Secret Code Samsung Galaxy Mini GT S5570

Here's the code secret code Samsung Galaxy Mini GT - S5570

* # * # 4636 # * # * phone information
* 2767 * 3855 # hard reset *
* # * # 7780 # * # * factory reset **
* # * # 7594 # * # * change end call / power option
* # * # 197328640 # * # * service mode
* # * # 255 * 273 283 * 663 282 * # * # * file copy screen (backup media files)
* # * # 526 # * # * wlan test
* # * # 232338 # * # * shows wifi mac address
* # * # 1472365 # * # * gps test
* # * # 1575 # * # * another gps test
* # * # 232331 # * # * bluetooth test
* # * # 232337 # * # shows bluetooth device address
* # * # 8255 # * # * gtalk service monitor

Codes to launch various factory tests:
* # * # 0283 # * # * packet loopback
* # * # 0 * # * # * lcd test

* # * # 0673 # * # * melody test
* # * # 0842 # * # * device test (vibration test and backlight test)
* # * # 2663 # * # * touch screen version <- HAZARD
* # * # 2664 # * # * touch screen test
* # * # 0588 # * # * proximity sensor test
* # * # 3264 # * # * ram version

Codes to get firmware version information:
* # * # 4986 * 2650468 # * # * pda, phone, h / w, rfcalldate
* # * # 1234 # * # * pda and phone
* # * # 1111 # * # * FTA sw version
* # * # 2222 # * # * FTA hw version
* # * # 44336 # * # * pda, phone, csc, build time, changelist number

Note:
1
Hard reset deletes all files and settings in internal memory,
or equal to reformat the firmware
WARNING!
If it's direct push hardreset, there's no cancel option

2
Factory reset just delete the account,
system and application settings and can also be done with
enter the menu settings - privacy - factory reset the data