Use a hex editor to patch updater.exe yourself (NOP the CRC jump). This is advanced but cleaner than trusting a pre-patched binary.
: Select the extracted firmware file and click Upgrade . zte zxv10 w300 firmware updaterar patched
Downloading "patched" firmware from unofficial forums or file-sharing sites is risky, as these files may contain malware or backdoors. Use a hex editor to patch updater
Save current settings before starting any update. compressed in the RAR format.
The text string you provided appears to describe a modified (patched) firmware file for a specific ZTE router model, compressed in the RAR format.