So, here it is, the list of phones we can and cannot do, whether we can do them online or not...

Unfortunately, some phones just can't be unlocked yet and certain phones can only be unlocked on certain networks.

If your phone is not listed, and you wish to obtain further information about unlocking your phone, please feel free to e-mail us.

Online/Offline
We at the NUC are trying to find methods to unlock all phones online for your convieniance. However, this is not always possible. While we continue to search and update this page, it will never be the case that all phones can be unlocked by yourself with our guidance.
Another problem with online unlocking, particularly with Nokias. You do only get 3 attempts at entering the correct code, if you fail to do so three times, that phone then puts itself into a further state of lock. Unfortunately, this means that the phone can no longer be unlocked online and must be sent to us to unlock manually.
For more details about offline unlocking, please click here.

Band?
No, we're not talking about any rock bands here, the band refers to the number of networks the phone can be unlocked to. The networks operate on certain "bands", which band(s) a mobile can recieve is down to it's physical hardware, which means there's no changing bands if you don't like the one you're on.

For example:
The UK and most of the rest of the world works on two GSM bands, 900 and 1800, which cover the major networks.

Several countries use a third band, which operates on the 1900 frequency.

Duel band phones usually can operate on 900 and 1800, which will cover most of the world. Tri band phones, however, can work in every country.

There are also now available Quad band phones, the forth band is not commonly used, but can be useful for getting signal in areas it is usually difficult to.

Please note: We cannot garentee the functionality of a phone on any given network, but (provided there are no faults with the phone, it works on the relevant band and that it's not blocked) assure phone calls and standard text messages will work at the very least.

The 3G networks
Most phones cannot work on strictly 3G networks, and this is something that cannot be changed. If you want to use a 3G network, you'll need to buy a 3G phone.
However, 3G phones, once unlocked, can work on the 2G networks, but you will loose 3G funcationality (video streaming, video calls, etc).

Common mistakes
The most common mistake we find, is the confusion between blocking and locking. So, we'll clear them up here:

Locked: A phone that has been locked has been restricted to a single network. Network operators do this to stop their customers spending their money on other networks.

Blocked: A phone that has been blocked has probably been reported missing, stolen or there has been a contractal dispute between the customer and the network. Insurance claims also end up with the phone being blocked. A blocked phone cannot be unblocked, however it may still be unlocked. If the blocked phone is unlocked, it will accept the SIM inserted, however, once the network find the SIM is being used in a blocked phone, they will not allow you to make/recieve calls or messages of any kind.
Which phones are blocked and not are decided by the network, so long as they have reasonable grounds for blocking the phone.