[Q] Wi-Fi problem after switching kernels - Nexus 4 Q&A, Help & Troubleshooting

Hi i can't power on wi-fi. I had franco kernel r156 and now faux123 turbo. Before installing the faux kernel, i wiped davlik and cache partion and after this, i installed it. I tried again franco kernel but the problem is still here..

Anndrey7 said:
Hi i can't power on wi-fi. I had franco kernel r156 and now faux123 turbo. Before installing the faux kernel, i wiped davlik and cache partion and after this, i installed it. I tried again franco kernel but the problem is still here..
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Try formatting system as well, then reflash the new kernel.

i have installed stock rom, kernel and cwm.. and now it works.

btw, wiping dalvik and cache for a kernel issue does nothing, and is pointless. the dalvik and cache have nothing to do with kernels and are completely unrelated.

Related

Factory Reset

In my small small experience, All Stock Roms (as listed by dr.ketan, somewhere else in this forum) after flashing thru PCOdin are safe for Factory Reset/Wipe data and Wipe Cache Partition. Only after that Abyss Kernel should be flashed. However after flashing leaked ICS Roms thru CWM should not be Factory Res/Wipe Data and Wipe Cache Partition. Please correct me whatsoever, if am wrong and suggest. Thanks.
dsmas said:
In my small small experience, All Stock Roms (as listed by dr.ketan, somewhere else in this forum) after flashing thru PCOdin are safe for Factory Reset/Wipe data and Wipe Cache Partition. Only after that Abyss Kernel should be flashed. However after flashing leaked ICS Roms thru CWM should not be Factory Res/Wipe Data and Wipe Cache Partition. Please correct me whatsoever, if am wrong and suggest. Thanks.
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You can "Factory Res/Wipe Data and Wipe Cache Partition." on ICS ROMS if you first flash the abyss kernel. DON'T EVER factory reset/wipe on stock kernels.
Also why would you flash leaked ics roms when Samsung released OFFICIAL roms?
wiping on Stock ICS kernel can be fatal to your phone ,be very careful ,flash the latest franco kernel ,or speed mode kernel as they are safe to wipe from and can function perfectly with ICS ROMs from samsung.
MR.change said:
wiping on Stock ICS kernel can be fatal to your phone ,be very careful ,flash the latest franco kernel ,or speed mode kernel as they are safe to wipe from and can function perfectly with ICS ROMs from samsung.
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So on franco's kernel we can wipe, backup, restore, etc as we normally would using cwm?
I think after rooting, No Factory reset. By the way what is the thump rule? When to Factory reset and when we should not?
There's no rule as such.
Use safe kernel and do whatever you please, just make sure you are on safe kernel when you play with recovery.
Att.Fan1982 said:
So on franco's kernel we can wipe, backup, restore, etc as we normally would using cwm?
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on latest franco and speed mode kernel ,and pretty much any kernel that has MMC_CAP_ERASE disabled ,it's safe to do what ever you want
just make sure you are on such a safe kernel first ,people have bricked because they thought they were on a safe kernel when in fact they weren't.
dsmas said:
I think after rooting, No Factory reset. By the way what is the thump rule? When to Factory reset and when we should not?
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thumb rule is to be on a safe kernel ,and then do what ever you want.

Franco Kernel on CM10.1

What do I have to do in order to flash franco's kernel coming from STOCK other than wiping cache and dalvik cache?? I already have franco running on stock do I just flash CM wipe both caches boot into CM go back into recovery and then flash Franco and wipe both caches again?? Any help is MUCH appreciated Sorry for the noob question I am still learning
Raphael17 said:
What do I have to do in order to flash franco's kernel coming from STOCK other than wiping cache and dalvik cache?? I already have franco running on stock do I just flash CM wipe both caches boot into CM go back into recovery and then flash Franco and wipe both caches again?? Any help is MUCH appreciated Sorry for the noob question I am still learning
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Stock being stock Google?
Wipe data/factory reset,
Flash CM10,
Flash Franco.
Skip wiping caches altogether, no need to reboot in between flashing the ROM and the kernel.
If cm is already installed, you don't need to wipe anything if it's just the kernel. Just make sure you always have a recent nandroid
Sent from my Nexus 4 using xda app-developers app
dont have to wipe anything, just flash it over.
note that when you flash a new nightly of cm, you will need to reflash the kernel.
Is there a list of supported devices somewhere so I can check to see if my LG E975 is supported?
Thanks!
Sent from my LG-E975 using Tapatalk 4 Beta

*Kernel flashing question *

When flashing to a new kernel, do I need to write my device or can I just flash from where I am? Currently I'm on matr1x kernel and I want to go to Franko's kernel. I was planning on wiping the dalvik cache but not factory reset. I'd rather not lose all my apps and settings if I can help it. Any ideas?
Sent from my Nexus 4 using xda premium
Just wipe cache and dalvik and your set to go!
Sent from Nexus 4
itpromike said:
When flashing to a new kernel, do I need to write my device or can I just flash from where I am? Currently I'm on matr1x kernel and I want to go to Franko's kernel. I was planning on wiping the dalvik cache but not factory reset. I'd rather not lose all my apps and settings if I can help it. Any ideas?
Sent from my Nexus 4 using xda premium
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You don't need to factory reset when flashing kernels just wipe cache and dalvik and you'll be fine. Note it might take a little longer to boot because it will be building up cache since you just wiped it.
No need to wipe anything. No cache or dalvik needed either. You just flash and boot!
BUT! When you are using a custom kernel that uses custom ramdisk (ex. Franco), you need to flash the kernel from your ROM first. (I usually just backup only my boot image in TWRP so I can go back and forth between kernels) If you don't, the phone might not boot (will boot to bootloader, which in that case, you can fix the problem)
Also, make sure that you don't overclock too much and expect bugs from nightly releases (a lot of kernels are in nightly version right now, but Franco seems to reach milestone soon). You might not experience any bugs, but you never know.
you should be able to do that
if it is just a zip, you should be able to flash it right across in the recovery.
I just did that an hour ago, it kept everything except the kernel.
itpromike said:
When flashing to a new kernel, do I need to write my device or can I just flash from where I am? Currently I'm on matr1x kernel and I want to go to Franko's kernel. I was planning on wiping the dalvik cache but not factory reset. I'd rather not lose all my apps and settings if I can help it. Any ideas?
Sent from my Nexus 4 using xda premium
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Do flashing kernels and wiping cache wipe data?

Hi, I own a Nexus 4, just a quick nooby question..
Will flashing a custom kernel (thinking of Faux or Franco) and wiping cache and dalvik wipe data? The main reason I want to flash a custom kernel is to underclock to save battery life, and do these have profiles so I can leave it on low clock over night and normal clock during the day?
isnip said:
Hi, I own a Nexus 4, just a quick nooby question..
Will flashing a custom kernel (thinking of Faux or Franco) and wiping cache and dalvik wipe data? The main reason I want to flash a custom kernel is to underclock to save battery life, and do these have profiles so I can leave it on low clock over night and normal clock during the day?
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Just flash the kernel dont wipe anything.. kernel never need flashing unless stated in op.
Rohit02 said:
Just flash the kernel dont wipe anything.. kernel never need flashing unless stated in op.
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Thanks for clarifying but in the OP it says to wipe the cache partition and dalvik cache, and I meant from recovery not flashing, sorry haha. a little more clarification ;(
isnip said:
Thanks for clarifying but in the OP it says to wipe the cache partition and dalvik cache, and I meant from recovery not flashing, sorry haha. a little more clarification ;(
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Same answer, you don't need to wipe anything in recovery if you're flashing a kernel. And wiping cache and dalvik will not wipe your data
Sent from my Nexus 5 using XDA Free mobile app
you never ever have to wipe anything when flashing kernels. never. wiping dalvik/cache before flashing a kernel is the same as wiping your butt to fill your car up with gas. its just not needed. and for all those that write it in their op, they just dont know better.

[Q] kernel ruind my device

i installed a franco kernel and than i got into recovery mod and wiped data chach and devlik chach in order to unistall the kernel. i installed a metr1x kernel and my phone stuck on google and dont turn on what to do?????
NEXUSKILLER123 said:
i installed a franco kernel and than i got into recovery mod and wiped data chach and devlik chach in order to unistall the kernel. i installed a metr1x kernel and my phone stuck on google and dont turn on what to do?????
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Your device is not ruined. Just reflash your ROM, reboot, and then flash your new kernel of choice.
NEXUSKILLER123 said:
i installed a franco kernel and than i got into recovery mod and wiped data chach and devlik chach in order to unistall the kernel. i installed a metr1x kernel and my phone stuck on google and dont turn on what to do?????
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Click to collapse
do you really think that you uninstalled the kernel by wiping the caches????
Sent from my Nexus 4 using Tapatalk
lmao!
dalvik and cache have NOTHING to do with kernels. your cache and dalvik have everything to do with your apps. just flash another kernel.

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