How to unlock my iphone 4 so that i can use it outside the country?

I want to be able to use my iphone outside the country. The actual unlocked iphone 4 is very expensive, is it possible for me to unlock it completely so that i can use it anywhere?

Just go to your local phone store (non carrier type) and they should be able tro unlock It for you.

You can unlock any iPhone till now but for that you have to Jailbreak it and after doing this Apple will not support it in future, so we suggest you to go for a factory unlocked iPhone or choose Android if price matters you.
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You can unlock it by a gevey sim if its baseband 4.10 or lower otherwise you have to factory unlock for baseband 4.11 or higher.

It's simple to Unlock i-phone 4 from service provider lock… You can use Remote Unlock service to Unlock it… Visit the site http://www.wickedunlock.com/apple-iphone-4/rs11wp9/ get the remote unlock service at reasonable cost and unlock it easily… Then use with any GSM Network sim card… You need to specify the network, country it locked now and get the remote unlock service and unlock it easily.