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BIOS L340-15IRH Gaming, L340-17IRH Gaming FG541 FG741 NM-C361

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L340-15IRH Gaming, L340-17IRH Gaming
L340-17IRH Gaming Laptop (ideapad)
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Lenovo l340-15irh FG541 fg741 nm-c361 Rev1.0 photo
boardview Lenovo L340-15IRH - NM-C361 REV0.3 BoardView.tvw
Schematics FG541 FG741 NM-C361.pdf
Lenovo IdeaPad L340-15IRH - NM-C361 N17P-G0.pdf
Lenovo IdeaPad L340-15IRH - NM-C361 N17P-G0.jpg
 

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ECite.bin.zip
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FG541 FG741 NM-C361.pdf
6.6 MB · Views: 1,552
Last edited:
Click to expand...
Hello ThienBui,

I have two motherboards NM-C361 which have different way of EDP_AUX. One motherboard has CPU_EDP_AUX, and the other has IFPD_AUX, comming from gpu.
The only thing that was broken on the motherboard with IFPD_AUX whas the EC. I replaced it, and programmed it with your file. Problem, I have no display on laptop display, but I do have display on externel screen. LCD cable, and screen tested, and are oké. 20v is on lcd connector. Also pin 16, 21, 24, 30 have 3.2v, and pin 19 has 2.4v.
Both laptops have same gpu, but cpu is different. On CPU_EDP_AUX it is i7-9750H, and on the IFPD_AUX it is i7-9750HF.
Are the EC, and BIOS file for both laptops the same?
Do I need to have voltage on pin 11 EDP_AUX, and pin 12 EDP_AUX#?
 

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Foto 22-11-2022 13 54 20.jpg
ThienBui said:
Hardware is difficult to diagnose online I can only help with BIOS related errors
Click to expand...
Read question from again, because I ask you if there is a difference in the EC and BIOS files with two motherboards, both NM-C361, but different way of function.
 
Theoretically the same Motherboard code will use the same BIOS file, but there are many hardware problems that lead the BIOS to work differently...
 
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