I have seen an article on How To Install Android 2.2 Froyo On ZTE Blade / Orange San Francisco to install froyo 2.2 however I am asking anyone is there a possibilty to update zte racer to 2.2 as I dont want to go ahead to install the OS as I fear currupting the OS 2.1 , anyway have a look on this site it has all the files you need to update the phone to froyo 2.2 if any wants to have a go there are free to do so let me know how you get on with installing this on zte racer.