Hello everyone! I fucked up!
To make it short, I was looking for H2OS for my OP3 and came across this https://forums.oneplus.net/threads/6-0-1-hydrogenos-h2os-v1-4-0-all-sensors-debloater.438205/
And i thought "This looks good", so i downloaded everything and began flashing. But it was after I flashed this https://www.androidfilehost.com/?fid=24421527759880815
That i recongnize that i have flashed OP2 firmware... and the strange thing is that TWRP didn't give any errors. It went on as usual except that now i have a completly dead OP3.
so to sum it up;
*I have flashed OP2 FIRMWARE to a OP3
*It is hardbricked and is completley unresponsive. can't boot Fastboot or Recovery mode. It wont even light up if plugged into charger.
I guess my only save is to use a USB Jig. Or get it covered under warranty?
If anyone have any suggestions. Pleas tell them. Also, I am NOT a noob. (although it maybe was a noob mistake. but you have to admit, it is quite hard to tell what device the thread is for). Also, I am running Linux. and have W10 if thats to any help.
Thanks in advance!