The HC never indicates that it is linked and I just checked the version, 4.13. It might be easier just to see images of HC, attached. It has never indicated that it has linked to a satellite and with the arm cover off, both before and after I replaced the battery, the GPS module led just blinks about 16/min.
Okay, so you will want to update the firmware on the HC, but that isn't going to fix the problem with the GPS not linking. All of our previous conversation regarding that issue still applies.
On this page of my website:
See the article "CPC Series" to see what changes have occured since HC 4.13. You will probably agree you want to perform the update. Then on that main Firmware page, see the article "How to Upgrade Hand Control Firmware - Version 4 Hand Control" for instructions.
And I just realized we ignored your SkyQLink question. That WiFi module plugs into one of the AUX ports on the base and then you can use the SkyPortal app (free) on a smartphone/tablet to take the place of the hand control. For a more capable app, SkySafari Plus/Pro will do the same thing. On this page of my website:
see the paragraph which starts "The first is Celestron's WiFi solution." SkyQLink is essentially the same as the SkyPortal WiFi module I discuss there - just an older version with a little less distance range. Note that this solution doesn't use the CPC's GPS module at all, so if you find you like it, you might not feel the need to fix the GPS in the mount.
Author of "The NexStar Users Guide II"
Author of "The NexStar Users Guide"
Author of "NexStar Observer List"