Hi Huy,
Please pay attention that, the flash size of your chip MKE02Z16VLC4 is 16K 0x0000 - 0x3FFF,
so you can't put the new vector table(APP vector ) into 0x4000 .

Also please refer to AN4767->2.4 User code to configure your APP.
If still have problem, I recommend you open the bootloader GUI win_hc08sprg(it under AN2295 ) project to debug ,
the information from GUI view can find in the GUI project source.
Hope it helps
Have a great day,
TIC
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