search

radekp / qtmoko

QtExtended, formerly known as Qtopia from TrollTech, discontinued by Nokia
http://qtmoko.org
Other
70 stars 39 forks source link

State where one cannot issue phone calls #33

Open ydirson opened 12 years ago

ydirson commented 12 years ago

I had today a strange situation, where I could not issue outbound calls: after composing the number, the connection got closed immediately without any explanation. Switching the phone off, and even removing the battery did not help. Then I transplanted the SIM back to my old phone, checked it worked, transplanted it back again to the gta02, and then it worked. Any idea of something to do to get more info when that occurs again ?

radekp commented 12 years ago

IIRC sometime it happened when battery was low. Maybe next time you can try enable logging and interesting category can be "modem at commands"

ydirson commented 12 years ago

Hm, the battery was maybe slightly less than halfway full

ydirson commented 12 years ago

Finally got around to reproducing with a PC at hand. Strangely I did not get any problem with the USB cable plugged, and had to start qpe.sh from a screen session. With some luck the ssh session was not even interrupted and a simple ifconfig on the PC was enough to get back to a shell in the device. No doubt about the cause: IO errors with the SD-Card - yes, I was still running from SD, will change that ASAP.

However, the problem with not being able to make calls appears not to be a qtmoko issue - others with the same operator (Free Mobile in France) have reported similar recuring problems around 6pm. What is stange though, is that when running from SDCARD we get IOerrors after such a try. Could it be caused by interactions of the GSM radio waves with the electric signals of the SDCard ?