The stock maps for the new R3 are on the TuneECU.net site, which you can access from Google Chrome on your Android tablet. The maps are in .zip files. (You can also get the maps in .hex format from the TuneECU.boards.net site). Downloads go into your downloads folder. Use Files by Google to unzip them. You need a file manager app to create new folders, like as sub folders under the TuneECU folder where the program is located, and copy the hex file map to the folder you’ve created. I use the Total Commander app to copy and move files, which you can get from the Google Play Storeou have been a great source of information as I am getting up to speed with TuneECU for the R3!