You can find official and regional firmware packages (including Cyrillic versions for Russian/Uzbek support) on repositories like LumiaFirmware for RM-1134 or support.arabunlock.com . Flashing Tools:
Turn off the phone and connect it to the PC via USB while holding the required boot key (usually the "OK" or "Up" button).
Open your chosen flashing software (e.g., SP Flash Tool or Recovery Tool).
Click the "Download" or "Flash" button and wait for the "Successful" message before disconnecting. Download SP Flash Tool for Nokia phones
