Ok, step by step.
got downloaded 9.205.rider3.CAB-navcore-RIDER.cab and placed in target SD card. Unpacked with 7-Zip
Copied all files from X_ttsystem.9.205.547817.1 to SD card. (overwriting ttsys)
Placed card in Rider, loaded and screen after splash screen is Select a map...No maps found.
Now SD back in PC,drive F: installed United Kingdom and Republic of Ireland 895.4444_Installer.exe to SD card, using PW
Install and TAASE ex completed.
SD removed and placed in Rider Splash screen followed by Problem with map.. You cannot use this map on this device: .....-622
Now crying my eyes out, despairing, remove SD and back in PC to try:
Placed latest FastActivate in SD card, run it, clicked on Maps,Voices,Speedcams .... Press any key to continue.
Removed SD and back in Rider....Splash screen... nothing!!! Stays there, no boot into anything!
Could 7-Zip be the problem? the PC? Have I missed something?