iPad Air 2 making a 16GB version bigger (any bigger than 16, so 32..upto 128)

I have an iPad Air 2 and really works great. But the 16GB storage capacity starts to be too small.
The question is: is it possible to somehow de-solder the old storage chip (not RAM) and replace it with a bigger one. Of course with a chip which is supported by the system.
Thank You for Your help in advance.

I believe there is a way but you would need to reprogram it too after the hardware swap. Look up magico diag tool, im not sure if that tool support air 2 , double check before you decide to buy