Some keys on the keypad are not working, like the del key and the letter p

Which is it? Not typing letters or not typing numbers?
For your information there is an Fn+Fx key combination that activate the overlaid numeric keypad (your calculator). Figure out which function key to use with the Fn key.

The ". del" key on the Numerick KeyPad will delete if you use the SHIFT key at the same time. It is easier to use the DEL key on the main keypad.

Keypad is number locked. Try to press the Fn + Numlock key to unlock the keys.

If you need further help, reach me via phone at https://www.6ya.com/expert/elixirjose_00375ea24bd8141b

Sorry but you found what is NORMAL for laptops. this is not a bug, error, fault, etc.

It does exactly what it is supposed to do even though it may have a proper number pad too. leave num lock off

Try this. Touch Keypad simulates a wireless phone keypad on the touch screen to allow you to enter text, numbers, and symbols just as if you were using a wireless phone keypad. Touch Keyboard simulates a 20-key QWERTY (typewriter) keyboard on the touch screen to allow you to enter text, numbers, and symbols similar to the way you would using a QWERTY keyboard. To use Touch Keypad or Touch Keyboard:  In a program, tap the Input Selector arrow, and then tap Touch Keypad or Touch Keyboard. To type lowercase letters, tap the keys on the dial pad or keyboard. To type a single uppercase letter, tap the Shift key and then tap the corresponding key. To type all uppercase letters, tap the Shift key twice. To change back to all lowercase letters, tap again. To enter a space after the word, tap the Space key. To start a new line, tap the Enter key. To backspace and delete a single character in any input mode, press the Back key. To open the Symbol pad, tap the Symbol key. To change the input mode:  Tap the Input mode key to switch to a different input mode: XT9 (predictive), Multitap (abc), or Numeric (123).

Hope this helps, let me know if this works or if I can help you with anything else.
JimmyC

if handy with tools you can open KB an check all traces are good
if not need to use a HB pencil to re-trace grid @ non-working key

NumLock is on. Look for the Fn key in the lower left corner, and lookint in the top right, the NumLock key.

hi! this is jc villarosa, i have problem with my keypad..i can't find key foil for my keypad..do u have idea where do i find key foil to buy?

You're kind of vague on your problem. If it's the smaller blue numbers for the calculator, you will need to use the function (fn) key. Hold the fn key and press the key the reads number lock (num lock), this should return the keys back to letters. You can find more info on the fn key and numbers lock under help in the start menu. If this isn't your problem, be more specific, and I'll be more than happy to help.

The 604 WIFI keypad starts off in small letters but by taping the key above the alt key it changes to captials but you have to tap it for each captial letter you want as it reverts to small letters once you tap a letter.