Six Samsung Galaxy Dial Codes That Unlock Hidden Phone Tools

The Android Authority piece highlights six Samsung Galaxy MMI dial codes that reveal hidden phone tools: *#06# for IMEI (two IMEIs on dual‑SIM), *67 or *31# to hide caller ID, *#0808# to view and set USB connection modes, *#2663# to access a touchscreen firmware and Wi‑Fi refresh menu, *#9900# to delete old system logs, and *#0*# to run a hardware diagnostics suite for speakers, touch, sensors, and more. It also notes you must disable One UI Auto Blocker for many codes to work (it re-enables after 30 minutes on newer versions) and that carrier-locked devices may see “connection problem” errors due to carrier restrictions.