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	1	+(% class="wikigeneratedid" %)
	2	+**Table of Contents:**
	3	+
	4	+{{toc/}}
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	8	+
	9	+
1	1	= **For BC95-G** =
2	2
3	3	----
4	4
5	5
6		-(% style="color:blue" %)**1. Check the reason why you can't access the network:**
	15	+== (% style="color:blue" %)**1. Check the reason why you can't access the network**(%%) ==
7	7
8	8	(% style="color:#037691" %)**1) AT+CEREG=5**
9	9
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15	15	[[image:image-20220530093747-3.png]]
16	16
17	17
18		-(% style="color:blue" %)**2. Network access operation:**
	27	+== (% style="color:blue" %)**2. Network access operation:**(%%) ==
19	19
20	20	(% style="color:#037691" %)**1) AT+CFUN=0**
21	21
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36	36	2. The network access time varies with the signal strength.
37	37
38	38	3. If you have not been able to access the network, please try to access the network manually.
	48	+
	49	+
	50	+== (% style="color:blue" %)**3. Check the PS Attach or Detach  **(%%) ==
	51	+
	52	+(% style="color:#037691" %)**1) AT+CGATT?**
	53	+
	54	+(% style="color:#037691" %)**Response
	55	++CGATT: <state>
	56	+OK**
	57	+
	58	+(% style="color:#037691" %)**Write Command
	59	+AT+CGATT=<state>**
	60	+
	61	+(% style="color:#037691" %)**<state> Integer type. Indicates the state of PS attachment.
	62	+0 Detached
	63	+1 Attached**(%%)
	64	+
	65	+
	66	+**Note:Generally, when registering with an operator, attaching GPRS is automatic, and CGATT can manually attach the network.**
	67	+
	68	+
	69	+== (% style="color:blue" %)**4. Check the signaling connection status:**(%%) ==
	70	+
	71	+(% style="color:#037691" %)**1) AT+CSCON?**
	72	+
	73	+(% style="color:#037691" %)**Response
	74	++CSCON: <n>,<mode>
	75	+OK**
	76	+
	77	+(% style="color:#037691" %)**<n> Enable/disable the URC.
	78	+0 Disable the URC
	79	+1 Enable URC +CSCON: <mode>
	80	+<mode>Signaling connection status.
	81	+0 Idle
	82	+1 Connected**
	83	+
	84	+
	85	+== (% style="color:blue" %)**5. Check the PDP Context Activate/Deactivate**(%%) ==
	86	+
	87	+(% style="color:#037691" %)**1) AT+CGACT?**
	88	+
	89	+(% style="color:#037691" %)**Response
	90	+[+CGACT: <cid>,<state>]**
	91	+
	92	+(% style="color:#037691" %)**[+CGACT: <cid>,<state>]
	93	+[…]
	94	+OK**
	95	+
	96	+(% style="color:#037691" %)**<state> Integer type. The state of PDP context activation.
	97	+0 Deactivated
	98	+1 Activated
	99	+<cid> Integer type. A numeric parameter which specifies a particular PDP context definition (see
	100	+AT+CGDCONT).**(%%)
	101	+
	102	+
	103	+(% style="color:red" %)**Note: Note that having a cell ID attached to the network does not necessarily mean successful activation. For data exchange, such as initiating HTTP requests, activation is necessary to use them.**