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.