How will lock my Phone - Samsung S3500i Cell Phone

This is copied directly from the manual - check out #5 at the bottom.
Hope it helps!

7.7 Security

The Security menu allows you to

secure the phone electronically.

1. Open the flip and press

[MENU]

2. Press Settings & Tools.

3. Press Phone Settings.

4. Press Security.

5. Enter the four-digit lock code.

The lock code is the last 4 digits

of your mobile phone number if

it is set. The lock code is the last

4 digits of your MEID if your
mobile phone number is not set.

hi
you could have mentioned how your phone is locked? whether its privacy locked or network locked. if your phone got locked to the security pin code you can try resetting your phone. else if your phone is network locked you can try unlocking it through codes. you can get the codes from Unlocking4U.com for either resetting or unlocking your phone.

1122 remove lok new lock forget plesehelp me

Micromax q75 phone lock ? : Solution: If you have not changed the default phone lock code for your micromax q75 phone. Then use "0000"(four zeros is the default code) and press the home button(top left most button and not the green sim 1 button). If you press the green button it will say " Emergency calls only" it means you are clicking wrong button. hope this helps you.

It depends if you kid set a phone lock code on the phone or whether it was merely set to ask for it. There are normally 2 default codes used. One is 0000 the other is 1234. If neither of these work you need to ask a phone techie. Have a look in your manual-it will tell you which it is. There are however 2 different phone locks-one locks the phone and the other is a sim lock. If your sim works in another phone then it is the phone lock. If it has locked the sim then your phone operator should be able to help you.

If it is a flip phone, most flip phones dont offer the ability to lock the keys because they are thinking there isn't a need for that since the keys are hidden by the top of the phone, if it is a candybar phone usually the menu key and the * (star) key are used to lock and unlock your phones, if its a smart phone there may be some options in the settings. You didnt mention what brand your phone is based on the model number sounds like a samsung. you can go to samsungs website and research the model number and usually they have information on how to do everything you need with the phone. most cell phone carriers have this info too, you may have to dig threw the website a little though

Sir,

You can lock your phone manually or set the phone to
lock automatically whenever you turn it off.
To use a locked phone, you must enter the unlock
code. A locked phone still rings or vibrates for incoming
calls or messages, but you must unlock it to answer.
You can make emergency calls on your phone even when
it is locked (see page 68).
Locking Your Phone Manually

Find the Feature > Settings > Security
> Phone Lock > Lock Now


Unlocking Your Phone
Tip: Your phone’s unlock code is originally set to 1234.
Your service provider may reset the unlock code to the last
4 digits of your phone number.


Setting Your Phone to Lock Automatically
You can set your phone to lock every time you turn it
off:

Find the Feature M> Settings > Security
> Phone Lock
> Automatic Lock > On

If You Forget a Code, PIN, or
Password
Note: Your phone’s 4-digit unlock code is originally set to
1234, and the 6-digit security code is originally set to
000000. Your service provider may reset the unlock code
to the last 4 digits of your phone number before you
receive your phone.
Press To
1 keypad keys enter your unlock code
2 OK (+) unlock your phone
Find the Feature > Settings > Security
> Phone Lock


Master
Clear
Clear all user settings and entries
except SIM card information, erase all
downloaded pictures and sound files,
reset all options except unlock code,
security code, and lifetime timer:
M > Settings > Initial Setup
> Master Clear
Caution: Master clear erases all
user-entered information (including
phonebook and datebook entries) and
user-downloaded content (including
photos and sounds) stored in your
phone’s memory. After you erase the
information, you cannot recover it.


Thanks
Good Luck

Don't forget to rate the solution

ok, so all the locks are off on the phone.
The imei code is valid no one has changed it.

Its possible that the phone has been reported stolen?

My phone is giving message Phone locked! Please Contact service center!)