Download the Samsung firmware for the W2018 SM-W2018 with product
code CHC from China (Open China). This firmware
version number PDA W2018ZCU1ARH1 and CSC
The operating system of this firmware
is Android 7.1.1 , with build date Mon, 20 Aug 2018 02:23:02 +0000.
Security patch date is 2018-08-01, with