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a There is no signal or weak signal of a GPRS network
at the place of the watch, so that GPRS data cannot be
transmitted;
b
SIM card of the watch doesn’t activate GPRS function.
You are advised to subscribe to a 30M monthly package.
c The line is engaged. GPRS data transmission will be
automatically stopped during a GSM call.
●The APP client shows that the watch is off-line all the
time:
a Balance of the SIM card is insufficient, so that data
transmission and call services are prohibited.
b The watch is powered off or suffering a power outage.
c There is no signal or weak signal at the place of the
watch (in such case, the watch data can be uploaded to
the server).
●The distance between the watch and a base station is as
long as several hundreds meters: the watch is in base
station positioning state. The positioning precision
depends on the density of base stations around the watch.
The actual precision of base station positioning is 50 to
1000 meters. (You can log in webpage service platform,
filter LBS in “more” and “device information”, turn off the
base station positioning.)
