I don't have access to a 2xx9 device presently so cannot check the proper size of region 154 on a healthy device. I'd appreciate it if any other reader/s can confirm that it's correct at 2048 KB i.e. 2 MB (binary megabytes). Most devices have 4 MB or even 6 MB available for their NV region afaik.

Regardless lets press on and try dumping the entire file system so we can examine what's in there. You'll need to use a clean empty microSD for this kit, if you use the same card make sure to keep a copy of 154.bin before cleaning. Generally just follow the previous instructions in Post #384. Look behind the spoiler:
Spoiler: Click
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It's of particular interest as to what map *.IMG files are contained in it, either in the .System folder or Map folder. You may need to enable some things in Windows File Explorer to see the .System folder and its contents, see [Only registered and activated users can see links. ].

Once you can see the all map files in .System and Map folders, open each of them in GMapTool (link below), Click either "Info" or "Details" button and if the file is faulty the program will tell you.
Code:
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