ST21i2 dual sim (SIM2) problem

Hi! I have a ST21i2 (DUAL SIM) and Im trying to use SIM2 for calls but I can't.



The only solution is to desactivated SIM1 in config. and then I can do calls with SIM2.





its the only way?



I flash the phone with last version from support (SETool2) and the problem stays.

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