Most important Samsung code 4) *2767*3855#.
Factory reset is very useful for fixing many software related problem. And unlocking mobile phone especially when you have lost your screen pattern passcode. This will unlock mobile phone but it will delete all data on android devices. If your smartphone is carrier network locked then here is how to sim network unlock Samsung galaxy.
This code is most common for factory reset.*2767*3855#. But most of the latest Samsung mobiles use *2767*2878# code for factory restore. You can also perform factory restore Samsung using hard keys. Press and hold power, home and volume up key simultaneously. This will work with all latest Samsung mobile. This includes t-mobile at&t, Verizon and Vodafone cellphones.
Secret code number 5) *or #8736364#
Over the air update or ota update is the best option for software update. Most of the mobile brand provides ota update. But if your mobile don’t prompt for update then use this code *or #8736364#.
May time you bought galaxy cellphone from someone. And when you call to sim carrier customer care they ask you, whether mobile is locked or unlocked. You are not sure about network lock status of mobile. Here is the code to find it. Use *#0011# code. Actually this code will take you to service mode. Within which there are network related information available. There it is written network- unblock, imei certi- pass. Imei number is very useful for mobile tracking and generating smartphone sim network unlock code.
Here is one tip to unlock hidden feature. You can watch Samsung TV on android mobile. Download Samsung smart thing app on your galaxy smartphone. Now open app on mobile. Tap on add device. Turn on Wi-Fi. Now you will see Samsung TV tap on it on next screen tap on 3 dots at right top corner. Now tap on view tv on phone.