Laptop has NO power, neither with battery or adapter

Question

Inspiron 15 3521, win 7 My laptop would not power on on day when I went to turn it on. Adapter does have green LED light on Battery was fully charged night before when turned it off. Laptop does not make any power on noises at all. Steps I have taken: 1. Took battery out, with adapter unplugged, and held on button down for 30 seconds to a few minutes, did this numerous times. The easy fix didn't work. 2. Tried numerous combinations of different wall plugs, and with and without battery and/or adapter. Nothing worked. 3. Took bios battery, the one you get to when take small cover off on back - took it out and tested it with my multimeter = a solid 3+ volts. That's not the problem. What else can I do? With the sensitive personal info on my hdd, there is no way I am going to leave it at a computer repair place. I watched a youtube video on how to take the unit apart. It is nothing I'm looking forward to doing, but I could do it since I have no other choice. Don't know what to specifically look for, a loose connection between the plug area and mobo? I have never had any hint of any kind of funky, weird behavior before it died. Do mobos decide to just up and die? I suppose it could be any piece of power related hardware. (I'm kinda getting scared with Dells. I can't go without a functioning laptop, so I always keep an extra. Before this one died, I had bought a Inspiron 15. It was still under warranty when, @ 6 months, it randomly started shutting down - sort of. Screen would go black and the only way to get it back was to close lit, putting it to sleep, count to 5 then open lid. They replaced adapter, mobo and something else power related inside it. I have never had either of these power issues with all of my other laptops, other brands, but now I hold my breath everytime I turn this newer one on.) What should I do to get it back up and running?

JOcean · Answer

Any flashing lights in a sequence? Any beeps at all? When you take out the CMOS battery, leave it out for 15 minutes then even though it tests good, replace it. I have see batteries test good but not work properly in the system.

https://www.dell.com/support/article/us/en/19/sln85632/dell-pc-does-not-turn-on-or-boot-into-windows?lang=en

Mary G · Answer

What model computer? Is it still under one year warranty? Contact Dell Support directly if it is under warranty. This forum is a user to user forum. https://www.dell.com/support/home/us/en/04?c=us&l=en&~ck=mn

Teetertotter · Answer

Did you try JOcean's  recommendations?  I think your 3521 with Win 7 was made in 2013 approx.? Let us know.

QuiltingB7 · Answer

Yes, it is probably about 5 years old. Totally out of warranty. (I just can't justify putting an extended warranty on a $400 laptop).

I am reading the link now, but I'm not finding anything specifically relating to me.

The unit worked fine the night before, battery was fully charged, it was running on a/c.

The next day when i went to turn it on, it was totally dead. No sounds or lights at all. I find it hard that both the adapter and battery would decide to die overnight. It cant be a software issue, it never powered on. I'll replace the bios battery, if that isn't it, wouldn't you think that would be a hardware issue? Some connection decided to fail overnight?

QuiltingB7 · Answer

NO sign of life, NO light on laptop (there is only one led - on very front edge, under touchpad), NO sounds, Nothing. No beeps, No hdd spin up, NO optical drive spin, Nothinig. Total Dead.

I will take the battery out for 15 mins and see. I'll test it again before I put it back into laptop, but how would I know if it was the problem, unless I need to buy another one and see if that one starts laptop?

Teetertotter · Answer

You can take it to a local reputable repair shop?  Maybe charge $50.00 to open it up?  Wish you luck. Again, did you try the other suggestion[s].........work?

Inspiron

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