Goldtouch Go! keyboard layout incorrect after upgrading

[Aiora]

I use a keyboard model Goldtouch Go! like this (http://lowendmac.com/ed/moore/09cwm/goldtouch/gthandleopen.jpg)

It has been working fine using Ubuntu 14.10 up until 15.10. However when I upgraded to Ubuntu 16.04, some keys stopped working as they should.

Looking at the keyboard layout chart (which indeed doesn't correspond to the layout of the Goldtouch keyboard), the keys incorrectly detected are:
- Left Ctrl is detected as Meta L/Alt L
- Left Alt as Super L
- AltGr as Super R
- Rigth Ctrl as Level3 Shift
- Insert as NumLock
- Top right key (|) as Delete
The eight keys on the left of the keyboard behave as if their secondary function was activated (in yellow here https://i.ytimg.com/vi/Sfdps5Lojhw/maxresdefault.jpg), e.g.:
- Print screen as Eject
- Delete as lower volume
- Windows key as control

The following behave correctly: arrows, home, end, page up/down, delete, return, Shift L and R, Caps Lock, Left Tab, F1-12

The same keyboard plugged in another laptop with Ubuntu 16.04 behaves the same way (incorrectly).

I could try making a manual edit of the keyboard map, however, this worked fine in Ubuntu 15.10 so it shouldn't be too hard to fix. Help is much appreciated!

I don't know which package(s) is involved.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: keyboard-configuration 1.108ubuntu15
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Tue May 24 17:19:02 2016
InstallationDate: Installed on 2016-05-23 (1 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: console-setup
UpgradeStatus: No upgrade log present (probably fresh install)

[Aiora (aiora-zabala)]

Please cancel the bug. It turns out that I had switched from PC to Mac in the keyboard itself. Switched it back and fixed (pressing simultaneously Ctrl/Win + Shift L + Ctrl/option + up arrow). Apologies!