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Go Back   GSM-Forum > Product Support Sections > Hard/Software Products (official support) > Easy-Jtag

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Old 10-16-2019, 15:38   #1 (permalink)
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j400f kg state prenormal


can i remove j400f kg state prenormal with jitag or downgrade securty from u4 to u2 if i erase flase and write pit and bl from u2 flash file plese need help
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Old 10-18-2019, 21:35   #2 (permalink)
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device will be not be start with older BL
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Old 10-18-2019, 22:25   #3 (permalink)
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ok then some file write on cpu you mean
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Old 10-19-2019, 00:19   #4 (permalink)
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cpu have fuse - OTP zone
CPU cant work with old BL, ater fuse is used
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