Why is my keyboard double typing letters and typing by itself?
when I type letters will double and when I delete or keep typing it contenues to do it
Question marked as
Try a forced restart of your iPhone, selecting the iPhone model among these:
- On an iPhone X, iPhone 8, or iPhone 8 Plus: Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Then, press and hold the Side button until you see the Apple logo.
- On an iPhone 7 or iPhone 7 Plus: Press and hold both the Side and Volume Down buttons for at least 10 seconds, until you see the Apple logo.
- On an iPhone 6s and earlier, iPad, or iPod touch: Press and hold both the Home and the Top (or Side) buttons for at least 10 seconds, until you see the Apple logo.
Is your device (what model?) running the current iOS version (11.2.6, available for 5s or later) ?
If not, update it. Update your iPhone, iPad, or iPod touch - Apple Support
Regards
Giulio