I have samsung m120 - Samsung SGH-L700 Cell Phone

netw0rk problam

If your phone displays the 'Insert correct simcard' then your phone is currently locked to particular network. You need to unlock to use it with other network.
There can be many ways to Unlock your phone. As far as i know unlocking by codes is the simple and safe way. I will suggest the website Unlock-zone.com which is doing good service and they were recommended highly in the cell phone forums.
I used them to unlock my cell phone. contacted them and within 30 mins i had my unlock code and my phone was unlocked.
Hope this helps.

try here direct link ,you can get unlock codes http://www.theunlockarena.com/samsung-m120/rs13wp9/

download this pc suite

click here to download

How can I put mp3 songs to my SGH-M120 still there is lot of issue my system is not able to find the deicvce pls do post me the solution ...

If you have forgot your password, then flashing the ROM memory of your mobile in a mobile service center is the only way. Before that try with the default password of your phone. Refer your phone manual for it. Try 0000/00000/12345/1234/1111/11111 (any one of this may be default)

http://www.fixya.com/support/t4009363-send_songs_in_sgh_m120_from_computer

please click the link above and follow the instructions i've given to the similar problem..

mp3 files, amr sound files, jpeg files, small bytes gif files were compatible on this phone for pc transfer and vice versa, but not any video files were supported for this phone.

edi ikabit mo

http://www.fixya.com/support/t4009363-send_songs_in_sgh_m120_from_computer

please refer on the link above and read the soultion given for the similar problem.

www.cell-phone-accessories.com or http://in.samsungmobile.com/mobile/SGH-M120/spec
use any one of the link to download the software