Ok, this is different from the factory reset button on the phone, no? I did a factory reset when I first got the phone and there's a button for it in the Privacy Settings. When I hit Factory Reset, that reset my phone. I wanted to know if that was the same as doing all those steps in that link, or if that was a different type of reset.
Once again, Im not the expert on this specifically. But i am extremely computer savvy and whatnot. This is the best i can explain it: When you installed the leaked patch it overwrote the existing firmware, software, files, etc. Unlike most PCs that employ a recovery option in which the PC has a backup copy of the original data, the data on the phone is basically overwritten and the original data isnt saved. This is because that would involve having Gigabytes of space used to hold the backup data (it saves space by not keeping a backup). Also to clarify more the manufacturer designed the system assuming users are only going to install offical updates (updates that will work and the user would therefore have no need of reverting to a prior version). This is also explanation why the manufacturer wont cover unoffical changes to a phone (imagine the time and money the company would spend if they offered to fix or replace any device that was modified unsuccessfully with unauthorized firmware/updates/etc)
Again im not an expert just very confident of my understanding of how this works. So your answer is NO the factory reset option on the phone wont revert all the changes that the leaked patch has made to your phone. Using the link I posted and following directions Exactly WITH PATIENCE is the only way to truely revert to out pf the box condition (or at least as close to it as possible).
Again, anyone else who knows more about this chime on to add to what ive said or to correct it!
Hope this helps. Let me/us know if you have anything more to say!
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