When calling icc.updateContact("fdn", contact) without pin2 provided, I found that if the pin2 is null, the modem won't check pin2 even when we're trying to modify a fdn contact. But if we provide some data for pin2, then modem will try to check the pin2 is correct or not. So RIL part should check whether pin2 is null first.

Need only 1 reviewer here.

Comment on attachment 804253 [details] [diff] [review] Part 2: test case for pin2 is null. Review of attachment 804253 [details] [diff] [review]: ----------------------------------------------------------------- Thank you :)

https://hg.mozilla.org/integration/b2g-inbound/rev/aa19c3362c67 https://hg.mozilla.org/integration/b2g-inbound/rev/dd6495277f48

https://hg.mozilla.org/mozilla-central/rev/aa19c3362c67 https://hg.mozilla.org/mozilla-central/rev/dd6495277f48