After many months of using n810, it has started behaving odd. Every now and then, the storage subsystem "disables" both flash drives (mmc1 and mmc2). They just disappear. After multiple reboot attempts(!) I the device sees them again. And everything is fine. For some while. Then again...

It just happened again to me. What I noticed is the fact that taking minisd (microsd+adapter) from the slot at least makes internal memcard visible (after reboot), immediately and reliably. Could faulty microsd be responsible for that trouble? I do not see any read errors in dmesg (well, I just checked dmesg now - when everything is fine again).

I don't know about the internal one, but I get that with the external one if the mini to micro adapter I have goes bad. I don't know if the internal card is going bad, or if your IOS is just boned and needs to be reflashed.

i had exactly that last week. external card disappeared... systematically replaced components and found it was the micro-to-mini adapter. i don't know how these things can ever break, but apparently they do.

To be honest, a lot of SD cards are fairly cheaply made, and I've even had a high-end card split open on me. Particularly, Kingston's mini-to-micro adapters won't take much abuse. I dropped my N810 from chair height once, and while the machine and the card were fine, the adapter was borked. I've seen the inside of them, and they're quite flimsy.

Yeah, a lot of the time OEM's take it right to the line between cheap and durable. The biggest problem now, and this is especially true with the economic downturn, is that they're now taking it over the edge far more often than before. I don't like that. In fact, my preference is this. I'm willing to pay a few extra bucks if you can ensure that my card will be as durable as possible. Then again, on the flipside, given the speed at which everyone is upgrading their cards, that may be a moot point for a while. We may have to wait until the market settles down a bit before we'll see any kind of long term durability return to these products. Especially when size is no longer the selling point, but rather durability and long life.

I was about to post a separate thread on this, but maybe here's as good a place as any.

I have a 4 GB Sandisk micro SD card with the SD adapter. The manual says this card should work. But the adapter is a hair too big -- just won't quite fit into the slot. I've heard that I need to get a mini SD card with adapter, and that would work. It sounds like, however, there might be a "micro to mini" adapter of sorts, so that I can still use my 4 GB Sandisk micro SD card.

Any help is appreciated before I order yet another card for my N810 (and this time a "mini" SD card).

Thanks.

The N810 has a Mini SD slot and therefore, cannot use full-sized SD cards. So, your Micro SD to SD adapter won't work, as you've discovered.

You do indeed need a Micro to Mini SD adapter. If you're willing to wait two or three weeks to receive one, you might try this ($1.08 shipped!) model from DealExtreme:
http://www.dealextreme.com/details.dx/sku.7184

Thanks. The link isn't working right now (same with their Web site), but I'll keep trying throughout the day. I'm in no rush, so I'd rather just spend a buck on this one.

I just did some searching on the "Micro to Mini SD adapter" and now see what the mini SD adapter looks like. What it looks like is something that would fit into the N810!

Thanks -- I'll put away the WD40 at this point.