hi all,
i have 2 mbp for repair and both have a bad smc chip which heats when laptop powers on lm4fs1ah5bb(980 YFC).now these are some kind of secretive chips made by TI which are not listed on their site m4 arm cortex.okay so what i am getting at that these chip need to be programmed the new ones are blank so when i put the new ones it powers on but no magsafe green lite. i hear the apple chime but no display.anyone on this,there is a 20pin connector which says xdp/lpc plus and have jtag signal. so i was wondering if we can connector a jtag unit and copy the firmware. or is there another way.
thanks
i have 2 mbp for repair and both have a bad smc chip which heats when laptop powers on lm4fs1ah5bb(980 YFC).now these are some kind of secretive chips made by TI which are not listed on their site m4 arm cortex.okay so what i am getting at that these chip need to be programmed the new ones are blank so when i put the new ones it powers on but no magsafe green lite. i hear the apple chime but no display.anyone on this,there is a 20pin connector which says xdp/lpc plus and have jtag signal. so i was wondering if we can connector a jtag unit and copy the firmware. or is there another way.
thanks