Thread: Troubleshooting for "bricked" or non starting devices

Thank you for your suggestion. The good news is that I succeeded in restoring the 730 functionality. I removed all files from both the TT drive and the SD card, formatted both, then reinstalled from backups that I had made over the years. At first I got the wrong map error, so I installed another by unzipping it to TT drive as well as the Activation.zip associated with that map. The version working now is 9.541, but I don't know how to find the map version. The error message said 100198 was no good. So no doubt you are the man to answer some questions, if you have the grace. So 1) how do I find the map version (.bif file; Fastactivate info?); 2) How/ where do I put files so TTHome will see them and offer to install them (like poi's and traffic/safety files, themes (used to be that I downloaded them from somewhere, put them somewhere or they got there by themselves and then home offered them to install; tweak the ov2 file?; copy to default backup folder specified in Home folder preferences?); 3) How can I stop the error message about can't update because of Internal/Malformed error (it must be on one of the device files since I don't get the error if no files are present); 4) I downloaded 4 .rar files comprising one map but my usual rar extractors can't open them-how would they be extracted and how combined (just extracting to the TT drive one by one?); 5) I see the tables of compatibility for map and version (eg 9.541, map 1030-9520) but how to install the correct navcore- Is there a site to download from?; a chart of compatibility? 6)Does F/A obviate the need for correct navcore? 7) Using F/A which map/program/navcore combination are required or not required depending on what F/A does? 8) Is ttgo.bif the only file that makes the map etc. device serial number specific? 9) Can that file be edited to reflect any other serial number for device functionality? ( I have lots of backup files for the 3 identical models I have had over the years and would like to use some files from other backups unless they are serial number specific.) Well I certainly hope you have the grace to address these concerns. Other forum people just blow me off.