What people use to do with mib1 after they messed it up. The motto is back up before changing anything. I provide a link to the mib2 standard overall.nds file which fixes all of those who have lost that file which provides a universal solution that we worked out here, but there is no universal fix if you loose your mib1 map image. It's boots and braces approach that is required. The workaround of shifting that file was sorted out by Exciter 7 years ago with a bin walker. Impressed people at the time. But for mib1 standard maps the secret sauce was less obvious. East Yorkshire Retrofit may have a bottle of it if you can't do it yourself. I guess you have to exactly do what has been reported, if you deviate it won't work.
Reckon as I said with good computer skills buy a mib2 cheap card to get the CID which we know works. Copy your old map to that. Test then do the reported technique. If all fails you are down by £12 or so.
Reckon as I said with good computer skills buy a mib2 cheap card to get the CID which we know works. Copy your old map to that. Test then do the reported technique. If all fails you are down by £12 or so.