I'm not sure on your OS for the 8300 type phone but I did do an upgrade on a BB10 phone and have had nothing but problems. If you have the older OS on your computer It may be worth a try to do a restore using that .
One question I do have is where did you get the OS your using? You list 10.3.3 type and that is NOT for the 8300 type phones. Is the model type 8300 or a newer phone.
If it is a newer BB10 version phone then you might try looking at the forum post on OS upgrades and try a re-download
JSanders posting here Upgrading OS10 devices using Autoloader
If it is 8300 type look here General 8300 Series Discussion - Curve - BlackBerry Forums Support Community