Kernel question - Nexus 4 Q&A, Help & Troubleshooting

Hello guys,
Iam new to the Nexus 4 forums. I have experience with other phones with flashing etc. I have a couple of questions:
I flash a kernel(zip) after I flash a ROM. That seems to me the right way. The flashing seems going right but after restarting the phone somewhat stutters, its no lag or something like that.
Iam running PA with now the regular kernel but when I flash Franco or Neo kernel it happens.
Anybody a idea what i am doing wrong?
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Desaf said:
Hello guys,
Iam new to the Nexus 4 forums. I have experience with other phones with flashing etc. I have a couple of questions:
I flash a kernel(zip) after I flash a ROM. That seems to me the right way. The flashing seems going right but after restarting the phone somewhat stutters, its no lag or something like that.
Iam running PA with now the regular kernel but when I flash Franco or Neo kernel it happens.
Anybody a idea what i am doing wrong?
Sent from my Nexus 4 using XDA Premium App
Click to expand...
Click to collapse
For PA use jwr kernels. Not jss. Neo and Franco both have two versions. Jss and jwr.
Sent from my Nexus 10 using Tapatalk 4

Thanks will try
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Desaf said:
Hello guys,
Iam new to the Nexus 4 forums. I have experience with other phones with flashing etc. I have a couple of questions:
I flash a kernel(zip) after I flash a ROM. That seems to me the right way. The flashing seems going right but after restarting the phone somewhat stutters, its no lag or something like that.
Iam running PA with now the regular kernel but when I flash Franco or Neo kernel it happens.
Anybody a idea what i am doing wrong?
Sent from my Nexus 4 using XDA Premium App
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2448795
There's also this zip which allows Jss kernels to be used in jwr roms.
Desaf said:
Thanks will try
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Click to collapse
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Related

What kernel?

Hey everyone... Just got home from buying my nexus 4... rooted a few minutes ago and got pa installed. Some of the kernels I used on my galaxy nexus aren't here which I'm sure will be OK.... Are there any kernels that stand out above the others in any way?
Thanks for the help!
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I'm using Franco Milestone M1 kernel. Seems to be a great combo with PA with about 4.5-5 hrs of SOT. But try other kernel for yourself and see which one is best for you.
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I have tried every kernel here, and the best one that works for me is the enhanced stock kernel. Can under clock, under volt and is the snappiest one . Battery life is good too, plus touch control also works
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EnIXmA said:
I have tried every kernel here, and the best one that works for me is the enhanced stock kernel. Can under clock, under volt and is the snappiest one . Battery life is good too, plus touch control also works
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Click to collapse
Link?
Will this be compatible with 0.33 radio and tmobile lte?
It is the enhanced 4.2.2 stock kernel by Faux, you can download it from the first page of his thread.
Yes, it should work fine with .33 radio and LTE.
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Franco r.111 nightly - http://forum.xda-developers.com/showthread.php?t=2002782
fozzie said:
Franco r.111 nightly - http://forum.xda-developers.com/showthread.php?t=2002782
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Got it thanks. Noob q'n, do i need to erase data/wipe cache prior to flashing a new Kernel?
gecko316 said:
Got it thanks. Noob q'n, do i need to erase data/wipe cache prior to flashing a new Kernel?
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Click to collapse
that has nothing to do with flashing kernels. dont listen to anyone that says they recommend to, theyre clueless. btw, try trinity kernel. and while youre at it, every kernel here is good. find the one that fills your needs and that your device likes best.
OP as pointed out....
Thanks

A question about ROMs and Kernels

Ok, so I've rooted and flashed rasbeanjelly from the nexus4root(dot)com website.
I've set everything up, down loaded apps I want etc, however I've heard that trinity kernel is very good with this ROM, if I'm wrong and there's a better kernel correct me. So how do I install the kernel? Same way I did the ROM? Is it compatible? Do I have to wipe everything? Is there a better kernel to use?
Thanks a lot for reading.
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james99obrien said:
Ok, so I've rooted and flashed rasbeanjelly from the nexus4root(dot)com website.
I've set everything up, down loaded apps I want etc, however I've heard that trinity kernel is very good with this ROM, if I'm wrong and there's a better kernel correct me. So how do I install the kernel? Same way I did the ROM? Is it compatible? Do I have to wipe everything? Is there a better kernel to use?
Thanks a lot for reading.
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Click to expand...
Click to collapse
Just flash the .zip in recovery, no need to wipe anything. There's no 'best' kernel so your question about better kernels could easily get 20 different replies.
Ok thanks for your reply, what about compatibility? I've heard that if ROMs and kernels aren't compatible it can brick your phone
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james99obrien said:
Ok thanks for your reply, what about compatibility? I've heard that if ROMs and kernels aren't compatible it can brick your phone
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Click to collapse
As long as the kernel and ROM you download are for the N4 it should be perfectly fine. In the future with new releases of Android there may be some issues, but devs usually make it pretty clear in the OP what you risk by flashing your phone.
james99obrien said:
Ok thanks for your reply, what about compatibility? I've heard that if ROMs and kernels aren't compatible it can brick your phone
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You heard wrong.
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james99obrien said:
Ok thanks for your reply, what about compatibility? I've heard that if ROMs and kernels aren't compatible it can brick your phone
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Click to expand...
Click to collapse
rasbean and trinity are very compatible
as are all the other nexus 4 kernels.

Issue solved please close

Hey guys I just rooted and installed a few custom ROMs on my n4. When I install a custom 4.3 kernel on any 4.3 ROM I get ridiculous flickering issues. It never happened on stock and only happens on custom ROMs when flashing another kernel. Am I missing something obvious? I have searched for an answer but have come up empty. Any help would be appreciated cuz I really would like to run Franco or faux ( my two favs from my Gnex days). Thanks a lot guys
Edit: sorry I meant to put this in q and a mods feel free to move
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Flash the proper kernel for you ROM hint there are two different builds for 4.3
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I did flash the correct kernel. At least I think I'm running cm 4.3 (jss15j) and I tried flashing faux's latest 4.3 kernel. If that is for some reason incorrect which faux or Franco would u recommend?
Edit. Ahh I see what u mean by two different builds. Thanks I thought there was only one build on 4.3
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[Q] CM 10.2 nightly won't boot after flashing franco r191-JSS

Hello,
I am running CM 10.2 (latest nightly). I flashed the franco kernel r191 for the first time and it bricked the phone. The boot animation won't come up. It gets stuck after the Google logo. I would appreciate if you could help me out. Fortunately, I had a full nandroid backup and was able to recover my phone.
I use the TWRP recovery.
Thanks.
You need to learn what the definition of bricked means.
a bricked phone is worthless and unrecoverable, it makes a great paperweight/door stop. flashing a kernel that wont boot is not bricking a phone, and not close, and there are many ways to recover from a non booting kernel, nandroid restore being one way. you can also just flash a good kernel or your rom to recover.
Thank you for clarifying the definition of brick. I did not know that. Please feel free to chime in regarding my original question. Thank you.
devadam1 said:
Thank you for clarifying the definition of brick. I did not know that. Please feel free to chime in regarding my original question. Thank you.
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What IS your question? From what I've read, you were able to restore your nandroid, right? Just don't flash that kernel if it messes things up.
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try a different franco kernel. are you sure that you pucjed the right kernel? 4.2.2 kernels dont boot on 4.3, and 4.3 kernels dont boot on 4.2.2.
simms22 said:
try a different franco kernel. are you sure that you pucjed the right kernel? 4.2.2 kernels dont boot on 4.3, and 4.3 kernels dont boot on 4.2.2.
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According to the author, I am supposed to flash the one that has a JSS tag in the file name. http://franciscofranco.minooch.com/Nexus4/4.3/zips/
I am sure I downloaded the correct file and flashed the right version. Since I am new here, I am not allowed to post in the original thread, which is here:
http://forum.xda-developers.com/showthread.php?t=2002782
iamterence said:
What IS your question? From what I've read, you were able to restore your nandroid, right? Just don't flash that kernel if it messes things up.
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Click to collapse
I would like to know whether there is a way to flash the franco kernel on CM 10.2. It seems to be buggy. I wanted to post my question here: http://forum.xda-developers.com/showthread.php?t=2002782
But I need at least 10 posts to ask my question there.
devadam1 said:
I would like to know whether there is a way to flash the franco kernel on CM 10.2. It seems to be buggy. I wanted to post my question here: http://forum.xda-developers.com/showthread.php?t=2002782
But I need at least 10 posts to ask my question there.
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Click to collapse
no. custom kernels no longer work on cm properly, if at all.thats probably is the reason why franco kernel wont boot. cm changed their base code from aosp to qualcomm a few weeks ago, and that broke the ability to use custom kernels on cm. custom kernels are based on aosp, and qualcomms code breaks stuff because of it.
Thank you so much! Now I understand why.
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when did this start? currently running cm10.2 and Franco190, now I'm scared to update cm as I need Franco for the battery life
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Started a couple of days ago. Not sure if the r191 is the cause or the cm 10.2 nightly.
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As said previously CM is the cause, Franco still remains AOSP based, you can try hellscore kernel, Google it, it as a nice reputation for amazing battery life and has a CM version of it.
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devadam1 said:
Started a couple of days ago. Not sure if the r191 is the cause or the cm 10.2 nightly.
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it started with a nightly about 2 weeks ago
Thank you! I'll definitely give it a try.
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simms22 said:
it started with a nightly about 2 weeks ago
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You're right. I just installed the nightly later on.
mine is Sept build good thing I didn't update
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albundy2010 said:
You need to learn what the definition of bricked means.
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Click to collapse
simms22 said:
a bricked phone is worthless and unrecoverable, it makes a great paperweight/door stop. flashing a kernel that wont boot is not bricking a phone, and not close, and there are many ways to recover from a non booting kernel, nandroid restore being one way. you can also just flash a good kernel or your rom to recover.
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Click to collapse
Aka: soft brick.
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Endoroid said:
Aka: soft brick.
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I don't even like the way that term is used to be honest. To me a soft brick is more or less something that requires a JTAG.
A bootloop or a failed boot just isn't any type of brick at all really as far as I'm concerned.
You really should change the title of the thread. Franco does great work and really does not need to be slandered. After all cm is preventing your device from booting not Franco's kernel. If you want to rant maybe you could change the title to cm bricked my phone
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Does anyone have a 4.3 custom rom that does not freezes?

Im using PSX rom. while it is a great rom 95% of the time, the other 5% of the time it freezes(well, maybe less, but every time it does it super annoying). The developer of the rom says that this is a common problem of the 4.3 builds. that sounds a little strange to me. While Im probably didnt understand him right, I still see that the latest version of PSX freezes sometimes. so after 4-5 month with that rom, I think it is time to move on. Could you please state which rom you are using, whether or not it freezes, what are its pros and cons, and your final recomandation?
Thanks!!
Cyanogenmod 10.2 nightly running smoothly here. No freezing at all
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Stock ROM, Xposed module, Gravity Box. Let's you configure 95% of the stuff a custom ROM does.
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chrisrozon said:
Stock ROM, Xposed module, Gravity Box. Let's you configure 95% of the stuff a custom ROM does.
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I don't have any freezing issues. There are cases where I install incompatible kernel and it cause the phone to reboot, but is solved by using the stock kernel that come with that rom.
Get PA rom. You won't be disappointed.
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