Reasons for my N900 Micro-SDHC mount failure
 

I have been having so much fun with streaming media (qtify, spotify, @scene, france24, flash-based stuff) that I hadn't tried moving my music onto my N900. The fastest way to do should be to move the 16Gb Micro-SDHC that's been in my N810 via an adapte, but the N900 doesn't recognize the flash chip when I insert it. Or any others, I've tried 5 now. These VFAT formatted flash chips work in other devices like my N810 and E71.

A quick "dpkg -l | grep mount" turned up a package called ke-recv which evidently supports mounting removable media. Forcing a reinstall of this package hasn't helped.

Other than a completely non-functional micro-SDHC slot, what are the possible explanations? I am not putting them in upside down, or anything simple like that...

Re: Reasons for my N900 Micro-SDHC mount failure
 

Have you put the back cover back on? The card doesn't get mounted if the cover's off.

Re: Reasons for my N900 Micro-SDHC mount failure
 

Connect N900 to pc, insert micro sd into PC and then transfer?

Re: Reasons for my N900 Micro-SDHC mount failure
 

I just tested again to make sure, but having the cover on makes no difference for me -- flash chips that mount successfully in other devices don't in my N900.

What's the sensor/interlock that checks if the back is on? A bad sensor could explain this problem, and maybe I could override it.

Are you certain that the back cover is required for the memory card to be mounted? The manual (http://nds1.nokia.com/phones/files/g...N900_UG_en.pdf) says to put the cover back on, like a reasonable person would do. It *doesn't* say anything explicit about the back cover being required for the mount.

Re: Reasons for my N900 Micro-SDHC mount failure
 

I believe you do (not having a memory card that fits in the N900). It was required for the N800 and, indeed, if you run "lshal -m" and remove the cover, you can see the N900 monitoring changes in the cover's state.

I don't know what's up so all I can suggest is the usual: Have you ran a dmesg and noticed any error messages when inserting the card?

Re: Reasons for my N900 Micro-SDHC mount failure
 

No dmesg errors regarding the card, either when I open or close the card holder, or insert the card and then close the holder.

I do get cam_shutter state messages in dmesg, and the corresponding platform_cam_shutter property messages. I am getting these message for

• popping the cover on and off
• manipulating the levns cover
• changing the view of the sensor below the camera lens from light to dark, either by covering it with my finger or just waving the N900 around.

Re: Reasons for my N900 Micro-SDHC mount failure
 

This seems very similar to the problem that I recently encountered.

I first noticed that my camera was failing to fire when I opened the lens cover/slider. I checked dmesg, and i could see that it wasn't a software problem related to a dodgy package - the camera shutter changes were being correctly logged (cam_shutter), and the problem persisted after reflashing.

I then also noticed that none of my external cards (that were previously working) could be mounted by my device. I wondered if they could be related...

So, I popped into Vodaphone, and tested another back cover, and lo and behold, the camera and card started working again...the fault was positively confirmed to be with the back cover.

I suspect there is a sensor of some sort embedded in kickstand of the back cover that has become displaced or faulty.

I would suggest that you check if the camera software fires when you open the lens cover, and test with another N900 back cover if possible.

Re: Reasons for my N900 Micro-SDHC mount failure
 

Thanks ibs. Swapping the cover fixed things, as suspected.