Need BIOS: Samsung RC520 (jinmao-r)

[speedypro]

Model number is jinmao-r

Need BIOS file. Tried to reflash and program said failed. Tried new bios chip and same.

Thanks.

[Learn2Day]

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.

[speedypro]

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.

[Learn2Day]

Re: Need BIOS: Samsung RC520 (jinmao-r)

Like i said before, you're looking with the wrong model nr.

[speedypro]

Re: Need BIOS: Samsung RC520 (jinmao-r)

This is the model: BA41-01580A. Nothing

[Francisco.s]

Re: Need BIOS: Samsung RC520 (jinmao-r)

Model number is jinmao-r

Need BIOS file. Tried to reflash and program said failed. Tried new bios chip and same.

Thanks.

Have you make a backup of the old bios?
Please post it.

[speedypro]

Re: Need BIOS: Samsung RC520 (jinmao-r)

Have you make a backup of the old bios?
Please post it.

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.

[Francisco.s]

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.

I have download bios file from Samsung support, (BIOSUpdate.exe) and can`t extract any bin, rom, fd etc.
How do you extract the dump file?

[dj_ricoh]

Re: Need BIOS: Samsung RC520 (jinmao-r)

did you try with 7-zip?

[Francisco.s]

Re: Need BIOS: Samsung RC520 (jinmao-r)

did you try with 7-zip?

Yes, I have tried 7zip, and let me see the files inside, but the largest one, is less than 1,3 Mbytes.
(I have attached a screen capture of 7zip)

[speedypro]

Re: Need BIOS: Samsung RC520 (jinmao-r)

I have download bios file from Samsung support, (BIOSUpdate.exe) and can`t extract any bin, rom, fd etc.
How do you extract the dump file?

Never did. I got it off the actual bios chip.

[highpulse]

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 :P

[dj_ricoh]

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 :P

pin 1 its always mark with dot or line aside the chip.

usually they make a white square around the chip and near the first pin they make the line a little bigger!(white line)

[highpulse]

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 KBC

[highpulse]

Re: Need BIOS: Samsung RC520 (jinmao-r)

bios , fets etc , no position , but also who need positionn :P

[dj_ricoh]

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 KBC

every soic 8 pin chip got a whole or some paint on it!
very hard to see. put a tweezer soft on top and and search it

[highpulse]

Re: Need BIOS: Samsung RC520 (jinmao-r)

dj ricoh hes mentioning about pin1 on the board and not the fet

[dj_ricoh]

Re: Need BIOS: Samsung RC520 (jinmao-r)

dj ricoh hes mentioning about pin1 on the board and not the fet

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

[tech_musiquero]

Re: Need BIOS: Samsung RC520 (jinmao-r)

Thanks! It works 😊

[tony stark]

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.

this bios is ok... Thanks for share , jinmao-r