Hello all and greetings from Bulgaria.

Recently I came across a well-preserved Nokia 6230i, but the only issue is that it has Turkish, as the only language. I've managed to download the Phoenix tool, and some firmware, hoping to update it, so at least I can have English.

Unfortunately, I'm ending up with an error message when clicking on refurbish button:

Ideally, the end goal is to have Bulgarian language on that phone. I would really appreciate your help, druzyna Polska!

Nokia 6230i is based on DCT-4 platform. DCT-4 don't support USB flashing, so you can't change language pack with Phoenix. You must use service box and F-BUS cable to flash 6230i.
With Phoenix you can flash only BB5 phones.