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...	...	@@ -1225,6 +1225,21 @@
1225	1225	It is because the partitions are different when upgrading versions above 1.4.1, and a new partition file needs to be added. Please refer to the operation steps in chapter 8.3.
1226	1226
1227	1227
	1228	+(((
	1229	+== 8.5 How to deal with unsuccessful GPS positioning? ==
	1230	+
	1231	+1） Make Sure the device is in Open Area where can see the sky.
	1232	+2)  Set PDOP to a higher value.
	1233	+
	1234	+Please refer to this [[link>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/TrackerD/#H3.2.9SetPDOPvalueforGPSfixaccuracy]] on how to set up PDOP
	1235	+)))
	1236	+
	1237	+
	1238	+== 8.6 When positioning, it will restart or the PDOP setting is unsuccessful ==
	1239	+
	1240	+Please download version 1.4.2 again
	1241	+
	1242	+
1228	1228	= 9.  Order Info =
1229	1229
1230	1230