With T-Mobile Czech SIM, update see before 1hour too 
BTW: As with previous UT27 OTA, with this UT2B for me again work reroot-on-device
(with Magisk trick “Restore Images” and after update/no_reboot “Install to inactive (after OTA)”) This is really good, as before 10x OTA updates i always must reroot with PC, with same
method as “first root unrooted system”…
EDIT: URL of OTA zip