Samsung S7 stuck on samsung logo boot up screen. - Android Q&A, Help & Troubleshooting

Hey,
I am new here so feel free to move this thread if it's not in the right spot.
note:
So first things first. I own a Samsung s7 that's originally from the UAE(bought it on vacation). I live in the Netherlands so I guess there is a warranty issue with EU and MID-Asia.
Problem:
1. During web browsing, the screen turned off, the phone vibrated and the Samsung logo boot up screen popped up. Pressing the volume down and power button does restart the phone but I do not get passed this screen. I can not enter the recovery menu and the same goes for starting up in safe mode. So naturally, I googled and found out I had to flash the stock firmware with Odin. I did this followed the steps and it worked.
2. Fast forward one night. I wake up to find my phone died so I charge it up and voila, I am back to the same boot screen. I tried flashing again but this time it did not work. I went to a phone dealer(also does repairs), the guy looked at it, did the same thing I did and got the same results(did not work). His conclusion: motherboard fried.
But having the phone for less than a month I highly doubt it. I did not drop the phone, and it has not gotten wet. I do have a warranty but like is said in the beginning warranties are not international. And I am not going back anytime soon.
Question:
Is there anyone who can help me with the issue? Underneath you will find other specifics and also where I think things might have gone wrong.
Odin log file:
<ID:0/003> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Odin engine v(ID:3.1210)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Set PIT file..
<ID:0/003> DO NOT TURN OFF TARGET!!
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> NAND Write Start!!
<ID:0/003> SingleDownload.
<ID:0/003> sboot.bin
<ID:0/003> param.bin
<ID:0/003> cm.bin
<ID:0/003> boot.img
<ID:0/003> recovery.img
<ID:0/003> system.img
<ID:0/003> modem.bin
<ID:0/003> Transmission Complete..
<ID:0/003> Now Writing.. Please wait about 2 minutes
<ID:0/003> Receive Response from boot-loader
<ID:0/003> modem_debug.bin
<ID:0/003> Transmission Complete..
<ID:0/003> Now Writing.. Please wait about 2 minutes
<ID:0/003> Receive Response from boot-loader
<ID:0/003> cache.img
<ID:0/003> hidden.img
<ID:0/003> RQT_CLOSE !!
<ID:0/003> RES OK !!
<ID:0/003> Remain Port .... 0
<OSM> All threads completed. (succeed 1 / failed 0)
<ID:0/003> Removed!!
Things might have gone wrong:
Some old part of the previous flash files is on the phone which interferes.
Flashed the file of a wrong region (i used the Netherlands instead of UAE)
fast charger adapter fried the motherboard (going with the hypothesis the men gave at the store (motherboard fried))
I still can enter download mode
power button + volume down does seem to work
no response from volume up +home+power button
Any help or suggestions will be greatly appreciated.
Kind regards.

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Try a flash stock firmware with odin