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[Q] custom ROM boot problem!

Hey everyone,
I'm a new-by to the tech world. I have a "google nexus s" running on ICS 4.0.4, I recently rooted my phone, flashed clockworkmod recovery and tried to install CM9 on my device. After the installation was completed through the clockworkmod, the boot image had showen up and continued to boot throughout the night and never showed up the home screen nor did the custom ROM open itself.
Can anyone give me a lil help as to about what this problem is or the reason why this is happening?
Any help would be really appreciated.
Thanx!

Did you do a full wipe and cache wipe? My suggestion is to do that and reinstall. You could also try a different ROM.

But wouldnt I loose my phone data if I do that?
Sent from my Nexus S using xda premium

i'm having the same problem for every ROM i try on my phone! what to do?

You have a bootloop, this appears because of kernel (boot.img) problems and/or inconsistent cache.
Please wipe/erase cache and Dalvik cache (this can be found in the Advanced menu). Wiping cache partition and Dalvik cache won't erase your personal data.
Make sure the previously flashed CM zip contained a boot.img file. If not, please flash a proper/recommended boot.img (kernel; which is in a zip file) or another rom (with boot.img).

When you flash a new rom over your stock.. first make a backup, then you need to wipe data, cache and dalvik cache..
Sent from my Nexus S using XDA app

Got a backup and mods are running cool! Thanx for the help!
Sent from my Nexus S using xda premium

[Q] Reboot after custom rom update

ok i will start by saying i have searched everything in forums and could not find this problem
my goal is to install CM 10.1 i have followed the official guide on the forums but after it is installed it boots to image that shows CM booting but it takes about 10 min before it just resets and continues this cycle and only way to fix is to do stock firmware via odin after which it works fine i can even flash via CWM but only official firmware will work without this problem can someone help me with this if more info is needed plz tell me i am rather new to forums

Are you wiping everything before you flash?
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spitfire2425 said:
Are you wiping everything before you flash?
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
yes i have wiped cache and dalvik and system

crashburn833 said:
ok i will start by saying i have searched everything in forums and could not find this problem
my goal is to install CM 10.1 i have followed the official guide on the forums but after it is installed it boots to image that shows CM booting but it takes about 10 min before it just resets and continues this cycle and only way to fix is to do stock firmware via odin after which it works fine i can even flash via CWM but only official firmware will work without this problem can someone help me with this if more info is needed plz tell me i am rather new to forums
Click to expand...
Click to collapse
Did you check MD5 before flashing? Could be a bad download.

Usually boot loop issues are due to left overs from your previous rom so,
If you're on CWM recovery , use this ORDER :
1.Reset user data/factory reset
2.Format System
3.Format Data
4.Format Cache
5.Format SD card (back up your important files first)..
Then flash the rom ... Don't wipe dalvik it's already in /data
This applies not just to CM10 , use this procedure to any rom flash or any nandroid restore ...

mahanddeem said:
Usually boot loop issues are due to left overs from your previous rom so,
If you're on CWM recovery , use this ORDER :
1.Reset user data/factory reset
2.Format System
3.Format Data
4.Format Cache
5.Format SD card (back up your important files first)..
Then flash the rom ... Don't wipe dalvik it's already in /data
This applies not just to CM10 , use this procedure to any rom flash or any nandroid restore ...
Click to expand...
Click to collapse
still did not work

You don't have to wipe sdcard
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crashburn833 said:
still did not work
Click to expand...
Click to collapse
In such case,you have a problem somewhere else...Redownload the rom check its md5 and try again...Make sure you're downloading the correct rom for your device...

Cyanogenmod 10.1 installation

Hi there,
I am currently installing Cyanogenmod 10.1 for my HTC Sensation. I'm stuck in the blue circle loading screen. (image below)
I don't know what should I do.
Help will be highly appriciated.
Sent from my HTC One using xda app-developers app

idomohr25 said:
Hi there,
I am currently installing Cyanogenmod 10.1 for my HTC Sensation. I'm stuck in the blue circle loading screen. (image below)
I don't know what should I do.
Help will be highly appriciated.
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
probably you are on S-ON am i right?
if yes use 4ext recovery
enable smatflash from it
flash the rom
done
otherwise flash the boot.img of the rom via fastboot command

My device is S-OFF.
I am trying to flash firmware again, and clear cache and dalvik.

idomohr25 said:
My device is S-OFF.
I am trying to flash firmware again, and clear cache and dalvik.
Click to expand...
Click to collapse
Most of the time there is no need to re-flash firmware. Did you wipe data beforehand? maybe you can try another build (the from an earlier/later date). This might help.

Sometimes a complete wipe is needed...
Hi,
Sometimes when moving from one ROM to another a complete wipe and format of all partitions (except sdcard) is needed in order for it to work. Have you wiped and formatted all your partitions before flashing the ROM? I use Titanium pro to backup my apps before doing this.
You should be able to do this with any of the recovery programs. 4EXT is really good and easy to use for this. Also, if you don't already know this, you should flash the correct GAPPS for your ROM after you install the update. That way you will have everything you need on your first boot after your flash.
Good luck!

when i updated my firmware from 3.32 to 3.33 i got stuck at the same screen. Just booted to recovery and used 4EXT Recovery touch to wipe cache and dalvik, after that everything was fine

[Q] After flash purity rom , it takes forever to first boot up?

Already wipe Factory data, successfully flash purity ROM and gaps. After reboot. It stuck on the logo for 20 mins..... .and now still loading....
I already reboot the phone. Re flash the ROM again twice but the same thing happened
It's it normal? ?

Finally it takes over 50 mins but still in the four color circles.... I reboot and restore backup from cwm. (Lucky I backup before flash!!)
I am running on stock rom with franco r16 kernel.
Sent from my Nexus 5 using xda app-developers app

I did not have a issue flashing latest purity clean install. Maybe a bad download/md5...

A bad download can finish installation also ?
Sent from my Nexus 5 using xda app-developers app

did you wipe data/factory reset before flashing? you have to..

First install was a dirty flash but second time already wiped.
Do I need to wipe dalvik cache also ?
Sent from my Nexus 5 using xda app-developers app

Yes if you only did Data...

if you were already on purity than a dirty flash will suffice.
if you were not on purity then you need to perform a full wipe (data, system, dalvik, cache).
EDIT: i had typed full backup above. i obviously meant full wipe.

Thx .
So I need to "wipe data / factory reset" & "wipe dalvik cache " in cwm recovery , then flash new purity rom
Will it erase my files in sd storage ? eg mp3, jpeg movies ?
Sent from my Nexus 5 using xda app-developers app

patkylie said:
Thx .
So I need to "wipe data / factory reset" & "wipe dalvik cache " in cwm recovery , then flash new purity rom
Will it erase my files in sd storage ? eg mp3, jpeg movies ?
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
make a backup. make sure you have a copy of everything you want to save/keep on your computer. full wipe (twrp = data, system, dalvik, cache. cwm = wipe data, wipe cache, wipe dalvik, format /system). flash rom and gapps.
when you're coming from the stock firmware or a different rom, you have to perform a full wipe before flashing.

Use all yours methods. (Wipe issues) And still not able to boot up. Not the issue of gapps. Coz I only flash the purity rom, and reboot, but still stuck in the four color circle for over 15 mins.
Finally I decided to give up and return to stock ROM.
Sent from my Nexus 5 using xda app-developers app

Same Issue.
OMG! I though I was the only one facing this issue.
This has happend to me exactly as mentioned on the first post.
I was using purity Rom from 08/01 build & with every update I never had any problem But recently I decided to erase everything & do a factory Image procedure which obviously erases everything.
So after factory image I wanted to return to purity Rom & got stuck on booting logo for ever.
I followed the steps exactly the same as mentioned in above post.

[Q] Fixing A Messed Up Flash

So I flashed a custom ROM and did the usual steps. Install, wipe caches, etc., and the ROM itself loads. It's a custom 4.4.2 ROM for GT-P31XX and I used CWM 6.0.4.5 recovery to flash it. Problem is that when I boot, I get to the lock screen but System UI, Settings, and AOSP Keyboard always fail. I can't seem to boot into recovery any more but I want to install a different ROM or reinstall stock JB and start over. How would I go about fixing this situation?

Okay, I can boot into recovery actually.

KingMotion said:
Okay, I can boot into recovery actually.
Click to expand...
Click to collapse
Did you wipe everything first then install? Because you want to wipe, install, boot. Cache, dalvik, data, system are the main ones, always wipe these when flashing a new ROM.
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