# HyperPixel 4.0, stopped working

**URL:** https://forums.pimoroni.com/t/hyperpixel-4-0-stopped-working/26792
**Category:** Support
**Created:** [December 16, 2024, 7:26pm UTC](https://forums.pimoroni.com/t/hyperpixel-4-0-stopped-working/26792 "2024-12-16T19:26:04Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![dip39](https://avatars.discourse-cdn.com/v4/letter/d/9de0a6/32.png) [@dip39](https://forums.pimoroni.com/u/dip39)
#### Post date: [December 16, 2024, 7:26pm UTC](https://forums.pimoroni.com/t/hyperpixel-4-0-stopped-working/26792/1 "2024-12-16T19:26:04Z")

</div>

Hi,  
I’m using HyperPixel 4.0, 4" TFT LCD display, 800x480, GPIO with Raspberry Pi 5.  
I have installed it successfully and added to `/boot/firmware/config.txt`

```auto
dtoverlay=vc4-kms-dpi-hyperpixel4,rotate=90

```

It was working perfectly, but after one day of reassembling my kit (unplugging and plugging it back in), the screen stopped functioning.  
When it boots, the backlight is on, but then (probably after booting the core) the backlight goes off and the screen remains black. When I run `shutdown now` the backlight again turns on, but still nothing on the screen.

Please help me to resolve the issue.

Here is the complete config.txt:

```auto
dtparam=i2c_arm=off
dtparam=audio=on
camera_auto_detect=1
display_auto_detect=1
auto_initramfs=1
dtoverlay=vc4-kms-v3d
max_framebuffers=2
disable_fw_kms_setup=1
arm_64bit=1
disable_overscan=1
arm_boost=1
[cm4]
otg_mode=1
[cm5]
dtoverlay=dwc2,dr_mode=host
[all]
dtparam=pciex1
dtparam=pciex1_gen=3
dtoverlay=vc4-kms-dpi-hyperpixel4,rotate=90

```