I try to:
Tip 1: Turn off "display errors"
In php.ini, find line "display_errors=On" replace with "display_errors=Off" ---> done.
Tip 2: Increase execution time in php.ini
Find line "max_execution_time=30" change to "max_execution_time=3000" ---> done.
Tip 3: Increase memory limit
Increase "memory_limit=128M" to "memory_limit=256M" ---> done.
And
"In case of Joomla 3.x installation freezes at Creating database tables in spite of using all these above tips, you can use the following method:
Find the term "ENGINE=InnoDB" and replace ALL with "ENGINE=MyIsam". It can be changed in /installation/sql/mysql/joomla.sql."
but when I open SJ Plus V2.1.0, the ENGINE has already MyIsam in default. And I try to install again, the SJ Plus V2.1.0 quickstart still freezing.