7 inch touchscreen display is completely dark wont turn on

i had to reinstall after it crashed trying to do apt-get upgrade and after that i put sd card in power on and nothing happens red light stays on with a blinking green light as well any assistance with figuring out why the touchscreen wont turn on plus fixing the apt upgrade issue, im aware i have to install the complete version before initiating the upgrade command but when i run that command it says theres no version in the repository... ?

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0 colporteur over 5 years ago

try sudo apt-get update after after complete sudo apt-get upgrade
or
sudo apt update after after complete sudo apt upgrade

I have noticed if you don't do an update before an upgrade you experience the error you are seeing. I gave you both version because the trend is to use just apt and move away from apt-get.
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0 colporteur over 5 years ago

try sudo apt-get update after after complete sudo apt-get upgrade
or
sudo apt update after after complete sudo apt upgrade

I have noticed if you don't do an update before an upgrade you experience the error you are seeing. I gave you both version because the trend is to use just apt and move away from apt-get.
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0 chriscart over 5 years ago in reply to colporteur

i do update before the upgrade the update works fine then when i attempt upgrade part of the way through screen goes black with white blinking line in top left corner i ti try to run apt get kali complete but i get the error that there is no such file in repository. my main issue as of now is my touchscreen wont even turn on shows no sign of power as depicted in the photos
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