Need firmware to upgrade BTC 3212IM to 4816IM

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Well, I got the firmware upgraded and it locks up when I put blank CD’s in the drive (can’t even get the drive door open). But when I put a CD into the drive that has already been written too, it’s fine. The write speed shows up correctly and everything if I put a CD that has already been written into the drive.

So in essence, I can’t burn any blank CD’s. Good thing I made a backup, I went back to it.