How do I unlock
Turn your Samsung device on after inserting the SIM card Type *2767*688# and press Exit.
The *#9900# code is a diagnostic mode code for Samsung mobile devices. It can be used to access a variety of system information and diagnostic tools, such as enabling/disabling fast dormancy, logging options, and system dump mode.
2. *#*#7780#*#* (Run a Factory Reset) If you don't want to run a hard reset, this is the next best thing. Similar to a factory reset, this code will simply delete all application data from your device, as well as any applications.
*#*#4636#*#* Displays information about the phone, battery, and various network statistics.
General Test Mode: *#0*# Display your IMEI: *#06# Check Your Call Forwarding: *#67# Get Even More Info on Call Forwarding: *#61# Check Your Available Minutes: *646#
What does *#0*# do on Samsung? *#0*# is a general test code used to test all the different functions of the Samsung phone. It is also known as Engineering mode as it is widely used by technicians and Engineers to find and troubleshoot problems. You can also try #*#0*#*#* USSD code to test your smartphone display.
#0# is a Samsung secret code that activates a diagnostic menu on some Samsung Android phones. When you enter this code in the phone's dialer and press the call button, it will launch a menu that allows you to test various features of the phone's hardware and software.
How to unlock your Samsung phone through your carrier. Once your phone is considered eligible, you can unlock it by getting in touch with your carrier to request an unlock code. Just make sure you have all the important information handy before talking to your carrier so the process is smoother.
Device Unlock lets you use your device with another carrier, for things like international travel or selling your device. Not all devices are compatible with every wireless provider; your device will need to support their network frequencies and technologies.
Samsung phones, unlike their Google counterparts, don't have the Quick Tap-like feature baked into the One UI software. However, Samsung compensates for it through a module that provides similar functionality. It's called RegiStar, and it's available to use for free via Samsung's incredibly useful Good Lock app.
Android Factory Reset Code for Samsung. The Android factory reset code for Samsung devices is *#*#7780#*#*. There is also a custom reboot code for Samsung devices which you should use in case the other code doesn't work. That code is *2767*2878#.
Dialing this code will erase all call divert options on your SIM card. Enter the code: ##002#.
Secret codes can be viewed as a symbology, except that now different symbols encode letters instead of numbers. These symbols can be signs (like Morse code or Braille which are just encodings and not 'secret'), or they can be other letters, or even the same letters themselves.
according to the developer.android.com , 0 or MODE_PRIVATE is the default mode, where the created file can only be accessed by the calling application (or all applications sharing the same user ID). Follow this answer to receive notifications.
What does dialing *#21# actually do? When you dial *#21#, you are, in fact, activating a feature access code that quickly tells you the status of call forwarding for your phone. It's a quick way of seeing what, in the case of this particular 'setting interrogation code,' your call forwarding settings.
Battery status (ADC, RSSI reading) *#0011# Service Menu.