Samsung Galaxy S2

So that finally happened. I got new Samsung Galaxy S II.

The Galaxy feels not complete without a good case.

The best case so far is Case-Mate Tough that I got from MyLaptop.co.il home held store in Ra'anana for 189 NIS with free Momax screen protector PSPCSAI9100 (made in Japan) that by itself worth 40 NIS.

Now, some useful information.
Must Know Tips & Tricks For The Galaxy S II
Samsung Galaxy s2 i9100 Test before buying with service menu and USB OTG test (rus)
XDA Developers: Improving battery life
Battery University

Service menu codes
*#06# - IMEI number
*#0*# - testing
*#*#4636#*#* - phone info
*#44336# - software version
*#34971539# - CameraFirmware Standard
*#301279# - How to disable HSPA / HSDPA for better battery life

More codes from http://mobilecon.info/samsung-secret-code.html
Code
phone information : *#*#4636#*#*
hard reset* : *2767*3855#
factory reset** : *#*#7780#*#*
change end call/power option : *#*#7594#*#*
service mode : *#*#197328640#*#*
file copy screen (backup media files) : *#*#273283*255*663282*#*#*
wlan test : *#*#526#*#*
shows wifi mac address : *#*#232338#*#*
gps test : *#*#1472365#*#*
another gps test : *#*#1575#*#*
bluetooth test : *#*#232331#*#*
shows bluetooth device address : *#*#232337#*#
gtalk service monitor : *#*#8255#*#*

codes to launch various factory tests:
packet loopback : *#*#0283#*#*
lcd test : *#*#0*#*#*
melody test : *#*#0673#*#*
device test (vibration test and backlight test) : *#*#0842#*#*
touch screen version -warning!!- : *#*#2663#*#*
touch screen test : *#*#2664#*#*
proximity sensor test : *#*#0588#*#*
ram version : *#*#3264#*#*


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

Nb:
hard reset will erase all file and setting in memory, it`s like reformat the firmware. Once you press it, there is no turning back.
factory reset only delete the account, system and setting application.
And be careful with *#*#2663#*#* (touch screen version), don`t upgrade the version it`s same like do a hard reset