How can I upgrade the OS of my Samsung Galaxy Exhibit from Android 4.1 to 4.4 or higher?
13893
How do I update Android on my device?
8880
Can I install a ROM made for a different device?
48939
How do I install an older version of an app on an iPhone?
154081
Is Ubuntu for Android by Canonical available to the average user yet?
7464
Will the Android M developer preview get an OTA update to the stable release version?
124343
How can I install vanilla Android on the Kindle Fire?
101714
Is there any way to roll back the most recent upgrade?
114387
How do I upgrade an iPhone 4 from iOS 7.1.2 to iOS 8 or 9
117568
How can I check the system version of Android?
114492
How can I upgrade from Mac OS X Tiger 10.4?
49889
Will there be data loss if I upgrade?
150473
Will I get OTA updates after installing Android L Developer preview?
63176
How can I update to Ubuntu 21.04?
117029
Can the previous version overwrite the currently installed app?
120436
Point Release upgrade from 14.04.1 to 14.04.2?
10709
Can i upgrade ubuntu without losing my apps and files?
68614
Is it possible to install an old version of Mac OS on a new Mac?