K&F Concept F8 Instruction Manual page 16

2. Recharging method of 4G traffic card
En
If you use the 4G SIM card we provided, you can recharge it in the
following ways:
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iOS system mobile phone: scan the QR code on the SIM card package
and recharge according to the TIPS
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Andriod system mobile phone: scan the QR code on the SIM card
package, recharge according to the TIPS, or recharge through APP
3. PIR setting
If the camera is placed where there is a large flow of vehicles and people,
it is recommended to turn off or set the PIR
function to low sensitivity so as to avoid unnecessary wake-up and
prolong the battery life.
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