using some default keys without any response

[lwd989]

（Hello everyone，I bought the battle of Stalingrad standard version from steam in December last year）I recently installed it on the laptop，during the play I have tried yak-1.69 and il-2

 

I find no matter the quick mission or the career mode，when I use keyboard+mouse with default key mapping to control  the plane.Even after setting realism to expert or custom(only allow the autopilot and engine warm up),only some basic keys works（like:binding to flap/gear-up/down, engine start,throttle up/down,light on/off,radio switch between eneny and ally,canopy open，gunfire).While some other important keys not responding at all (For il-2 simply can't release the bome by pressing "B" / For yak-1.69 simply can't adjust oil/water radiator shutters and engine mix by pressing the default keys) 

ps:
game version:4.707
laptop:HUAWEI matebook 13
video card: Nvidia mx250(2g)
ram:8g
core:intel i7-8565U(25w)
windows 10(64 bit)
 

[lwd989]

Any ideas？