To remove the pattern lock:
- Download
Minimal ADB
- Install it
- Go to the installed directory
- Hold shift and right click on adb and click open command prompt here
- Plug in the phone
- Type "rm /data/system/gesture.key"
an MHL adapter should work fine. If the digitizer is still alive. Otherwise, you could use a Bluetooth keyboard and mouse.
If you want to copy your data to your PC, you can use adb again.
Same steps as above but instead type "adb pull "/sdcard/[folder name]""
Or you can download ESFileExplorer and copy it to your PC via smb network
But after removing your pattern lock, you should be able to copy your data by regular USB cable.