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22	22
23	23	If there is a problem for cellular connection. Please check the below points:
24	24
25		-== 2.1 Do you order the model with cellular option ==
	25	+== 2.1 Do you order the model with a cellular option ==
26	26
27		-Make sure you order the model with the cellular option. Can check by command:
	27	+Make sure you order the model with the cellular option. Can check by command or via the Web UI.
28	28
29	29	(% class="box" %)
30	30	(((
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34	34	Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
35	35	)))
36	36
	37	+== ==
	38	+
37	37	== 2.2 Do you input the SIM card correctly ==
38	38
39		-Below command can check:
	41	+Below command can check if you have a SIM card inserted, or via Web UI
40	40
	43	+* Make sure to Power Off when you insert the SIM card and power on the device. The device doesn't support auto-detect SIM card on power on
	44	+* Make sure you have the correct direction to insert the SIM card. Every device has an example photo in the manual for the direction.
	45	+
41	41	(% class="box" %)
42	42	(((
43		-root@dragino-1bbd90:~~# comgt -d /dev/ttyUSB3
	48	+root@dragino-1dadd8:~~# comgt -d /dev/ttyUSB3
44	44	SIM ready
45	45	Waiting for Registration..(120 sec max)
46		-Registered on Home network: "CHN-CT",7
47		-Signal Quality: 23,99
	51	+Registered on Home network: "CHN-UNICOM",7
	52	+Signal Quality: 10,99
48	48	)))
49	49
	55	+== ==
	56	+
50	50	== 2.3 Check dialing info ==
51	51
52	52	run "logread -f" in console
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173	173	(% class="box infomessage" %)
174	174	(((
175	175	(((
176		-AT+GSN
	183	+ AT+GSN
177	177	)))
178	178	)))
179	179
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187	187
188	188	(% style="color:red" %)**Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware**
189	189
	197	+(((
190	190	This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.
	199	+)))
191	191
	201	+(((
192	192	Many mode (and most **LTE**) usb modems provide **qmi**, **mbim**, **ncm**, **rndis** protocol for connection instead of legacy **ppp** protocol, they are faster and better, overall recommended. For more information: [[https:~~/~~/openwrt.org/docs/guide-user/network/wan/wwan/3gdongle>>url:https://openwrt.org/docs/guide-user/network/wan/wwan/3gdongle]]
	203	+)))
193	193
	205	+(((
194	194	This is not beginner-friendly due to too many protocols.
	207	+)))
195	195
196		-
197	197	== 5.2 How to use the USB-Dongle at the gateway ==
198	198
199	199	Most of the products can be used on the gateway, but because their protocols are different, they are not used in the same way.
200	200
	213	+(((
201	201	For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.
	215	+)))
202	202
203	203	(% class="box" %)
204	204	(((
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207	207	The version numbers starting with 21 is NCM mode
208	208	The version numbers starting with 22 is Hilink mode
209	209	The E8372 only have Hilink mode
210		- (% style="color:red" %)Note：The e3372 in the vast majority of cases is Hilink mode
	224	+**~ **(% style="color:red" %)**Note：The e3372 in the vast majority of cases is Hilink mode**
211	211	)))
212	212
213	213	== 5.3 Hilink mode ==
214	214
215		-Gateway upgrade to the specified firmware:
	229	+Gateway upgrade to the specified firmware:[[Hilink.mode~~-~~-build-v5.4.1625627505>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG308-LG301/Firmware/USB-Dongle_firmware/Hilink.mode--build-v5.4.1625627505-20210707-1113/]]
216	216
217		-[[Hilink.mode~~-~~-build-v5.4.1625627505>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG308-LG301/Firmware/USB-Dongle_firmware/Hilink.mode--build-v5.4.1625627505-20210707-1113/]]
218		-
219	219	=== 5.3.1 1.Plugs into the device ===
220	220
	233	+(((
221	221	USB-Dongle plugs into the gateway USB port
	235	+)))
222	222
	237	+(((
223	223	Check the USB module via comman (% style="color:#037691" %)**lsusb**
	239	+)))
224	224
	241	+(((
225	225	(% style="color:red" %)**Note : User neet to do that connect gateway command line via ssh.**
	243	+)))
226	226
227	227	[[image:https://wiki.dragino.com/images/2/25/Usb-4g.png||height="63" width="554"]]
228	228

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