# B7C c2b — NOT a cold boot (operator error on my side): the board was still in lk fastboot after the c2 reset, the driver booted it at once. RTC at boot 759 s → class B. Functional result: probes 1-4 INVALID (DMS 3229…7193 ms = modem uptime from 1980), probe 5 at REG registered/attached VALID (NITZ Δ +0.77 s) → TIME SET at uptime 23.91 s; START OK 75.9 s; SNTP check +0.453 s (best, ntp2, 40 ms RTT), verify ntp2 +0.464…+0.472 s; clock kept (< 1 s); UNSYNC kept, RTC untouched, eMMC writes 0, dmesg-errs 0. Not counted. Driver fixed: if fastboot is already present it first waits for it to disappear (power-off).