LTE Module Series
BG96 DFOTA User Guide
BG96_DFOTA_User_Guide 11 / 16
3.2.
A
T+QFOT
A
DL=<p
ara>
Upgrade Firmware When Delt
a Package is
Stored in Local File System
If the delta firmware package has already been stored in the module’s file system, AT+QFOTADL=<para>
command should be executed to enable automatic firmware upgrade via DFOTA. Then the module will
upgrade the firmware automatically.
Parameter
1. "RESTORE" means the process of copying the upgraded firmware to the original partition from
backup partition.
2. The storage path for delta firmware package is /fota/update.zip. Both the path and the package name
cannot be modified. Customers can use the QEFS Explorer tool provided by Quectel to upload the
upgrade package.
3. If the module is powered down during "RESTORE", the module will automatically enter into forced
upgrade mode when power up next time and continue upgrade from "RESTORE". The upgrade
interface is shown as below:
A
T+QFOT
A
DL=<p
ara>
Upgrade Firmw
are When Delt
a Package is Sto
red in Local
File System
Response
OK
+QIND: "FOTA","START"
+QIND: "FO
T
A","UPDA
TING",<percent>
+QIND: "FO
T
A","UPDA
TING",<percent>
...
+QIND: "FO
T
A","RESTO
RE",<per
cent>
+QIND: "FO
T
A","RESTO
RE",<per
cent>
...
+QIND: "FOTA","END",<err>
If there is any error, response:
ERROR
<para> Integer type.
1 Start upgrade
<percent> Integer type. The upgrade progress in percentage.
<err> Integer type. 0 means upgraded successfully. Any other value means an error.
Please refer to Chapter 5 for more details.
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