Replace the keyboard, it is not of any use if the electronics inside of the keyboard is irresponsive, you can temporarily use external keyboard but you need a replacement . I had dropped beer , had kept it upside down for couple of hours but couldn't save it completely . Salt n sugar in the water make electric charge conduct so that's harmful for electronics . I suggest you to replace the keyboard.
Clearing cache is not the solution, there must be a file to process …. Get your phone to download mode flash clock work mode, copy a working rom to (pda) micro USB card flash it using Odin software and that should be it ! It's not difficult you can figure it out ..!
Please check if the drone battery is charged, the propeller will only spin if it have power! To check if the remote is connected to the drone make sure both the batteries are charges unless they have other hardware issue or failures .
If you're sure that it's not the battery as you have mentioned you changed the battery, then try to figure it out by going in the settings and selecting Battery option ...what's consuming your battery. Calibrated your battery it should solve your problem. OS which keeps track of battery capacity, when it is full or empty. The problem is that it sometimes becomes corrupted and starts displaying data that isn’t real, which, for example, causes the phone to turn off before it reaches 0 percent. Calibrating your Android battery simply means getting the Android OS to correct this information so it is reflective of your actual battery levels once again. Method 1 1. Discharge your phone fully until it turns itself off. 2. Turn it on again and let it turn itself off. 3. Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 percent. 4. Unplug your charger. 5. Turn your phone on. It's likely that the battery indicator won't say 100 percent, so plug the ch...