Since you flashed to pr1.1 and got errors I presume you have your data backed up on your PC and just want to upgrade your device's firmware...

As rainisto said re-read the flashing guide which can be found here...

Basically, you can download any global (ROW) pr legacy 001 firwmare for pr 1.3 from navifirm then flash it... If you are unsure of what firmware to flash post your capacity of device (16/64GB) and colour; product code can be included but not necessary as you don't want to flash higher than pr legacy 001 firmware...