Jailbreaking 7.1.2

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Hi, I want to try jailbreaking for the first time. I have a iPhone 4 that is running ios 7.1.2. I don't use this phone as my primary phone anymore, so I want to jailbreak it. none of the tools I installed work well with JAWS or NVDA. I installed Pangu and tabbed three times. When I hit inter, Pangu took me to internet explorer. When I asked my dad to read the page, he said that the page is in Chinese. Is there an English version of Pangu for my version of ios? Green POise dose not work well either. What jailbreak tool can I use for 7.1.2, is in English, and works with a screen reader?