I can't set my fingerprint id on iphone 5s?

When i try to set up, it will immediately show Failed. Please try again later. I have tried it many times but the results is still the same.

Clean your finger and use it fully dry, wipe the Touch ID sensor too.

Try not to put your finger to high on the sensor, just use the top and middle part for most of it and don't lift it up too much for you will lose your position.

Once set up, when using it, I recommend you try not to make your finger touch the upper part of the sensor, that way it'll read more of your finger, if it is touching above it, it's more probable that less of your finger is actually being read. At least that's how it is for me.