I was able to copy the 1.20.1 Patch into the SD card, into the DATA partition on my Windows 10 laptop. It ends up that the reason I couldn't see the Data partition on Windows File Explorer was because File Explorer only shows drive partitions that have been assigned drive letters.
In Disk Management, I could see the three partitions on the 1.20.0 SD card. But the DATA partition did not have a drive letter assigned to it. I assigned a derive letter (F:) and when I rebooted, the DATA partition was there in File Explorer.
First, I tried the Version 1.20.0 version on the X6100 to verify there was no 6 meter FT8, and that my call sign and grid location would not stay when I powered down. Then, I just copied the "x6100_r1cbu_0.20.1.tgz" file into the DATA (F:) partition in Windows File Explorer on the SD card, the way Oleg said originally. Then, I reinstalled the SD card in the X6100, and FT8 was available for 6 meters and I could set my call and location from the screen and it stayed selected when I powered down and back up.
Jerry K6ANI
