Since upgrading to latest WM5 - Activesync corrupts data copied to my storage card!
- From: Matt <nospam@xxxxxxxxxxx>
- Date: Sat, 02 Sep 2006 16:13:03 GMT
Hi, this is my first post to Windows Mobile newsgroup but I think I have
found a significant issue. I don't know if it only affects the Dell X51v
PDAs with ROM version A12 or other models... anyway cut and paste from
my blog (http://buckoa51.blogspot.com/)
I was recently using my Dell x51v as an mp3 player and I noticed as one
of my songs was playing that there were several clicks and pops that I
had not noticed before. When I got home I listened to the original file
on my desktop PC and everything seemed fine.
Investigating further, I deleted the faulty mp3 file off my PDA and
copied it over again, only to find that the glitches in the file were
present again.
Determined to get to the bottom of the problem, I deleted the file
again, then before copying it over I took an md5 hash of the file. I
then renamed the file and copied the file over with activesync, then
back again to my desktop. I took another md5 and guess what? Yep, the
Activesync had screwed the file up, the md5's were different.
It is not just mp3's either, I tried archiving the file and sending it
up, and it still came back with a different md5.
I repeated the same experiment but using my compact flash reader and the
md5's came back the same, I then repeated the same experiment but using
a different PDA and storage card (my T-Mobile MDA vario, also running
the latest firmware, equipped with a 2gb mini-sd card) and the md5's
came back the same.
This is rather worrying since I use the x51 as a compact flash reader at
work. I doubt Dell customer service will be overly helpful (I can just
imagine trying to explain all this to a customer service rep)
More on the Problem:
Seems like this is definitely a problem introduced with the latest
firmware upgrade on the X51v. Further investigation and experimentation
revealed that:
- Upgrading Activesync to 4.2.0 did not cure the problem
- Using a different compact flash card (a 128mb one instead of my
regular Lexar 80x Professional 4gb one) in the same PDA did NOT result
in corrupted files
- Using the same compact flash card in a different X51v (ROM version A06
- My PDA with the fault is A12) did NOT result in corrupted files.
- Using the third party utility "Cardexport" (which basically turns your
PDA into a USB Flash card reader) instead of Activesync to copy the
files across did not result in corrupted files.
So if you use large capacity flash cards in your PDA and you have not
upgraded already I would strongly advise you to hold off at least for
the time being!
Has anyone else come across this problem? If so please leave a message
here. I would like to get to the bottom of this.
.
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