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1		-BC660-GL module FOTA upgrade firmware

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1		-Main.WebHome

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1		-
2		-
3		-The current firmware for all BC660-GL modules is: BC660KGLAAR01A05 01.002.01.002
4		-The latest firmware upgrade is: BC660KGLAAR01A05_01.203.01.203
5		-You can use the AT+QGMR command to query the firmware version
6		-The method to upgrade the firmware of the NB module is as follows:
7		-Step 1: First, completely erase the program of the NBST module.
8		-Step 2: The NB module needs to insert a SIM card and ensure network connectivity.
9		-Step 3: Use TTL-USB serial port tool to connect TX and RX, GND of NBST,
10		-
11		-[[image:1720682410182-594.png]]
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14		-[[image:1720682422086-684.png]]
15		-
16		-
17		-[[image:1720682438315-576.png]]
18		-No welding is required, just touch it with DuPont wire.
19		-
20		-
21		-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.
22		-Step 5: After opening the serial port, send the AT+QIDNSCFG=0, "223.5.5.5", "8.8.8.8" commands and return OK
23		-Send AT+QFOTADL again= http:~/~/repo.dragino.com/release/NB/Update_BC660KGLAAR01A05_01.002.01.002-R01A05_01.203.01.203.zip command
24		-The device is starting to upgrade firmware, as shown in the following figure:
25		-
26		-[[image:1720682486714-234.png]]
27		-
28		-
29		-Successfully upgrading firmware will prompt the following message:
30		-
31		-[[image:1720682517629-407.png]]
32		-The firmware upgrade was successful.
33		-
34		-
35		-You can use **AT+QGMR** to check the firmware version.
36		-
37		-[[image:1720682568103-178.png]]