X Mobile X2 Flash File139 59 202 101 Upd

Data Wipe: Flashing inevitably erases all internal storage (contacts, messages).
Bloatware: Depending on the carrier region this file was dumped from, it may include pre-installed "demo games" or carrier apps that cannot be uninstalled without root access.
Outdated Security Patch: As a feature phone firmware, it likely does not have the latest Android security patches (if it is Android-based), making it unsuitable for secure banking if used as a primary smartphone.