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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	+
	7	+
	8	+= 1. Overview =
	9	+
	10	+
	11	+The current firmware for all BC660-GL modules is: (% style="color:blue" %)**BC660KGLAAR01A05 01.002.01.002**
	12	+
	13	+The latest firmware upgrade is: (% style="color:blue" %)**BC660KGLAAR01A05_01.203.01.203**
	14	+
	15	+You can use the (% style="color:blue" %)**AT+QGMR**(%%) command to query the firmware version.
	16	+
	17	+
	18	+= 2. The method to upgrade the firmware of the NB module is as follows: =
	19	+
	20	+
	21	+(% style="color:blue" %)**Step 1:**(%%) First, completely erase the program of the NBST module.
	22	+
	23	+
	24	+(% style="color:blue" %)**Step 2:**(%%) The NB module needs to insert a SIM card and ensure network connectivity.
	25	+
	26	+
	27	+(% style="color:blue" %)**Step 3:**(%%) Use TTL-USB serial port tool to connect TX and RX, GND of NBST,
	28	+
	29	+[[image:1720682410182-594.png]]
	30	+
	31	+
	32	+[[image:1720682422086-684.png]]
	33	+
	34	+
	35	+[[image:1720682438315-576.png]]
	36	+No welding is required, just touch it with DuPont wire.
	37	+
	38	+
	39	+(% style="color:blue" %)**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.
	40	+
	41	+
	42	+(% style="color:blue" %)**Step 5:**(%%) After opening the serial port, send the (% style="color:#037691" %)**AT+QIDNSCFG=0, "223.5.5.5", "8.8.8.8"**(%%) commands,  return OK.
	43	+
	44	+Send (% style="color:#037691" %)**AT+QFOTADL again= http:~/~/repo.dragino.com/release/NB/Update_BC660KGLAAR01A05_01.002.01.002-R01A05_01.203.01.203.zip**(%%) command,
	45	+The device is starting to upgrade firmware, as shown in the following figure:
	46	+
	47	+[[image:1720682486714-234.png]]
	48	+
	49	+
	50	+Successfully upgrading firmware will prompt the following message:
	51	+
	52	+[[image:1720682517629-407.png]]
	53	+The firmware upgrade was successful.
	54	+
	55	+
	56	+You can use (% style="color:#037691" %)**AT+QGMR** (%%)to check the firmware version.
	57	+
	58	+[[image:1720682568103-178.png]]
	59	+
	60	+