want to rollback from CM13 to CM12.1 - G 2014 Q&A, Help & Troubleshooting

guys i want to revert back from cm 13 to cm 12.1 so, please let me know the procedure ,is it same procedure or i have to first install stock Lollipop rom .Please help.

There is no special procedure. Just clean flash (wipe system data dalvik and cache). Install ROM and gapps.

okk,Thanks
sagar846 said:
There is no special procedure. Just clean flash (wipe system data dalvik and cache). Install ROM and gapps.
Click to expand...
Click to collapse
so, i need to same step which i use to change one cm13 rom to another cm 13 rom.

Related

[Q] Camera causes reboot on some ROM's

ROM's based on original firmware and CM 11 work fine. Doom/Zombie/etc kernels work fine.
But SlimKAT, any official 4.1 or 4.2, Vanir or any other ROM causes hot reboot when opening camera for second time.
First time everything is OK, I can use e.g. PAC ROM for several days, but if I close the camera and open it again (without rebooting) it causes hot reboot. Always.
But CM11 is rock stable so is any original 4.3 and higher.
Any help with that?
Thanx!
slimKAT weekly 5.6's camera works without any problems .bro.
Orangewanted said:
slimKAT weekly 5.6's camera works without any problems .bro.
Click to expand...
Click to collapse
Yes, I know. Once ...
If I start if again it causes hor reboot.
CM 11, stock 4.3/4.4 no problems ...
Z O X said:
Yes, I know. Once ...
If I start if again it causes hor reboot.
CM 11, stock 4.3/4.4 no problems ...
Click to expand...
Click to collapse
Have you done a fresh installation ?
In CWM perform wipe data/factory reset and in mounts and storage section format system.
In TWRP choose advanced in wipe section and wipe dalvik cache, cache, system and data.
or please check your gapps which may cause the problem.
always use the gapps from here http://forum.xda-developers.com/showthread.php?t=2397942
Orangewanted said:
Have you done a fresh installation ?
In CWM perform wipe data/factory reset and in mounts and storage section format system.
In TWRP choose advanced in wipe section and wipe dalvik cache, cache, system and data.
or please check your gapps which may cause the problem.
always use the gapps from here http://forum.xda-developers.com/showthread.php?t=2397942
Click to expand...
Click to collapse
Yes, always fresh.
Point is, even flashed TFT ver 4.1 and 4.2 have same issues. Only 4.3 and 4.4 work OK :-/
Those are the GAPPS I always use ... Don't know. I'll try replacing camera libraries with version that work and see how that goes ...

Best Way to uninstall Rom?

Hi what is the best way to uninstall a custom rom to clean completely my phone?
I installed Paranoid Rom and Gapps + werewolf kernel too
How can I clean completely my P880 to Install a new Custom rom?
Pinuccio67 said:
Hi what is the best way to uninstall a custom rom to clean completely my phone?
I installed Paranoid Rom and Gapps + werewolf kernel too
How can I clean completely my P880 to Install a new Custom rom?
Click to expand...
Click to collapse
You kidding right?... How do you install custom rom if you don't know how to wipe one.
OK, procedure is, enter recovery wipe system, data, cache and dalvik cache and then install desired rom, gapps and kernel if you want( for ex. if you install cm11 from demetris you don't need to flash other kernel because built in kernel is great) and wipe cache and dalvik cache and you have new custom rom on your phone...reboot, wait until phone is fully booted (leave him alone for 5 min) and then make another reboot and you are good to go...
xperia u20i said:
You kidding right?... How do you install custom rom if you don't know how to wipe one.
OK, procedure is, enter recovery wipe system, data, cache and dalvik cache and then install desired rom, gapps and kernel if you want( for ex. if you install cm11 from demetris you don't need to flash other kernel because built in kernel is great) and wipe cache and dalvik cache and you have new custom rom on your phone...reboot, wait until phone is fully booted (leave him alone for 5 min) and then make another reboot and you are good to go...
Click to expand...
Click to collapse
I'm not kidding .
I just want to bu sure and don't brick my phone. thanks :laugh:

[Q] nexus 6 cm12 trouble.

I have a nexus 6 running cm 12 which function perfectly well.
the device is unable to install the latest cm12 nightly.
It got downloaded completely and is ready to install but when I reboot the phone to install the latest nightly, it takes me to TWRP recovery.
I dont know why this is happening.
Can anybody please help me?
If you need any more information to solve the issue, let me know
I never do custom ROM OTA's, but don't you flash the nightly manually? If you're dirty flashing just wipe cache/dalvik and install the nightly
joshm.1219 said:
I never do custom ROM OTA's, but don't you flash the nightly manually? If you're dirty flashing just wipe cache/dalvik and install the nightly
Click to expand...
Click to collapse
I always thought that I have to factory reset my device each time I need to flash a ROM.
Can I download the nightly update and flash it manually from recovery without factory resetting my device?
gautamperi said:
I always thought that I have to factory reset my device each time I need to flash a ROM.
Can I download the nightly update and flash it manually from recovery without factory resetting my device?
Click to expand...
Click to collapse
yes. if just updating a rom, you never have to factory reset, only when flashing a new different rom. and you dont ever have to wipe dalvik/art or cache, as when you flash the rom they automatically get wiped. so download the latest cm via your browser, boot into your recovery, then flash it in your recovery.
This is what I see when I tried to flash the downloaded nightly build from the cmupdator folder
simms22 said:
yes. if just updating a rom, you never have to factory reset, only when flashing a new different rom. and you dont ever have to wipe dalvik/art or cache, as when you flash the rom they automatically get wiped. so download the latest cm via your browser, boot into your recovery, then flash it in your recovery.
Click to expand...
Click to collapse
I will download the latest build on my browser and do what you have said.
I think now I am understanding this better:good:

Updating BlissPop Rom v 3.7 to v4.0.3

So i just want to confirm that while updating in the same custom rom what all things do i have to keep in mind.
1) Should I wipe the whole phone or just directly install the rom and wipe dalvik cache afterwards
2)or should i wipe system and cache before updating
These may seem silly but i dont want to brick me phone
thanks
Really??!
Dude go to the Blisspop thread and read the instructions again.

Cannot install ROM - but I am rooted?

Hey guys,
I have unlocked the bootloader and rooted the device - but for some reason, I cannot install ROMs.
When I access the recovery and attempt an install, it merelty aborts me from the process. I don't get it.
I believe the problem may be due to an accidental OTA update - but every time I try to rectify this with a factory reset, the update occurs automatically, before I am even granted access to the phone. Heck, every time I turn the device on, it says "android is upgrading".
Has anyone ever experienced this? Any idea on a course of action? The stock firmware just eats my battery like its a buffet.
Take a backup in twrp(data , system , boot) , take a titanium backup of ur apps..
Download the rom and gapps.
Go to recovery and wipe >advanced wipe > system, data, cache and dalvik cache
If it's a 5.1 Custom rom, flash cm 12.1 boot img or 12.1 rom first.
Then wipe , system, data, cache and dalvik cache.
Flash the Downloaded rom And gapps , it will take 5-10mins to boot up at first.
If ur gonna flash cm13, directly flash it (if u were on lollipop) , no need to flash cm 12 and then cm 13
If ur experiencing any errors, post a screenshot of the error.
Hope this solved ur problem
james11705 said:
Take a backup in twrp(data , system , boot) , take a titanium backup of ur apps..
Download the rom and gapps.
Go to recovery and wipe >advanced wipe > system, data, cache and dalvik cache
If it's a 5.1 Custom rom, flash cm 12.1 boot img or 12.1 rom first.
Then wipe , system, data, cache and dalvik cache.
Flash the Downloaded rom And gapps , it will take 5-10mins to boot up at first.
If ur gonna flash cm13, directly flash it (if u were on lollipop) , no need to flash cm 12 and then cm 13
If ur experiencing any errors, post a screenshot of the error.
Hope this solved ur problem
Click to expand...
Click to collapse
Thanks, mate. I don't know what I was doing wrong - but following your steps reconciled my problem. I appreciate it. :good:

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