Log didn't create becouse he change name of map from 971 to 972 but ldr.bin is still from nuvi serie 12xx ( 971 )
From inventory page i see that you don't have JCV, lane assist and speed limit enabled, becouse you have beside splash D1340-10
If you can, try connect nuvi on Pc with win7 or xp.
Before you format or do something else, you must have stable connection with Pc or you will have not working nuvi.
Turn nuvi on ( don't connect to Pc) and go to map view and click on speed and here press for 10 sec speedometer.
Now search for non vol and clear it and you will see if nuvi will now work, but i doubt that clear non vol will help for your problem.