Since the servers for this specific mobile version were officially shut down by EA years ago, modified APK files are often required to bypass the initial license check. If the official 1.7.0 APK fails to launch, you may need to look for an "Offline Mod" version of the APK, which has the license verification removed.
Optimized textures for high-resolution displays. Installation Components Fifa 15 Ultimate Team 1.7 0 Apk Obb Data File
Many users prefer v1.7.0 because: