kudiarasu
Newbie level 3
Hi all,
Initially we had problem in establish GPRS connection in sim300 with new(3g)simcards. New simcard works fine with sim900a ,so we planned to migrate sim900 series. we replaced B2B connector and module for the sim900b in the place of sim300 (sim 300 and sim 900b are pin to pin compatable,still we believe sim900a and sim900b functionality are same ).
we face some issue in SIM900B,
we are unable to get signal strength
at+csq?
+CSQ:0,0
Similarly we are unable to receive CONNECT for the dialing command
ATDT*99***1#
NO CARRIER
Same hardware works fine with old simcard with sim300 module,
if any body face issues similar to this please help us.
Thanks in advance
kudiarasu.m
Initially we had problem in establish GPRS connection in sim300 with new(3g)simcards. New simcard works fine with sim900a ,so we planned to migrate sim900 series. we replaced B2B connector and module for the sim900b in the place of sim300 (sim 300 and sim 900b are pin to pin compatable,still we believe sim900a and sim900b functionality are same ).
we face some issue in SIM900B,
we are unable to get signal strength
at+csq?
+CSQ:0,0
Similarly we are unable to receive CONNECT for the dialing command
ATDT*99***1#
NO CARRIER
Same hardware works fine with old simcard with sim300 module,
if any body face issues similar to this please help us.
Thanks in advance
kudiarasu.m