I tried to flash a new Xperia 10 II (double sim) with official version of latest SFOS using the description in the how-to at jolla.com.
Unlocking works, but flashing fails with following output:
Found XQ-AU52, serial:XXXXXXX, baseband:, bootloader:
Found matching device with serial XXXXXXX
Fastboot command: fastboot -s XXXXXXX
fastboot -s XXXXXXX getvar secure
<< getvar secure: FAILED
fastboot -s XXXXXXX flash:raw boot_a hybris-boot.img
Sending ‘boot_a’ (18520 KB) FAILED (remote: ‘unknown command’)
fastboot: error: Command failed
Flashing failed (1)
Can someone help?