Save problems, already trade the battery but not works

NES/SNES/N64
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gcpro
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Save problems, already trade the battery but not works

Post by gcpro » Tue Oct 28, 2014 4:45 pm

Hi! My Super Smash Bros (N64) give me save problems, it dont keep the save after power off, i've tried to trade the battery but not work, i've test the battery in my Zelda OoT and works, so the problem is not with the baterry,

Can someone help me? i've tried i lot of thing, include trade the resistors/capacitors (i don't know what is, just tried to use another from f-zero but don't work too.)
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Re: Save problems, already trade the battery but not works

Post by emu_kidid » Wed Oct 29, 2014 12:15 am

Upload pictures of the PCB, front and back in high def with macro.
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gcpro
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Re: Save problems, already trade the battery but not works

Post by gcpro » Wed Oct 29, 2014 3:31 am

emu_kidid wrote:Upload pictures of the PCB, front and back in high def with macro.
Here! emu_kidid!! thanks for help.
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Some considerations:
1 - the solder points are very ugly because...i've done the first install of battery beautiful and very clean, after this wont work i've tried to do other parts aaaaand have not alchool around to clean... but I guarantee, there is no bridge pins or colder solder

2 - about this red wire... well, after remove and put some parts to test, i've messed up some solder point, so i've remade the trace with this wire and it come back alive...

3 - i think that is not a install problems because before i trade the original battery, i've tested this and it give me the correct value, 3v, the battery works! but the cartrige begin to lose saves with this battery... i really don't know what happens...

thanks for help!!
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Re: Save problems, already trade the battery but not works

Post by emu_kidid » Wed Oct 29, 2014 9:25 am

Super Smash Bros is a 16KBit EEPROM game, I would check all connections from the narrow IC and the 8 pin IC all the way to the edge connectors they're meant to go to (trace these and check with a multimeter).

It looks like pin 5 on the edge connector might have a corroded trace, check that too.
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gcpro
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Re: Save problems, already trade the battery but not works

Post by gcpro » Wed Oct 29, 2014 2:15 pm

emu_kidid wrote:Super Smash Bros is a 16KBit EEPROM game, I would check all connections from the narrow IC and the 8 pin IC all the way to the edge connectors they're meant to go to (trace these and check with a multimeter).

It looks like pin 5 on the edge connector might have a corroded trace, check that too.

edit: Hi emu_kidid, thanks for reply!
Well, i've tested, all works, but still cant save.. i'v removed this 8 pins ic of F-zero and put on Smash, still don't save so i trade again... i give up XD
thanks emu!
Last edited by gcpro on Wed Oct 29, 2014 8:56 pm, edited 1 time in total.
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Re: Save problems, already trade the battery but not works

Post by gcpro » Wed Oct 29, 2014 6:52 pm

emu_kidid, super smash bros n64 is not a SRAM save type?
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Re: Save problems, already trade the battery but not works

Post by megalomaniac » Wed Oct 29, 2014 7:04 pm

gcpro wrote:emu_kidid, super smash bros n64 is not a SRAM save type?
:shock:
emu_kidid wrote: beer is like WD40 for megalomaniac's brain, gets the gears moving
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Re: Save problems, already trade the battery but not works

Post by gcpro » Wed Oct 29, 2014 7:52 pm

megalomaniac wrote:
gcpro wrote:emu_kidid, super smash bros n64 is not a SRAM save type?
:shock:
sorry mega, i mean to say this http://www.elitendo.com/n64/usa_boot_save_list.html
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Re: Save problems, already trade the battery but not works

Post by emu_kidid » Sat Nov 01, 2014 10:41 am

ugh, it's SRAM, my mistake, it's been a while. Just swap the ROM to another cheaper equivalent board like Ken Griffey Jr.
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Re: Save problems, already trade the battery but not works

Post by gcpro » Sun Nov 02, 2014 6:00 am

emu_kidid wrote:ugh, it's SRAM, my mistake, it's been a while. Just swap the ROM to another cheaper equivalent board like Ken Griffey Jr.
Hi emu, i think the rom is the little ic of the board right? with 8 pins? if yes i've tried it with the rom from F-Zero and not works, so i decide to buy another...

thanks for tried to help me emu!!! thanks for the reply!!
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Re: Save problems, already trade the battery but not works

Post by emu_kidid » Mon Nov 03, 2014 10:08 am

I meant swap the ROM chip (the large one marked) MX NUS-NALE-0
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Re: Save problems, already trade the battery but not works

Post by gcpro » Sun Nov 09, 2014 4:50 am

emu_kidid wrote:I meant swap the ROM chip (the large one marked) MX NUS-NALE-0
Oh! ok! i'll try!!! thanks emu!!
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Re: Save problems, already trade the battery but not works

Post by emu_kidid » Sun Nov 09, 2014 8:40 am

Don't heat it for too long, you might damage it.
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