My friend has a Samsung Galaxy S8 (not S8+) that has a broken screen, but after operating with this broken screen for a while, wouldn't boot past the Samsung logo, and now won't respond to a power connection at all.
So to be clear, the phone doesn't do anything when plugged in to power. No partial boot, nothing on the screen. Nothing happens.
What are the options for recovering the data on the device, that's on the onboard memory module (not on the Micro SD card)?
Is it possible to move the memory module to new phone hardware?
Could the phone still be partially alive and be able to use a diagnostic mode to download the data via cable?
What other troubleshooting steps should I use to diagnose what state the phone is in?
(I'm quite technical so feel free to get in to infinite detail.)