2005, sold a customer a 512MB USB Thumb Drive.
It was a Leadtek 512Mb USB Thumb Drive with Read Write Protection switch.
Last year, it complains how he can not write to his drive. He brings the drive to me. I look at it. I am having simulare problems too. I send it in for RMA. However i get some RMA guy at my supplier's end telling me that i hand the read write protection turned on.
Now I did know about the read write protection. However there is no marking on this drive saying which is LOCK and UNLOCK.
I get it back, and it's working fine.
A few month later, client has some troubles again. I had advised him to switch the Read Write Protection on and off, and this worked.
January 2007, it turns out that no mater how many times he tries, he can not get Leadtek 512Mb USB Thumb Drive to write any more data. Even though it only 1/2 full.
By now it past it warranty, so I sell him a new 2Gb KOENIG USB pen drive. This one does not have any read write protection. So things should be all right. BTW, I sell a lot of these pen drives and not have one come back.
Today, my client calls me up, and he's having the same problem again.
Now I will be able pass this one under warranty. However I am not telling RMA the history of this guy's last pen drive.
I got a sinking feeling that some thing else is screwing up this guys pen drive. Any suggestions on what could be causing this?