Every i Phone user would be happy to upgrade his or her device to a better and latest i OS.
They will associate it with better performance and many other good features. You will be able to view the progress at the top of this app.
Read the tips below for Upgrading your existing jailbroken i Phone with Cydia installed to new i OS 9 – i OS 9.1 firmware .
Here, select might update your device, but you will lose some disk space because of the file system changes made by Cydia.
However, if you are an advanced user and are using i OS 8 with jailbreak access, the i OS 9 update won’t be available to you.
The update option will open up in i OS settings, but will always see a screen that would be searching for updates, but the new version of the OS will never show up for you to download.
Before updating to the new i OS firmware, it is a good habit to completely backup your i OS device.
This is just to make sure that in case something goes wrong during the update and your data gets wiped, you can restore it from the backup. As mentioned earlier, if you are not able to download i OS 9 via the OTA update, then you can update to i OS 9 officially using i Tunes.