CHUWO LapBook 15.6 Keyboard

I have the CHUWI LapBook 15.6.
Ser No. L15 Q64G40170300467
I need some assistance with the Keyboard, please.
The following keys are NOT working …
Delete \ FGHL;C,./ and the UP and DOWN arrows.
At first I thought it may be a Windows problem and performed a FULL rebuild.
Many thanks to this forum for all the bits and Info required.
A perfect job.
However the Keyboard is still the same.
Questions are …
Is the stock CHUWI Keyboard prone to faults?
As I can get one from AliExpress, is there a help file to assist with the changing of the keyboard.
The last thing I want to do is kill the LapBook after I have bought a new Keyboard.
Any help would be appreciated in making the job easier.
Many thanks and be well.

Probably just bad luck.,searchweb201602_,searchweb201603_
This keyboard is “not replaceable”, to replace it you will have to remove the metal plate which is fused to the topcase, if you have never changed such keyboards, it is better to go to the service to replace it.

Many thanks for your assistance. I will look into it.
Be well.