[GUIDE] Downgrading to KitKat

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[GUIDE] Downgrading to KitKat

Post by Admin on Tue May 10, 2016 9:04 am

Perhaps this guide will help fellow YU's users who want to downgrade their YU from Lollipop to KitKat (OR FROM OTHER ROMs UNDER THE SAME PARTITION TABLE):
1.Download KitKat fastboot images from HERE: http://builds.cyngn.com/factory/tomato/cm-11.0-XNPH05Q-tomato-signed-fastboot.zip
2.Download fastboot.zip from HERE: http://forum.xda-developers.com/attachment.php?attachmentid=3290299&stc=1&d=1430427688  
3.Extact all zips in ONE EMPTY FOLDER.
4.Open "Terminal Window" from the folder where you extracted all the zip files (right click your mouse and choose "Open command window here"):
5.Put your phone into fastboot mode (disconnect the phone from PC, turn off the phone, and connect the phone to PC WHILE PRESSING VOLUME UP BUTTON).
6.After the phone is connected go to the "Terminal Window" you have opened previously, type all the command below (ONE LINE AT A TIME) and make sure you get an "OKAY" feedback:
fastboot -i 0x1ebf oem unlock
fastboot -i 0x1ebf erase modem
fastboot -i 0x1ebf erase boot
fastboot -i 0x1ebf erase recovery
fastboot -i 0x1ebf erase aboot
fastboot -i 0x1ebf erase abootbak
fastboot -i 0x1ebf erase hyp
fastboot -i 0x1ebf erase hypbak
fastboot -i 0x1ebf erase rpm
fastboot -i 0x1ebf erase rpmbak
fastboot -i 0x1ebf erase sbl1
fastboot -i 0x1ebf erase sbl1bak
fastboot -i 0x1ebf erase tz
fastboot -i 0x1ebf erase tzbak
fastboot -i 0x1ebf format system
fastboot -i 0x1ebf format userdata
fastboot -i 0x1ebf format cache
fastboot -i 0x1ebf flash modem NON-HLOS.bin
fastboot -i 0x1ebf flash sbl1 sbl1.mbn
fastboot -i 0x1ebf flash sbl1bak sbl1.mbn
fastboot -i 0x1ebf flash aboot emmc_appsboot.mbn
fastboot -i 0x1ebf flash abootbak emmc_appsboot.mbn
fastboot -i 0x1ebf flash rpm rpm.mbn
fastboot -i 0x1ebf flash rpmbak rpm.mbn
fastboot -i 0x1ebf flash tz tz.mbn
fastboot -i 0x1ebf flash tzbak tz.mbn
fastboot -i 0x1ebf flash hyp hyp.mbn
fastboot -i 0x1ebf flash hypbak hyp.mbn
fastboot -i 0x1ebf flash boot boot.img
fastboot -i 0x1ebf flash recovery recovery.img
fastboot -i 0x1ebf flash system system.img
fastboot -i 0x1ebf reboot-bootloader
fastboot -i 0x1ebf oem unlock
fastboot -i 0x1ebf format userdata
fastboot -i 0x1ebf format cache
fastboot -i 0x1ebf reboot
YOU CAN ALSO USE FLASHALL.BAT FROM HERE: http://forum.xda-developers.com/attachment.php?attachmentid=3302815&stc=1&d=1431092906
Extract it to the same folder you extracted fastboot.zip and KitKat fastboot images. However, please keep in mind that I don't recommend to use the bat file, and I am not responsible for bricked devices.
7.Welcome back to KitKat, easy wasn't it.

Admin
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Re: [GUIDE] Downgrading to KitKat

Post by White Shadow..... on Wed May 11, 2016 11:48 pm

This will be a very helpful post for many users, thanks for posting it Smile

White Shadow.....

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