i0n1c is very famous as security researcher for iDevices. In the jailbreak community known as i0n1c and real name is Stefan Esser, released video clip showing his iOS 8.4 beta1 installed iPhone running unique Cydia application as the latest. It was the new concept for iOS 8.4 jailbreak because most of the Developers failed to release proper version for beyond 8.1.2 version. So iDevices users could make hopes for iOS 8.4 full version Cydia installation. Finally, it was able to jailbreak iOS 8.4 version. Pangu, TaiG and PP Jailbreak teams did it successfully. These three teams followed Stefan Esser’s method to find jailbreak tool for iOS 8.4.
Author of the CyberElevat0r tool. Even if, he proved via YouTube video, it is possible to jailbreak iOS 7.1.1 as untethered jailbreak with CyberElevat0r tool, he did not release it for the public. Pangu jailbreak team got the encouragement and released Pangu jailbreak version for iOS 7.1 to 7.1.x versions using Stefan method.
i0n1c expressed about iOS 10, when it released second beta version for the public. As the Security researcher, he identified system and security issues of this beta released. But until now he did not release any jailbreak tool for iOS 10.
Also iH8snow has involved for this case by publishing one of the videos to prove, it can be jailbroken iOS 10 beta 01 version.
However, there is no any public jailbreak release after Saigon Jailbreak tool released to iOS 10.2.1. Yalu102 jailbreak tool is the key tool to jailbreak iOS 10 to iOS 10.2 versions. In addition, KeenTeam demonstrated iOS 11.1.1 jailbreak using iPhone X at PoC 2017 as well as iOS 11 jailbreak using beta 2 and iOS 10.3.2 versions at MOSEC 2017. Keen jailbreak tool is not a real tool yet. Meanwhile of this Phoenix tool was released to jailbreak iOS 9.3.5 running 32-bit devices only.
Every time it has the lack of jailbreak in the field, i0n1c encourage others with given some solution. So, we can keep hope for iOS 11 jailbreak too with the combination of Stefan and other jailbreak teams. So, let’s see he will apply his method for iOS 11 jailbreak or not.
i0n1c publishes his JB magic into the world very rarely. Most important thing is even though he was able to prove installing Cydia is possible or not, he does not publish any jailbreak tool or method for the Cydia lovers. It was a big discussion about Cyberelevator tool. But it was not real.
Here is the his all efforts for the iOS versions jailbreak.
jailbreak effort of i0n1c was iOS 8.4 beta 01 jailbreak and proved via YouTube video, it is possible to jailbreak it for Cydia. But, it did not mention any tool, which used to complete the jailbreak. Then Pangu, TaiG and PP Jailbreak released tool version to jailbreak iOS 8.4.
Here is the video proved of iOS 8.4 beta 01 jailbreak.
i0n1c revealed about the CyberElevat0r tool as a untethered JB tool for the first time. But, it was not published. Pangu team got help from @evad3rs and @i0n1c to release Pangu tool for iOS 7.1.1 jailbreak. Pangu team been thankful for i0n1c as well as @evad3rs. But Stefan Esser rejected it by claiming the Pangu team did not buy the vulnerabilities never ever to release JB tool.
Here is the iOS 7.1.1 jailbreak video using CyberElevat0r tool.
When TaiG released version 2.1.3 to jailbreak iOS 8.4, there was a installing Cydia issue when using TaiG tool. i01nc pointed it. At that time TaiG team mentioned i01nc’s help via twitter after fixed it. Normally, Stefan is famous for doing nothing for Cydia without showing the possibility of download it for the iOS versions. So Cydia lovers lifted him up this time.