Acer keys producing wrong characters or dead in Pocharam?

Acer Aspire 1 A114 Keyboard Acer Aspire 3 A314 35 Keyboard Acer Aspire 3 A314 Keyboard Acer Aspire 3 A315 24 Keyboard Acer Aspire 3 A315 51 Keyboard Acer Aspire 3 A315 510 Keyboard Acer Aspire 3 A315 54 Keyboard Acer Aspire 3 A315 58 Backlit Keyboard Acer Aspire 3 A315 Keyboard Acer Aspire 3 A317 Keyboard Acer Aspire 5 A514 52 Keyboard Acer Aspire 5 A514 56 Backlit Keyboard Acer Aspire 5 A514 Keyboard Acer Aspire 5 A515 45 Keyboard Acer Aspire 5 A515 51 Keyboard Acer Aspire 5 A515 52 Keyboard Acer Aspire 5 A515 56 Keyboard Acer Aspire 5 A515 57 Backlit Keyboard Acer Aspire 5 A515 Keyboard Acer Aspire 5 A517 58M Backlit Keyboard Acer Aspire 5 A517 Keyboard Acer Aspire 5 Spin 14 Keyboard Acer Aspire 5732G 5732Z Laptop Keyboard Acer Aspire 5732Z 4737 Laptop Keyboard Acer Aspire 7 A715 42G Keyboard Acer Aspire 7 A715 43G Backlit Keyboard Acer Aspire 7 A715 74G Keyboard Acer Aspire 7 A715 75G Keyboard Acer Aspire 7 A715 76G Keyboard Acer Aspire 7 A717 Keyboard Acer Aspire E5 471 Keyboard Acer Aspire E5 571 Keyboard Acer Aspire E5 573 Keyboard Acer Aspire One 14 Laptop Keyboard Acer Aspire V3 571 Keyboard Acer Aspire V5 571 Keyboard Acer Aspire Vero Av14 Keyboard Acer Aspire Vero Av15 52 Keyboard Acer Aspire Vero Av15 53 Keyboard Acer Aspire Vero Av15 Keyboard Acer Aspire Vero Av16 Keyboard Acer Chromebook 311 C733 Keyboard Acer Chromebook 315 Cb315 Keyboard Acer Chromebook Cb314 Keyboard Acer Chromebook Plus 514 Keyboard Acer Chromebook Plus 516 Keyboard Acer Chromebook Spin 311 Keyboard Acer Chromebook Spin 513 Keyboard Acer Chromebook Spin 713 Cp713 Keyboard Acer Conceptd 3 Cn315 Keyboard Acer Conceptd 5 Cn515 Keyboard Acer Conceptd 7 Cn715 Keyboard Acer Conceptd 7 Ezel Keyboard Acer Conceptd 9 Cn917 Keyboard Acer E1 571 Base And Keyboard Acer Enduro Urban N3 Keyboard Acer Extensa Ex215 Keyboard Acer Nitro 16 An16 41 RGB Keyboard Acer Nitro 16 An16 71 RGB Keyboard Acer Nitro 16 An516 52 Keyboard Acer Nitro 16 An516 RGB Keyboard Acer Nitro 17 An17 41 RGB Keyboard Acer Nitro 17 An517 RGB Keyboard Acer Nitro 5 An515 43 Backlit Keyboard Acer Nitro 5 An515 46G Backlit Keyboard Acer Nitro 5 An515 51 Backlit Keyboard Acer Nitro 5 An515 52 Backlit Keyboard Acer Nitro 5 An515 53 Backlit Keyboard Acer Nitro 5 An515 55 Backlit Keyboard Acer Nitro 5 An515 57 Backlit Keyboard Acer Nitro 5 An515 58 Backlit Keyboard Acer Nitro 5 An515 59 Keyboard Acer Nitro 5 An515 Backlit Red Keyboard Acer Nitro 5 An515 Keyboard Acer Nitro 5 An515 Keyboard Backlit Acer Nitro 5 An517 Backlit Keyboard Acer Nitro 7 An715 RGB Keyboard Acer Nitro V 14 Anv14 Keyboard Acer Nitro V 15 Anv15 51 Keyboard Acer Nitro V 15 Anv515 Keyboard Acer Nitro V 16 Anv16 41 Keyboard Acer Nitro V 16 Anv16 41 RGB Keyboard Acer Nitro V 16 Anv516 Keyboard Acer Predator Helios 16 18 Per Key RGB Keyboard Acer Predator Helios 16 Keyboard Rgb Acer Predator Helios 16 Ph16 71 Keyboard Acer Predator Helios 16 Ph16 72 RGB Keyboard Acer Predator Helios 18 Ph18 71 RGB Keyboard Acer Predator Helios 18 Ph18 72 RGB Keyboard Acer Predator Helios 300 Keyboard Rgb Acer Predator Helios 300 Ph315 52 RGB Keyboard Acer Predator Helios 300 Ph315 53 RGB Keyboard Acer Predator Helios 300 Ph315 54 RGB Keyboard Acer Predator Helios 300 Ph315 Per Key RGB Keyboard Acer Predator Helios 500 Ph517 RGB Keyboard Acer Predator Helios Neo 14 Phn14 Keyboard Acer Predator Helios Neo 16 RGB Keyboard Acer Predator Triton 14 Per Key RGB Keyboard Acer Predator Triton 17X Ptx17 Keyboard Acer Predator Triton 17X RGB Keyboard Acer Predator Triton 300 Pt315 RGB Keyboard Acer Predator Triton 500 Pt515 RGB Keyboard Acer Predator Triton 500 Se Pt516 RGB Keyboard Acer Predator Triton Neo 16 Keyboard Acer Predator Triton Neo 16 Ptn16 RGB Keyboard Acer Spin 1 Sp114 Keyboard Acer Spin 3 Sp314 54N Backlit Keyboard Acer Spin 3 Sp314 Keyboard Acer Spin 3 Sp316 Backlit Keyboard Acer Spin 5 Sp513 54N Backlit Keyboard Acer Spin 5 Sp514 54N Keyboard Acer Spin 5 Sp514 Keyboard Acer Swift 1 Sf114 33 Keyboard Acer Swift 1 Sf114 34 Keyboard Acer Swift 1 Sf114 Keyboard Acer Swift 14 Ai Sf14 Keyboard Acer Swift 3 Sf313 Keyboard Acer Swift 3 Sf314 43 Keyboard Acer Swift 3 Sf314 51 Keyboard Acer Swift 3 Sf314 511 Keyboard Acer Swift 3 Sf314 54 Keyboard Acer Swift 3 Sf314 57 Keyboard Acer Swift 3 Sf314 59 Keyboard Acer Swift 3 Sf314 Keyboard Acer Swift 3 Sf316 Keyboard Acer Swift 5 Sf514 51 Keyboard Acer Swift 5 Sf514 53T Keyboard Acer Swift 5 Sf514 55T Keyboard Acer Swift 5 Sf514 Keyboard Acer Swift 5 Sf515 Keyboard Acer Swift 7 Sf714 51T Keyboard Acer Swift 7 Sf714 52T Keyboard Acer Swift 7 Sf714 Keyboard Acer Swift Edge 14 Keyboard Acer Swift Edge 16 Keyboard Acer Swift Edge 16 Sfe16 43 Keyboard Acer Swift Edge 16 Sfe16 44 Keyboard Acer Swift Go 14 Sfg14 71 Backlit Keyboard Acer Swift Go 14 Sfg14 71 Keyboard Acer Swift Go 14 Sfg14 72 Backlit Keyboard Acer Swift Go 14 Sfg14 Keyboard Acer Swift Go 16 Sfg16 71 Keyboard Acer Swift Go 16 Sfg16 Keyboard Acer Swift X Sfx14 41G Keyboard Acer Swift X Sfx14 71G Keyboard Acer Swift X Sfx14 72G Keyboard Acer Swift X Sfx14 Keyboard Acer Swift X Sfx16 51G Keyboard Acer Swift X Sfx16 52G Keyboard Acer Travelmate B B118 Keyboard Acer Travelmate B B311 Keyboard Acer Travelmate P2 Keyboard Acer Travelmate P2 P4 Keyboard Acer Travelmate P2 Tmp215 52 Keyboard Acer Travelmate P2 Tmp216 Keyboard Acer Travelmate P2 Tmp249 Keyboard Acer Travelmate P4 Keyboard Acer Travelmate P6 Keyboard Acer Travelmate P8 Tmp815 Keyboard Acer Travelmate Vero Tmv15 Keyboard