Forums - QSC6270 GSM Modem Bug

3 posts / 0 new
Last post
QSC6270 GSM Modem Bug
mike
Profile picture
Join Date: 8 May 18
Posts: 2
Posted: Tue, 2018-05-08 16:09

I could not find the correct place to ask about the QSC6270. Please let me know where the apropriate place to ask this is.

I am trying to find infromation about the QSC6270 chipset in order to debug a possible bug on my LGB470 phone. I have the phone plugged in via USB. I can send SMS messages using AT commands via the minicom terminal. However, attempting to list or read SMS messages from the phone/modem causes the modem to stop responding:

AT
OK
ATI
Manufacturer: LG ELECTRONICS
Model: LGB470
Revision: LGB470-QSC6270-V10c-JAN-11-2016-ATT-US  1  [JAN 11 2016 22:00:00]
SVN: 01
IMEI: 359926084167819
+GCAP: +CGSM,+DS,+ES

OK
AT+CPMS?
+CPMS: "ME",15,500,"ME",15,500,"SM",0,30

OK
AT+CMGF=1
OK
AT+CMGS="+12146168895"
> Hello World. 

+CMGS: 169

OK
AT+CMGL="ALL"

 

I get no response and can no longer communicate at all. Typing is not echoed back and if I turn local echoing on and attempt to send the AT command I get no response. The only way to get the modem to respond is by restarting the phone (unplugging and plugging back in the phone's USB, etc. does not help). The same thing happens after AT+CMGR commands.

Why does the modem stop responding after AT+CMGL and AT+CMGR commands? Any tips on how to debug? It was suggested that this may be a firmware bug.

  • Up0
  • Down0
svegesna Moderator
Join Date: 7 Jun 17
Posts: 20
Posted: Tue, 2018-05-08 22:01

Hello,

This thread is for queries related to QCA4002/QCA4004/QCA4010 IOT chipsets.
Probably you need to write in the appropriate thread.

Thanks,

  • Up0
  • Down0
mike
Profile picture
Join Date: 8 May 18
Posts: 2
Posted: Tue, 2018-05-08 22:25

Can you point me to the proper place?

  • Up0
  • Down0
or Register

Opinions expressed in the content posted here are the personal opinions of the original authors, and do not necessarily reflect those of Qualcomm Incorporated or its subsidiaries (“Qualcomm”). The content is provided for informational purposes only and is not meant to be an endorsement or representation by Qualcomm or any other party. This site may also provide links or references to non-Qualcomm sites and resources. Qualcomm makes no representations, warranties, or other commitments whatsoever about any non-Qualcomm sites or third-party resources that may be referenced, accessible from, or linked to this site.