Can't install apps from Test flight. There was an error with this request
After "Reset All Settings" on an iPhone 5 with iOS 8.3, I can't install betas via TestFlight.
Solution
@azimov the problem is coming from OS 8.3, we all have the same issue only with devices on OS 8.3.
I personally tried to re-invite, change the apple account, even reset my phone...