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  1. For those who have installed the 2017 release (v7.0), here is the Nag Screen Removal hack. Requires supertestmode.zip (unzip it; copy TESTMODE.KEY to your FAT32 SD). This should work for Z110, Z120, Z130, Z140, X920, X930, X940. It should also work for F-series comparable models and likely others that have v7.0 firmware. This is dangerous - especially for noobies. Make a backup of any files you change - in fact making a backup of all files under \USER is a good idea. Keep the original file(s) until you are sure everything is working correctly. It is very easy to accidentally delete files or whole directories in TestMode. Copying and Pasting files is a real PITA and is very error prone. I recommend watching the YouTube video by JasonH on using TestMode (even though he calls it HackMode for historical reasons). Do not install Hackmode! Note: Install the 2017 map update before installing this hack. Do not change the file on the 2017 installation SD. If you do, the installation will fail. You will get the dreaded "Wrong SD" error. Note: I have no way ATT to verify that the F series NAVI.EXE is the same binary, so it would be helpful if someone could verify the bytes below are correct at that location. If not, more research will be necessary. Make a copy of the NAVI.EXE file on the 2017 update SD (in \UPDATE\USER\PRG\APL) to patch. Then using a hex editor (such as HxD): at offset 0xBEC18 change 05 00 00 0A to 00 00 A0 E1 and save the file. HxD also has a binary file comparison that can be used to make sure that only the above 4 bytes were changed. Then use a separate SD with TESTMODE.KEY and the patched NAVI.EXE on it. With your headunit turned on, insert the above SD. It will boot into TestMode. Go into File Maintenance. First, you need to identify the "active" set of files. There are two \USER\PRGx directories on your HU. The active one is indicated by the presence or absence of a file named \USER\PRG.FLG If this file is not present, the active application files are in \USER\PRG0\APL. Otherwise, the active files are in \USER\PRG1\APL. From now on I'll just call it the Active directory. The goal is to replace the Active NAVI.EXE with the patched one using File Maintenance. Since TestMode will not allow you to overwrite an existing file, you need to delete the one already there. Using TestMode, go to the Active directory and delete NAVI.EXE. Then go to the SD and select the patched NAVI.EXE and select Copy. Then go back into the Active directory and select Paste. It might take a minute to complete. Then remove the SD and reboot your head unit. The app should start and allow you to see the map without presenting the annoying Nag Screen.
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