I recover this guide just before the departure of the iOS4, remember is very important that you will keep the SHSHs on your device. ** If you plan to jailbreak your iPhone/iPod/iPad in the near future, either using Spirit or the tool you draw, it is very important that you save the SHSHs on your device. To do this we first need to know the ECID. Part 1 ECID therefore, first of all, we need our ECID file, to know which is our number 16 digits ECID: on Mac:-put the iPhone into Recovery Mode. (for them you can simply turn off the iPhone, press the home button and without releasing it connect iPhone to USB) go to Apple about this Mac plus information. We go to USB and will see a line where references of the iPhone in Mode Recovery and there aim the ECID of 16 digits phone number to generate the certificate of each firmware.
On windows:-US Download ECID Grabber. Now put your iPhone in Recovery Mode.(to them simply turn off the iPhone, press the button (home and without releasing it connect iPhone to USB) once we get iTunes cable on screen, we place on Get ECID. Also saves us a copy of the certificate, just in case. Part 2 SHSHs downloaded The Firmware Umbrella and we opened it. 1 We get the ECID of our device. 2. We choose our device. 3 Choose as SHSHs Saurik-Cydia repository and voila, we have our saved SHSHs. Fountain miNexusblog.com original author and source of the article