Upgrade from 15.0.1 to 15.2/4

Hi, currently I am on Seqouia 15.0.1 and want to upgrade to 15.4 preferably but I don’t know if ai first need to go to 15.2. Why am I looking for 15.2 because 15.1 is the first step after 15.0.1 but I cannot a working download link! And I found one for 15.2.

So can I use OCLP to upgrade my MP5.1 (upgraded 4.1) from 15.0.1 to 15.4 directly or 15.2 is also OK?

Author: @krizzziz