I never have Jailbroken an iPhone. But, spent many years rooting Android phones and helping people out of jams. So, I would recommend reading any threads in MacRumors or anywhere else to get familiar with the process and terminology. Have already in your mind what you are going to do and why. Make a backup first. I don't know if you can hard brick an iPhone like you can, albeit rare, an Android. It can be fun, just be prepared.
Good advice.
In the early days back when jailbreaking involved arcane hardware devices and multiple steps you could brick your device. But later on and up 'till now you have to be trying very, very, very hard to brick it. A simple DFU restore will get you out of any bad spot - unless the device had hardware problems to begin with.
I always caution people who want to jailbreak to think about what problem it is they want jailbreaking to solve. If they don't have a problem with stock iOS then there's really not a reason to jailbreak. Theming your device because you're bored with how it looks is not a reason. Theming your device because you want to solve an issue you have with the current look IS a reason.
But there are some things jailbreaking won't solve. It will not automagically give you unlimited data. It won't allow you to unlock your device. It won't give you LTE if you live in a 3G only area. It won't unlock carrier restrictions that are done on the carrier side.
In short, it's not a magic wand you can wave to solve all your carrier/device issues.
Finally, I also caution people to realize that when they jailbreak they take responsibility for their security. Jailbreaking is safe, but if you insist on adding pirate repos and installing cracked apps then you're begging for the problems you will encounter. Apple keeps you safe from these things by being responsible for it through the app store. You don't have that protection when you jailbreak. No one is going to vette things for you. So do your own due dilligence and don't screw yourself by doing stupid things.
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Reason I want to do it is so I can have dark mode.
Which is a good reason. Although I'm not sure if there's any tweak that activates that.
There have been tweaks in the past such as Eclipse and Nightmode that create dark themes. Eclipse is on version 4 right now for iOS 10. I'm on iOS 9 so I'm using Eclipse 3.
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Well said.
We don't really know what will be released in the future. It doesn't necessarily mean we're stuck with semi tethered exploits from now on.
They might come out with a fully untethered userland jailbreak. Or even better a bootrom hardware exploit that enables fully untethered jailbreaks for the life of the device.
I know I like to dream big
lol
I've heard a bootrom exploit is possible at some point.
At leas that's been a faint rumor over on reddit.