1. Download the corresponding ROM (in. Zip format).

2. Install JAVA (you can search by yourself, only a lot of gold coins can be downloaded at the end of the article), download the signature tool (the download is attached at the end of the article), and decompress.

3. Double-click the ROM in. Open it in zip format without decompression.

4. Enter the data\app directory to see if there are any programs you need, and delete them if they are not needed. You can also add the default installation software you need. For example: sogou input method, just drag and drop the SogouIme.apk file to the compressed package \data\app directory.

5. Please go to "System \ Apply" to delete components you don't want or add components you need. Because some components depend on other components, please be careful when deleting them. But don't be afraid, if you delete the wrong component, you won't be able to enter the system when you brush the machine at most. You can brush it again with the complete ROM. It doesn't usually turn into bricks.

6. After deleting the added software, rename the ROM to update.zip, then copy it to the automatic signature folder, and double-click Sign.bat to wait (repackage the automatic signature). After signing in this directory, Update_signed.zip will be automatically generated, which is our simplified ROM. You can freely rename update_signed.zip at this time.