My phone then read on >>>>>>

This device use a Samsung Proprietary Operating System.
2G Network. GSM 850 / 900 / 1800 / 1900.

push Contacts -> create new

go to settings => lock screen => click on the 'shortcuts' or lock screen widget shortcut (forgot the name). There you can change or remove it

calll the service provider of your sim from other number
be ready wid your detail like sim no,name ,last recharge etc......
they will provide puk to unlock

To install the flash tool, follow the steps below:

1. Download the Tools
   
2. Unzip the file you downloaded and place it somewhere on your computer.
3. In the unzipped folder, run Emma.exe. During the installation, make sure you remember the installation path:
   1. Default path in Windows 64 bit is: "C:\Program Files (x86)\Sony Mobile\Emma\"
   2. Default path in Windows 32 bit is: "C:\Program Files\Sony Mobile\Emma\"
4. Copy the Customization.ini file. You find it in the <Emma zip filename>.
5. Paste the Customization.ini file into the installation folder. The installation folder is the folder named Emma in the installation path examples on point 3.1 and 3.2 above.
6. Click Start > All programs > Sony Mobile > Emma (if you used the default installation path from step 3 above) to start the flash tool

You can visit my blog with video Tutor lol
http://pcgadgetdeni.blogspot.com/2013/02/flash-tool-for-xperia-devices.html

here:
www.google.com
PLEASE ANYBODY WHO READ THIS IF YOU NEED USER'S MANUAL TYPE THIS INTO GOOGLE: (your phone's name) user's manual download and bammm there you go...just to show you i'm not an ******* at all here's yours:

http://www.userguidemanual.com/samsung-monte-gt-s5620-user-manual-guide/

Dear sir, please go to these url www.waptrick.com www.getjar.com www.yesjar.com,www.krazywap.com,www.twilightwap.com from your phone and download your desired games and apps for your phone
sir, one more thing you have not written that you have any problem related to internet browsing, so if you have plz write it....
bye

Please get it here : www.brothersoft.com > Windows > Internet > Mobile
www.software112.com/.../free+download+samsung+pc+suite.html
www.downloads.nl/popular/software/1/Samsung+Pc+Suite

Jaya g

please call your phone company and speak to a level 2 technician.

you need to download samsung kies software.. and install it. then automatically the required drivers will also be installed.. then follow the instructions as below..
NOTE: following instructions are for tata docomo internet. names may vary depending on your mobile network.

you just connect with bluetooth or data cable and find out the modem then u goto control panel ->phone and modem option then dialing rules tab ->new -> country/religion fill India and area codeand then ok. and then goto same dialog box in modem tab n select modem click ->properties and then advance tab n fill in extra initialization commands: AT+CGDCONT=1,"IP","TATA.DOCOMO.INTERNET" and then ok.
goto control panel ->network connection ->create a new connection ->new connection wizard next ->choose connect to the internet ->next ->choose setup connection manually ->choose connect using to dial-up modem ->next ->isp name -tata ->next ->phone number- *99# ->next ->next ->finish
then you a dialing tata icon in the desktop and you r connect internet in your pc