Talk:Research & Development/Porsche 911 GT3 RS/@comment-31544835-20170624195153/@comment-31695453-20170625141420

Before starting the R&D you save your progress on the second iOS device, but don't participate in R&D on the backup device yet. On your racing device, start R&D, finish the first LAB, let the progress be saved to iCloud Game Center, close the game on your racing device. Grab the backup device, open the game, do not sync the progress, choose the local progress on your backup device you saved before even finishing the LAB1 on your racing device. Now participate in R&D on your backup device. You'll see that unlocked all LABs for you, save you progress to Game Center, simply by driving one or two random races to be sure. Close the game on the backup device. Open the game on your racing device, choose the synced Game Center progress and after opening the R&D menu, you should have your LABs unlocked here as well.