How+to+use+secret+codes+on+samsung+galaxy+a7+2+work Access

| Purpose | Code | |--------|------| | General Test Menu (screen, sound, sensor, etc.) | *#0*# | | Battery & Statistics | *#0228# | | View IMEI Number | *#06# | | Service Mode (advanced network info) | *#0011# | | Software & Hardware Info | *#12580*369# | | Camera Firmware / Test | *#34971539# | | Proximity Sensor Test | *#0588# | | Touchscreen Test | *#2663# |

Code: *#0283#
Action: Checks microphone, speaker, and modem voice path. Useful after water exposure or muffled call quality. how+to+use+secret+codes+on+samsung+galaxy+a7+2+work

The most powerful secret code on the Galaxy A7 is *#0011#. Once inside, you can access deeper menus: | Purpose | Code | |--------|------| | General

Band Selection lets you force your phone to use 4G LTE bands only (useful if you’re in a weak signal area). But be careful—changing the wrong setting can break cellular connectivity until a factory reset. Code: *#0283# Action: Checks microphone, speaker, and modem

Using these codes is simple and does not require any third-party applications.