# Pico rgb keypad ( 4x4 ) not lighting buttons E or F

**URL:** <https://forums.pimoroni.com/t/pico-rgb-keypad-4x4-not-lighting-buttons-e-or-f/20165>\
**Category:** Support\
**Created:** [August 31, 2022, 5:58am UTC](https://forums.pimoroni.com/t/pico-rgb-keypad-4x4-not-lighting-buttons-e-or-f/20165 "2022-08-31T05:58:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ByronCZimmer](https://avatars.discourse-cdn.com/v4/letter/b/67e7ee/32.png) [@ByronCZimmer](https://forums.pimoroni.com/u/ByronCZimmer)\
**Post date:** [August 31, 2022, 5:58am UTC](https://forums.pimoroni.com/t/pico-rgb-keypad-4x4-not-lighting-buttons-e-or-f/20165/1 "2022-08-31T05:58:12Z")

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Recently purchased a [Pico RGB Keypad Base - Pimoroni](https://shop.pimoroni.com/products/pico-rgb-keypad-base?variant=32369517166675) from my local MicroCenter.

Soldered headers onto a fresh Pico W, installed the pimoroni Pico-W uf2 firmware and tried the demo.py code.

All buttons respond to being pressed but buttons E and F do not light up.  
I know all buttons respond to being pressed, because I have to press both E and F to get one color cycle to complete and move onto the next one.

The module uses I2C, so I don’t think it’s the soldering job or the connections.  
Is this a hardware ( 4x4 pad ) issue?  
What can I do to get it working fully?

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**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\
**Post date:** [August 31, 2022, 7:49am UTC](https://forums.pimoroni.com/t/pico-rgb-keypad-4x4-not-lighting-buttons-e-or-f/20165/2 "2022-08-31T07:49:18Z")

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The button press is i2c, lighting up the LED is done via SPI. Even so, if it was a soldering issue I would expect all or none to light up. More likely a board defect IMHO.