It is not my work. Credits to 4pda and to Fedor917
All taken from http://4pda.ru/forum/index.php?showt...#entry47705403
More instructions also here
http://forum.xda-developers.com/show....php?t=2447534
1- You must be rooted and you must have TWRP 3.0.0
Instructions on how to
http://forum.xda-developers.com/wile...0-0-0-t3311572
2- Your primary ROM is the one you are using now
3- Download and install the below Dual Patcher
https://cloud.mail.ru/public/BGux/BDb7PSxUp
4- Give SuperSU rights to the application and if requested to install the kernel say yes.
4- Go to the "Patch ROM" to select a file, choose your device, and the slot where the firmware will be installed. I chose data slot since I had problems with extsd. Do the same for gapps if needed by the rom choosing the same slot
5- Reboot into recovery (TWRP 3)
6- Install the patched firmware and patched gapps if needed.
7- After flashing reboot ( no need to wipe anything)
8- You will be rebooted into the new Rom
9- Install in the new ROM the Dual Patcher
10- Open the Dual patcher and you can select from the ROM selection the rom you want to reboot
That's all. Now you can log in to another system by switching the firmware in the tab "Firmware" Using Dual Boot Patcher.
You can also add a third rom.
I have
Primary the stock Cyanogen
Second Temasek’s Rom and
Third Miui 7
Also read in the xda thread on how you can share the applications
Good Luck and I am not responsible for any damage to your device.





istanbul
Johannesburg
Puńsk
Linear Mode