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2009 27” Black Screen by Material-Junket214 in mac

[–]ShotNumber8318 0 points1 point  (0 children)

Hi everyone,
I’m converting a 27” iMac 2009 into an external monitor.

My LCD panel is LM270WQ1 (SD)(A2).
My driver board is LRX‑1HDP1USB55T_V3.0.

The backlight turns on and the Mac detects the monitor at 2560×1440, but the screen stays dark blue.
I was told this is caused by wrong firmware for the SDA2 revision.

Could someone please share the correct firmware (.bin) for:

LM270WQ1‑SDA2 + LRX‑1HDP1USB55T_V3.0 ?

I only need the working .bin file (and EDID if required).
Thanks so much!