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1	1	**Table of Contents：**
2	2
3	3	{{toc/}}
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21	21	[[image:image-20220527153544-2.png]]
22	22
23	23
	26	+
24	24	= **2. How to Debug if Cellular connection fails** =
25	25
26	26
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27	27	//If there is a problem with the cellular connection. Please check the below points~://
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29	29
	33	+
30	30	== **2.1 Do you order the model with a cellular option** ==
31	31
32	32
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43	43	[[image:image-20220601110748-1.png]]
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45	45
	50	+
46	46	== **2.2 Do you input the SIM card correctly** ==
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48	48
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66	66
67	67
68	68	(% class="wikigeneratedid" %)
69		-//**Note:** If the icon is missing some information, like SIM, Network, or Signal, which may be due to the display bug.//
	74	+//**​​(% style="color:red" %)Note:(%%)**(% style="color:red" %) **If the icon is missing some information, like SIM, Network, or Signal, which may be due to the display bug.**//
70	70
71	71	(% class="wikigeneratedid" %)
72	72	//Please check the IP address is displayed and the Internet displays "OK", it works properly.//
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75	75	[[image:image-20220527153827-5.png]]
76	76
77	77
	83	+
78	78	== **2.3 Check dialing info** ==
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80	80	//run "**logread -f**" in gateway CLI。//
81	81
82	82	(% class="box" %)
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120	120	)))
121	121
122	122
	130	+
123	123	== **2.4 If the following situation occurs, how can users solve this problem?** ==
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125	125
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130	130
131	131	//Regarding what APN your SIM card should use, Users can search for the APN corresponding to the SIM card by Google or ask the carrier.//
132	132
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133	133	[[image:image-20220718155937-1.png||height="562" width="497"]]
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	145	+
136	136	=== **2.4.2 The gateway can read the SIM card, But the Internet is displayed as Fail, and at the same time Network displays the carrier network.** ===
137	137
138	138
139	139	//It should be SIM card no flow, users can insert SIM cards into the mobile phone for testing.//
140	140
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141	141	[[image:1658131428288-728.png||height="538" width="494"]]
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144	144	=== **2.4.3 The gateway can't read the SIM card, and the Internet is displayed as Fail.** ===
145	145
146	146
147	147	//Users need to check whether the SIM card type is suitable for the EC25 module.//
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149	149	[[image:1658131612484-845.png||height="549" width="499"]]
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151	151
	165	+
152	152	=== **2.4.4 SIM display：~*~**SIM ERROR~*~** Check SIM is inserted test SIM in a mobile phone？** ===
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155	155	//Users can insert SIM cards into the mobile phone for testing.//
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157	157	[[image:image-20220718160804-3.png||height="602" width="500"]]
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159	159	= **3. Share Cellular Network for WiFi & LAN clients** =
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161	161
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212	212
213	213	**Enable Cellular and connect Ethernet at the same time**
214	214
215		-ETH icon is displayed as ​​​ [[image:1658135519305-444.png]] Indicates that Ethernet is the main working network.
	232	+ETH icon is displayed as ​​​ [[image:1658135519305-444.png||height="18" width="19"]] Indicates that Ethernet is the main working network.
216	216
217		-Cell icon is displayed as  [[image:1658135500498-725.png]] Indicates that Cellular is the backup WAN.
	234	+Cell icon is displayed as  [[image:1658135500498-725.png||height="17" width="17"]] Indicates that Cellular is the backup WAN.
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219	219
	237	+(% style="display:none" %) (%%)
	238	+
220	220	== **4.1 Switching between Cellular and Ethernet networks** ==
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222	222
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229	229
230	230	[[image:image-20220606140859-4.png||height="687" width="1107"]]
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	251	+(% style="display:none" %) (%%)
232	232
	253	+
233	233	== **4.2 Switching between Cellular and WiFi networks** ==
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235	235
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236	236	(% class="wikigeneratedid" %)
237	237	//Enable **Cellular** and connect **WiFi** at the same time//
238	238
239		-//WiFi icon is displayed as ​​​//[[image:1658135519305-444.png]]// Indicates that WiFi is the main working network.//
	260	+//WiFi icon is displayed as ​​​//[[image:1658135519305-444.png||height="23" width="24"]] Indicates that WiFi is the main working network.
240	240
241		-//Cell icon is displayed as  //[[image:1658135500498-725.png]]// Indicates that Cellular is the backup WAN.//
	262	+//Cell icon is displayed as  //[[image:1658135500498-725.png||height="23" width="22"]]// Indicates that Cellular is the backup WAN.//
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243	243	[[image:image-20220606141113-7.png||height="678" width="1106"]]
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245	245
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248	248	[[image:image-20220606140932-5.png||height="687" width="1107"]]
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251	251	== **4.3 At the same time start Cellular and Ethernet and Wi-Fi networks** ==
252	252
253	253
254	254	[[image:image-20220606140328-1.png||height="682" width="1108"]]
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256	256
257	257	)))
258	258
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269	269
270	270	(% class="box infomessage" %)
271	271	(((
272		-root@dragino-1ef9ac:~~# minicom -s
	296	+**root@dragino-1ef9ac:~~# minicom -s**
273	273	)))
274	274
275	275	[[image:image-20220527154132-6.png]]
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279	279
280	280	(% class="box infomessage" %)
281	281	(((
282		-(% style="color:black" %)**Serial Device :** (% style="color:#037691" %)**/dev/ttyModemAT**
	306	+**Serial Device :** (% style="color:#037691" %)**/dev/ttyModemAT**
283	283
284		-(% style="color:black" %)**Bps/Par/Bits :**(% style="color:#037691" %)** 9600 8N1**
	308	+**Bps/Par/Bits :(% style="color:#037691" %) 9600 8N1(%%)**
285	285	)))
286	286
287	287
288		-//**Note: Enter the corresponding letter to change the configuration, like A,B,C**//
	312	+(% style="color:red" %)//**Note: Enter the corresponding letter to change the configuration, like A,B,C**//
289	289
290	290	[[image:image-20220527154154-7.png]]
291	291
292	292
293		-//Enter **AT+GSN **in the interface to get the IMEI,//
	317	+(((
	318	+//Enter (% style="color:blue" %)**AT+GSN **(%%)in the interface to get the IMEI,//
	319	+)))
294	294
295		-// **For example (% style="color:#037691" %)860548042566627(%%)**//
	321	+(((
	322	+//**For example: (% style="color:#037691" %)860548042566627(%%)**//
	323	+)))
296	296
297	297	(% class="box infomessage" %)
298	298	(((
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304	304	[[image:image-20220527154231-8.png]]
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307	307	= **6. How does the gateway connect to the network via a USB 4G Dongle** =
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