difference between I've tried.. and I tried..

[dkqmail]

Hi,
What is the difference between these two sentences?

1.) I've tried that and still not working.
2.) I tried that and still not working.

Thank you in advance

 

[bhaisahab]

Hi,
What is the difference between these two sentences?

1.) I've tried that and it's still not working.
2.) I tried that and it's still not working.

Thank you in advance

There is no difference in meaning.

 

[dkqmail]

Thanks for your answer.