Model number is jinmao-r
Need BIOS file. Tried to reflash and program said failed. Tried new bios chip and same.
Thanks.
Need BIOS file. Tried to reflash and program said failed. Tried new bios chip and same.
Thanks.
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Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer
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Re: Need BIOS: Samsung RC520 (jinmao-r)
Try to look for it with the board model instead. Same applies to schematics.
i.e. - BA92-08082A, BA41-01581A, etc.
Good luck.Galaxy S6 Edge x2 (Gold&White)
Asus GL552VW-i7 6700HQ|GTX 960M|15.6"FHD|16GB DDR4|512GB M.2 SSD+1TB SSD
Clevo W230SD - i7 4710MQ|GTX960M|13"QHD+|16GB DDR3L|500GB+256GB mSATA SSD+1TB HDD
Try Harder! -
Re: Need BIOS: Samsung RC520 (jinmao-r)
The file was ok..strange. But I forgot to make, on the MB, the location of pin 1
Any pointers to locate pin 1 or the schematic? Searching with the model number brings up nothing.Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails DeveloperComment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
Like i said before, you're looking with the wrong model nr.Galaxy S6 Edge x2 (Gold&White)
Asus GL552VW-i7 6700HQ|GTX 960M|15.6"FHD|16GB DDR4|512GB M.2 SSD+1TB SSD
Clevo W230SD - i7 4710MQ|GTX960M|13"QHD+|16GB DDR3L|500GB+256GB mSATA SSD+1TB HDD
Try Harder!Comment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
This is the model: BA41-01580A. NothingFull-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails DeveloperComment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
Yup.
Here:
https://www.badcaps.net/forum/attach...1&d=1381831309
I need to do a reball anyway but would like to know where pin 1 is located.Last edited by speedypro; 10-15-2013, 04:04 AM.Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails DeveloperComment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
did you try with 7-zip?Just cook it! It's already broken.Comment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
well its easy to know wich is pin \1 put your multimeter on continuity , and chek all pins to ground , the ones that will BIP(make noise) is pin 4 GND ... therefore will be easy finding pin 1 :PComment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
dj ricoh .. no samsung dont have any kind of marks , im with the same board , board model is 720 .. and its almost same board , and they dont give you position pins , unless for main QFN or KBCComment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
bios , fets etc , no position , but also who need positionn :PComment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
dj ricoh hes mentioning about pin1 on the board and not the fet
Comment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
ohhh!
now that`s dum not to remember the position
and yes your right with ground only you can find it!
Whole in chip pin1, 4 ground ; board ground then count back to pin one and you found it
Just cook it! It's already broken.Comment
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Re: Need BIOS: Samsung RC520 (jinmao-r)
Thanks! It works 😊Comment
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After installing Linux, I can no longer enter the BIOS of my Samsung Series 9 (NP900X3C) laptop. When pressing [F2] during boot I simply get a black screen. Same thing when pressing [F10] and choosing "Setup" from the "App Menu" tab. Apparently this is a relatively common issue with Samsung laptops of that generation, but unfortunately i haven't been able to resolve the issue (yet).
Things i've tried so far; reinstalled Windows 10, checked for redundant boot entries, tried to factory reset using the emergency keyhole, attempted to clear the NVRAM by physically...08-01-2025, 09:15 AM -
Hello everyone,
I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
🧩 Initial Issue- Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
- External display (HDMI) shows
07-24-2025, 02:17 PM -
The Samsung S49CG934SU monitor does not power on - no LED indicator activity and no response to power button. However, when 21V power is connected, it immediately draws 0.8A of current with no display output. The motherboard processor gets warm, and there is continuous reading activity from the W25Q128BV BIOS chip.
Suspected Cause:
I suspect the BIOS may have been corrupted during a power interruption while updating the firmware. The official website provides firmware updates, but they can only be installed via USB flash drive.
Troubleshooting Attempts:
... -
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... -
First of all thanks to all of our members who have posted previously all methods posted here.
Please leave a comment if you find something new,or have anything else to add.
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