My Samsung NC10 laptop has a completely blank screen on startup. The power and on light come on, the HDD whirrs but the HDD whirring orange light on the front doesn't work. After 60 secs or so, the HDD stops.

So far I have tried disconnecting everything for 10 mins and repowering; running with power on and no battery or power connection and reseating the RAM.

Ideas?

Dani AI

Generated

Quick summary based on posts and 's replies: the machine powers up (HDD spins), the internal screen is usually blank but occasionally shows the BIOS with a "System Configuration Data Write Error" and keyboard keys (F1/F2) are unresponsive. That combination narrows the fault down to two practical buckets: a display/backlight/LVDS-cable problem, or a board/BIOS (NVRAM/flash) problem. Try the inexpensive, non-destructive checks first.

  1. External-display and backlight check — plug an external monitor to the NC10 VGA out and power on. If the external shows POST/BIOS, the GPU/BIOS is running and the internal LCD, inverter/backlight or hinge cable is suspect. If nothing appears externally either, the fault is likely on the mainboard or firmware. Also try the simple flashlight test against the LCD in a dark room: a very faint image means the panel is working but the backlight/inverter is dead.

  2. Minimal-configuration boot — power off, remove battery and AC, then boot with only one known-good RAM stick (try each stick in each slot if there are two). Remove the HDD, WWAN/WiFi module and any nonessential peripherals. A stuck key or shorted keyboard ribbon can freeze POST; disconnect the keyboard temporarily if possible.

  3. Power and board inspection — check the adapter voltage against the label with a multimeter and wiggle the DC jack while watching LEDs. Open the case (if comfortable) and inspect for bulging/leaking capacitors, burn marks, or a loose LVDS cable at the display connector; reseat connectors carefully. Replace the CMOS/RTC coin cell if available — cheap and quick — since a failed RTC/CMOS can produce write errors.

If those steps point to the display, replace the panel/cable; if nothing displays externally and minimal-booting fails, you’re likely facing corrupted BIOS or a motherboard fault. Reflashing or chip-level recovery can work but often requires a service tech or programmer and may be comparable in cost to a replacement board or a low-cost used NC10. Document observed behavior (photos of board, exact LEDs, any POST text) before sending to a repair shop or posting for remote help.

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Do you hear the fan functioning?

No fan. I just left it without power or battery for a bit, restarted it without battery and got a screen display from the BIOS, which gave the option between setup and continue. Neither worked. I powered off and can't now get any screen display again.

OK, I have the BIOS screen again which ends with 'System Configuration Data Write Error' then f1 and f2 as options. Neither work. Bios battery problem?

No, not unless you have a REALLY old machine. Could be a hardware issue. But first, the simple option: go into BIOS setup, the Advanced? section, and learn about the PnP options to reset the data. Else there [may] [is likely to] be an option for the OS to read hardware configuration data itself, and not to copy it from BIOS. Try that.

OK, I can't get into the BIOS set up. On the rare occasions when I get a display with an error message from the BIOS it gives choices of F1 to continue and F2 to reset but neither key work. Could I boot it via diskdrive with a Linux programme attached via a USB?

Does the F2 key not get you into BIOS Setup?
Without BIOS running a Linux pgm won't get loaded, even for a boot. You would have to pull the hdd, slave it elsewhere, to get data off it.
"No, not unless you have a REALLY old machine." was in reference to the CMOS battery question; in modern machines the sys config data is held in memory elsewhere [not CMOS]. BIOS builds such a table and stores it, and will pass it to the OS if you set it so, but you can force the OS to read its own hardware data by a BIOS setting.
A hardware item can cause an error such as you are getting. Or BIOS itself.
I don't like to recommend BIOS flashing, but it might help...

Thanks. Unfortunately, F2 won't get me into BIOS setup. The computer freezes at that point. I notice from some posts that an RTC reset of the BIOS might help: otherwise, what's the best way to flash the BIOS?

Ah. Well, you could try a RTC reset by pulling the battery, but this sounds easier [battery is tough to get at?]: http://www.sammynetbook.com/forum/threads/9287-cmos-password-NC10
Funnily enough, that procedure on most machines also resets any BIOS password that may exist.
Still cannot enter BIOS Setup with F2? Ok, flashing....
Make a bootable flashdrive; use HPUSBDisk from:
http://www.softpedia.com/progDownload/HP-USB-Disk-Storage-Format-Tool-Download-123786.html
and boot files from:
http://www.sevenforums.com/attachments/tutorials/42023d1260810265-ms-dos-bootable-flash-drive-create-win98boot.zip
or from:
http://files.extremeoverclocking.com/file.php?f=196/
Next, load the correct BIOS update utility onto it: choose the correct DOS Executable from this page:

Insert USB key, start sys and it should flash directly.
Problems during flashing can be dire. Take care, read up on it. If a flash does not work, try again, and then perhaps again with another Dos executable

Thanks. Well, I tried shorting the RTC and that didn't work so am looking at flashing the bios. But which DOS executable should I use, there seem to be about a dozen. Fix CPUID Fail during Post sounds the closest.

OK, is the logic here load a reduced version of Windows 98 via a USB, enough to start 'sys' and then flash the BIOS from that?

Ah, no. You have to get BIOS to run. Try holding down the Esc key as you power it up [or even F2]. Esc may get you to the drive boot option menu.
If BIOS still will not run then I suspect a hardware problem as above. Disconnect your hdd coupling and try.

And the 11CA version is probably the best.

OK, I have tried taking out the HD but still get the same problem. The BIOS screen freezes, whether or not I press Esc, F1, F2 etc. Any further ideas, or is it time for a new netbook (this one is only three years old!)

Mmm, it's looking bad. If it will not boot further without the hdd [it would ask for a boot device] then it comes down to video [it's integrated, untouchable], BIOS itself corrupted, or a mb failure. RAM failure [you would need to test the stick in another system] should result in beeps sounding. If the BIOS is corrupted then things get expensive : a preprogrammed chip and a technician to solder the new chip.
I cannot think of any fresh approaches. There may be an internal voltage supply failing, but you would need a tech to check/repair those.

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