Re-registering to GSM network

Joel Newkirk freerunner at
Mon Oct 13 22:46:54 CEST 2008

On Tue, 14 Oct 2008 04:58:51 +1000, Lorn Potter <lpotter at>
> Michael 'Mickey' Lauer wrote:
>> This is Openmoko bug #1024, which essentially seems to be a bug in the
> TI
>> firmware. It depends on the TI Calypso sleep mode, the traffic in the
> cell
>> you're logged into, and probably also your network operator's software
>> running on the cell towers. We're experimenting with a band-aid atm (see
>> bug-report for the entire gloryness...).
> I would say it has more to do with firmware. I have a gta01 that does
> this, a gta02 prototype that does it and a production FR that does not.
> All using the same gui, same sim, same tower, same operator, same
> network traffic.
> Using sleep mode on my production FR, stops it from properly waking up
> on phone calls and sms, so this is not reliable in stopping the bouncy
> calypso.

I'm assuming that said firmware is field-upgradeable, right?  :)

So once a fix is devised it won't be just for newly-produced handsets, as
might be the case with 'ordinary' cellphones. ;)

I'm seeing this issue on a GTA02v6 (August production) with frameworkd and
zhone.  Don't recall ever observing it on my previous (pre-RMA, June
production) GTA02v5, but it's possible that it's just frameworkd+zhone
making it more visible to me.  Inquiry shows me "HW: GTA02BV5, GSM:
gsm_ac_gp_fd_pu_em_cph_ds_vc_cal35_ri_36_amd8_ts0-Moko8", though
/proc/cpuinfo lists revision 0360.

Carrier is T-Mobile in US, but I'm permanently roaming on either Suncom
(being folded into T-Mobile now) or Cingular/ATT, and I've seen this
happening on both roaming networks.


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