this is how to check your samsung galaxy gt i9300 or gt n7100 wether its dead boot or not
first thing, you need regulated power supply,
now lets start.
for example you have dead i9300 in hand and you want to check if it can prepair via isp or s-boot clip
, just connect your dead i9300 to power supply and power it on ,
if your power supply read up to 12% or up to 15% and return to 00% after u release the power button ,
then your phone have good hardware you can repair it via isp or s-boot clip,
but if your dead phone read up to 8% or up to 10% check the power ic
if your dead phone read up to 18% or up to 20% emmc damage you need to replace it ,
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