I installed GMXT .30w ASN and would like to share what I discovered and the workaround that worked for me.
It may also work for you if you suffer the same problems like mine.
BTW, GPS could not be detected by Garmin initially but later it was solved by using the "Invalid_Id" solution.
The problems & the workarounds:
1) Upon exiting Garmin, "toolhelp.dll missing" error message appeared.
I discovered from MortScript manual and came to realize that my Chinese PNA is a "stripped down" WinCE device and "toolhelp.dll" is missing. Therefore, MortScript functions 'Kill' and ProcExists cannot be used.
I made modification to "Garmin.mscr" by replacing:
If(ProcExists("explorer.exe"))
Kill("explorer.exe")
EndIf
with this:
Run("\windows\explorer.exe")
Sleep 1000
Close(ActiveWindow())
2) Make Changes to Settings Stay (eg Chinese - > English lang)
The key to solve the problem is to get SDMMC and stick it in this Chinese PNA. By installing Garmin in ResidentFlash, changes to the Settings would not stay.
Once Garmin was installed in \SDMMC\Garmin, I noticed after few trying & observations that the Settings files were placed in \SDMMC\Garmin\Garmin ... Hmmmm ... and not in device root directory \Garmin. By this time, changes I made in Settings now stayed as configured.
This is the modified 'Garmin.mscr" that works for me:
Errorlevel("warn")
If(WndExists("Garmin Mobile XT"))
Show("Garmin Mobile XT")
Exit
EndIf
#Run explorer.exe and wait a second
Run("\windows\explorer.exe")
Sleep(1000)
#Hide Taskbar
Run(SystemPath("ScriptPath")\"TaskbarHide.exe")
#Run Garmin Mobile XT.
#This script will not go to the next command before que.exe completely shut down
RunWait(SystemPath("ScriptPath")\"..\Apps\WM\que.exe")
#Run & close explorer.exe
Run("\windows\explorer.exe")
Sleep 1000
Close(ActiveWindow())
#Show Taskbar
Run(SystemPath("ScriptPath")\"TaskbarShow.exe")
Good Luck to those who suffered the same problems like mine
