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Dell Inspiron Laptop Intermittent Power Problem Repaired

By on April 6, 2021
dell laptop repair

 

 

 

 

Received a Dell Laptop for intermittent Power Problem.

dell laptop repair

Customer stated when he moves the laptop it goes off and again when powered it ON, Display screen shows always windows recovery screen.

windows error recovery

When I checked the laptop I did not found Battery. Customer is using the laptop without battery.

So reason for recovery mode is because laptop is suddenly goes off without shutdown process when it is in process so sudden failure in process make laptop in recovery mode.

Now I have to find the Culprit for the power failure. I checked pin and wire of power adapter for physical damage from outside it seems ok. So for reconfirming I used another laptop adapter for testing.

I plugged the charger to laptop and turned it ON. While little shaking of pin laptop goes off. That confirmed problem is with laptop itself not with the Charger. Physical Checked charging socket from the outside seems ok.

how to fix laptop connector

Now it is time to open the laptop for further inspection.

dell laptop board repair

See the Dust in side…………………………….

how to fix laptop motherboard

Cleaned the Motherboard. For removing the Charging socket you have to totally disassemble the laptop.

After removing the motherboard there is another small card with charging port.

laptop charging port circuit

On opening I found broken studs and Brass inserts. Plastic parts are brittle because of degrading. Removed charging socket circuit.

charging port circuit

charging port circuitboard

On visual inspection I did not found any physical damage but having some doubt on solder joints so revived solder of socket.

magnify glass on circuit

how to use magnify glass on circuit board

By connecting charger pin to the circuit I reconfirmed the socket for any shorting. Because this adapters are having short circuit protection in side. so if it found any shorting in motherboard, charger will turn off immediately.

how to fix laptop charging port

Now I have reassembled the laptop for the testing and turned it ON. Now problem is fixed and it is not turning off while shaking the charger pin or on movement of the laptop.

So culprit is Dry solder of the charging port ………………….

how to fix and repair dell laptop

This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.



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Note: You can check his previous repair articles in the link below:

https://jestineyong.com/using-clear-schematic-diagram-to-troubleshoot-desktop-computer-400w-atx-smps/

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13 Comments

  1. Albert van Bemmelen

    April 6, 2021 at 8:07 pm

    Like the customer in this repair I also started using my second hand Compaq Presario C700 laptop without battery pack after my second new battery failed working just after hardly been used. And although Dell is a good computer brand they are probably still only sold online. This way they probably already had an advantage over other firms especially in Corona time when other manufacturers only sold theirs in shops that needed to be closed down because of the covid-19 lockdown. And now have to start selling them online instead too.

    Likes(2)Dislikes(0)
    • Yogesh Panchal

      April 7, 2021 at 2:07 pm

      Albert,
      Some time Compatible parts are not working with dell for longer time.
      Covid 19 ruined daily bread earners & small scale Businesses across the world because shops markets are closed down.so we have to get the resources which are available.

      Likes(1)Dislikes(0)
  2. Parasuraman S

    April 6, 2021 at 11:46 pm

    Good job there! You penetrated into the actual problem and solved it! Many thanks for sharing!

    Likes(0)Dislikes(0)
    • Yogesh Panchal

      April 7, 2021 at 2:08 pm

      Thank You! Sir

      Likes(0)Dislikes(0)
  3. Imoudu Onwumah

    April 7, 2021 at 4:35 am

    Indeed a very good repair.However l have a personal hp Compaq 6910p laptop that when on / off botton is press,led light blinks 3 to 4 times and goes off without booting.Can anyone assist me where to check and focus attention.l really need this laptop to come back to live.pls help!!

    Likes(0)Dislikes(0)
    • Albert van Bemmelen

      April 7, 2021 at 1:38 pm

      Maybe you could start with first safety read out by removing and then reflashing the mostly sop8 Bios chip with the right binary file for your laptop?
      Or look at the HP web site or on forums for the meaning of the led blink code? And start from there? It also could be the result of another Windows 10 upgrade failure?

      Likes(1)Dislikes(0)
    • Yogesh Panchal

      April 7, 2021 at 2:12 pm

      Imoudu Onwumah,
      Please share the location of LED Light which blinks ....i mean Caps Lock /Num Lock,Battery or Power Indicator .....

      Likes(0)Dislikes(0)
  4. William Shaw

    April 8, 2021 at 4:05 am

    Nice work. Narrowed it down quick and repair not so difficult.

    Likes(0)Dislikes(0)
    • Yogesh Panchal

      April 10, 2021 at 4:12 pm

      William Shaw,
      Thank You! Sir

      Likes(0)Dislikes(0)
  5. Waleed Rishmawi

    April 8, 2021 at 2:51 pm

    good job on the repair success. cold soldering repair is my favorit, the device gets fixed fast and customer happy. have a blessed day

    Likes(0)Dislikes(0)
    • Yogesh Panchal

      April 10, 2021 at 4:13 pm

      Waleed,
      Thank you!

      Likes(0)Dislikes(0)
  6. Imoudu Onwumah

    April 9, 2021 at 10:57 pm

    It is caplock led and I have done all hp recommended to for such system,yet negative result.

    Likes(0)Dislikes(0)
    • Yogesh Panchal

      April 10, 2021 at 4:21 pm

      Imoudu Onwumah
      Give Exact no. of blinking.
      As per the process for Caplock error code.
      2 Blinks indicates to BIOS IC / Program corrupted.
      3 Blinks Indicates to Memory / Clean or replace the module.
      4 Blinks indicates to Graphics / reflow or change the GPU /CPU.

      Likes(0)Dislikes(0)

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