Some codes may be disabled by specific carriers (like Verizon or AT&T) even if the hardware supports them.
In most cases, the hidden menu or information will appear as soon as you type the final symbol; you usually do not need to press the call button. Essential Codes for Galaxy A7 (2018) How to Use Secret Codes on SAMSUNG Galaxy A7 -2...
Before buying a used Galaxy A7, dial *#0*# to test the screen for dead pixels and the vibration motor. Some codes may be disabled by specific carriers
#0 # – The General Test Mode. This is the most important code. It opens a grid of buttons to test the LCD, touch responsiveness, speakers, cameras, and sensors. #0 # – The General Test Mode
In this guide, we’ll cover everything you need to know about using secret codes on your Samsung Galaxy A7.
| Code | Function | |------|----------| | *#0*# | – Check display, touch, sensors, camera, vibration, speaker, and buttons. | | *#06# | Show IMEI numbers – Useful for device registration or support. | | *#1234# | Firmware version – Displays current PDA, CSC, and modem versions. | | *#12580*369# | Software & hardware info – Shows RF cal date, manufacturing date, etc. | | *#0228# | Battery status – View voltage, temperature, and battery level. Useful to recalibrate battery stats. | | *#0011# | Service mode – Real-time network info (signal strength, band, LTE stats). | | *#0808# | USB settings – Change USB mode (MTP, ADB, PTP, etc.). | | *#2663# | Firmware update – Update TSP (touchscreen) or TSK firmware. | | *#34971539# | Camera firmware – Detailed camera sensor information. | | *#7353# | Quick test menu – Audio, vibration, LED, and sensor tests. | | *2767*3855# | Full factory reset – Wipes all user data (photos, accounts, settings). Use only as a last resort. |
The following codes are verified to work on the SAMSUNG Galaxy A7 (2018) : Samsung Secret Codes: Unlocking Hidden Hacks and Tips