[Q] Bootloop for unknown reason after install CM11 M3 :/ - Nexus 5 Q&A, Help & Troubleshooting

Hi, I'm using Google Nexus 5 from LG Electronics.
Model number in box says it's LG-D821.
Anyway, I'm having trouble with installing CyanogenMod11 on my Nexus 5.
It's not the fist time I installing after-market firmwares in Android device.
I unlocked bootloader via fastboot, installed latest ClockWorkMod non-touch recovery.
Then I installed CyanogenMod11 with ADB sideload, wiped out my data(a factory reset) just for sure.
Also, Installed Google Apps from goo.im/gapps.
I thought it was done, so I rebooted my phone. But it bootloops for 10 minutes.
Checked MD5...nothing is wrong. Downloaded the latest CM11 nightly...bootloop!
What should I do?

I think the order is:
- factory reset
- flash cm
- flash gapps
- reboot
just make sure you have everything backed up (especially EFS backup off the phone - read about it). you could then go back to stock (by flashing factory image), do a full stock boot, copy the CM nighly zip, go back to boot loader flash the recovery of your choice, and follow the cm flashing guide from the internal memory.

YB EDISON said:
Hi,
Then I installed CyanogenMod11 with ADB sideload, wiped out my data(a factory reset) just for sure.
Also, Installed Google Apps from goo.
Click to expand...
Click to collapse
Try to install with zip "choose zip from sd card" it may be solved....and again wipe data-cache-dalvic-cache
Sent from my Nexus 5

OK, I'll try that
rahil3108 said:
Try to install with zip "choose zip from sd card" it may be solved....and again wipe data-cache-dalvic-cache
Sent from my Nexus 5
Click to expand...
Click to collapse
I tried wiping data, cache.
Dalvik-cache is included in data, (/data/dalivk-cache).
You don't have to wipe it manually if you wiped data partition.
I'll try installing CM11 using choose zip from sd card.
Thanks!

YB EDISON said:
I tried wiping data, cache.
Dalvik-cache is included in data, (/data/dalivk-cache).
You don't have to wipe it manually if you wiped data partition.
I'll try installing CM11 using choose zip from sd card.
Thanks!
Click to expand...
Click to collapse
I know that when u wipe data/factory reset automatically cache and dalvic cache got wiped but most of devs suggest to wipe them manually cause u dont know whether recovery is stable or not ...so i wipe my data-cache-dalvic cache manually and it works with me every time
Sent from my Nexus 5

If your using a custom kernel make sure its caf I had the same issue didn't know
Sent from my Nexus 5 using xda app-developers app

Also ensure you're flashing the correct version of gapps
Sent from my Nexus 5 using Tapatalk

Related

[Q] CM7 with gapps built in?

Hi all,
on my very first flash of CM7, I had to install gapps. All worked well and I was happy.
Since then, every time I flash CM7, I get gapps already installed (yes I wiped all, yes I cleared dalvik cache, I even did the lock/unlock thing in order to clear all data).
I somehow get the feeling that my flashes are not a "clean" install.
did anyone else experience this as well?
thanks...
On your first time on CM7, wipe everything, flash cm7, flash gapps. When you want to update cm7, jus wipe cache and dalvik, then flash the updated cm7. No need to reflash gapps, no need to do a full wipe either.... unless you want to.
-Nexus S
So you mean that from now on. Gapps will always be installed? Even after full wipe/ factory settings?
Sent from my Nexus S using XDA Premium App
asafru said:
So you mean that from now on. Gapps will always be installed? Even after full wipe/ factory settings?
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
That's not what he meant. He meant that if you are upgrading CM7, you do not need a full wipe at all.
But after a full wipe your Gapsps should be gone. It's weird that it is still there after a wipe. :S
It's still there after a wipe... is there a way to make sure I full wipe correctly?
Sent from my Nexus S using XDA Premium App
asafru said:
It's still there after a wipe... is there a way to make sure I full wipe correctly?
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
Wipe Factory/Dalvik/Cache: Full Wipe
Wipe Factory: Removes Apps + Settings
Wipe Dalvik/Cache: Wipes the cache but your apps + settings remain.
Wiping factory will delete your Gapps.
Proper way to flash CM7:
1. Wipe Factory/Dalvik/Cache
2. Flash CM7
3. Flash Gapps
4. Flash Kernel (Optional)
5. Reboot
Proper way to upgrade
1. Wipe Dalvik/Cache (Optional)
2. Flash Kernel (Optional)
3. Flash CM7
3. Reboot
asafru said:
So you mean that from now on. Gapps will always be installed? Even after full wipe/ factory settings?
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
Upgrading to newer versions will now keep all your data in tact, so gapps will be there etc.
great, I think it's all sorted out now.
just one question though, I've read that CWM dalvic cache wipe doesn't work. Is that true?
If so, what is the best way to wipe dalvic cache and do factory reset (fastboot/adb commands are also welcome..)
asafru said:
great, I think it's all sorted out now.
just one question though, I've read that CWM dalvic cache wipe doesn't work. Is that true?
If so, what is the best way to wipe dalvic cache and do factory reset (fastboot/adb commands are also welcome..)
Click to expand...
Click to collapse
It works. Somebody confirmed this, the error that pops up during CWR is SD EXT.
You can check for yourself, run a logcat (search the forum) while the phones booting.

[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?
Sent from my SAMSUNG-SGH-I727 using xda premium
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
Sent from my SGH-I727 using xda premium
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...

[Q] HTC ONE S Don't install another rom

Hi
I have htc one s. I did the bootloader and root device the install miui rom.
now install another rom. install the another rom successfully but MIUI phone with the opening.
what should I do?
Did you do a full wipe before you installed the other ROM?
Sent from my One S using xda premium
dwarriors1987 said:
Did you do a full wipe before you installed the other ROM?
Sent from my One S using xda premium
Click to expand...
Click to collapse
how is it full wipe
desertm said:
how is it full wipe
Click to expand...
Click to collapse
In recovery before you install the rom you have to have to go to wipe. You wipe all user data, reset it to factory settings, and then wipe the cache. Then try flashing your rom
I did factory reset and wipe user all data, wipe cache, calvin cache, fix permission then flashing rom in sdcard but receive error can't mount sdcard. restart the phone start miui rom
Boot into Recovery and try to mount your sdcard. Connect your One S via USB. You have to install HTC Sync Manager to get the proper drivers! Plus, dont connect it to a USB 3.0 port (in case you have one). For me it only does successfully mount with USB 2.0 ports. Anyways,try that and backup all your photos,music etc. Then try to format your entire sdcard. Put the ROM on it again,fullwipe and flash the ROM. If the error still occurs please tell us which Recovery you use. I had heavy problems with some TWRP versions and could not install anything till i installed the right version of TWRP (older one).

[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.

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