HUAWEI ME909u-523 LTE LGA Module
Application Guide
FOTA Application Scenarios
Issue 04 (2014-12-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
95
15.5 Periodically Querying the Version
15.5.1
Reference Process
Command
Description
AT^FOTAMODE=1,0,0,1,7
Configure FOTA mode as auto query, auto
download, auto upgrade, and resumable
data transfer enabled and the query cycle
to seven days.
OK
The command is successfully executed.
The module automatically checks for
updates when the query time arrives.
^FOTASTATE: 11
^FOTASTATE:
12,12.815.01.04.00,79114,"Support
send sms background"
Report that the query operation is in
process.
Report information about the new version.
NOTE
Periodical query is based on either of the two timekeeping modes: network timekeeping or
local timekeeping. If network timekeeping is unavailable, local timekeeping is used. Local
timekeeping may not be accurate.
Local timekeeping is affected by
AT+CCLK
command. Upon a power-off event, the CCLK
value changes to
1980
. After you choose to use local timekeeping and change the CCLK
value, the query operation cannot be carried out at the correct time.
15.5.2
Troubleshooting
Scenario
Possible Error
Information
Solution
Auto query is in
use.
No query operation is
initiated when the query
time arrives.
1. Check if the FOTA state is idle.
If not, change the FOTA state to
idle by using the
AT^FOTADL=0
command.
2. Check whether the PS data
service or IPSTACK service is
going on. If yes, terminate the
service.