Dell Inspiron 14 7440 2-in-1 here which does everything except turn on the screen

[chinh]

I have a Dell Inspiron 14 7440 2-in-1 here which does everything except turn on the screen
The info from the sticker:
Reg Model: P186G
ST: 3QRFC24
EX: 8148532684
Thanks in advance

[chinh]

everyone help me

[minhdigital]

everyone help me

Try

[chinh]

Try

won't turn on, no keyboard light

[chinh]

Try

bump

[Mumraiz Ahmad]

No Display
Dell inspiron 7440 2 in 1
motherboard 233058-1
ST 7JFBJ54

[LBTT1121]

No Display
Dell inspiron 7440 2 in 1
motherboard 233058-1
ST 7JFBJ54

try and feedback

[Mumraiz Ahmad]

try and feedback

Thanks for your help but problem still there 1 time power showing for only 1 second after nothing.

[Mumraiz Ahmad]

try and feedback

hi
this bios file is the same bios before I uploaded only i have changed 00 FC AA To 00 FC 00 and 00 FD AA To 00 FD 00
Then flashed t The Laptop power on 1 time restarts after about 15 seconds without display second time starts and dell logo appears on the screen for about 7 seconds looks everythig good but
then automatically power off after power button also no power on again Flash bios same thing happen every time.
is there any hope please help.