Asus x455lf problem

[String2016]

I need help on this, at first laptop is dead, i flashed the bios both main and EC, Now it turns on led white shows seconds then goes off and led goes to orange light and the fan is not spinning. board id X455L REV 3.1 anyone please help

[Duranitron]

Re: Asus x455lf problem

try to monitor the voltage of the bios ic..it must maintain proper vcc voltage and also the rtc battery if any.. check the core voltage.. 1.2 or 1volts.. also the always on voltages.. if all voltages are correct. try to use an external monitor..sometimes there is no indication the laptop is working but when you place external monitor you can see its working perfectly i experienced that with lenovo laptop bad lcd screen with busted led front display..

[String2016]

Re: Asus x455lf problem

@duranitron thanks for the response, I check the voltage on bios ic pin 8 once it start turn on white light and goes off to orange then suddenly turns to white light and goes back, Ive noticed that pin 8 on bios ic goes fluctuating voltage it goes from 3.3v to 1.8 and goes back to 3.3 and drops off to 1v, also i noticed the vcore voltage 1.0v is fluctuating also from 1v drops to 0v and goes back.

[String2016]

Re: Asus x455lf problem

anyone can help on this please

[piernov]

Re: Asus x455lf problem

Try other BIOS dumps.

[String2016]

Re: Asus x455lf problem

already tried the bios here in this forum but still same issue already flashed the EC

[String2016]

Re: Asus x455lf problem

no one can help please

[String2016]

Re: Asus x455lf problem

anyone please help on this

[bachir2004]

Re: Asus x455lf problem

anyone please help on this

Have you tried other bios dump like piernov suggested?poste #5#.
If not post the original dump.

[String2016]

Re: Asus x455lf problem

yes i tried already

https://www.badcaps.net/forum/showthread.php?t=86149

[bachir2004]

Re: Asus x455lf problem

yes i tried already

https://www.badcaps.net/forum/showthread.php?t=86149

the last one posted by smdflea should work,have you tried to write a clean ec.If so and you still have the same problem look carefully for any corrosion or anything else.i post a clean ec dump extracted from official bios.See your post in bios request.