# B7C c4b — functional run, class B (operator: "грузи щас"; booted from the fastboot left by c4 start 3; RTC 318 s). Not counted.
TIME SET at uptime 21.26 s, phase REG registered/attached, DMS−NITZ +0.24 s; START OK 73.0 s; SNTP check +0.580 s (best, ntp3), verify ntp2 +0.586…+0.592 s;
clock kept (< 1 s), UNSYNC kept, RTC untouched, eMMC writes 0, dmesg-errs 0, LTE ping 3/3.
Residual over the functional runs: c1 +0.19 s, c2b +0.45 s, c4b +0.58 s (B7A on a long-running modem: +0.28 s, σ 1 ms). Hypothesis: right after registration DMS
is set from whole-second NITZ, so its error is a per-boot value in [0, 1) s. Within the B7C limit (0.3–1 s), but not a fixed bias.