Digi XBee 3 Cellular LTE-M User Manual page 88

Update the firmware
b. The OK string is returned.
c. After the command is sent, the radio module resets and automatically enters
d. Send the
Invoke the bootloader with hardware signaling
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a. De-Assert RTS (pin 16).
b. Assert DTR (pin 9).
c. Put DIN in a low state (break) (pin 3).
d. Reset the module (pin 5).
e. Release the break on DIN (pin 3) The module should now be in bootloader at 38400
3. Once the module is in programming (bootloader) mode, configure the local serial port to
38400/8/N/1.
4. Get the hardware version of the radio module from the bootloader.
a. Send the V command. The response to that command has the following format:
XXXXYYYYZZAABBBBCCCCCCCCCCCCCCCC
5. If possible, change the baud rate of the serial port to optimize the firmware update process.
Send the X command to the bootloader.
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide
0x3FFF.
i. Run ATSL to get the address value, which is in hex.
ATSL
123456
ii. Add bitwise-AND with 0x3FFF.
(0xDB8A + 0x123456) & 0x3FFF= 0x0FE0
iii. Send the command AT%PFE0.
AT%PFE0
programming mode.
FR command to reboot and enter into bootloader.
baud.
Update the device firmware
XXXX: The hardware version.
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See ATHV, little endian.
YYYY: The hardware revision.
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See AT%R, little endian.
ZZ: The hardware compatibility
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number. See AT%C.
AA: Unused and should be 0.
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BBBB: The hardware series. See
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ATHS, little endian.
CCCCCCCCCCCCCCCC: The
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serial number.
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