Security password after changing the sim

[arindampaulju]

I've changed ported my sim card on XperiaM c1904 model. It is asking security password every time to unlock the screen. But please help me how to remove this.

[ashwyn1]

hi ...Have u managed to resolve this??Even I am facing the same issue as you. Its quite annoying to put the password everytime the scren gets locked. Please help me in case u have been able to resolve this issue

[arindampaulju]

No n really it's too much irritating.

[arindampaulju · Accepted solution]

if you have changed the sim and then it is coming... turn off all security settings.. then switch off n switch on using the ild sim n keep it for some time. then switch off and on with new sim... then turn on all security settings.. it has worked for my set.. try this..