UPDATE #NEW METHOD COMING
AND USING THAT U DONT HAVE TO MAKE ANY CHANGE IN ROM ZIP FILE EVERY TIME
AND A VIDEO ALSO I AM WORKING TO MAKE THE PROCESS MORE easily UNDERSTANDABLE
Pre requisite
1. unlocked bootloader
2. Root
3. Twrp installed
4. Pc
5. Or usb otg
My guide assumes
Primary rom - stock zenui rom or can be any rom u r using
Secondary rom - aoscp extended latest build
Dualboot means- installing roms on yoyr device without wiping your current rom, so rom called secondary rom can be installed on internal storage itself, or sdcard, usb
In this guide i have used sdcard for installing secondary rom
Steps
First we have to partition our sdcard so backup everything to pc as sdcard will be erased
.Install Aparted from playstore or download from attachment
.Open the app A parted. Grant root
.Goto tools tab select partition 1 it should be ur sdcard
Select delete from below and click apply
. now goto create and click add use this as fat32 size as u wish
. again click add now this will be ur system partition so use this as ext4 size min. 3000mb
. again click add ext4 for data partition and size should be something around 5000mb min. Max depends on ur sdcard space
. add cache partition ext4 size min. 100mb
.now apply the changes.
Now u have prepare ur rom zip file .
First unzip the rom
Just replace the attached boot.img with boot.img in ur rom zip file and same do with updater script
Location of updater script is metainf/com/google/android
And then repack the rom file into zip
Now flash the attached twrp recovery
Boot into new twrp goto wipe
Change file system
Select system, format as ext4
Go back select data and format as ext4
And do same with cache
Now what
Just copy ur new rom zip file onto sdacrd after formatting and flash it
Gapps simply flash
For switching roms
Just install flashify from playstore and flash the boot.img of the rom u want to use
I know above guide is not full fledged but if u get stuck anywhere just comment i am here to help
But if u are a developer u may have know the proces by ur own
Sorry for my bad english
Press thanks if i helped you. :good:
:laugh:
Thanks to rom developers coz without them there was no need of dualboot
And if u want to use another rom as dualboot just telegram me its boot.img and updater script
I will provide u the modified one
Id. ady692
https://drive.google.com/file/d/0B8O22xDxCq2FWm5KNThNaWtiOHc/view?usp=drivesdk
AND USING THAT U DONT HAVE TO MAKE ANY CHANGE IN ROM ZIP FILE EVERY TIME
AND A VIDEO ALSO I AM WORKING TO MAKE THE PROCESS MORE easily UNDERSTANDABLE
Pre requisite
1. unlocked bootloader
2. Root
3. Twrp installed
4. Pc
5. Or usb otg
My guide assumes
Primary rom - stock zenui rom or can be any rom u r using
Secondary rom - aoscp extended latest build
Dualboot means- installing roms on yoyr device without wiping your current rom, so rom called secondary rom can be installed on internal storage itself, or sdcard, usb
In this guide i have used sdcard for installing secondary rom
Steps
First we have to partition our sdcard so backup everything to pc as sdcard will be erased
.Install Aparted from playstore or download from attachment
.Open the app A parted. Grant root
.Goto tools tab select partition 1 it should be ur sdcard
Select delete from below and click apply
. now goto create and click add use this as fat32 size as u wish
. again click add now this will be ur system partition so use this as ext4 size min. 3000mb
. again click add ext4 for data partition and size should be something around 5000mb min. Max depends on ur sdcard space
. add cache partition ext4 size min. 100mb
.now apply the changes.
Now u have prepare ur rom zip file .
First unzip the rom
Just replace the attached boot.img with boot.img in ur rom zip file and same do with updater script
Location of updater script is metainf/com/google/android
And then repack the rom file into zip
Now flash the attached twrp recovery
Boot into new twrp goto wipe
Change file system
Select system, format as ext4
Go back select data and format as ext4
And do same with cache
Now what
Just copy ur new rom zip file onto sdacrd after formatting and flash it
Gapps simply flash
For switching roms
Just install flashify from playstore and flash the boot.img of the rom u want to use
I know above guide is not full fledged but if u get stuck anywhere just comment i am here to help
But if u are a developer u may have know the proces by ur own
Sorry for my bad english
Press thanks if i helped you. :good:
:laugh:Thanks to rom developers coz without them there was no need of dualboot
And if u want to use another rom as dualboot just telegram me its boot.img and updater script
I will provide u the modified one
Id. ady692
https://drive.google.com/file/d/0B8O22xDxCq2FWm5KNThNaWtiOHc/view?usp=drivesdk
Last edited:
