Yt9216bj-00012-v001 Update — Android

: The v001 update typically addresses common budget-unit issues, such as Bluetooth connectivity drops and slow system boot times.

There is a famous developer known as "Dark Alex" (not the PSP hacker) who releases specifically for the 9216 range. Look for versions named android_YT9216BJ_00012_V001_20210802.zip . android yt9216bj-00012-v001 update