MY SAMSUNG PHONE IS LOCKED TO O2 NETWORK AND I WOULD LIKE TO PUT AN ORANGE SIM CARD IN, CAN YOU GIVE THE UNLOCK CODE PLEAS

You need to unlock the network lock of the Samsung sgh-e250 to use it with other network Sim card. You can use unlock code to unlock the network lock. You can get the unlock code from Mobile-Unlocker.com . There you have to give your Country and current network name along with your IMEI number to get the unlock code. They will give you the unlock code along with instruction on how to unlock. Follow the instruction correctly and unlock your Samsung sgh-e250 .

Hello, You need unlock code to use it with O2. If your device is now out of contact you can Orange for the unlock code or else you need a third party unlocking website to provide the unlock code. The unlock code unlocking is permanent so you can use any SIM card in future.
Follow the link to unlock Samsung Device!

Call Orange customer support and ask for an unlock code, if you've had your phone for a while they should give it to you.

1.insert this code *7465625*28782# without sim card.
2.the phone will show you message of protected activated,click o.k.
3.again insert the same code without sim card.
4.now put in your sim card.
5.when you put in different sim card(network),phone will ask for code,insert all the 0's phone will work on any network

Hope this works for u

I have just tried it with my new locked to orange g600 and it works fine on all networks.

1-Turn on the phone without sim card .
2-Pull off the battery cover and insert any non-accepted sim card (without turning off the handset)
3-Do full reset *2767*3855# , phone will reboot and goes to Menu .
4-Customize Sp-lock code *7465625*638*00000000*00000000#
5-Unlock your phone with new SP code #7465625*638*00000000#
6-Enjoy G600 unlocked
if it doesn't work after step 3.. try changing the 'non-accepted' sim card that ur putting in..
eg if you are locked to vodafone and you try this method and use an orange sim card and it doesn't work, try using a o2 sim or even virgin :)
its easy good luck

i have a samsung G600 and it is from uk and when i out an indian sim it asks for network lock

you could try this

By doing the reset (1st temp) you will lose all your
data ie contacts, messages, photos, videos etc etc so
back them up on your pc first.
Take out your sim card and follow the instructions below :
1st temp. put this number in the keypad
*2767*3855# let it reboot(restart)
now its ready for permanent.
Put in a sim card of a network that the phone won't
except and follow the instructions below.
( If you can't type anything with a locked sim
card inserted just take it out and do the next
step without a sim card in the phone)
Don't worry if your screen shows - - - - - - - when typing
it is supposed to do this.
Permanent.
ENTER :
*7465625*638*00000000*0000000
0#
NEXT ENTER
#7465625*638*00000000#
AND THEN *#7465625# to check the locks....all locks are
inactive...these are all the locks...
network lock - inactive
subset lock - inactive
sp lock - inactive
cp lock - inactive
sim lock - inactive
activa lock - inactive
phone lock - inactive
auto network - inactive
auto subset lock - inactive
auto sp lock - inactive
auto cp lock - inactive
auto sim lock - inactive
Enjoy !
This procedure does not change your imei number at all

IMEI has reported to barred,so contact Service provider to unlock the Code.