In This Article
Samsung Galaxy hardware in 2026 still supports a handful of useful dialer codes that open diagnostic menus, hardware tests, and account info. Most of the old internet-famous codes (*#7780#, *#*#7780#*#*, hard resets) either no longer work on Android 14 and later or have been deliberately removed for security. The ones that still work are documented and safe.
We tested on Galaxy S24, S25, and a Tab S9 running One UI 7 in 2026. The codes below are the current useful set; we will also note which legacy codes are dead and which should never have been used in the first place.
TL;DR
The pick: *#0*# opens the hardware test menu (screen, sensors, vibration) on every modern Galaxy.
Runner-up: *#06# shows your IMEI; *#1234# shows the software build version.
Skip if: Skip the old factory-reset and EFS-related codes. They are blocked on current Android and the older ones could brick a phone if misused.
Hardware test menu: *#0*#
Open the phone dialer and enter *#0*#. The Galaxy hardware test menu opens with buttons for Red, Green, Blue, Vibration, Speaker, Receiver, Camera, Sensor, Touch, Sleep, Sub key, Front cam, S Pen (where applicable), Bluetooth, MegaCam.
Use it to verify the screen has no dead pixels, the speakers work in both channels, the cameras focus, and the proximity and light sensors respond. Very useful when buying a used Galaxy. Exit by tapping Back; nothing is changed by the test.
Account and device info codes
*#06# shows your IMEI and eSIM EID; useful for warranty, insurance, and unlocked-status checks. *#1234# shows the software build (AP, CP, CSC fields). *#9090# opens the diagnostic configuration menu (mostly read-only) and *#0228# shows battery status with raw voltage and capacity.
All four are read-only. None of them modify state. The diagnostic configuration menu has Settings inside that should not be changed unless you know exactly what you are doing.
Service mode (carrier-locked phones)
*#7465625*# (which spells SIMLOCK) shows network lock status on older Galaxy phones; on 2026 builds it shows a basic SIM info screen. The full service-mode codes that allowed band selection have been removed from consumer builds for the last two Android versions.
For network-band debugging in 2026 use Settings, Connections, Mobile networks, Network mode and the in-app carrier diagnostics. Trying to use legacy codes that no longer respond may put a notification in the system log but does not harm the device.
Codes you should not enter
*#7780#, *#*#7780#*#*, *2767*3855# (Samsung factory reset codes) are blocked on Android 14+ Galaxy. If they did anything they would wipe the phone with no warning. Modern Samsung firmware refuses to execute them.
Anything you find on a random forum that promises to unlock features, root the phone, or change the IMEI is almost certainly broken or fraudulent. Real IMEI changes are illegal in most jurisdictions.
Which code do you need?
- Test the screen and hardware: *#0*#. Full hardware test panel.
- Check IMEI: *#06#. IMEI and eSIM EID.
- Check software version: *#1234#. AP, CP, CSC build numbers.
- Check battery health: *#0228#. Voltage and raw capacity.
FAQ
Will *#0*# damage my phone?
No. It runs read-only tests. Exit by tapping Back.
Do these codes work on every Galaxy?
Most work on Galaxy S, A, and Tab models from 2019 onward. Older or low-end models may not have the test menu.
Will any code unlock a carrier-locked phone?
No. Network unlocks come from the carrier (free after 6-12 months on most carriers in the US, UK, EU).
Are the codes safe?
The ones listed here are safe and read-only. Anything else from a forum should be approached with caution.
Bottom line
Galaxy secret codes in 2026 are a small useful set: hardware test, IMEI, software version, battery info. The legacy factory-reset and SIM-related codes are mostly dead and the ones that still work are safe. Skip anything from random forums; the legitimate set is documented and short.
