Dell Inspiron 14z 5423 wont turn on, won’t power on, no display, black screen problems

Laptop Dell Inspiron 14z 5423 won’t turn on, won’t power on, there is no display, just a black screen. This is a general diagnostic and repair steps to fix those problems.

Troubleshooting laptop Dell Inspiron 14z 5423 won’t boot, won’t power on, no display just black screen

When you push on the Power Button the Power led lights ON or NOT, your Dell Inspiron 14z 5423 won’t start up, and there is no display just a black screen. Possible problem and the fixes steps:

Battery has no charge left with AC adapter failed; you press the power button on laptop Dell Inspiron 14z 5423 nothing happens, laptop won’t turns on and there is no display, the battery has no charge left, the motherboard doesn’t receive any power, laptop cannot turn on. You plug in the AC adapter but that doesn’t help, your laptop Dell Inspiron 14z 5423 still won’t power on, there is a chance you have failed AC adapter. In this case try with another charger or check AC adapter with a Multimeter. If it’s dead, replaced with a new one, (How to check AC adapter with Multimeter).

Power circuit in wrong state or Over volt protection trips; you press the power button but nothing happens, laptop Dell Inspiron 14z 5423 won’t turns on and there is no display or laptop turn on with black screen and beeps, your laptop has static electric charge made power circuit in wrong state. Unplug AC adapter, take out the battery and hold down the power button for 30 seconds (in some case you have to take out the CMOS battery too). the static charge will dissipate. Plug in the AC Adapter and power on your Dell Inspiron 14z 5423 motherboard. This should restore the system to normal operating mode.

Screen faulty or bad video cable connection; laptop Dell Inspiron 14z 5423 turns on, but screen is black, with Power led lights ON. Test the laptop with an external monitor connected to the HDMI port, VGA port or any Display port, press the appropriate key to switch to it (Fn key + F4 key in most laptop). If the external monitor works fine and load the operation system, most likely you have a faulty screen or bad video cable connection. Check them and replace the faulty one.

Power button failed; When you plus in the AC adapter the charge led lights on, (and there is no static charge), but laptop won’t turn on when you press the power button. Probably you have a Power button failure. Disassemble the laptop and with Multimeter test Dell Inspiron 14z 5423 power button (ON/OFF) Continuity, if there is no continuity when you push on the power button. The Power button has to be repaired or replaced; you can also try to short the power button borne with conductor wire to see if laptop turns on, (How to Test Power Button).

Hardware failure; the laptop powers on, but there is no display just black screen with Power led lights ON or your laptop Dell Inspiron 14z 5423 stock on logo or restart. In this case, it’s possible one of the Hardware failed. You can try to disassemble the laptop to bare minimum and try to reseat the hardware one by one and power on the laptop every time you reseat a hardware to know the failed one, replace the faulty hardware,

Some electronics components or chipset on the motherboard failed; Laptop Dell Inspiron 14z 5423 won’t turn on at all. Disassemble the laptop and take out the motherboard. With a Multimeter check electronics components continuity, Voltage and Chipset temperature, you will need an electronic Schematic Diagram for Laptop Dell Inspiron 14z 5423. The failed electronic component has to be replaced, (How to test Laptop Power System).

BIOS failed; Laptop Dell Inspiron 14z 5423 won’t turn on at all, if the Power System and electronics components on the motherboard are good, there is chance you have failed BIOS, reprogram or replace the BIOS chip (How to reprogram (Flash). Laptop BIOS).

Motherboard dead; The Dell Inspiron 14z 5423 motherboard has to be replaced.

For other Dell Inspiron 14z 5423 problems check the comments or write a comment.

4 thoughts on “Dell Inspiron 14z 5423 wont turn on, won’t power on, no display, black screen problems

  1. Man

    May I know how to confirm the motherboard is really dead or not?
    It could be turned on 1-2 times, occasionally now per day or cannot turn on whole day.
    Before malfunction, 3 beeps is heard before but then operate normally for 1 day and then cannot turn on without any beep. What could the possible reason and how to fix?

    Thanks.
    Man

  2. helpmate Post author

    first try hard reset, disassemble the laptop and take out the CMOS battery too, hold down the power button for 30 seconds then try to turn on the motherboard.

  3. Man

    Thanks, I found out that it was due to bad Ram, when I change a spare 2G Ram, it turn on immediately. But after not long later, the Video Bios unit(extra one) got problem and beep 6 every time I reset the computer.
    Anyway, it is better than nothing. At least, it is functional now, thanks again for your time.

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