[Q] Recovery Mode Buttons won't work - Cant boot also

Hi,

I have this old Galaxy Ace Plus phone which doesn't boot. It had an old SlimRom on it and I installed the stock firmware over it by odin.

The phone starts boots to the 'SAMSUNG' logo that appears in the middle of the screen just before the homepage screen and vibrates sort of 'prrrr prrrr prr prr prr' and reboots and the same thing continuously.

Since then it won't boot and won't even go to recovery mode. When I press the recovery mode combo it does nothing 'black blank screen and no sound or vibration activity as if the phone is switched off completely'.

As per a few threads I saw to fix the bootloop you need to go to recovery and flash a file but because I can't go to recovery I am stuck.

However I can go to the download mode.

Here is what I have tried so far..

Re-downloaded and reinstalled the stock firmware
Tried to flash different recovery's.
Tried different ODIN versions (all say passed/OK)
Reboot manually after odin flash directly to recovery mode
Played with battery and some buttons
Tried different location stock firmwares

Nothing so far..

Is there anything else I can try ?

Thanks.