can we flash Cm12 over Cm 11? - Nexus 5 Q&A, Help & Troubleshooting

can i flash cm12 nightly directly over cm11 without wiping data?
i ve previously flashed like this on earlier nightly of cm 11 it has gone crazzy all apkz gone forced stop

Yes, just flash.

experience7 said:
Yes, just flash.
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Click to collapse
Is that wise? Going from a KK based rom (CM11), to a L based rom (CM12)?
I'd advise user to wipe data, maybe even update to stock LRX22C and from there, flash twrp and cm12.

If he has a clean CM11 installation he can easily flash CM12 without wiping anything.
If you're on stock ROM and apply the OTA update you're also going from KitKat to Lollipop without wiping anything.

Official statement:
You can flash CM12 nightlies directly from CM11 M12 or CM 11 nightlies (no need to wipe), provided you read and followed items 1 and 2
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http://www.cyanogenmod.org/blog/the-l-is-for-lollipop

beekay201 said:
Is that wise? Going from a KK based rom (CM11), to a L based rom (CM12)?
I'd advise user to wipe data, maybe even update to stock LRX22C and from there, flash twrp and cm12.
Click to expand...
Click to collapse
The OP's question was whether you could flash CM12 over CM11, not whether or not it would boot up

@Lethargy: That answer made my day :'D

Related

Unable to flash cm12 official rom on moto g gpe

I am unable to flash cm12 rom on moto g gpe as it was already on android stock 5.0.1 .But when im trying to flash cm11 latest nightly it works and when i trying to flash cm12 ooficial rom it says error and getting failed ,i tried on many recoveries .pls help me out and im tried of trying .....................
Can you check something out? Flash cm11 and the dirty flash cm12 that must work
i tried but didn't workout and in cm11 it shows no updates available.....
karthik432 said:
i tried but didn't workout and in cm11 it shows no updates available.....
Click to expand...
Click to collapse
No. Download the CM12 separately and dirty flash it from recovery over CM11.
SaurabhSandav said:
No. Download the CM12 separately and dirty flash it from recovery over CM11.
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i tried but it stops in middle and says error and what to do

guide me installing Custom Roms

hello everyone
I have XT926 (verizon one)
my phone system version is 183.46.10
I have rooted my phone using towelroot and unlocked bootloader
now whats next?
latest firmware update (183.46.15) notification is bugging me, should i install it through ota in this condition or directly move to installing custom roms. if install this ota without unrooting, will my phone enter bootloop?
which recovery is recommended for android 5.0 on kk bootloader.
faheemakbar18 said:
hello everyone
I have XT926 (verizon one)
my phone system version is 183.46.10
I have rooted my phone using towelroot and unlocked bootloader
now whats next?
latest firmware update (183.46.15) notification is bugging me, should i install it through ota in this condition or directly move to installing custom roms. if install this ota without unrooting, will my phone enter bootloop?
which recovery is recommended for android 5.0 on kk bootloader.
Click to expand...
Click to collapse
Here ist what i have experienced:
I was on System Version: 181.46.3
Well nevertheless:
It was the most recent version i could get and i wanted to get back to Android L.
I installed CM12 the Following way, I had a lot of problems with that. So here is my experience and everything:
So you need to know, to install CM12 or other CM12 based ROMS you first need to have CM11 installed.
Newer Versions of the recovery might be having problems installing CM11, so i would recommend using PhilZ Touch Recovery. It was working for me.
1st: install PhilZ recovery
2nd: factory reset
3rd: install cm11 (Unified Build, due to no up-to-date-build for XT925)
4th: boot
5th: install latest TWRP XT925/TWRP XT926
6th: factory reset
7th: install CM12 XT925 / CM12 XT926 or other CM12 based ROM
8th: install Gapps
9th: wipe cache/dalvik cache
10: Boot
11: Have fun.
Possible problems:
"This package is for moto_msm8960, xt907, scorpion_mini, smq, xt926, vanquish, this is a xt925" ------> You got a problem with the Recovery, it is too new. Try PhilZ
CM12 Booting, inconsistent Data partition stuff error ---------> you did not install cm11 and did not wipe Data before installing CM12, when coming from Blur Rom
Bootloop ---------> no wiping or you did not install cm11 before installing CM12
I hope this might have helped you.
Greetz Esok
thanks alot @esok44 for detailed reply
which phone you hv xt925 or 926
why install cm11 from moto msm8960 and not from specific xt925,xt926 build
faheemakbar18 said:
thanks alot @esok44 for detailed reply
which phone you hv xt925 or 926
why install cm11 from moto msm8960 and not from specific xt925,xt926 build
Click to expand...
Click to collapse
Heyho
I have an XT925.
I installed the msm8960 Build.
The Reason i used the unified Build was, there is no KKBL build for the xt925.
thanks again, onto the procedure now
just last thing, which version of philz recovery you installed, download link has latest one @esok44
faheemakbar18 said:
thanks again, onto the procedure now
just last thing, which version of philz recovery you installed, download link has latest one @esok44
Click to expand...
Click to collapse
Hey Faheem,
i used the latest one, i guess
Found it here.
Link in my first Post was wrong
esok44 said:
1st: install PhilZ recovery
2nd: factory reset
3rd: install cm11 (Unified Build, due to no up-to-date-build for XT925)
4th: boot
5th: install latest TWRP XT925/TWRP XT926
6th: factory reset
7th: install CM12 XT925 / CM12 XT926 or other CM12 based ROM
8th: install Gapps
9th: wipe cache/dalvik cache
10: Boot
11: Have fun.
Possible problems:
"This package is for moto_msm8960, xt907, scorpion_mini, smq, xt926, vanquish, this is a xt925" ------> You got a problem with the Recovery, it is too new. Try PhilZ
CM12 Booting, inconsistent Data partition stuff error ---------> you did not install cm11 and did not wipe Data before installing CM12, when coming from Blur Rom
Bootloop ---------> no wiping or you did not install cm11 before installing CM12
I hope this might have helped you.
Greetz Esok
Click to expand...
Click to collapse
If you come frome OTA Kitkat 4.4.2
you have to change Step 1st: install PhilZ recovery ------ to ------ Install TWRP2710-RAZR-HD_M-KITKAT.img instead then you can flash the CM 11
If you like philz_touch_6.58.7-moto_msm8960.img recovery (it can mount external Memory Card as USB) you can flash it after all installations after Point 11. The only thing that you cannot start directly to recovery from CM 12.1

[Q] What gapps to flash with Kit Kat rom?

I am currently on EuphoriaOS May 3 with TWRP 2.8.6.0 and want to revert back to Final Mahdi 4.4.4. What is the procedure to do this?
Your going to need to flash the KitKat firmware before flashing the ROM. You can flash the last cyanogenmod snapshot CM11 build. It has the firmware built in. Then wipe again and flash mahdi/4.4.4 gapps. You can find those on android file host.

Is an up to date bootloader necessery and can it causes bug in CM?

Hi I am currently on the canadian note 4. I am having some difficulty with cyanogenmod 12.1 lately so I wanted to move to CMRemix for better stability. The Installation guide ask the bootloader and the modem to be updated, I am doing that by reverting to an up to date stock rom and then installing CMRemix (Odin did not want flash for some reason.)
What I understand from the bootloader is that it is like the BIOS on a PC. Can my not up to date bootloader be causing the bug on CM 12.1? I am having the bluetooth crash bug and an overall slow system. CM also does not seem to work to well with spotify.
I am not an expert but I have been running custom rom for 3 years on my note 4 and note 2.
Thanks
PhilRattlehead said:
Hi I am currently on the canadian note 4. I am having some difficulty with cyanogenmod 12.1 lately so I wanted to move to CMRemix for better stability. The Installation guide ask the bootloader and the modem to be updated, I am doing that by reverting to an up to date stock rom and then installing CMRemix (Odin did not want flash for some reason.)
What I understand from the bootloader is that it is like the BIOS on a PC. Can my not up to date bootloader be causing the bug on CM 12.1? I am having the bluetooth crash bug and an overall slow system. CM also does not seem to work to well with spotify.
I am not an expert but I have been running custom rom for 3 years on my note 4 and note 2.
Thanks
Click to expand...
Click to collapse
Odin didn't want to flash the stock ROM???
Flash a stock ROM with Odin. Then flash a custom recovery like TWRP. Then do an advanced wipe and wipe cache delvik, system, data. The bluetooth could be unstable on CM12. You can look for a stable ROM and flash that if you're looking for everything to work flawlessly
i7vSa7vi7y said:
Odin didn't want to flash the stock ROM???
Flash a stock ROM with Odin. Then flash a custom recovery like TWRP. Then do an advanced wipe and wipe cache delvik, system, data. The bluetooth could be unstable on CM12. You can look for a stable ROM and flash that if you're looking for everything to work flawlessly
Click to expand...
Click to collapse
I tried flashing the modem and bootloader, not the entire firmware. I ended up installing the stock firmware in the end. I am doing the updates now and will install CMRemix shortly after
I always go stock before I flash a new ROM. Best way unless directed otherwise

Can I flash a CM13 based rom without wiping data if I have CM13 already installed?

Title pretty much says it all. Can I flash a CM13 based ROM (specifically this one) without wiping data if I already have CM13 installed? I'm currently on the latest snapshot release. Thanks.
Probably could get it to work, but it won't be recommended by anyone.

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