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OTAP fails with PLS62-W terminal | Telit Cinterion IoT Developer Community

May 22, 2023 - 11:27am, 2311 views

Hi,guys,

I've been stuck with this OTAP problems for days now...

I got a bunch of PLS62-W brand new units. I did some local install tests and everything was OK. Then, I set out to enable OTAP (SMS) using my long tested procedures and infrastructure, but it fails everytime.

I've double checked everything, used two different SIM's, compared with an ELS61 (which works!).

Using OTAP trace I noticed that at "PS detach success" message in the log, the orange led starts blinking quickly, which is supposed to indicate the unit is detached from the network. The blinking continues for 10+ seconds, while the procedure is supposed to download the JAD and JAR files, but of course it fails with "JAD Server Not Found". This is the OTAP trace log:

AT^SCFG="Trace/Syslog/OTAP","1"
OTAP.OUT STARTED

[OTAP] ====================================================================
[OTAP] Parameters set for AT procedure:
[OTAP] JAD File URL: https://****.jad
[OTAP] Hide HTTP Authentication Params: off
[OTAP] Bearer: GPRS0
[OTAP] Apn : ****
[OTAP] SMS Pwd: ******
[OTAP] Ignore SMS PID Check: on
[OTAP] ====================================================================
[OTAP] Parameters set for current procedure:
[OTAP] JAD File URL: https://****.jad
[OTAP] Hide HTTP Authentication Params: off
[OTAP] Bearer: GPRS0
[OTAP] Apn : ****
[OTAP] SMS Pwd: ******
[OTAP] Ignore SMS PID Check: on
[OTAP] ====================================================================
[OTAP] Starting OTAP download operation
[OTAP] Stopping all midlets
[OTAP] Midlets stopped
[OTAP] PS detach success
[OTAP] Starting installation
[OTAP] Try to get https://****.jad ...
[OTAP] Starting installation
[OTAP] ERROR: Server not found.
[OTAP] Transfer finished.
[OTAP] DONE with status: JAD Server Not Found
[OTAP] Operation failed
[OTAP] Reboot now

This is so strange. Why would the modem detach from network before going into download mode?

Might it be a firmware issue? This is from ATI:

ati1
Cinterion
PLS62-W
REVISION 02.010
A-REVISION 01.000.05

Any hint is very welcome!

Jure