HP 17-E105SA wont turn on, won’t power on, no display, black screen problems

Laptop HP 17-E105SA 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 HP 17-E105SA 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 HP 17-E105SA won’t start up, and there is no display just a black screen. Possible problem and the fixes steps:
Battery has no charge left + AC adapter failed; you press the power button on laptop HP 17-E105SA 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 HP 17-E105SA 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.

Power circuit in wrong state or Over volt protection trips; you press the power button but nothing happens, laptop HP 17-E105SA won’t turns on and there is no display just a black screen, your laptop has static electric charge made power circuit in wrong state. Unplug AC adapter, take out the battery and hold down power button for 30 seconds, the static charge will dissipate. Plug in the AC Adapter and turn on your laptop HP 17-E105SA. This should restore the system to normal operating mode.
Hardware failure; the laptop powers on, but there is no display just black screen with Power led lights ON or your laptop HP 17-E105SA 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.
Screen faulty or bad video cable connection; laptop HP 17-E105SA 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, press the appropriate key to switch to it. 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.
BIOS failed; Laptop HP 17-E105SA won’t turn on at all, if the voltage 19V, 3.3V, 5V OK  and electronics components on the motherboard are good, there is chance you have failed BIOS. There is a signal test confirmation on EC/SIO pin name RSMRST# . This pin must available 3.3V(tolerance 10%) than Bios Confirmed OK. If the test failed reprogram or replace the BIOS chip.

Laptop Power System has problem: Laptop HP 17-E105SA won’t turn on at all, probably some electronics components or chipset on the motherboard failed;  Disassemble the laptop and take out the motherboard. Ceck No burnt marks visible on the mainboard. Check chepset temperature (CPU,  GPU, Power-Supply IC …). Check power jack. Check motherboard receives 19V. with a Multimeter measure voltages on coils, check for any components shorted to ground.  checked 3.3v/5v is up and running?
If you  have 3VALW And 5VALW at coil. 3VALW should go to sio and from there you should get 3v at power button. Check SIO for corrosion,shorting or any componenets which looks suspect. Check 3 & 5v SUS voltage.
Will need an electronic boardview or Schematic Diagram for Laptop HP 17-E105SA. The failed electronic component has to be replaced.
Note: (In the comments we will be updated electronics components failure).
Motherboard dead; The HP 17-E105SA motherboard has to be replaced.

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For other HP 17-E105SA problems check the comments or write a comment.

4 thoughts on “HP 17-E105SA wont turn on, won’t power on, no display, black screen problems

  1. phillip

    Can you guys help me with my Laptop HP 17 model Quanta DA063MB6F1 wich wont turn on ac adapter pluged in (AC LED off ) but work fine with battery.
    after many hours trying to figure out the problem, i ended up finding that the voltage on ACDET is oscillating between 1.6v and 2.6v
    PU5 BQ24738 need at least 2.4v on ACDET to work , so i tried to inject this voltage with power supply , in this case , the AC LED turned on , and i was able to start up the motherboard .
    i checked the voltage devider around ACDET is OK .
    resistence to ground of ACDET is ok ( i find the same value comparing to a working motherboard )
    i have changed PU5 , the same problem .
    I hope some body can find the solution .
    thank you by advance

    1. Josef baroki

      PQ3 is being activated, that’s why the voltage on ACDET gets lowered to 1.6V.
      Measure the voltage on PQ3 gate, if it’s high you’ll have to figure out why.

    1. Josef baroki

      first make sure you’re using a working original HP power brick with the correct power rating.
      Check voltage on AD_AIR.


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