Develop Bugs

Kernel/ROM install order

Probably a pretty stupid question but I'm doing some flashing today and I'm curious. Does it matter which order I flash the Rom and Kernel in? Or should the Kernel come first?

ROMs usually have a kernel with them, so install the rom, then the custom kernel you want.

HideYoKids said:
Probably a pretty stupid question but I'm doing some flashing today and I'm curious. Does it matter which order I flash the Rom and Kernel in? Or should the Kernel come first?
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Click to collapse
Rom first, Kernel second! I don't know if it matters but I have never done it the other way. I always allow a boot up first when the rom installs and then reboot into recovery again and install the kernel Good luck.

jd1001 said:
Rom first, Kernel second! I don't know if it matters but I have never done it the other way. I always allow a boot up first when the rom installs and then reboot into recovery again and install the kernel Good luck.
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Click to collapse
Thanks, guy!
Will do.

when you install a new kernal, is there anything you need to do or does it replace the old one and most things should just work?

droidmarc said:
when you install a new kernal, is there anything you need to do or does it replace the old one and most things should just work?
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Click to collapse
Provided you installed the correct one fo your phone it should work fine. You may notice things like longer battery life, enhanced speed on mobile networks and also the ability to change the frequency of the phones processor. I use an apex kernel on my GNex and it is really good.

If you install a kernel and then a rom, your kernel will be overwritten considering roms come with kernels
Sent from my Galaxy Nexus using xda premium

joshnichols189 said:
If you install a kernel and then a rom, your kernel will be overwritten considering roms come with kernels
Sent from my Galaxy Nexus using xda premium
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Good point! DIDn't think of that!

jd1001 said:
Good point! DIDn't think of that!
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Click to collapse
Install rom. Wipe Dalvik Cache before installing your kernel. Install kernel. Profit!

thanks
After installing rom, gapps, then kernel..it hangs at the HTC boot screen...
I did all in the correct order. wiped dalvik cache and then installed kernel..
S-off
Rooted
Htc One S (ville)
hboot 2.15
im installing pac rom and elementalx kernel.
im posting this here in a 2 year old thread,,because i had the same question. anyways any ideas as to whats wrong?
ive let it sit waiting for about 20+ minutes before and it still didnt boot.
thanks!

Sailor spinach said:
After installing rom, gapps, then kernel..it hangs at the HTC boot screen...
I did all in the correct order. wiped dalvik cache and then installed kernel..
S-off
Rooted
Htc One S (ville)
hboot 2.15
im installing pac rom and elementalx kernel.
im posting this here in a 2 year old thread,,because i had the same question. anyways any ideas as to whats wrong?
ive let it sit waiting for about 20+ minutes before and it still didnt boot.
thanks!
Click to expand...
Click to collapse
Not only in a old thread but in a section for a completely diffrent device too. This is the Galaxy Nexus forum
Sent from my Galaxy Nexus using XDA Free mobile app

Help with root!

Ok, So i've successfully rooted my epic 4g touch and I successfully installed the rogue CWM found on this forum. Now whenever I try to flash the CM7 zip (trying to get AOKP), it will only boot into CWM and the phone won't boot. I've tried re-rooting, wiping dalvik (gives me volume patch error), and wiping cache, etc.
Any help?

No need to boot flash aokp in the recovery and on pretty sure aokp will boot
Sent from my SPH-D710 using Tapatalk

It also seems to be installing the zips very fast.

iSaint said:
No need to boot flash aokp in the recovery and on pretty sure aokp will boot
Sent from my SPH-D710 using Tapatalk
Click to expand...
Click to collapse
No, it doesn't boot. Gets stuck on Galaxy S II screen.

Help please!

Flash it twice. This is a common occurrence
And by that I mean flash it twice successively, one after the other. Should fix you up. Let us know if that doesn't work.
Sent from my SPH-D710 using XDA

Fendulon said:
Flash it twice. This is a common occurrence
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
I've done that. It didn't work.

You don't need to install CM7 to install AOKP.
Try this: ODIN to stock EL29, use one click root (choose option C, then I (this'll root your device and give stock CWM recovery)).
Then boot into recovery, flash AOKP, gapps and FD02 modem if you'd like.
Stock EL29: http://forum.xda-developers.com/showthread.php?t=1352310
Root: http://forum.xda-developers.com/showthread.php?t=1342728

3meister said:
You don't need to install CM7 to install AOKP.
Try this: ODIN to stock EL29, use one click root (choose option C, then I (this'll root your device and give stock CWM recovery)) then boot into recovery, flash AOKP, gapps and FD02 modem if you'd like.
Stock EL29: http://forum.xda-developers.com/showthread.php?t=1352310
Root: http://forum.xda-developers.com/showthread.php?t=1342728
Click to expand...
Click to collapse
I'll try that.

^ that start from scratch and relax you're far from bricked
Sent from my SPH-D710 using Tapatalk

batting1000 said:
I've done that. It didn't work.
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Click to collapse
Really? Interesting. Ok well most people are actually flashing AOKP and Codename from the EL26 CWM that is linked in the OP of those threads. That is actually how I have flashed over 15 times with different builds. So if you can Odin EL26 with clockwork mod you should be able to flash AOKP after you flash a calkulin format all to wipe all relevant partitions and don't forget to install Google apps.
Sent from my SPH-D710 using XDA

3meister said:
You don't need to install CM7 to install AOKP.
Try this: ODIN to stock EL29, use one click root (choose option C, then I (this'll root your device and give stock CWM recovery)).
Then boot into recovery, flash AOKP, gapps and FD02 modem if you'd like.
Stock EL29: http://forum.xda-developers.com/showthread.php?t=1352310
Root: http://forum.xda-developers.com/showthread.php?t=1342728
Click to expand...
Click to collapse
If I'm already rooted can I do option I over the root?

batting1000 said:
If I'm already rooted can I do option I over the root?
Click to expand...
Click to collapse
Yes, root works a bit different on this phone. Pretty much every single rom available will provide with root and superuser when it is installed via some sort of custom recovery or Odin. Odin is actually a very safe and convenient method of flashing.
Sent from my SPH-D710 using XDA

Fendulon said:
Yes, root works a bit different on this phone. Pretty much every single rom available will provide with root and superuser when it is installed via some sort of custom recovery or Odin. Odin is actually a very safe and convenient method of flashing.
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
I'll try that and report back.

Didn't work. Zips are installing way too fast. Isn't booting into AOKP. Guess I gotta go back to stock.

batting1000 said:
Didn't work. Zips are installing way too fast. Isn't booting into AOKP. Guess I gotta go back to stock.
Click to expand...
Click to collapse
Hmm that's strange. A lot of people definitely have the fast zip installing issue but when they flash it for the second time without ever rebooting recovery or the phone it takes a good 15+ seconds to flash and it successfully writes to your phone and boots up. Going back to stock certainly can't hurt. Perhaps start from there.
Sent from my SPH-D710 using XDA

Fendulon said:
Hmm that's strange. A lot of people definitely have the fast zip installing issue but when they flash it for the second time without ever rebooting recovery or the phone it takes a good 15+ seconds to flash and it successfully writes to your phone and boots up. Going back to stock certainly can't hurt. Perhaps start from there.
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
I've started from stock twice, reinstalled rooted via odin (twice), then tried to do CWM. Thanks anyway guys! Appreciate it!

Have you tried redownloading the ROM? If you downloaded via your device you could have had some dropped packets.
Sent from my SPH-D710 using Tapatalk

Can't get ROMs to boot

Not sure what's up, but all of a sudden I can't flash custom ROMs anymore. None of them boot. All I can do is odin OC stock Touchwiz roms, but any CWM flash of a ROM I do doesn't boot.
They worked until yesterday when I tried flashing the Rubix xcel rom v1.0.1. Every ROM before that flashed until I tried to flash that one and it just bootlooped. Never every flash does it.
And yes, download mode works and all touchwiz builds work when flashed through odin. Now i'm worried I won't be able to flash any custom ROM like the Sense 4 ROM if it comes out or any ROM built from source and only stock TW ROMs.

Did you flash format_all?

sfhub said:
Did you flash format_all?
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Click to collapse
Yes. Last night I tried that on the rubix xcel rom 1.0.1 and it still didn't boot. I never used to have to flash that and ROMs would boot. No idea why they don't boot anymore.

try a few different. versions of CWM

SantinoInc said:
try a few different. versions of CWM
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Click to collapse
I was using the el26 CWM kernel. What should I try?

Btw, I've been flashing the el26 cwm kernel while on FD26 stock ROM. I've been able to flash without issues previously as I said so it shouldn't be the issue.

Have you tried other roms then that one?? There is a chance that ROM version doesn't boot.
Different recoveries shouldn't really make a difference in this case. You could try wiping data after a flash and see if it boots. Really shouldn't make a difference but I'm not sure why otherwise wiping and flashing a rom that should boot isn't.
Sent from my SPH-D710 using xda premium

barnacles10 said:
Have you tried other roms then that one?? There is a chance that ROM simply doesn't boot.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I've tried rubix and EpicTouchAOSPmod (the latter I've used before) and AOKP today (used it before too). Neither booth and I even tried installing rubix 3 times.

I would suspect your rom downloads as a likely culprit.
Are you downloading them directly to your phone, external or internal sd, copying them from pc (usb problem causing glitches during copy)? Check md5 of roms if they are available also. Just a few ideas.
Edit: I could go so far as to format both your internal and external SD's from the storage menu of the phone (after you backup your stuff of course). Or pop out external SD and run it without as a test too.

batting1000 said:
I've tried rubix and EpicTouchAOSPmod (the latter I've used before) and AOKP today (used it before too). Neither booth and I even tried installing rubix 3 times.
Click to expand...
Click to collapse
I edited above but if you don't catch it try to wipe out data again after a flash. Not convinced this could make a difference but otherwise I can't imagine why a rom that should boot isn't.
Be sure your downloads are fully there too.. check md5s to be sure they are not corrupt.
Sent from my SPH-D710 using xda premium

barnacles10 said:
I edited above but if you don't catch it try to wipe out data again after a flash. Not convinced this could make a difference but otherwise I can't imagine why a rom that should boot isn't.
Be sure your downloads are fully there too.. check md5s to be sure they are not corrupt.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Yes I have done that too.
I'll try removing my sd card and putting it back in. I'll try mobile odin too.

batting1000 said:
Yes I have done that too.
I'll try removing my sd card and putting it back in. I'll try mobile odin too.
Click to expand...
Click to collapse
Try leaving it out entirely, you can always reinsert it later.

tdunham said:
Try leaving it out entirely, you can always reinsert it later.
Click to expand...
Click to collapse
Will do.

BTW dude that was your 666th post!

tdunham said:
BTW dude that was your 666th post!
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Click to collapse
Oh god!
--
Flashing now. Will report back

I think you're calling to the wrong deity. LMAO
Ok, we don't want to see you back here until you've taken an adequate break and tried some of these things so you don't get overwhelmed.

Still not booting AOKP. Boots up with a black screen and nothing happens, like before. Oh well, thanks anyway. Really not sure what's wrong. I've always been able to flash ROMs.
Maybe later on I'll try odin to el29 then flash kernel with cwm then flash rom.

Yes, Odin to stock (GB preferably) flash Calks format all, (download a current copy I had an older one and discovered it didn't work), flash the rom. You know the drill.
Sent from my SPH-D710 using XDA

tdunham said:
Yes, Odin to stock (GB preferably) flash Calks format all, (download a current copy I had an older one and discovered it didn't work), flash the rom. You know the drill.
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
Do you think ICS could be the issue? I mean I've flashed from FD26 to the el26 cwm before and had no issue. I'll try again with GB soon though, a new leak could be out tomorrow supposedly and I wanna try it out

batting1000 said:
Do you think ICS could be the issue? I mean I've flashed from FD26 to the el26 cwm before and had no issue. I'll try again with GB soon though, a new leak could be out tomorrow supposedly and I wanna try it out
Click to expand...
Click to collapse
Its possible, I would go back to totally stock EL29 GB.. Here is my canned Sfhub howto easy instructions, not that you need them :
1. Download to your pc SPH-D710.EL29_CL852097_ROOTED-oc-sfx.exe from here:
http://forum.xda-developers.com/showthread.php?t=1433101
Boot the phone up into download mode, connect the phone to your pc and run that file. Wait for the phone to reboot.
Download to your pc the e4gtauto-sfx.exe from here:
http://forum.xda-developers.com/showthread.php?t=1342728
Run this file so it can self-extract.
USB Debugging must be ENABLED - [Menu->Settings->Applications->Development->USB debugging]
Click on "runfirst" from within the folder that gets created (the e4gtauto self extracts to a folder, can't remember what its called)
Your phone will already be rooted from the first file so click on "option C", then on the next page, click on "option J" for the rogue cwm and let it finish!
2. Save these instructions, you may need them again someday!
This will give you a totally FRESH copy with a stock rom.
This stock rom will already be rooted and have CWM recovery installed.

[Q] Brand new sprint gs3

I recently bought, and finally rooted my sprint sph-l710. I have flashed two roms, hyperdrive, and moar roms. My problem is that i cant flash anything else, only those two roms. Is there a fix?

bigchuq said:
I recently bought, and finally rooted my sprint sph-l710. I have flashed two roms, hyperdrive, and moar roms. My problem is that i cant flash anything else, only those two roms. Is there a fix?
Click to expand...
Click to collapse
What do you mean you can't flash anything else? When you flash, are you wiping everything clean each time before flashing ROMs or are you dirty flashing?

tkepk181 said:
What do you mean you can't flash anything else? When you flash, are you wiping everything clean each time before flashing ROMs or are you dirty flashing?
Click to expand...
Click to collapse
yes, i'm wiping everything, whenever i try to install any other rom i have some type of error. i'm new to this so please excuse my noobness. i've tried to flash a stable cm10, among others with no luck.

Do you have the md4 boot loader?
Sent from my SPH-L710 using xda app-developers app

The new S3 have been modded by Sprint /Samsung and require a modded recovery in order to mount storage. The other issue is that you can not flash an aosp style rom. You should be able to flash any TW rom but it won't allow aosp roms to flash. None of the developers have a new S3 so until someone gets one ir someone volunteers one this won't be solved.
Remember search is your best friend, Have a great day!

IDontKnowMang said:
Do you have the md4 boot loader?
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I believe so, but i'm not sure is that @ the end of the build number? If so, yes

bigchuq said:
I believe so, but i'm not sure is that @ the end of the build number? If so, yes
Click to expand...
Click to collapse
If your getting a status 7 error that is the bootloader error flash this in recovery it will update all your firmware and bootloader. http://db.tt/Qt6NcH0a
After flashing this make sure you reboot the phone then try going back into recovery and flashing the rom you want.
Remember search is your best friend, Have a great day!

Is this still a legit fix even after the 4.3 upgrade?
I just tried this and now my phone wont even power on.

Phone restarts 20 seconds after opening. Sprint LG G2

I recently flashed the 1.6.1 furnace kernel and my phone began to act strange. I did not deviate from the instructions and took precautions. The phone would turn on and seem functional for 20 seconds. After that, it would turn off and restart. I flashed the stock rom and unrooted the phone, however, it continues to behave this way, only now it isn't rooted and I cannot access the recovery menu.

AymanDev said:
I recently flashed the 1.6.1 furnace kernel and my phone began to act strange. I did not deviate from the instructions and took precautions. The phone would turn on and seem functional for 20 seconds. After that, it would turn off and restart. I flashed the stock rom and unrooted the phone, however, it continues to behave this way, only now it isn't rooted and I cannot access the recovery menu.
Click to expand...
Click to collapse
Is the Kernel Undervolted/Overclocked by default? Some custom kernels are UVd but not all phones can handle that.

abhinav.tella said:
Is the Kernel Undervolted/Overclocked by default? Some custom kernels are UVd but not all phones can handle that.
Click to expand...
Click to collapse
I don't believe so. I chose the non overclocked version to be safe so it should't be. Is there a way I can flash a custom ROM onto the phone without recovery mode and without it being rooted?

AymanDev said:
I don't believe so. I chose the non overclocked version to be safe so it should't be. Is there a way I can flash a custom ROM onto the phone without recovery mode and without it being rooted?
Click to expand...
Click to collapse
Sorry to say, but that's not possible.

abhinav.tella said:
Sorry to say, but that's not possible.
Click to expand...
Click to collapse
even through download mode?

AymanDev said:
even through download mode?
Click to expand...
Click to collapse
You can get back to stock via download mode, but I don't believe you can install custom roms.

Time to kdz I think.
delivered by my G2

Or .tot if on sprint.
Sent from my LG-LS980 using xda app-developers app

InsanePostman said:
Or .tot if on sprint.
Sent from my LG-LS980 using xda app-developers app
Click to expand...
Click to collapse
Will this change the current kernel back to stock because I think that is the problem. I kdz using flashtool and it works for about 5 minutes before doing the same thing... : (
Should I just keep trying or is there something I should change.
(I have reflashed the stock .tot before and it worked. Using the same method now doesn't seem to work)

Take it back to stock with download mode. If this does not fix the issue then the phone needs to be replaced. If going back to stock doesn't fix the issue you might want to work with the developer as I have heard of this before. Might just be faulty hardware as it doesn't seem common, but there may be something the custom rom is doing that is the cause. Hoping a factory restore fixes things for you.