You can also get two free T-Mobile SIM cards, with a free weekend texts offer.More details at uk PUK stands for 'Pin Unlock Code', and has to be entered if you've locked your SIM by repeatedly entering the wrong PIN code.The phone stores a unique number called a Subscriber Identity number (IMSI).Provided that you're able to connect your phone to a PC, you may be able to use PC software such as Oxygen to extract the IMSI from the SIM.Don't leave it in the back of a drawer - see if it can find a new lease of life, and pocket you some cash.
More details on our Mobile Phone Signal Boosters page or at uk/suresignal An incredibly useful service is slowly becoming available.
We reviewed this in Show 32 of our UK Tech podcast. There's also the powerful Power Monkey for extra portable power.
If you're unlucky enough to live in a poor mobile phone signal strength area, you'll be happy to know that there could be an easy and cheap solution.
This is likely to be because the handset is "locked" to a particular network.
This is something done by network operators to ensure that their handsets aren't sold on, or used on other networks, until the user's contract ends.