Macbook air early 2014 keyboard problem

The keys on my MacBook air ( early 2014) are not all working. Key A to L are not functioning and the power button isn’t working either . If i happen to turn off my MacBook i will then have to disassemble it to unplug the battery to turn it on again. I can’t not perform an smc reset since the power button isn’t working. Note that the keyboard is functioning normally other than those specific keys . Any advice?? Thanks in advance.