Member Avatar for uterian

Hi
I've an Acer Aspire 5739g laptop. I've opened my screen(my laptop's own monitor) to check my wireless cables because my wireless does not work and I thought may the cables be damaged in the screen but they were not. So I closed the screen again. Only thing I did was pulling the screen to myself a little to see what's backwards of it, and plug of webcam and microphone cables. I didn't plug of any screen cables. After everything is connected again, I tried to open my pc but only thing I see was pure white screen (no black , no color). Actually everything except screen is working. Fan, hdd, sound. Without seeing anything I opened pc, even entered my password and log in to windows and confirmed with sound.
I've searched online about this issue and I've tried those;
-plug of power supplies (ac and battery)
-plug of rams
-plug of the small flat battery near the rams
any of them didn't work for me
Any help is appreciated
Thank you
Ozan

Edited by happygeek because: moved
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  • Latest Post Latest Post by nakrah

Dani AI

Generated

Brief, practical follow‑up for this thread.

A uniformly white screen while the laptop otherwise boots typically implicates the display assembly (panel timing/T‑CON, the panel’s power/backlight driver, or the LVDS ribbon) rather than RAM or BIOS. As pointed out, ribbon/connectors are worth checking; since already reseated the panel end, the next diagnostics are the external‑monitor check that suggested and a simple backlight check to narrow the fault.

Recommended diagnostic sequence:

  1. Connect an external display (VGA/HDMI) and power on. If the external shows BIOS/desktop, the GPU/motherboard output is OK and the fault is inside the screen assembly or cable. If external is blank, suspect the mainboard/GPU.
  2. With the laptop powered and the white screen visible, shine a bright flashlight close to the panel at an angle. A very faint login/desktop image under the light = backlight (inverter/LED driver) problem. No faint image and a solid white screen = likely T‑CON/panel or LVDS data issue.
  3. Power down, remove AC and main battery, then carefully open the bezel and reseat the wide flat LVDS ribbon at both the panel and the motherboard ends (open the small flip latch, align, close). Inspect the cable around the hinge for kinks, cuts or frayed shielding. Also check any small separate board (inverter/T‑CON) at the hinge for loose connectors.
  4. If available, test with a known‑good cable or replacement panel to confirm.

Safety/caution: always remove power and battery before disassembly and avoid forcing latch pins. If panel/cable replacement is uncomfortable, a repair shop can bench‑test quickly (tell them to test external output, the flashlight test, and the LVDS continuity).

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Member Avatar for Rik_

You need to open it up again and make sure the ribbon connector to the back of the screen is in correctly. A white screen is caused by a bad connection, not by ram or bios!

Edited by Rik_
Member Avatar for uterian

Thank you very much
But I don't know what a ribbon connector is? Can you describe it or find a photo for me ?

Member Avatar for uterian

Ah, I've found what it is, but I've already checked to plug out and re plugin it , it still doesn't work.

Member Avatar for nakrah

I recently had an Acer with this same issue.

It turned out to be an issue with the LCD controller/Inverter board.

If you can get an external (VGA/HDMI) display working that would confirm the Video card, RAM, etc are OK.

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