How to Flash Android 7.1.1 Nougat on the Samsung Galaxy S2 (Tutorial)

This full tutorial applies to the Galaxy S2 I9100, I9100m, I9100t, and I9100p (no NFC)\r
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DO NOT ATTEMPT ON ANY OTHER VARIANT\r
The method is similar for the i777, i727, and T989 \r
But the ROM, recovery, and partition files are different\r
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Any Android 6.0, 6.0.1, 7.0, 7.1, 7.1.1 /\r
Cyanogenmod (LineageOS) 13, 13.1, 14, 14.1 ROM\r
can be flashed using this method\r
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FILES TO DOWNLOAD:\r
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Odin 307:\r
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CWM recovery:\r
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Marshmallow Kernel:\r
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IsoRec TWRP:\r
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Re-partition flash-able file:\r
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Alternate name pit file for anyone having trouble:\r
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Resurrection Remix: \r
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OpenGapps:\r
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use ARM 7.1 and whichever version you prefer (I have only tested nano)