I have a strange issue on a tablet ACER B1-780 (Android 6.0, ARM64). Recognition is fine on 3 first models (GoogleNet, SqueezeNet), but fails on CaffeNet and AlexNet. In fact it returns the following error:
__bionic_open_tzdata_path: ANDROID_DATA not set!
__bionic_open_tzdata_path: ANDROID_ROOT not set!
and empty recognition. I don't know if it will be easy to reproduce such issue, because all models work fine on my S7 ...