I think you can do that. But instead of that unlocking method let me suggest you a proper permanent unlock service. I suggest you can approach Theunlockarena.com and specify the country,locked network of iPhone 4.Based on the availability you can get the permanent unlock service along with...
No, unlocking does provide the user only to swap networks. I know this, because just now I have unlocked my phone using the permanent remote unlock service from Mobileunlocksolutions.com
Yes, if the phone is unlocked properly then you can swap any GSM networks. I suffered with a locked phone, luckily got a permanent unlock from Classicunlocking.com after which I was able to swap networks.
You should have had a temporary unlock, hence when you upgraded the OS it reversed the unlock status. Just by downgrading your phone will not get unlocked again. You need to unlock it using the permanent unlock service from Mobileunlocksolutions.com and then you need not worry about the...
I suggest you can approach Mobileunlocksolutions.com and specify the country,locked network of LG Chocolate .Based on the availability you can get the permanent unlock service and for free unlock instructions visit Mobileunlockguide.com
Yes, you can do it...but I think Tesco would soon be able to find it and charge you for the phone. If you still want to go ahead..I suggest you can approach Unlocking4u.com and specify the country,locked network of LG Viewty.Based on the availability you can get the permanent unlock service...
No, it will not be a problem. I did the same and did not face any difficulty. I unlocked mine using the permanent remote unlock service from unBBlock.com and was able to remove the network lock. After which I was able to swap networks in my iPhone 3G.
I suggest you can approach Simpleunlocking.com and specify the country,locked network of iPhone 3G.Based on the availability you can get the permanent unlock service along with free instructions.
The iPhone works only with GSM networks. It does not accept CDMA network. If you want to unlock your phone, you can approach your network provider or third party unlocker, unBBlock.com and remove the network lock permanently.