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1		-BC660-GL module FOTA upgrade firmware

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1		-Main.WebHome

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1		-**Table of Contents: **
2		-
3		-{{toc/}}
4		-
5		-
6		-= 1. Overview =
7		-
8		-
9		-The current firmware for all BC660-GL modules is: (% style="color:blue" %)**BC660KGLAAR01A05 01.002.01.002**
10		-The latest firmware upgrade is: (% style="color:blue" %)**BC660KGLAAR01A05_01.203.01.203**
11		-You can use the (% style="color:blue" %)**AT+QGMR**(%%) command to query the firmware version.
12		-
13		-=
14		-2. The method to upgrade the firmware of the NB module is as follows: =
15		-
16		-
17		-**Step 1:** First, completely erase the program of the NBST module.
18		-
19		-
20		-**Step 2:** The NB module needs to insert a SIM card and ensure network connectivity.
21		-
22		-
23		-**Step 3:** Use TTL-USB serial port tool to connect TX and RX, GND of NBST,
24		-
25		-[[image:1720682410182-594.png]]
26		-
27		-
28		-[[image:1720682422086-684.png]]
29		-
30		-
31		-[[image:1720682438315-576.png]]
32		-No welding is required, just touch it with DuPont wire.
33		-
34		-
35		-**Step 4:** The device needs to be powered on, open the serial port debugging tool, connect the COM of the USB serial port with a baud rate of 115200, and then perform FOTA firmware upgrade.
36		-
37		-
38		-**Step 5:** After opening the serial port, send the **AT+QIDNSCFG=0, "223.5.5.5", "8.8.8.8"** commands,  return OK.
39		-Send **AT+QFOTADL again= http:~/~/repo.dragino.com/release/NB/Update_BC660KGLAAR01A05_01.002.01.002-R01A05_01.203.01.203.zip** command,
40		-The device is starting to upgrade firmware, as shown in the following figure:
41		-
42		-[[image:1720682486714-234.png]]
43		-
44		-
45		-Successfully upgrading firmware will prompt the following message:
46		-
47		-[[image:1720682517629-407.png]]
48		-The firmware upgrade was successful.
49		-
50		-
51		-You can use **AT+QGMR** to check the firmware version.
52		-
53		-[[image:1720682568103-178.png]]
54		-
55		-