Asus K53SV is dead now. Can you point me to the sollution ?

Hello.

First of all, english is not my native language, so very sorry for my bad english.

Here is the problem.

My battery on my laptop Asus K53SV was acting very weird. It shows 30% fo charge, then in few seconds it went to 0% and laptop shut down itself. I tried repair the battery by draining it almost to no charge. I've done this by plugging PSU to the socket, turning on the laptop, remove the PSU plug and wait until the battery drain to 0 and laptop shut off itself. I have did this about 20 times, one after another. At some point, my laptop did not power at all. Now I think is dead. I have got some skills, but I need somebody that can point to the right solution of repairing it.

Now, when I plug the PSU to the laptop, it turn on automatically without pressing the power button on the laptop. The screen is dark, no backlit. DVD is working, it tries to spin the DVD inside. LED from the HDD flash for a second or two and then it goes off, but the HDD spins ( you can hear it ). LED from the power is also working and the battery is charging. LED from Wi-Fi blinks for a half of a second. Sometimes, when I left the laptop plugged in for few minutes the fan from CPU starts to spin and blowing hot air from the vents ( but not from the start, only after few minutes ). When I try to turn off laptop by holding power button for few second it does shut off, but turns on itself after a second or two. If I try to power on the notebook just on the battery, it does not try to power on itself after I turn it off. Two other LED diods also works ( caps lock and some other LED ).

This laptop has got I5 2410 with intel graphic card and also GeForce 540M graphic card. What do you think is broken ? CPU ? Graphic Card ? Chip with BIOS ? Something else ? If the CPU is dead, I can change it myself. It the Graphic Card is dead than no luck for me. If the BIOS is broken, than I can reprogram it by SPI programmer. What do you think is broken ? I can make a video on youtube showing the laptop behavior.

 

This could be lots of things. How old is/was the battery that was not charging correctly? I'm not sure yet, but off the top of my head it sounds like you might have damaged the computer by shutting it off improperly over and over. If that battery was failing to hold charge, it could be that by repeatedly letting the computer die you damaged it. They're generally able to do this sometimes without problem (like when you hold the power button to restart it) but it's generally more risky to do it a bunch. have you tried connecting it to an external monitor to see if anything comes on the screen? are you under warranty?

 

Battery is worn out and needs to be replaced.
You cannot repair a battery since it has limited number of cycles, which is normally 500 charges/discharges.

The automatic power on could be related to the battery, try to duplicate the symptom without battery installed.

 

Automatic power on is without the battery as well.

Nothing on the external monitor.

It is out of the warranty.

So basically I'm in deep hole.

 

Sorry to hear that. Might be an issue with the mainboard.

 

I think I will gonna buy BIOS SPI programmer and check the chip. But what do you think, is it possible to upload BIOS on Asus K53SV mainboard directly on mainboard or is the chip need to be unsoldered ?

 

Depends by the chipset design, certain design allows you to flash directly onto the BIOS on the board (in-circuit), but some design doesn't allow it because of the voltage-leak then you will need to remove the BIOS chip.

 

I know that That's why I am asking about specific motherboard

 

I have the exact same problem down to the smallest detail you've described on the same laptop (k53sv with i7). My problem started last night when I was browsing with the battery around 28% when it dropped dead, and ever since it's been having the same issues. Did you manage to fix it or find out what's wrong?

Thank you.

 

Wait few days. I will take the laptop to the service company, cause I do not have proper tools. I will tell you what the problem is.

 

check the tread I opened: http://forum.notebookreview.com/asus/738981-asus-k72jk-weird-boot.html

we have the same problem!
If it can help you I'm not sure its a bios problem, I riprogrammed 3 times, and no luck, and yes it must be desoldered from the mobo, than you need a programmer with the right adapter for the chip.

 

Hi, do you have any news?

 

Yes, and no. They've changed the whole mainboard instead of repairing the old one, so it might have been so serious fault, not easy to fix. The other thing is that they've change if for mainboard with GT520MX and not GT540.

 

A replacement is sometimes better because there could be a tons of bugs fixed on the logic board.

 

Many OEM repair facilities tend to not reflow printed circuit boards or do solder work as it is simply too time consuming. Kevin is right: replacements are a simple and quick(er) fix when the situation calls for it. The time and labor involved can cost them more money than an outright swap.

 

For whoever is interested,
my laptop is back to life!!!


here is what I've done:
_read the bios chip (it's the one near the button battery) with a bios chip programmer and save the file (approx 4Mb)
_open the file with an hex editor, go to offset 200000 and delete from here to the end.
_open the bios file (from asus web site) in hex editor, copy the content and paste in the other file, obviously from offset 200000
_save as copy
_write on the chip
and good luck