[GUIDE] Restore Official CM12 Firmware

[charan007]

Great job

thx bud worked for me

 

[thestark]

Good Job

 

[madan mohan]

can we downgrade yureka plus from cm12.1 to cm12 using this process ?

 

[Turboapache]

Hey, I made a video describing how to unbrick bricked yureka's. Please visit, do tell how it is and don't forget to subscribe for future stuff.


---------- Post added at 03:30 PM ---------- Previous post was at 03:26 PM ----------

can we downgrade yureka plus from cm12.1 to cm12 using this process ?

Yes, you can downgrade to android 5.0 using the method just download the required ROM file and flash it using your recovery.
Please visit the video I posted (youtube) check below. It contains steps to unbrick yureka. Do share and subscribe.

 

[SunnyGrewal11]

hello .. m on 12.1 now n want to get back to 12 like it was more stable i think .. so like to do this i just need the 12 rom n flash it normally from recovery ?? is that it ?? like i have been flashing roms on other fones so its gonna b the same process or should i follow the steps in the first post ?
my fone is rooted and have teamwin recovery .... so like should i do this with adbfastboot or just normally flash this from recovery ?
one more thing like do i need to format data n system when i flash this ?

 

[vasurai123]

IMP : You need to be on 5.x.x Rom

Download official CM12 firmware image files.
Link : http://builds.cyngn.com/cyanogen-os/tomato/12.0-YNG1TAS0W0-tomato/56deeca328/cm-12.0-YNG1TAS0W0-tomato-signed-fastboot.zip

Download and install yureka drivers so that your pc can detect your phone.
Link : http://xdaforums.com/yureka/help/fix-yureka-fastboot-detection-issues-t3014794
credits to @b3Nz@

Download adb and mfastboot files.
Link : https://drive.google.com/folderview?id=0B05Crz57q4zgZE1aVW5FT1RsUUU&usp=sharing

Extract mfastboot files and factory images to a folder.
Open command prompt there.
Reboot your yureka into fastboot mode.

Now, its the time to enter commands. Execute these lines of command one by one checking that each command you executed returned ok !

commands :

mfastboot -i 0x1ebf oem unlock

mfastboot -i 0x1ebf flash boot boot.img

mfastboot -i 0x1ebf flash system system.img

mfastboot -i 0x1ebf flash userdata userdata.img

mfastboot -i 0x1ebf flash recovery recovery.img

mfastboot -i 0x1ebf flash modem NON-HLOS.bin

mfastboot -i 0x1ebf flash rpm rpm.mbn

mfastboot -i 0x1ebf flash sbl1 sbl1.mbn

mfastboot -i 0x1ebf flash tz tz.mbn

mfastboot -i 0x1ebf flash aboot emmc_appsboot.mbn

After successful execution, disconnect yureka from pc and reboot.

If every command you entered was successfully executed, your phone will reboot into stock CM12 firmware !

Please don't do this if your are on 4.4.x Rom. It will hard brick your device.

Hit thanks, if helped ! :good:

bro when i connect my phone in fastboot mode it reboot help me plz plz plz plz
tnx in advance

 

[m_rajaganesh]

I am in this ROM http://xdaforums.com/yureka/development/rom-quarkos2013266073-v1-0-stable-yureka-t3503971/page2
and i like get back to STOCK Rom to sell my Yureka. I am in TWRP Recovery with above link ROM. Can you help me on this. Shall i do you steps. Thanks in advance.

 

[rom installers]

Plz help

I want to revert back to stock firmware and i m not able to wipe my old rom using recovery. Is it safe to proceed to this method. Please please reply... It would br great help

 

[laiss]

hello ... I'm on 4.4.4 I want to upgrade. pls guide me.

 

[saumil007]

I just got this phone from my drawer and I cant remember that on what version my phone was on as it is stuck in yu logo. Any suggestion?

 

[Rajendran Rasa]

I just got this phone from my drawer and I cant remember that on what version my phone was on as it is stuck in yu logo. Any suggestion?

Clear data and cache in recovery

 

[RohitChan]

Hi, I have a Yureka as a secondary phone just to play around and tweak with.
I've been on RR - Oreo, for a long time. Switched to AEX 5.7 recently and updated the recovery yesterday, downloaded the latest TWRP official and tried booting on it. But the device is stuck on the YU splash screen and bootloops.
Followed all the steps here, and installed CM12.1 official firmware. (Thanks to prince.d.emperor for this thread)
The device booted up optimized the apps and while on the setup screen, it started to bootloop again. So, I'm back to YU splash screen. I don't know what else can be done here. Can anyone help me with this?
Thanks in advance.


Edit: I'm able to boot into recovery (both stock and custom) but not able to boot into any rom.

 

[Rajendran Rasa]

Hi, I have a Yureka as a secondary phone just to play around and tweak with.
I've been on RR - Oreo, for a long time. Switched to AEX 5.7 recently and updated the recovery yesterday, downloaded the latest TWRP official and tried booting on it. But the device is stuck on the YU splash screen and bootloops.
Followed all the steps here, and installed CM12.1 official firmware. (Thanks to prince.d.emperor for this thread)
The device booted up optimized the apps and while on the setup screen, it started to bootloop again. So, I'm back to YU splash screen. I don't know what else can be done here. Can anyone help me with this?
Thanks in advance.


Edit: I'm able to boot into recovery (both stock and custom) but not able to boot into any rom.

Clear data and cache in twrp

 

[RohitChan]

Clear data and cache in twrp

Tried that, still same...

 

[nnrique]

hey, can u update the link of img file?
its not working anymore...

 

[saurav007]

hey, can u update the link of img file?
its not working anymore...

https://xdaforums.com/yureka/general/yu-yureka-mirrors-official-cyanogen-t3107684