Duet 3 mini 5+ Wifi Suspected SD Card Issue

MurphDurtay

@jay_s_uk Duet 3 mini 5+ Wifi V1.0

jay_s_uk

@MurphDurtay its probably plagued by the original duet 3 mini SD card issues. one for @Phaedrux
(and i should've read the thread title)

Phaedrux

When and where did you purchase the Duet?

MurphDurtay

@Phaedrux I purchased the Duet in March of 2021 from Filastruder, however I didn't use it until last Wednesday. I don't know where that would put me with the warranty. If I can't warranty it I have a friend with a rework station and some experience with SMD soldering. Do you think re-soldering the SD card reader will fix it?

Phaedrux

Let me get back to you on how best to proceed.

MurphDurtay

@Phaedrux Ok thanks

Phaedrux

We can offer a refurbished unit on exchange at reduced cost, or if you want to pursue to repair option with your friend with a hot air rework station I can point you at the areas to reflow that may solve the issue.

Another option is to actually use a Raspberry Pi and run the Duet in SBC connected mode. The SD card slot on the Duet doesn't get used at all in this configuration.

dc42

@MurphDurtay further to the reply above, we can supply you with a refurbished Duet 3 Mini at no cost. If you wish to go this route, please email warranty@duet3d.com and include a link to this thread in your email.

If you want to try rework, the part most likely to need reworking is U3 which is a tiny 16-pin chip behind the SD card socket. This is difficult to rework because of its small size; however it is often sufficient to put liquid no-clean flux on each side and use a hotplate and hot air to reflow the solder. The nearby plastic connector must be protected from the hot air, also take care not to overheat the SD card socket because it has plastic parts inside - and remove the SD card from the socket first.

MurphDurtay

@dc42 Thanks! I'll send an email for a refurbished unit. My friend looked at the chip he would need to reflow and said he wasn't confident he could do it.

MurphDurtay

@Phaedrux I do eventually want to use the duet in conjunction with a raspberry pi, but they are hard to find right now and if you can find them they are ridiculously overpriced.