[Q] Softbrick Need Help topic

Hello, i need some help with the problems i'm experiencing with my phone.
I'll go through all the steps I've done:
-suddenly the connectivity in my phone stopped working (no phone signal, wifi, bluetooth etc etc), this came up together with other issues: the power button of my phone rebooted the rom when held instead of giving me the choice to reboot or turn it off.
-i tried at first to get in the recovery with the 3 button "combo" with no luck since my power button apparently is still not working properly, if i keep holding the 3 buttons nothing happens until i release the power one; at which point the phone turns on.
-i got into recovery with the adb commands, flashed a new rom, no fix what so ever to the problems i was experiencing.
- i got inside the recovery again with adb installed a new rom this time performing a full wipe (system, sd card)
-once the flashing finished and i tried to reboot i got an error message e: cache could not be found, something like that, can't recall the exact text.
So at the moment i'm stuck in recovery mode, i pushed with adb a new rom, but after flashing it and trying to reboot i keep going straight into the recovery mode.
I tried flashing the original rom with Odin but i can't get into download mode, the power button is still not working properly and when i give through abd the command "adb reboot download" the phone reboots into the recovery instead of the download.

I'm completely stuck, tried everything i could think of yesterday, i would really appreciate your help.

Thanks in advance.