If you are using the charger that came with your phone you can find your USB cable stuck to the charger. Before you start there is a few things you should be aware of.
Like the fact that updating your phone could in some cases cause data loss.
Important: Before you begin, follow the steps above to determine the current software version on your device, since you may already have the latest version.
Do not manually download and install a software update not intended for your device.
If for some reason you can’t or won’t update your galaxy s4 OTA ( over the air ) i’m going to show you another way of doing it.
For this method of updating your Galaxy s4 you are going to need a computer, a Galaxy s4 and a UBS to micro UBS cable like the one supplied in the box that your phone came in.
User Registration Form .lia-form-tos-links-entry, . User Registration Form .lia-form-profile-interests-entry, . User Registration Form .lia-form-profile-employee-id-entry @media (min-width: 992px) body .lia-panel-dialog . Sometimes an update simply won’t be made available through OTA and as such needs to be done using this way.One reason I have heard cell phone manufacturers use is that some updates are simply to big for updating any other way.They are asking for a version of i OS that they would load directly into RAM and run from RAM without making any modifications to either the OS partition or the user partition. Having looked through Apple's documentation, I have found conflicting information.Update: I have discussed this with someone who has specifically tried this. First, the i OS Security Guide describes going into Device Firmware Upgrade (DFU) mode and Recovery mode.The Link from the i OS security guide puts you on this Apple support page.