Develop Bugs

Cyanogen boot loop

i have googled this and tried multiple ways of installing it but i always get a boot loop. Whats going on?

Hey if you just want to get your phone back again, just flash another firmware from the one you used. Should start up just fine.

have done already but i actually want to install cyn mod. I managed to get as far as the main screen buit then immediately reboots. I cant find wifi modules for latest doom kernel either they arent in his thread.

FLASH KERNEL FIRST (from cyanogenMOD or doomkernel for CM7 etc)
Than flash cyanogenMOD
any other way will make your phone bootloop.

I think you have to unlock BL via SE in order to flash CM..
of course you would likely broke your warranty.
this based on my experience (I'm a newbie too in the android's world). this is what I've done :
1. unlock BL via SE (not all carriers allowed this!)..
2. flash .42 fw
3. follow the instructions given on CM thread by fxp.
it's worked for me.
goodluck.

I've had this problem before. Did you wipe the delvic cache, wipe data/factory reset and wipe cache partition in CWM before you flashed the update.zip?

It would seem it was a specific version of cm that was making it bootloop the one from dooms thread 7.2.0 works fine and also the one before the latest stable release also worked fine. I however found a problem with the spacebar on the keyboard when using the phone in landscape so am now going to try arconium and doom kernel its a shame really because cm from what i used of it looked really nice.

Try 7.1.0.1.
I got bootloop too with 7.1.0.2

Kuroyukii said:
Try 7.1.0.1.
I got bootloop too with 7.1.0.2
Click to expand...
Click to collapse
Aye thats the one i used but ended up having a problem with the spacebar not working in landscape so am on acronium now which is all good but superuser keeps crashing meh always something eh.

at first im also having the same problem,just follow the instruction by FXP : flash bb56,flash fw.42,flash FXP kernel via fastboot,flash update via recovery,wipe dalvik cache,reboot..
Sent from my LT18i using Tapatalk

I have this exact same problem
I've done everything I was supposed to, I think, and still doesn't work. It boots, shows me the little Android "Welcome!" screen, and before I have time to press anything or begin setting up my device, it reboots into the Cyanogenmod loading screen. I've tried different kernels, different basebands, every time wiping Dalvik cache, etc. and it REFUSES to work. I'm pretty desperate by now because I really wanted to use this ROM so any help is greatly appreciated.
I also followed precisely rashid.fairus' instructions and it still does the exact same thing.

You need to Wipe Data, Cache and Dalvik ----- BEFORE AND AFTER FLASH
I do this here, and positive feedback

Velcis Ribeiro said:
You need to Wipe Data, Cache and Dalvik ----- BEFORE AND AFTER FLASH
I do this here, and positive feedback
Click to expand...
Click to collapse
Sometimes you DON'T WIPE ANYTHING AT ALL. Just flash CM and Google.
Works for me on Xperia Acro S.

gabantarung said:
Sometimes you DON'T WIPE ANYTHING AT ALL. Just flash CM and Google.
Works for me on Xperia Acro S.
Click to expand...
Click to collapse
Only when you upgrade to a later version of the same ROM.
Sent from my Xperia Arc S using xda premium

Velcis Ribeiro said:
You need to Wipe Data, Cache and Dalvik ----- BEFORE AND AFTER FLASH
I do this here, and positive feedback
Click to expand...
Click to collapse
Wipe dalvik and cache when upgrading to later version, wiping data will reset phone to factory settings and you lose all personal data.
僕のLT18iから送られてきた

No rom will boot after a reboot!

Gee, I'm going crazy! Yesterday, I tried CM7(FXP117 and Nightly), and after I restored apps and set up everything, I rebooted the phone, then it stucked after boot animation, black screen.
Now I installed SE.Tweaked(Gingerbread), and it's doing the same!
What to do? Tried wiping cache, dalvik and data, but still not working! I have also tried different kernels!
Thanks for help!

Which kernel do you use?

Crenshaw-PCGH said:
Which kernel do you use?
Click to expand...
Click to collapse
Tried a bunch of them. Including various builds of DoomKernel.

Did you tried to flash the stock rom again?

Crenshaw-PCGH said:
Did you tried to flash the stock rom again?
Click to expand...
Click to collapse
Yeah, tried everything(kernel reflash, wiping etc.)

Try flashing a stock gb firmware with flashtool then use cwm.
sinkster©

Using CWM select, format /system
Thank flash a new fresh rom, with correct kernel.

[Q] Boot Loop, Need help!

i have been running the kiss kernel for a while now, last night i tried to flash the hellboy kernel and retern to my pacman rom. but it still boots, i have cleared all my caches formated everything but my sd card, have tried flashing all kiss kernels and multipul hellboy kernels, but never gets passed the boot screen.. any ideas?

i managed to get it to the android is upgrading.. starting apps thing, but it gets stuck there.

Did you wipe anything when you flashed the kernel? If the kernel was for jellybean it shouldn't hang like that... not sure?

lilrob1213 said:
Did you wipe anything when you flashed the kernel? If the kernel was for jellybean it shouldn't hang like that... not sure?
Click to expand...
Click to collapse
yeah i wiped the cache, devlink cache, data, system, and a factory reset, been trying to figure it out all day but have not made much improvement

JARR3DF15CH3R said:
yeah i wiped the cache, devlink cache, data, system, and a factory reset, been trying to figure it out all day but have not made much improvement
Click to expand...
Click to collapse
and you installed a rom after wiping those things right? I'm assuming... but just wondering. What rom did you flash and are you CDMA virgin mobile?

lilrob1213 said:
and you installed a rom after wiping those things right? I'm assuming... but just wondering. What rom did you flash and are you CDMA virgin mobile?
Click to expand...
Click to collapse
yeah i installed it after, pacman http://forum.xda-developers.com/showthread.php?t=1948770&page=12
im with telus gsm. the rom was working fine, but i went to change the kernel to hellboy cause i herd it was a bit better and now im in this bootloop

also not running the newest version of that rom, i am running v15a

Oh okay wellllll I'm on virgin mobile and I don't know much about the primou phones and rom and kernel compatibility so I'm afraid I'll have to leave this to someone who knows more... good luck to you though... maybe try booting into bootloader from the recovery and flash the boot.img you had before then flash the rom again?

lilrob1213 said:
Oh okay wellllll I'm on virgin mobile and I don't know much about the primou phones and rom and kernel compatibility so I'm afraid I'll have to leave this to someone who knows more... good luck to you though... maybe try booting into bootloader from the recovery and flash the boot.img you had before then flash the rom again?
Click to expand...
Click to collapse
thanks anyways, ill be sure to give that a try:silly:

Did u wait Little longer time while first boot???? Choose latest kernel n flash. .
Hit thanks if I helped u!!!

bahubali67 said:
Did u wait Little longer time while first boot???? Choose latest kernel n flash. .
Hit thanks if I helped u!!!
Click to expand...
Click to collapse
yeah i always wait a little while, i have chosen latest kernel, has not made a difference, i have gotten better results using an older one of the titanium kiss, hellboy doesnt seem to work with my phone for some reason

Did you use the command
fastboot flash boot boot.img or just
fastboot boot boot.img?
Also,after flashing it,does the terminal say something like this?
Okay.
Okay.
Finished.
Edit:also,see that you are flashing the kernel in the fastboot screen(where it says 'fastboot usb'),and not in the Hboot(bootloader) screen.

mihirengg19 said:
Did you use the command
fastboot flash boot boot.img or just
fastboot boot boot.img?
Also,after flashing it,does the terminal say something like this?
Okay.
Okay.
Finished.
Edit:also,see that you are flashing the kernel in the fastboot screen(where it says 'fastboot usb'),and not in the Hboot(bootloader) screen.
Click to expand...
Click to collapse
i am using the all in one tool kit to flash my kernel, yes i am in fastboot, a window pops up runs through code and my phone reboots, i have changed the kernel on it before, but for some reason this time it wont boot properly at all, the phone is currently at the " android is upgrading" screen, it was the starting apps box with the spinning circle

if you say that it is stuck at android is upgrading - that's because the dalvik works and it is deodexing your gapps.
so i suppose you flashed kernel, flashed rom and gapps and rebooted. well this works from time to time but you have to reboot between flashing rom and gapps.
1. download this kernel: hellboy
2. go to bootloader and flash the kernel.
3. go to recovery and: do a factory reset + wipe system - no need for wiping dalvik or cache cause factory reset does them both.
4. flash your rom
5. reboot.
6. if it boots properly, reboot to recovery and now flash GAPPS package.

1ceb0x said:
if you say that it is stuck at android is upgrading - that's because the dalvik works and it is deodexing your gapps.
so i suppose you flashed kernel, flashed rom and gapps and rebooted. well this works from time to time but you have to reboot between flashing rom and gapps.
1. download this kernel: hellboy
2. go to bootloader and flash the kernel.
3. go to recovery and: do a factory reset + wipe system - no need for wiping dalvik or cache cause factory reset does them both.
4. flash your rom
5. reboot.
6. if it boots properly, reboot to recovery and now flash GAPPS package.
Click to expand...
Click to collapse
thank you so much 1ceb0x! my phone has been in this bootloop for an entire 24 hours,

1ceb0x said:
if you say that it is stuck at android is upgrading - that's because the dalvik works and it is deodexing your gapps.
so i suppose you flashed kernel, flashed rom and gapps and rebooted. well this works from time to time but you have to reboot between flashing rom and gapps.
1. download this kernel:
2. go to bootloader and flash the kernel.
3. go to recovery and: do a factory reset + wipe system - no need for wiping dalvik or cache cause factory reset does them both.
4. flash your rom
5. reboot.
6. if it boots properly, reboot to recovery and now flash GAPPS package.
Click to expand...
Click to collapse
hey icebox, i have the same problem, stuck on pacman logo
can you tell me which hellboy kernel should i use?
i've flashed the 1st one on the mediafire list. thanks!

chikuera said:
hey icebox, i have the same problem, stuck on pacman logo
can you tell me which hellboy kernel should i use?
i've flashed the 1st one on the mediafire list. thanks!
Click to expand...
Click to collapse
Thats the old version.... See the changelog code and flash dat in future..... Right now.... Here u go....
http://www.mediafire.com/?waggdha1ir1lxz0

Problem with wiping dalvik cache [XperiaS]

Hi!
Sometimes i cant wipe dalvik.
For example - used XZXperience 1 and wanted to install XZX2, tried to wipe dalvik (can wipe other stuff), but cant, just nothing happens when click on Wipe dalvik.
Using KA kernel 8
Only solution is to flash stock firmware and do all process again, what im doing right now

martin366 said:
Hi!
Sometimes i cant wipe dalvik.
For example - used XZXperience 1 and wanted to install XZX2, tried to wipe dalvik (can wipe other stuff), but cant, just nothing happens when click on Wipe dalvik.
Using KA kernel 8
Only solution is to flash stock firmware and do all process again, what im doing right now
Click to expand...
Click to collapse
for me XZX1 to XZX2 is fine.
I never happen this.
Flash CWM again??

quezacotl0215 said:
for me XZX1 to XZX2 is fine.
I never happen this.
Flash CWM again??
Click to expand...
Click to collapse
Tried, not helping.

Try manually by:
Using a file explorer go to data>dalvik-cache and wipe everything reboot to recovery and to what you need there
Sent from my Xperia S using xda app-developers app

flash ics17 kernel, then try again.
Sent from my LT26i using xda premium

Same prob.

This problem related to the kernel you are using.. flash Advanced Stock ICS or Stock+ Kernel and then try again.

I tried, it wont help. Still cant accsess dalvik cache wiping.
Like i sayed: only solution is to flash stock firmware, then root it, and then works. If i flash KAv8 or other stock ICS kernels, then problem comes back.

Go to recovery ,advanced option and mount cache. Than try it again.

CWM Problem please help!

I have .55 Xperia SL locked BL, rooted and installed CWM.
The problem is every time I go to CWM, and tried wipe Cache/data or format system, it is always failing to wipe.
and it will be stock on SONY logo after I restart system.Thank god I can still install stock 4.0.4 using flashtool.
Please help.
Thanks!

Which recovery do you install?
Can you use CWM to flash zip files?

mishap13 said:
I have .55 Xperia SL locked BL, rooted and installed CWM.
The problem is every time I go to CWM, and tried wipe Cache/data or format system, it is always failing to wipe.
and it will be stock on SONY logo after I restart system.Thank god I can still install stock 4.0.4 using flashtool.
Please help.
Thanks!
Click to expand...
Click to collapse
If you have a locked BL, I assume that CWM is installer onto the /system partition. So, if you try to wipe /system, it fails.But I think it should work for the cache...

mat2057 said:
If you have a locked BL, I assume that CWM is installer onto the /system partition. So, if you try to wipe /system, it fails.But I think it should work for the cache...
Click to expand...
Click to collapse
Here, try using this CWM - http://forum.xda-developers.com/showthread.php?t=1939875
BTW, if you wipe /system then it should not give you any error because CWM is loaded into the ram. Once you reboot though, you will lose CWM.
Sent from my LT26i using xda app-developers app

It's the same for me. Locked bootloader, .55 ICS.
Downloaded a ROM, rebooted into CWM, wiped data, cache, dalvik cache and then formatted /system.
Then tried to flash the ROM and only after about 5 seconds it said that it's done.
Got stuck at sony logo when rebooting, couldn't enter CWM, too.
I did this even twice and both times the there was the same result. So I had to flash the official firmware via flashtool.
So, do I have to flash a clean official ICS firmware, root it and then without any wiping in CWM, simply flash the custom ROM?
Such a noob with my XS, although I modded my previous device a lot.

abcdjdj said:
Here, try using this CWM - http://forum.xda-developers.com/showthread.php?t=1939875
BTW, if you wipe /system then it should not give you any error because CWM is loaded into the ram. Once you reboot though, you will lose CWM.
Sent from my LT26i using xda app-developers app
Click to expand...
Click to collapse
Thank you for the correction. I once used CWM on my locked BL Xperia S and I had an issue with the /system partition. Maybe I did something wrong (but now my BL is unlocked )