Sprint, Verizon and AT&T have all pushed OTA updates for the Galaxy S4 that add Apps to SD functionality and some other enhancements. However, the update includes a new bootloader that can’t be reverted, which effectively makes it impossible to root your phone.
I started getting the alert to install the system update on July 17th, and have avoided doing so because my phone is rooted and I don’t want to lose that ability. If you’re like me and want to stop getting all the obnoxious popups (as well as freeing up some extra space on your phone), follow these instructions to delete the update and kill the popup alerts. Again, this is only for rooted users.
1. Install Root Explorer (download link)
2. Navigate all the way back to the root / parent directory
3. Go into the cache directory.
4. Open the fota directory. Then click the check box next to the update.zip file and click the trash can icon at the bottom. Confirm to delete.
5. Restart your phone. You’ll no longer see the obnoxious popups to install the software update, and you’ll have freed up 350-ish megabytes in the process.
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