Dear All Advisors & Dell Technical Support, The laptop finally got repaired 3 days back & is working perfectly fine. The Laptop Repair Company has repaired the motherboard for just Indian Rupees - INR. 4500 (@ 55 US Dollars) & has also given one month warranty which is a standard for refurbished laptops. Normally if any device works fine for one month it should work fine in the future also. The Laptop Repair Company said that some  ICs (Integrated Circuits) had to be replaced as they had got burnt due to high voltage. I would also like to say that I had initially given the laptop to some other Repair Company who could not repair the laptop, since they said it was an Internal Tracks damage issue (PCB Repair) which is a very difficult process. With Thanks & The Very Best Regards, Mr. Vikas Kulkarni.
  Inspiron 15 3521 THE MYSTERY OF MY RANDOMLY SUDDENLY SWITCHING OFF LAPTOP WITH A CLICKING SOUND I HAVE A DELL LAPTOP MODEL - INSPIRON – 15 - 3521 BOUGHT IN THE YEAR 2015 WITH WINDOWS 7 IT WORKED GREAT WITHOUT ANY ISSUES FOR NEARLY 7 YEARS. ITS ORIGINAL BATTERY LASTED 6.5 YEARS WITH STANDARD USE NOT TOO MUCH AND NOT TOO LESS WITHOUT ANY ISSUES. I REPLACED THE BATTERY THIS YEAR MARCH 2022. SINCE THE PAST 4 DAYS IT SOMETIMES RAN SMOOTHLY AND I COULD WORK ON IT FOR 2 TO 4 HOURS 2 TIMES BUT MOSTLY IT SUDDENLY SWITCHES OFF WITH A CLICKING SOUND COMING FROM I THINK THE BOTTOM PORTION OF THE TOP R.H.S. OF THE KEYBOARD. ONE MORE POINT TO BE NOTED IS THAT THE TIME FOR THIS SUDDEN SWITCH OFF KEPT ON DECREASING – I.E. THE FIRST TIME THE COMPUTER SWITCHED OFF WHILE I WAS WORKING FOR SAY 3 HOURS – THE SECOND SWITCH OFF WAS AFTER A LESSER TIME SAY 25 MINUTES – THE THIRD WAS WHILE WINDOWS HAD JUST FINISHED LOADING (AFTER WELCOME SCREEN APPEARANCE) – THE FOURTH WHILE WINDOWS WAS LOADING – THE FIFTH JUST 10 SECONDS AFTER PRESSING THE POWER BUTTON – AND THE SIXTH JUST 5 SEC AFTER PRESSING THE POWER BUTTON. I HAD TO KEEP THE LAPTOP JUST IDLE FOR MINIMUM ONE HOUR IN BETWEEN THESE RESTARTS / REBOOTING FOR THE LIGHTS TO APPEAR AFTER PRESSING THE POWER BUTTON. I ALSO SOMETIMES PRESSED THE POWER BUTTON FOR 15 SECONDS SINCE IT WAS ADVISED BY MANY ON THE INTERNET (FACTORY RESET) AFTER TRYING FOR 2 DAYS WITH ABOUT 25 ATTEMPTS OF POWER ON AND REBOOTING AS SPECIFIED ABOVE I HAD KEPT THE LAPTOP ASIDE FOR ONE AND A HALF DAY BECAUSE ONE PERSON ON THE INTERNET HAD MENTIONED A SIMILAR PROBLEM LIKE ME AND HAD SPECIFIED ON ONE OF THE FORUMS THAT HE DID NOT USE THE LAPTOP FOR ONE MONTH AND AFTER ONE MONTH WHEN HE SYTARTED THE LAPTOP IT WORKED PERFECTLY FINE FOR MANY DAYS. SO FOR ME ALSO IT WORKED SIMILARLY AFTER KEEPING THE LAPTOP IDLE FOR ONE AND A HALF DAY. BUT UNFORTUNATELY IT WORKED ONLY FOR 1 DAY AND I COULD WORK ON IT FOR 3 HOURS I.E. YESTERDAY – I CARRIED OUT THE FOLLOWING TEST YESTERDAY – THEN I NORMALLY SHUT-DOWN THE LAPTOP VIA WINDOWS THINKING EVERYTHING IS WORKING NORMAL NOW. BUT TODAY WHEN I STARTED THE LAPTOP IN THE MORNING IT AGAIN SUDDENLY SWITCHED OFF JUST AFTER 5 SECONDS !!! DUIRING THIS PERIOD OF FOUR DAYS I BROWSED THE INTERNET AND AFTER INSPECTING THE LAPTOP AT VARIOUS STAGES I COULD DECIPHER THE FOLLOWING POINTS – MY QUESTION IS HOW CAN A LAPTOP HAVING A FIXED CIRCUIT / HARDWARE AND SOFTWARE BEHAVE RANDOMLY LIKE THIS & WHAT COULD BE THE ISSUE?
THE MYSTERY OF MY RANDOMLY SUDDENLY SWITCHING OFF LAPTOP WITH A CLICKING SOUND