Touchscreen Keyboard problem

So i wanted to create a typing game for android
i used TouchScreenKeyboard.Open() to show up the keyboard and used input.inputString() to recieve input but
the words dont register when i press enter or space. The game only works with keyboard.
Also to test touchscreenkeyboard is there any other way except building the game and installing on phone?

You may use Unity Connect to run mobile games in editor and control it from your device.

what about receiving input? i need to continuously recieve each letter as input and hit space to check if typed