Develop Bugs

Issues with custom kernels

For some odd reason I cannot flahs any custom kernels. Whenever I flash some rom, the included kernel will work just fine. But if I flash another one, like franco or matr1x, I end up in bootloop, or stucks at boot. Anyone else experienceing this behaviour?

You need to make sure you flash a kernel that is built for the version of android you are using.
For example ARHD 2.1.1 is 4.0.2 so you can not use the Matr1x v1.5 kernel because it is built for 4.0.3
Always read the OP before flashing, the info is there
Edit: messed up my version numbers
Sent from a phone that is not running ICS

I have the same problem - no matter what kernel I use or how I try to install it I have yet to find one that will work with a stock version of ICS 4.0.2 on my phone - they always freeze at the boot screen, I don't get any further.

I have indeed checked versions before flashing.
Sent from my Galaxy Nexus using xda premium

[XXLE4]Issue with custom kernel - disturbing reboots
Hi everyone,
I am facing an huge issue that make me unable to flash any custom kernel without rebooting.
I though it was because brand new XXLE4 cannot support 1k+ frequencies or may be another things than I could not have been imagine because of my poor informatic and linux knowledges but it seems that i am just unable to flash custom kernel. only the original CF-ROOT doing his job but others aren't.
May be because of the SetCPU apps but it is less sure that the origin take his effect from that apps. It is a quit anoying because I would have been set my Scary 120 - 1350 to get an impressive battery life with the brand new UC-Kernel but seems to be a mirage for me.
I had got some custom roms but I can't just use them because I want an real free-bugs ROM an official release are the only one option for me and my usual usage.
Thanks in advance for the help provided and I apologies for my bad english.

maybe EXT format?

Chaw Rash said:
maybe EXT format?
Click to expand...
Click to collapse
Could you please rephrase it in others "newbie's words" ? Didn't get what's EXT format.
Forgave my poor knowledge and my english.

crfrank said:
I have the same problem - no matter what kernel I use or how I try to install it I have yet to find one that will work with a stock version of ICS 4.0.2 on my phone - they always freeze at the boot screen, I don't get any further.
Click to expand...
Click to collapse
4.0.2? I believe no custom kernels support 4.0.2 anymore. Updated/latest versions of said custom kernels at least. I think franco has a 4.0.4 version of his though i'm sure very few people are on 4.0.4, 4.0.2 is just a thing of the past.
tristan202 said:
I have indeed checked versions before flashing.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
How are you flashing kernels? What recovery do you have installed?
Drakenlord78 said:
Hi everyone,
I am facing an huge issue that make me unable to flash any custom kernel without rebooting.
I though it was because brand new XXLE4 cannot support 1k+ frequencies or may be another things than I could not have been imagine because of my poor informatic and linux knowledges but it seems that i am just unable to flash custom kernel. only the original CF-ROOT doing his job but others aren't.
May be because of the SetCPU apps but it is less sure that the origin take his effect from that apps. It is a quit anoying because I would have been set my Scary 120 - 1350 to get an impressive battery life with the brand new UC-Kernel but seems to be a mirage for me.
I had got some custom roms but I can't just use them because I want an real free-bugs ROM an official release are the only one option for me and my usual usage.
Thanks in advance for the help provided and I apologies for my bad english.
Click to expand...
Click to collapse
I'm sorry, i dont know any LE4 bb or bl version, nor a CF-ROOT kernel? These are the Gnex forums.
sent from my i9250

What roms can be used with the T999v?

I've been going all around the forum not being able to figure out what ROMS and kernels will work with T999v Wind version of the S3. I bricked my phone once already by installing the wrong kernel, so I don't wanna mess around again too much without knowing what roms and kernels are working. I've read around that we can flash T-mobile roms as long as they don't contain radio files. I also read on another thread that as long as the boot, modem and amss files aren't in the rom, we're good to go. Now I'm pretty new to the Android community so I'd like some help before I have another disaster on my hands.
Thanks.

*Disclaimer: I am not a Wind user so don't quote me on this but...
I don't believe any of the custom roms in the T Mobile dev forum come with radios. Except for the stock images made to flash with Odin. The main thing to remember as far as kernels go, if you flash a touchwiz rom you need a touchwiz (or stock) kernel. If you flash an AOSP rom you need an AOSP kernel or you will be stuck in a bootloop.
BTW, this rom has been confirmed working on Wind Mobile.

Thanks. Now I had a question about kernels. They still need to be for the T-Mobile version of the phone right? As long as that's true I shouldn't really have a problem using the kernel?
Sent from my SGH-T999V using xda app-developers app

Yes, I believe you will be fine with any T Mobile specific kernels. Still, the important thing before flashing anything is to make sure you make a backup just in case.

That rom will work fine.
Sent from my SGH-T999 using xda premium

I'm on a Wind GS3 and I'm currently using FreeGS3 R5 with Trinity Alpha 19 kernel. Works great.
edit: Just updated to R6, still great.

*Wind Users* Confirm ROMS/Kernels that work for your GS3.

As far as I know, the only ROM that works with our Wind GS3 is the GSM Universal ROM from Redrum. If there are other ROMs or Kernels that you have tried and can confirm work without issue, please list them here.

I'm using FreeGS3 R6 with Trinity ALPHA 19 kernel and everything is running awesome. I'm fairly sure all the ROMS and kernels for t-mobile work on WIND/Videotron. The only things that don't work are the custom radio files, they will brick your phone.
I really wish we had a dev working on WIND/Videotron t999v, I'm a terrible programmar or else I would give it a shot
Just incase you didn't know you can use mrRobinson's method in the dev section to root the phone and then use terminal emulator to push Clockwork recovery onto the t999v, it is extremely easy to do.
Link to mrRobinson's thread
Link to install CWM recovery with terminal emulator
You could probably use TWRP instead of CWM but for me it won't detect my SD cards.

Wicked rom and faux 10m
Ive been running wicked ROM version 2 which is preloaded with faux 10m kernel. It's an excellent rom. Super fast and smooth compared to CM9 and stock. Download the fully debloated version. Battery life is great as well. I would highly recommend this rom. People on the board say its one of the most if not the most stable custom rom out there. No issues with radio.

Yup, correct any ROM for the T-MOBILE variant of S3 works, you can even try CM 9 (Cyanogen Mod) or CM10, they work fine as well. As for kernels, I am 99.9% sure all of them work as I tried Trinity, Adama, Morific- all work.

I have "Speed ROM Beta 1" with the following issues:
- Random reboots
- Random prompts for SIM unlock code

Kernels and WiFi

Why do some kernels kill WiFi when flashed. Or is it just a mobile Odin thing
I have also tried to replace the kernel and rezip same issue
Sent from my SPH-L710 using xda app-developers app

Kernels control the hardware functionality. They specify higher-level functions so that the software (Android OS) can properly interact with the hardware. The kernel is what contains the drivers and such that you need for your different radios to work (mobile network [LTE or 3G] and wifi), as well as things like power management and proper boot/shutdown sequences. If its not implemented in the kernel, theres no way any programs can access the higher level functions to get the wifi going, or to get 4G going.
This is also why it's difficult for some devices to get working 4G on android versions past what is officially supported because the 4G drivers have to be written from scratch into the kernel, and they change from version to version. Now its not impossible, but very difficult
Hope that answers your question :thumbup:

CNexus said:
This is also why it's difficult for some devices to get working 4G on android versions past what is officially supported because the 4G drivers have to be written from scratch into the kernel, and they change from version to version. Now its not impossible, but very difficult
Click to expand...
Click to collapse
Knowing this, does that mean TW kernels are better for writing things like 4G? I don't know how to explain my question, I guess I'm asking if TW kernels are more 'compatible' since they're just stock modifications.

OK the reason I'm asking is because of my port of pure aosp the stock CM kernel will not do WiFi but any other kernel will Lean BMS KT
Why work with one ROM but not another.
Sent from my SPH-L710 using xda app-developers app

sevenpioverthree said:
Knowing this, does that mean TW kernels are better for writing things like 4G? I don't know how to explain my question, I guess I'm asking if TW kernels are more 'compatible' since they're just stock modifications.
Click to expand...
Click to collapse
No, what I mean is that once its officially released (for this phone it would be Touchwiz), then that can be incorporated into aosp kernels made for that official version for a specific phone. Both (theoretically) run it just as well, theres no compatibility issues in favor or either. But of course, since TW kernels have been engineered for this phone while AOSP has not, AOSP kernels would require a little more hacking to get it to work, hence possibly degrading the quality of 4G or other radios
bthorne79 said:
OK the reason I'm asking is because of my port of pure aosp the stock CM kernel will not do WiFi but any other kernel will Lean BMS KT
Why work with one ROM but not another.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
My guess would be that the paths for different things arent what its expecting, you would have to split the boot.img and diff the files to find out for sure though

Nice, thanks CNexus, you da man

Wifi broken
So, on a Sprint Galaxy S3, after rooting first with the unified toolkit and finding that my wifi no longer works, I went back to the stock version and found I still had no wifi. Figuring that it's better to be rooted so I can tweak things, I rerooted using QBKing's method (much easier, by the way). Wifi is still broken. Is there not a fix for this yet?
I've got:
Model#
SPH-L710
Android Version:
4.1.1
Baseband Version:
L710VPBLJ7
Kernel version:
3.0.31-CL616748
[email protected] #1
SMP PREEMPT Sat Dec 1 23:25:55 KST 2012
Build#:
JRO03L.L710VPBLJ7
Hardware Version:
L710.14
Because I'm a quiet one, I'm not allowed to comment in the forum that originally started this and I don't have 10 posts yet. So, here I am - sort of on topic and sort of off topic. But the bottom line is, I need to fix wifi since I'm *always* in roaming and connect to the world through my wifi.
So.
Ideas?? Please.
Thanks!
~Jayme

jaymethunt said:
So.
Ideas?? Please.
Thanks!
~Jayme
Click to expand...
Click to collapse
When you rooted, did you install a custom recovery (CWM or TWRP)? Turn off your phone and boot into recovery and see if it's either of those.
You're currently on an out-of-date system. I don't think that's why you don't have Wifi, but I thik it'd be best if you try the latest and greatest.
If you do have a custom recovery, you can flash the stock rooted rom by Freeza. If you don't have a custom recovery, you'd have to re-root and make sure to follow the instructions (including pulling the battery).
If you need help with how to flash a Rom in a custom Recovery, I wrote this up for a thread earlier.
Hope you get your wifi working.

I guess I'm not sure how to answer your questions. I do have ClockWorkMod (that is what CWM means, right?) on right now, yes.
That page you recommended is over-the-top. There's so many choices, I don't know which one to make! I think I want Odex, just because I'm not a developer at this stage. Because I'm starting out with CWM, do I want this one or that one?
MD5: A89894F653099D158C8C459F2B7F656E
MD5: 5C24F1174C40E9B878C7D9BEA75DBFAF
Or am I just completely off target?
Thanks for replying and I hope my wifi gets fixed, too.

jaymethunt said:
I guess I'm not sure how to answer your questions. I do have ClockWorkMod (that is what CWM means, right?) on right now, yes.
That page you recommended is over-the-top. There's so many choices, I don't know which one to make! I think I want Odex, just because I'm not a developer at this stage. Because I'm starting out with CWM, do I want this one or that one?
MD5: A89894F653099D158C8C459F2B7F656E
MD5: 5C24F1174C40E9B878C7D9BEA75DBFAF
Or am I just completely off target?
Thanks for replying and I hope my wifi gets fixed, too.
Click to expand...
Click to collapse
Yes, CWM is ClockWorkMod.
I'd recommend DeOdex Rom, because if it doesn't work, you can still flash mods onto it that might help you out (without reflashing a whole new Rom). If you install the Odex version, you wouldn't be able to flash most mods out there.
I haven't messed around with the "Leaked" build, so I'd personally recommend the latest official, which is the MB1. The link you should be looking for is:
DeOdex:
Sprint Touchwiz Jelly Bean 4.1.2 L710VPBMB1 | Mirror | Mirror 2 (Not yet active)
MD5: 37E1CCCB3A30959C64DF238D0BD2B23C
If you download this file and install it per my previous instructions (that I linked to, make sure to do a Nandroid Backup and to wipe the /system in CWM), Wi-Fi should be working. If it doesn't I might have another thing I'd want you to try, but I'm fairly certain this will do the trick.

THAT worked beautifully. I guess I just needed jellybean. lol. So, I'm rooted, on the latest and greatest, AND I have Wifi! Yae!
Thanks so much for your help!
~Jayme

[Q] Is this the correct rom to install to my device?

Hey, I am new to the forum and this is my first post so the first thing I want to say is HI! I hope to become very active here in the future.
Firstly, I'm pretty new to android and I need someone to clear something for me, Currently I want to install the PAC rom to my T-Mobile galaxy s4, the model number shows up SGH-M919.
I was looking around and I came across this thread: http://forum.xda-developers.com/showthread.php?t=2295673
Further scrolling down, I came across this download link: http://d-h.st/mrL
I downloaded this file but I'm not sure if this is compatible with my phone. T-Mobile SGH-M919, I'd rather not brick my phone.
Can someone please aid me in the process of making sure that this rom is compatible with my device?
Thanks in advance for any help.
Regards, Lelouch.

Lelouch Vi Britannia said:
Hey, I am new to the forum and this is my first post so the first thing I want to say is HI! I hope to become very active here in the future.
Firstly, I'm pretty new to android and I need someone to clear something for me, Currently I want to install the PAC rom to my T-Mobile galaxy s4, the model number shows up SGH-M919.
I was looking around and I came across this thread: http://forum.xda-developers.com/showthread.php?t=2295673
Further scrolling down, I came across this download link: http://d-h.st/mrL
I downloaded this file but I'm not sure if this is compatible with my phone. T-Mobile SGH-M919, I'd rather not brick my phone.
Can someone please aid me in the process of making sure that this rom is compatible with my device?
Thanks in advance for any help.
Regards, Lelouch.
Click to expand...
Click to collapse
You COULD use that as long as you download the correct kernel from here. Or, if you want to skip trying to find the right kernel, you could use this ROM, which is the exact same thing, just built specifically for the m919. The biggest thing to remember is to not flash anything meant for the i9500 (the octa-core version of the S4). Other carrier's S4 ROMs though, just use a T-Mobile M919 kernel and you're good to go. If you don't feel like adventuring outside of the (mostly) absolute safe ROMs, just don't click outside of the current section you're in.

lordcheeto03 said:
You COULD use that as long as you download the correct kernel from here. Or, if you want to skip trying to find the right kernel, you could use this ROM, which is the exact same thing, just built specifically for the m919. The biggest thing to remember is to not flash anything meant for the i9500 (the octa-core version of the S4). Other carrier's S4 ROMs though, just use a T-Mobile M919 kernel and you're good to go. If you don't feel like adventuring outside of the (mostly) absolute safe ROMs, just don't click outside of the current section you're in.
Click to expand...
Click to collapse
I will use the new link with the one designed for the M919 for safety.
Also, I have a question about kernels.
Can you just flash them the same way you do with roms through CWM recovery?
Are kernels and ROMS interchangeable? EX: Kernel A comes with ROM A and kernel B comes with ROM B, Kernel X is stock. Will kernel B And X work with ROM A?

Lelouch Vi Britannia said:
I will use the new link with the one designed for the M919 for safety.
Also, I have a question about kernels.
1Can you just flash them the same way you do with roms through CWM recovery?
2Are kernels and ROMS interchangeable? EX: Kernel A comes with ROM A and kernel B comes with ROM B, Kernel X is stock. Will kernel B And X work with ROM A?
Click to expand...
Click to collapse
1: Yes.
2: Kinda. As I said, you can flash any S4 ROM (minus the i9500 octa-core); just be sure to use the T-Mobile kernel. The only place you will find kernels (on XDA anyway) for the T-Mobile S4 is at that link I provided. To expand, you have to realize that each ROM is either going to be TouchWiz (stock) based or AOSP (CM, ParanoidAndroid, etc) based. The ROM's OP should tell you which they are based upon. Most of the kernels at that link are for either TouchWiz 4.2 (which would be stock TouchWiz or Google Edition 4.2.2), TouchWiz 4.3 (which would be the Google Edition 4.3), AOSP 4.2.2 (which would be CM-10.1 based), or AOSP 4.3 (which would be CM-10.2 based). As long as you match the correct kernel for the correct version of whatever ROM you want to use you will be good.
One comforting fact is that if you happen to forget to flash a TMO kernel (or flash the wrong TMO S4 kernel) after flashing, say, a ROM from the AT&T forum, you're not going to do any sort of permanent damage. You will just be unable to boot. Just go back into recovery, wipe everything, and start over; no harm done.

lordcheeto03 said:
1: Yes.
2: Kinda. As I said, you can flash any S4 ROM (minus the i9500 octa-core); just be sure to use the T-Mobile kernel. The only place you will find kernels (on XDA anyway) for the T-Mobile S4 is at that link I provided. To expand, you have to realize that each ROM is either going to be TouchWiz (stock) based or AOSP (CM, ParanoidAndroid, etc) based. The ROM's OP should tell you which they are based upon. Most of the kernels at that link are for either TouchWiz 4.2 (which would be stock TouchWiz or Google Edition 4.2.2), TouchWiz 4.3 (which would be the Google Edition 4.3), AOSP 4.2.2 (which would be CM-10.1 based), or AOSP 4.3 (which would be CM-10.2 based). As long as you match the correct kernel for the correct version of whatever ROM you want to use you will be good.
One comforting fact is that if you happen to forget to flash a TMO kernel (or flash the wrong TMO S4 kernel) after flashing, say, a ROM from the AT&T forum, you're not going to do any sort of permanent damage. You will just be unable to boot. Just go back into recovery, wipe everything, and start over; no harm done.
Click to expand...
Click to collapse
Thank you very much for your help.
I think I have a better understanding of kernels now, before I only knew how they worked and the way they communicated between hardware and software, etc.
Have a nice night!