XE300 EP06-A error forwarding SMS

EddieA · 2021-10-18T17:57:18.862Z

On receiving an SMS on the assigned number for the SIM, this is what I get forwarded to my phone:

I’m running 3.203-0701. Previously, with an earlier version of the firmware this did work, as I can still see the texts on my phone.

Cheers.

EddieA · 2021-10-18T23:18:33.021Z

Also, on the Internet page, the envelope for SMS messages has the red number, showing that there are messages. Clicking that takes me to the messages page, but all I get there is the spinning circle forever.

Tried a modem reset, but still no change.

Cheers.

alzhao · 2021-10-19T06:19:09.818Z

To forward message, email is much better than sms. Sending sms via the modem could be tricky. I never get it working with my carrier.

Also it seems your sms function is having an error. Is it possible to do a firmware reset?

EddieA · 2021-10-19T06:35:49.463Z

alzhao:

Is it possible to do a firmware reset

Are you suggesting just a “revert firmware” back to factory settings. Or reload the firmware via uboot.

Also, if the messages page will show the received SMS, then I don’t really need to forward with either SMS or e-mail, but that doesn’t appear to be working despite being the simplest solution.

Cheers.

alzhao · 2021-10-19T15:24:39.450Z

Revert back to factory settings are OK.

EddieA · 2021-10-19T16:57:27.702Z

OK, did the following:

Revert firmware
Wait for re-boot
Went through first time sign-on, setting language and password
On Internet panel verified I was connected to correct cell network
On 2 different devices sent SMS to XE300 phone number
Waited for “envelope” to show received texts
Hit envelope to go to Message screen

All I get at this point, is the spinning circle and the texts don’t show. I didn’t change any other settings at all.

Cheers.

EddieA · 2021-10-19T19:04:14.436Z

So I tried your other suggestion of using e-mail to forward the texts. This is what I got:

First tried with PDU mode new (with CSA): PDU ERROR: Position 43,6: Invalid character(s) in date of Service Centre Time Stamp: “1B-10-19” Next tried with PDU mode old (without CSA): The PDU data (09) says that this is a sent message. Can only decode received messages. No success. This PDU cannot be decoded. There is something wrong.

Based on the this and the fact that I cannot open the “Message” page leads me to believe the error is in the reception of the SMS, not any attempt to forward it.

Cheers.

alzhao · 2021-10-20T01:25:47.845Z

Seems it is decode problems. Only send English text.

EddieA · 2021-10-26T05:19:48.615Z

alzhao:

Only send English text

That’s all I am sending.

I also loaded Minicom to try and see what I could gather by issuing the AT commands interactively, but that doesn’t really work, as the AT commands being issued on a regular basis by the firmware break what I’m typing in. There’s not enough time between each of the firmware commands to type any meaningful AT command.

Cheers.

alzhao · 2021-10-26T07:48:21.351Z

EddieA:

There’s not enough time between each of the firmware commands

I don’t think the firmware is using too any AT commands.

EddieA · 2021-10-26T17:59:01.524Z

In Minicom I see a response and “OK” every 5 or 6 seconds: CREG: 0,5, CSQ: 12,99 and (less frequently) QENG.

Which doesn’t leave enough time to type in any command.

Cheers.

EddieA · 2021-10-31T22:44:51.046Z

Is there any way to stop the firmware “chatter”, so I have time to type in commands to determine if my issues are in the EP06 firmware of the GL firmware.

Cheers.

robotluo · 2021-11-03T03:07:21.701Z

The EP06 does not support GMS, so in many cases, you cannot receive and send SMS messages. You can ask your carrier whether SMS messages support LTE channel.

EddieA · 2021-11-03T05:06:05.214Z

robotluo:

The EP06 does not support GMS

What is GMS:

Google Mobile Services - Probably not
Geographic Messaging Service - Don’t know of anyone using that yet
GMS - They appear to be a service provider

So, nothing that I can find that relates to a messaging standard.

robotluo:

you cannot receive and send SMS messages

So why does the Quectel EP06 AT Commands Manual have a complete section on Short Message Service Commands. That kinda suggests they do support it.

Sending an SMS from the XE300 works fine, as I receive that on my phone, which proves they DO support SMS. (Albeit I get the message twice, but hey, it still works). Responding to the message shows as a message received, so something understands the reception, but trying to read it gives all the issues documented above.

Cheers.

robotluo · 2021-11-04T01:58:36.891Z

EddieA:

What is GMS:

Sorry, I wrote it wrong, it’s GSM, it’s a second generation of mobile communication, text messages are usually transmitted on this channel

EddieA:

So why does the Quectel EP06 AT Commands Manual have a complete section on Short Message Service Commands. That kinda suggests they do support it.

The EP06 supports SMS, but requires LTE channels to support SMS, depending on your carrier’s support.