Installing Multi Boot on Nexus 4 and 7
Because of the customization feature of Android, it has become the most sought after operating system by smartphones. It is easy to root the device, install app and widgets and customize ROM with an Android device.
Here came the idea of multibooting or dual booting. This can be performed on the computer and your device. Multibooting or dual booting allows the installation of multiple operating systems. But to be able to perform this you need to edit the bootloader which takes a lot of time and effort especially if you are not that much of a techy person. However, Tasssadra from XDA was able to find a solution to this issue with the use of the MultiROM Manager. Unlike other methods of bootloading, with this manager, you do not need to modify your device’s bootloader. There may be some modifications but only on a specific data/partition of the device.
This app was release solely for Nexus 7 last 2012. But it is now available for Nexus 4 and 7. You can install and boot multiple ROMs with the help of this MultiROM. You can also use another ROM while restoring NANDroid backup. This is very useful especially if you are using a Custom ROM as you primary ROM while using stock ROM as the dual boot. This app also has a new feature which allows you to use USB-OTG cable to install ROMs which was previously impossible.
Do not try this tutorial with other devices except Nexus 7 of 2012 and Nexus 4 and 7 of 2013, or else you may brick your device.
Note: The methods needed to flash custom recoveries, roms and to root your phone can result in bricking your device. Rooting your device will also void the warranty and it will no longer be eligible for free device services from manufacturers or warranty providers. Be responsible and keep these in mind before you decide to proceed on your own responsibility. In case a mishap occurs, we or the device manufacturers should never be held responsible.
To Do List :
Root your device.
Your battery level should be at 80%.
Make a back up of all your data. To make sure your data is not erased, use NANDroid backup.
Avoid encrypting your device.
Installing Multiboot on Nexus 4 and 7
Install first the MultiROM Manager from the Play store, include the recovery and kernel on the install screen.
Adding a secondary ROM
- Copy the downloaded new ROM to the memory storage of the device.
- Open the MultiROM app. Go to recovery option, select Advanced, choose MultiROM and add ROM. Copies of ROM zip file will appear, choose them all and confirm.
- Reboot after installation.
- Clean the installation after the first boot.
- Remove the second ROM. Go to Manage ROM > Rename it, and delete the ROM.
For questions, leave a comment below.
You may also share your experiences below.