Having trouble to drive Servo motor with Arduino Uno SMD? Get perfect solution now…

I was wondering that why my following code works fine on Arduino Uno R3 (DIP) to drive Servo motor but not on Arduino Uno SMD!

Actually it is a simple and basic code to drive servo motor with Arduino Uno SMD, but doesn't work! Almost everyone must be facing this problem.

 #include<Servo.h>
 Servo myservomotor;
 void setup()
 {
   myservomotor.attach(3);
 }
 void loop()
 {
   myservomotor.write(0);
   delay(1000);
   myservomotor.write(45);
   delay(1000);
   myservomotor.write(90);
   delay(1000);
 }

I did lots of permutations and combinations while working on this simplest project of Servo motor with Arduino.

But no luck! When I tried a lot I finally got the solution...!