Changed network and sim card and now battery drains in one day

You need to use other GSM Network sim card in your SAMSUNG SGH R220(R220) model phone?
It's locked to network,You need to unlock it from sim lock(network lock)Get the unlock code from the site
Simpleunlocking.com/samsung-r220/rs16wp9/ and unlock it from network lock easily..Then use other Country GSM Network Sim card.

at the back of your phone is the battery compartment where the sim card is located too.. open the battery compartment and remove the battery,then you will see the sim card..now you can remove it,but different phones have different way on taking it out,some holders pop up and some are you just slide the sim card out.. hope this info has helped you in anyway,,..have a nice day..

You can Unlock SAMSUNG SGH F480 model Phone to use other GSM Network Sim cards.Get the Unlock code from here Mobile-unlocker.com/samsung-sgh-f480/rs2wp9/ and Unlock it simply.

It locked to some Network!!So you need to UNLOCK it from the Network lock,find out in which country Network it locked now? get the Network Unlock code for the samsung SGH -I607 Blackjack Model Phone from here Theunlockarena and Unlock it from Network Lock,Then use any GSM Network Sim...

it may be due to network lock, contact service provider if it locked , you can get unlock codes here http://www.superunlockcodes.com/
you need to specify the country and network provider

i have this prolem too. i use a condemn battery, when the battery is full, network ok but when the battery started to less and little, limited service... i think you should replace the battery..

When you place a new or a existing SIM card from another phone provider into your mobile phone and it asks for a Security code then :-
This phone is locked to the original mobile phone provider. You need to contact this mobile provider to ask for the unlock code (security code) for this phone. You need to provide proof of ownership etc and the phone's unique IMEI number which is located inside the phone under the battery. They use this number to generate the unlock code for your phone.
They should provide you with instructions on how to enter this code into the phone.
Once you unlock the phone, then you can insert a new SIM card in this phone or sign up with another phone provider using this phone.
You could ring the phone provider and ask for the unlock security code because you are going overseas and wish to use your phone with a prepaid SIM card from another country. This maybe a free service.
The other way to get your phone unlock is to use a phone unlocking company on the Internet, they usually charge a couple of Dollars for their services. Use Google and search for "Security unlocking code” companies in your area.
You can also try this WEB site :-
http://www.mobileunlockguide.com/mobile-phone/
The IMEI number is unique the each mobile phone.
The number is printed on the label under the battery.
You can also get the IMEI number by entering this on your phone
*#06# It will then display your IMEI number and you may also get a unique global serial number. Your IMEI number should be 15 digits.

Hello Sir, It sounds to me that you have a Sim Lock issue or Network Lock issue. In this case the unlock code can be only retrieved from your network provider which is T-mobile. Kindly contact them, they will give you the unlock code.
Thank you Sir, Have a nice day.

PERMANENT UNLOCK CODE SAMSUNG SGH A117, T429, T729

Insert ANY unaccepted SIM card in the phone and then turn the phone on, follow the steps in 1 to 4 below to enter all the codes. The phone will states "Wrong card" at the end of step 2 and "network lock deactivated" at the end of step 4 if you do everything right so pls take your time to enter the code or follow the instruction correctly at each step. When entering some of the zeros at steps 3 and 4 your phone may display the zero as hyphen or minus (-), dont worry, just count when entering the zero to ensure you enter just the right numbers of zeros. Now let's begin... 1/ Put any unaccepted SIM card in your SAMSUNG SGH Phone, turn the phone on, it will display "WRONG CARD"

2/ At the wrong card screen, type *7465625*638*00000000*00000000#

3/ Now remove the battery with the SIM card, Put the battery back and turn the phone on again without the SIM card, it will display "Insert SIM card" 4/ At the insert SIM card screen/end of step 3 above type #7465625*638*00000000#

At the end of step 4 phone will show "network lock deactivated" 5/ Now Reinsert your unaccepted card or any other unaccepted SIM card in the phone and enjoy your unlocked phone!

PERMANENT UNLOCK CODE SAMSUNG SGH A117, T429, T729

Insert ANY unaccepted SIM card in the phone and then turn the phone on, follow the steps in 1 to 4 below to enter all the codes. The phone will states "Wrong card" at the end of step 2 and "network lock deactivated" at the end of step 4 if you do everything right so pls take your time to enter the code or follow the instruction correctly at each step. When entering some of the zeros at steps 3 and 4 your phone may display the zero as hyphen or minus (-), dont worry, just count when entering the zero to ensure you enter just the right numbers of zeros. Now let's begin... 1/ Put any unaccepted SIM card in your SAMSUNG SGH Phone, turn the phone on, it will display "WRONG CARD"

2/ At the wrong card screen, type *7465625*638*00000000*00000000#

3/ Now remove the battery with the SIM card, Put the battery back and turn the phone on again without the SIM card, it will display "Insert SIM card" 4/ At the insert SIM card screen/end of step 3 above type #7465625*638*00000000#

At the end of step 4 phone will show "network lock deactivated" 5/ Now Reinsert your unaccepted card or any other unaccepted SIM card in the phone and enjoy your unlocked phone!