I forgot the security code of my lg t585

SOURCE: forgot the security code

hi if the phone is asking for the security code as soon as you switch it on then i can give you the master code that resets the code to what it was when new usually 12345 the code only works if its asking for security code when you switch phone on.
Also the code is only accepted if the code hasnt been entered wrong more than 5 times if it has been entered wrong more than 5 times then the code wont work the code is in my next post ok let me know if you need further assistance ok

SOURCE: Resetting Security Code

SIM pin code:
This is a pin code that locks the sim card until you enter the correct code. This protects your account, even
if your sim is put into another handset. To reset it, you need the PUK code:
Pin Unlock Code (PUK)
If you miss key (or forget) your SIM pin code, and enter the wrong one 3-5 times in a row, the SIM will lock up, and you’ll need to enter the PUK unlock code to release it. You should ask your Network Service Provider for this code when you need it. Don’t try to guess it, because after a few wrong guesses, the SIM card will be permanently disabled.
Phone Security Code:
This locks the handset, as opposed to the sim card. You can also set some handsets to only accept a “new” sim if the phone security code is entered. To reset it, you need the Master code code:
Master Reset Code
Sometimes known as the Master Code, this allows you to unlock a handset if you have entered the Security Code wrongly too many times.
Which is the one that you want?
The default security code for Nokia is 12345

SOURCE: Resetting Security Code

for resetting code you need ufs box

SOURCE: forgot the security code

i forgot my security code

SOURCE: i have forgot nokia 1110 security code

12345 if you havent altered it