I've tried cold flashing, the result is the same is warmflashing.

I have double and triple checked the md5 checksum, and redownloaded it countless times. I've also tried different computers....

However, come to think of it, I actually HAVEN'T tried using a different usb CABLE. I'll need to buy another one and try it...

Thank Rainisto for stepping in

Just bought and tried a different USB cable. Same problem.

...Anything else I might be able to do?

are you getting: "Raw data transfer failed: Invalid argument" error message on every flashing attempt?

There isn't much that you can do if you do, as that usually just tells that there is a problem in transfer or crc error, meaning usb port timings/wrong usb port/distribution probelms, or using usb hubs, etc. If your sure that you have tested in multiple machines and with different ports then in that case you should just take device back to Nokia Care for warranty fixing (all devices should still be under 1.5year factory warranty). Nokia webpages also have imei checker page where you can check if your device still have factory warranty.

Wowfunhappy,

One thing I never asked you; did you try flashing using a Windows PC? Also were you connected to the internet when starting the flash?

If on Windows PC, is the N9 Ethernet driver installed when you connect it for flashing? If not, does it give an error that the driver isn't found?

I haven't tried flashing it on an actual PC, but I have tried on a Mac running bootcamp. I don't get any driver errors.

Rainisto, my device is under warrenty. The problem is that because I live in the US, I don't think Nokia Care here is going to fix it. I'd be happy to pay to get it fixed, but I don't know where I'd send it...

I DON'T get the "raw data transfer failed" message every time, however. Only sometimes. Other times, it just tells me that flashing failed due to an error.