[Ovmsdev] Module stops working after couple of days

[Mark Webb-Johnson]

Wido,

The only recent change to the modem handling code was in 1.2.0-rc5 - to handle multi-line sms messages and to increase the size of the network buffers.

If this problem is repeatable for you, could you try rolling back to 1.2.0-rc4 and see if that solves it? The git revision number is 1bb3ef4ec1df41a9b54a87c4c08918f76b5ade08.

Regards, Mark.

On 1 Mar 2012, at 10:09 PM, Wido den Hollander wrote:

> Hi,
> 
> On 03/01/2012 02:16 PM, Mark Webb-Johnson wrote:
>> 
>> What version of the car firmware are you running?
>> 
>> If the 1.2.0-rc? series, please ensure the switch on the PIC board is
>> set to the GRPS position (not GSM only).
> 
> Yes, I'm running 1.2.0-rc6
> 
> I checked the switch is correct, I had this before. The GPRS works fine, but that stops working.
> 
>> 
>> Can you also try the main www.openvehicles.com
>> <http://www.openvehicles.com> server to see if the same problem happens?
> 
> I'll try that later.
> 
> I'll try Sonny's suggestion first, sending a SMS with STAT to the module.
> 
>> 
>> This does remind me of problems we had many months ago with the modem
>> losing signal lock but that not being able to be picked up by the
>> module. But, I haven't seen it for many months.
>> 
>> Regards, Mark.
>> 
>> On 1 Mar, 2012, at 7:28 PM, Sonny wrote:
>> 
>>> Wido,
>>> 
>>> Green off is definitely strange. I suggest you to try reflashing the
>>> firmware to rule out a bad flash.
>>> 
>>> If it still drops out, try sending STAT via SMS. If it responds, then
>>> we can narrow it down to a GPRS problem.
>>> 
>>> Regards,
>>> 
>>> Sonny
>>> 
>>> On Mar 1, 2012 5:14 PM, "Wido den Hollander" <wido at widodh.nl
>>> <mailto:wido at widodh.nl>> wrote:
>>> 
>>>    Hi,
>>> 
>>>    About a week ago I was able to install the module and get my own
>>>    server up and running. Everything seemed to work fine from the
>>>    beginning, but after about 36 hours the module died.
>>> 
>>>    First I thought my prepaid SIM-card had ran out of credits, but
>>>    that was not the case.
>>> 
>>>    A manual reboot of the module was needed and it started working again.
>>> 
>>>    Yesterday I opened the app and saw "Last update 8 hours ago"
>>> 
>>>    Again, a reboot of the module was enough.
>>> 
>>>    I checked the LED's and the first time GREEN was solid ON and RED
>>>    was flashing slowly, that is normal.
>>> 
>>>    The second time the GREEN LED was off and only the RED one was
>>>    blinking.
>>> 
>>>    I don't think it's a problem of GSM reception, the module even
>>>    worked without the antenna while lying on the floor of the car.
>>> 
>>>    GSM reception is however very good here in the neighborhood, no
>>>    high buildings and it's a very dense network.
>>> 
>>>    It's also weird that the module doesn't come back online. If it
>>>    was a short disruption it could be a connection problem, but being
>>>    offline for 8 hours is long.
>>> 
>>>    Has anyone seen this behavior?
>>> 
>>>    Thanks,
>>> 
>>>    Wido
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>> 
>