Download the Samsung firmware for the Galaxy S8 SM-G950F with product
code OPT from Portugal (Optimus). This firmware
version number PDA G950FXXU4DSE4 and CSC
The operating system of this firmware
is Android 9 , with build date Tue, 14 May 2019 07:19:30 +0000.
Security patch date is 2019-05-01, with