Why don't you make a clean flash from the start...flash 757 ftf and see if it still restarting...if not, then you try to root it...did your ZU unlocked..?
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Yes phone is unlocked, I am using this build + root from last 20-25 days, and the problem is stared from last 2 days.
Yes phone is unlocked, I am using this build + root from last 20-25 days, and the problem is stared from last 2 days.