Guys does anyone have bios file for Samsung R469? motherboard code: BA41-01100A rev. 1.0
Unit totally dead no power. power button have 3v. Thanks
Unit totally dead no power. power button have 3v. Thanks
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Re: Samsung R469 bios file
check voltage on battery connector and on bios chip also -
Re: Samsung R469 bios file
thanks man. after a little bit of cleaning. now it turns on. It has power but no display.
voltage on battery connector (batt conn):
pin 6 and 7= .36v
pin 4 and 5= 3.36v
pin 3 = 2.5v
pin 1 and 2 = ground
bios voltage:
pin 7 = 3.30v
pin 8 = 3.33v
the rest pins are zero volt. voltages are taken with laptop off and with charger attachedComment
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Re: Samsung R469 bios file
check charger ckt page no 52.
aanan.Comment
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Re: Samsung R469 bios file
what do you mean ckt? unit has power I suppose so. but fan does not spin. Leds are light on power and on switch button. still need bios file. hope someon has. thanksComment
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Re: Samsung R469 bios file
try this.Comment
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Re: Samsung R469 bios file
thanks man. I will try this. I'll update you guys soon
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Re: Samsung R469 bios file
update on this. I already reprogram bios using aanan file but still no go. I also replaced nec tokin but same issue. Laptop turns on but cpu fan does not spin and gives no display on screen. Do you think this is related to video chip which is an Nvidia N10m?Comment
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Re: Samsung R469 bios file
my money its on that NVidia chip!Just cook it! It's already broken.Comment
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Re: Samsung R469 bios file
hmm tried a soft reflow on gpu but still no cpu fan spin. I did check on voltages and found no voltage on Pin no.1 and no.3 of J3 fan connector. Also notice there's no voltage on L11 3.3v and L10 5v of TPS 51125 ic. This should be my Alw voltages right?
Pin 8 vreg3 3v is present
pin 17 vereg5 5v is present
Test done only on charger without processor, memory and cmos battery. Having hard time locating components as only limited prints on the boardComment
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Re: Samsung R469 bios file
look for shorts on this icComment
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Hi all,
My Samsung Galaxy Book 2 Pro 15.6-inch laptop has no display and won't boot.
The charging red LED lights up, but the charging screen doesn't show any indication.
When I press the power button, the blue LED cycles on and off three times, then the screen doesn't turn on, and the device won't boot.
(I've tried removing the battery and resetting the device, but the issue persists.)
NoteBook Model name : Samsung NT955XED-KK51G(Galaxy book2 pro, i5-1240p, 15.6inch AMOLED)
PCB model name : Venus2-15-5G(REV1.2), Venus2-15 ADL NPC
S/N : 5RNK9FFT70... -
Hi everyone
I noticed on the Xgpro software the BIOS backup files have extra bytes at the end when reading some chips, this is because the Xgpro software also reads the OTP region of those flash chips, and by default will append that region to the saved file
Programmer models: XGecu TL866II Plus / T48 / T56 / T76
Example: GD25LQ128D (1.8V), IC size is listed as 0x1000000 Bytes (16777216 bytes) + 0xC00 bytes, those extra 0xC00 bytes will be appended to the end of the saved file by default, resulting in a file size of 16780288 bytes
There's also an extra OTP Secu.R... -
HI all.
I need Bios dump File for
NT750QCJ or NP750QCJ(Galaxy Book Flex Alpha - 15inch).
My Samsung Galaxy Book laptop Flex Alpha has no display and won't boot. -
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I got a Lenovo ThinkStation P520 (Type 30BF) from a friend, asking me for a repair. Windows 11 offered a firmware upgrade as an optional update, and it failed.
The emergency flash procedure from the hardware manual has also failed. So, I asked an acquaintance with better skills to flash the BIOS directly.
However, the chip (a Macronix MX25L25673GMI-08G) has a size of 32 MB, and the BIOS file from the Lenovo website (extracted with UEFITool) has a little more than 16 MB. Thus, the software my acquaintance used (SiberiaProg v1.45, with a CH341A Programmer)... -
Hello Everyone,
I have Thinkpad T560 Which has corrupted BIOS. I have acquired Ch341A SPI flasher to program the BIOS externally. I see that to program the BIOS, i need a bin file for the BIOS. I was able to extract the .exe file of BIOS from Lenovo given here in this link:
https://pcsupport.lenovo.com/au/en/p...me=BIOS%2FUEFI
In the extracted files, I see that BIOS containing file has extension .FL1 and I need to extract or convert it...
Comment