Toshiba laptop AMD A6 not responding

Please I'm really sorry for my earlier question which I refused to show a sign of courtesy.
Please I'm using a Toshiba laptop which I tried to switch the memory with HP after switching both of the laptops never responded so I took the memory back and the HP one is working normal which the Toshiba is not responding at all.
The power in on,the ROM power too blinks after this nothing is showing again the screen isn't coming neither the lights on the caps lock and the number lock is showing either.
I have virtually tried all the answers to other people's question on this platform but yet still not positive sign.
Sp please I'm writing to you if you could be of help to me.
Thank you.