repeat it a hundred times... Here at xda there is even included the fact, that after rebooting you should change your skin once to get things going besides wiping cache and data in venom tweaks and hub.
What EXACTLY doesn't work with TWRP 2.3.3.0?

All you have to do ist to flash the OTA with your custom recovery like any other flashable zip if this isn't done automatically. You can simply copy it to your device from your pc or flash it from your mobiles download folder, it doesn't matter which way.
Click to expand...
Click to collapse
yea i did it like that. i just flashed it in the recovery, but im not sure if i have to wipe caches after or before doing that.
The 'trick' is very well known here at xda, but simply nobody wants to repeat it a hundred times... Here at xda there is even included the fact, that after rebooting you should change your skin once to get things going besides wiping cache and data in venom tweaks and hub.
Click to expand...
Click to collapse
about finding such "tricks": the problem is that those ROM release threads have tons of post (500+ sites of them) and it seems like 90% are from people who didnt even flash the ROM... i think you ll excuse me if i say i got tired of searching for my problems there^^
well can u tell me which skin i have to change? on venom tweaks or the htc skin on personalization? and app settings > venom tweaks > wipe cache and data right?
What EXACTLY doesn't work with TWRP 2.3.3.0?
Click to expand...
Click to collapse
when i flash it with 2.3.3.0 (or 2.5... its the same), the flash process doesnt even take up to 2 seconds and it says its finished and that causes a bootloop but doesnt make me wonder.
dont you have problems with TWRP flashing sense roms either?
ah and another one: did i flash the version 2.1 right and what about the custom kernel question?
well thanks for ur time.
edit: well this time flashing with twrp 2.3.3.0 worked somehow, but i choosed flashing without wipe (made it in recovery) and not to delete apps with aroma installer (which i did before)... just strange.

new problem. dont know whats wrong with my phone but:
wanted to make a backup of my ViperOneS 2.1 with TWRP 2.3.3.0 after lets say 70% of progress it starts turning off my phone and restarts into system. i flashed 2.5.0.0 but its the same issue (edit#1: with CWM too...). strange is that TWRP turned out my phone before when i wiped something there.
i think somethings really messed up atm...
edit#2: had to run a ruu over the system again, flashed twrp and backups seem work again..strange ****