Updates can sometimes cause us to lose performance for many reasons, both at the battery level and for example in the face of optimizing applications that we consider essential. Because Downgrade is often the only way we have to make our device last.
Both the iPhone and iPad can be downloaded to an older version of iOS, with a but, only as long as Apple continues signing the previous version of iOS. So we are going to show you how you can download the iOS version from iOS 11.2 to 11.1.2 without losing data.
When we have updated it may seem that there is no going back, especially if you have not been sufficiently alert to make a backup of your iPhone or iPad before updating. Therefore, first remember this vital data for next time and you can save these steps. But when the damage is done we can still repair it. The first thing we are going to do is go to pages like www.ipsw.me to download the latest signed version of iOS (The signed ones will be green, the red ones will not work for us). Now we can get to work with "hard" work.
Now we connect the iPhone or iPad to the PC / Mac. Once connected we simply open iTunes, the unpopular tool will get us out of this trouble. When you have detected our iOS device We are going to press the “Shift” key while clicking on “Update device”.
As the file browser opens, we will select the .ipsw downloaded with iOS 11.1.2 and we will select it. Now you will follow the same procedure as when we restore / update but we will not lose any data. However, this system sometimes fails, so if the phone crashes or has anomalies we recommend simply connecting it in DFU mode to proceed with a clean installation of iOS, did you remember to make a backup? Hope so.
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