Problem Naomi Netdimm bricked?

[Eating dried fruit]

Attempted to update the firmware on my netdimm this evening so i could run a CF reader, when it timed out. Now the net is not recognised and I get error 22. When I attempt to test it in test mode, the firmware version reads 0.0 and times out. Is there any solution to this other than desoldering and replacing the flash chip on the net itself? If not, where do I get one of those chips from?

 

[Retroman839]

Dam ..
Have you tried upgrading firmware Again ?

 

[Eating dried fruit]

Pc and Naomi no longer see/connect to the dimm.

 

[Retroman839]

I update with pi loader .
But Likley to be same ..

 

[jonhughes]

Have you had any experience in SM working? Can you de-solder and reinstall a new chip?

 

[Eating dried fruit]

Have you had any experience in SM working? Can you de-solder and reinstall a new chip?

Yes, but need to know where to get a chip, and which one to swap. Can’t find any information online. I think it’s my only option now.

 

[yoganuggy]

 

[Retroman839]

Upgrading Naomi DIMM F/W upgrade from 1.02 to 4.02 – Things Geek

thingsgeek.net

 

[Eating dried fruit]

Great. Seems pretty straightforward, although to be honest I would prefer to get hold of a pre-programmed chip. Doesn’t seem like that will happen so I’ll give all this a go and report back soon. In the meantime, thanks for all your help guys.

 

[Ace`]

What version fw do you want? I might have some preflashed flash chips like from upgrading a bunch of early dimms that you can't update through software.

 

[CMYKhazi-Dan]

Just not how it would work out if I attempted that! 😭😆

 

[Eating dried fruit]

Just not how it would work out if I attempted that! 😭😆

Don’t be afraid, as long as you have plenty of good quality flux, you can’t go wrong.

 

[Eating dried fruit]

What version fw do you want? I might have some preflashed flash chips like from upgrading a bunch of early dimms that you can't update through software.

Ideally, I’d like 4.01 or 4.02 because I want to use compact flash adapter. Otherwise anything above 3.17. I actually have three dims the other two work but also need upgrading, so if I have three spare chips just in case I mess up that would be great. The plan is next time to update from The piloader instead. The problem I think last time was under voltage because I was using an ATX PSU instead of a proper sun PSU (of which i actually have two!)

 

[Retroman839]

Ideally, I’d like 4.01 or 4.02 because I want to use compact flash adapter. Otherwise anything above 3.17. I actually have three dims the other two work but also need upgrading, so if I have three spare chips just in case I mess up that would be great. The plan is next time to update from The piloader instead. The problem I think last time was under voltage because I was using an ATX PSU instead of a proper sun PSU (of which i actually have two!)

I have updated all mine with
Pi loader + sun psu no issues

 

[Eating dried fruit]

I have updated all mine with
Pi loader + sun psu no issues

As far as i understand, you just put the firmware in your rom folder and load it as you would a game. I guess I’m just paranoid now as I don’t want to brick another so would like to fix the faulty one and successfully update it as a test subject!

 

[Retroman839]

As far as i understand, you just put the firmware in your rom folder and load it as you would a game. I guess I’m just paranoid now as I don’t want to brick another so would like to fix the faulty one and successfully update it as a test subject!

Yeh Thats right .

 

[Ace`]

I'll have another look tomorrow but I could only find 5v flash chips, if you aren't in a hurry I could order some 3.3v ones next time I do an order.

 

[Retroman839]

Do you have a hot air station ?
If you have a good one ..
Removal looked ok to do ..

Then such tiny amount of solder
Looked ok to do that

 

[Eating dried fruit]

Do you have a hot air station ?
If you have a good one ..
Removal looked ok to do ..

Then such tiny amount of solder
Looked ok to do that

I have removed cips like these before with no problems. I repair/service/mod retro hardware quite often (when I'm not bricking it!)

 

[Eating dried fruit]

I'll have another look tomorrow but I could only find 5v flash chips, if you aren't in a hurry I could order some 3.3v ones next time I do an order.

Yes please. How much would you want each?