Hi there and thanks for visiting the community.
4G is now scheduled to start real soon and its a very exciting time for both giffgaff,and anybody who wishes to use the 4G service when it arrives,and you can take a look at this link,which gives you all the up to date information,thanks 😉 .http://community.giffgaff.com/t5/Blog/4G-Launch-update/ba-p/12120896
If you would like to upgrade your current giffgaff sim card for a 4G sim card,firstly can you just check the back of your current giffgaff sim card,it will either say 3G or 4G.If it says 3G and you wish to change your sim card for a 4G sim card.All new giffgaff sim cards are now 4G ready 😉 and you will need to perform a sim swap. When you perform a sim swap,ALL credit and any remaining goodybag allowance,along with your phone number is transfered to your NEW giffgaff sim card,easy 😉 .Do you have a spare,un-activated giffgaff sim card ? ,if not,dont worry. Simply order a NEW giffgaff sim card,by clicking onto either your,spread giffgaff,or click onto the link below,and select the correct sim card that you want.http://giffgaff.com/spread
Then simply perform,a sim swap.Please take a look at a great guide,by clicking onto the link below.http://community.giffgaff.com/t5/Using-giffgaff/What-is-SIM-Swap/ta-p/7320084
Please remember,you can only perform a SIM swap between 4.30am and 9.30pm.
Please also check out this link http://community.giffgaff.com/t5/Using-giffgaff/How-to-buy-a-4G-goodybag/ta-p/12212828#faq_no_1