> today i did the rework for bug #1024 to my freerunner. First i tried to > remove C1009 and replace it with a 22µF capacitor but i had no luck > getting it off the board with my tools. Maybe it was glued to good and i > have no smd tweezer iron to heat up both ends of C1009 at the same time. > So i used the solution where i added a 10µF capacitor parallel to the > existing one. My rework is based on [1] by Dieter Spaar. > > I documented my rework process with a few pictures available here [2]. > > Now i only need a reliable testcase where i can see if the rework helped > or not. Is there any scenario i can try to find out if #1024 is fixed or > not?
Visit the city at noon. Shut down all processes using the modem. Use mickeyterm to talk with the modem. Use the following sequence of commands: AT%SLEEP=4 AT+CREG=2 AT+CSQ=1 AT+COPS=0,0 Then, watch the unsolicited messages +CREG and +CSQ coming around for a while and post them here for analysis. The problem pattern is when you frequently receive a +CSQ: 99,99 followed after a +CREG=2, then back into +CSQ != 99 and +CREG=0. :M: _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community