Time & Date Reset (in SIM card change)

[aliabbas]

When I change my SIM card, the Time & Date would be reset and I must always set them again. How could Time and Date be unchanged when we open battery? I have N90 and N73. Thanks.

[peter_k_john]

Hi,
I think some models have this problem and some others have not.

In 6600 we have to set time whenever we removed the batter and on again. But I think 6681 ,E61 etc will take the correct time automaticaly even if remove battery for some time. What is the mechanism in these phones for doing this.


Peter