I had only upgraded to 4.2.1 some time ago, and never upgraded to the latest and greatest (4.3.2). Now I want to JB, but I gathered that in order to keep 4.2.1 I needed to have the SHSH blob for that iOS. So I tried to save SHSH in Tuny Umbrella. It managed to save a SHSH file named iPad 4.3.2 (8H7). However, when I go to the Log tab, there are a number of errors, saying I'm too late. Is it really that I'm too late, and I must upgrade to 4.3.2 in order to get the right SHSH blob? I know I could probably JB without the SHSH for 4.2.1, but I wouldn't be able to go back if I wanted to... Any advice? Thanks.