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Time synchronization solution for RDK X5 without network access: RTC battery and intranet NTP

If the RDK X5 shows an inaccurate time after rebooting without a network connection, you can connect a 2–3.3V rechargeable battery to the onboard RTC battery connector (connector 2) to keep time. After setting the time with date -s, write it to the RTC with hwclock -w, then add hwclock -s to startup so the system time is automatically written back.

Part of the event: RDK X5 Time Synchronization Without Network: RTC Battery and hwclock Solution

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