Customizing ROM #

The Twoyi has added the feature to importing custom ROM and boot system in 0.5.1 version and above, here is the turtoial.

The ROM is a compressed file in 7z format; so you need to download the 7z compression tool first; here is the download address

Get the original rootfs #

First we need the original rootfs file, we recommend using the rootfs that comes with the official apk file; you can download the latest apk from the Twoyi official website; then use the zip utility to extract the package; in the extracted directory assets there is a rootfs.7z file.

Then use the 7z utility to extract this file and we can get a folder which is rootfs for Twoyi.

Edit rootfs #

Modify the files in the rootfs in a way you are familiar with; such as adding built-in system applications, modifying resource files, modifying fonts, etc.; please note: Please do not delete the binary and library files in the Twoyi rootfs easily, as this may result in a failure to boot.

PS. Replacement of Launcher is currently not supported, please do not try to replace the custom Launcher.

Adding rom.ini #

After modifying the rootfs, it is recommended to add author and ROM description; there is a rom.ini file in the rootfs directory; this file has the following format.

author=作者名字
code=12344 #数字版本号
version=1.0.0-first # 版本名
desc=这是一个demo ROM

Replace ROM in Twoyi #

After the modification, use the 7z tool to compress this directory into a 7z file; then go to Twoyi, open Settings - Replace ROM and select the ROM you made.