# URGENT - will not power on at all! **URL:** \ **Category:** Uncategorized\ **Created:** [November 3, 2025, 7:56pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/urgent-will-not-power-on-at-all/1136 "2025-11-03T19:56:08Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![sweh](https://avatars.discourse-cdn.com/v4/letter/s/b5e925/32.png) [@sweh](https://rpi-rgb-led-matrix.discourse.group/u/sweh)\ **Post date:** [November 3, 2025, 7:56pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/urgent-will-not-power-on-at-all/1136/1 "2025-11-03T19:56:08Z")
im really stumped..I’m working with a 128x64 HUB75 RGB LED panel connected through an ElectroDragon RGB Matrix HAT to a Raspberry Pi. I’m using the rpi-rgb-led-matrix library, and I’ve already rebuilt it multiple times, tested different --led-row-addr-type, --led-no-hardware-pulse, --led-pwm-bits, and gpio mapping settings. The panel did light up before, and sometimes it will flicker but as soon as I power-cycle the PSU and reboot, the panel ignores the demo commands entirely and stays dark. can you help? this is my matrix driver **[https://www.electrodragon.com/product/rgb-matrix-panel-drive-board-for-raspberry-pi-v2/](https://www.electrodragon.com/product/rgb-matrix-panel-drive-board-for-raspberry-pi-v2/)** those are my LEDs: **[https://www.ebay.com/itm/225833455494](https://www.ebay.com/itm/225833455494)** this is my regulator that is supplying up to 15Amps > **[Amazon.com: DC 12V 24V to DC 5V 3A 15W Power Converter Step Down Converter...](https://www.amazon.com/Converter-Adapter-Regulator-Supplies-Transformer/dp/B0F1F9VPGM)** > > Buy DC 12V 24V to DC 5V 3A 15W Power Converter Step Down Converter Adapter Voltage Reducer Regulator Power Supplies Transformer Module: Power Converters - Amazon.com ✓ FREE DELIVERY possible on eligible purchases this is my schematic the only thing tht i did different here is the HAT is a different one (its the one i linked) and it also doesnt have the photointerrupter on it soldered. ![Screenshot 2025-10-27 180552 (1)](https://global.discourse-cdn.com/free1/uploads/rpi_rgb_led_matrix/original/1X/59dd8258d0a576470d74acfdae0c713b14513e6e.jpeg) this is it when it lit up that one time ![IMG_7492](https://global.discourse-cdn.com/free1/uploads/rpi_rgb_led_matrix/original/1X/f1f323b99ed71277fd381aca51493b8c8f728dcb.jpeg) ![IMG_7493](https://global.discourse-cdn.com/free1/uploads/rpi_rgb_led_matrix/original/1X/5b3312920401d52e270ddb87533606d3b97cdb98.jpeg) ---
**Author:** ![board707](https://avatars.discourse-cdn.com/v4/letter/b/bc79bd/32.png) [@board707](https://rpi-rgb-led-matrix.discourse.group/u/board707)\ **Post date:** [November 4, 2025, 4:12pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/urgent-will-not-power-on-at-all/1136/2 "2025-11-04T16:12:21Z")
Your panel has an incompatible driver F6373C. ![Screenshot from 2025-11-04 18-55-42](https://global.discourse-cdn.com/free1/uploads/rpi_rgb_led_matrix/original/1X/9259f37fbefb836feab405a1f867a15622885ac8.jpeg) There is no way to make this panel work with the library. ---
**Author:** ![jonms](https://yyz2.discourse-cdn.com/free1/user_avatar/rpi-rgb-led-matrix.discourse.group/jonms/32/504_2.png) [@jonms](https://rpi-rgb-led-matrix.discourse.group/u/jonms)\ **Post date:** [November 8, 2025, 5:21pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/urgent-will-not-power-on-at-all/1136/3 "2025-11-08T17:21:20Z")
If that’s the link to the board you’re using… then it has a fault. The page you listed above has a link to the explanation ([MPC1119-error-dat.md](https://w2.electrodragon.com/Board-dat/MPC/MPC1119-DAT/MPC1119-error-dat.md)). I thought Electrodragon were shipping replacements to everyone who had purchased this version - if you contact them with the purchase details I’m sure they’ll do a replacement… … or you can fix the one you’ve got until the replacement arrives. ---
**Author:** ![marcmerlin](https://yyz2.discourse-cdn.com/free1/user_avatar/rpi-rgb-led-matrix.discourse.group/marcmerlin/32/40_2.png) [@marcmerlin](https://rpi-rgb-led-matrix.discourse.group/u/marcmerlin)\ **Post date:** [November 27, 2025, 6:13am UTC](https://rpi-rgb-led-matrix.discourse.group/t/urgent-will-not-power-on-at-all/1136/4 "2025-11-27T06:13:33Z")
@board707 already answered, chip FM6373 does not work at this time and is not going to work unti someone puts significant work into a new driver