Currently, all jailbreak developers are busy to find jailbreak tool for iOS 8.4.1 version. It could happen any time. Therefore, you should prepare the iOS device for jailbreak iOS 8.4.1 version. So we refer this page to how to prepare iOS devices for iOS 8.4.1 jailbreak.
Backup Device data
Make sure to backup device data before running jailbreak process. Jailbreak is not unsafe process, or it is not harming to your device data. However, safer jailbreak process recommended using backup tool for data backup.
Currently, there are two methods for data backup such as iTunes and iCloud. However, we suggested using iTunes backup method.
Do not follow OTA update
Make sure to use iTunes for iOS 8.4.1 update. Pangu8 is the main competitor for iOS 8.4.1 jailbreak. Pangu jailbreak tool is not compatible with OTA updated devices. So use iTunes method for iOS 8.4.1 firmware update.
Therefore can Disable Software update button?
There is not a default option to disable Software Update in the Apple Devices. Therefore, iOS users can do it with Cydia application because there are tweaks to disable Software Update button.
Mikoto – Working iOS 5 to iOS 8
Software Update Killer – Working iOS 6 and iOS 5
After installed, it will disable Download and installed button on the Setting panel. However, still you can check OTA updates manually with setting panel.
Install Cydia Impactor
iOS 8.4.1 users can remove jailbreak with Cydia Impactor without the update to the new firmware and without losing jailbreak ability.