# UNO Q: LED\_BUILTIN/LED3\_R does not blink under IDE 2.3.7

**URL:** <https://forum.arduino.cc/t/uno-q-led-builtin-led3-r-does-not-blink-under-ide-2-3-7/1442280>\
**Category:** UNO Q\
**Created:** [May 1, 2026, 4:15pm UTC](https://forum.arduino.cc/t/uno-q-led-builtin-led3-r-does-not-blink-under-ide-2-3-7/1442280 "2026-05-01T16:15:12Z")\
**Posts on this page:** 1\
**Showing post:** 39

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**Author:** ![GolamMostafa](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/golammostafa/32/239011_2.png) [@GolamMostafa](https://forum.arduino.cc/u/GolamMostafa)\
**Post date:** [May 2, 2026, 12:14pm UTC](https://forum.arduino.cc/t/uno-q-led-builtin-led3-r-does-not-blink-under-ide-2-3-7/1442280/39 "2026-05-02T12:14:05Z")

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@ptillisch @Willem43

Woo!!

Great news!!

My IDE2.3.8 is now blinking LED\_BILTIN and sending message to Serial Monitor.

I have followed these steps on a flashed UNO Q:  
**1.** udated board package Ver: 0.55.0 using BOARDS MANAGER under IDE.  
**2.** updated router brdige library Ver: 0.4.1 along with all dependencies using LIBRARY MANAGER under IDE.

Now, I have a healthy UNO Q. I am going to give full concentration to my newly opened thread:  
[UNO Q: Sharing Knowledge, Tips, and Practical Skills](https://forum.arduino.cc/t/uno-q-sharing-knowledge-tips-and-practical-skills/1442313?_gl=1*ijj0we*_up*MQ..*_ga*NDA5Mzg3MTA1LjE3Nzc3MDEzNDM.*_ga_NEXN8H46L5*czE3Nzc3MDEzNDIkbzEkZzAkdDE3Nzc3MDEzNDIkajYwJGwwJGgxNTU1MzkyNTM0)  
I cordially invite you to join with your knowledge, tips, and skills and at the same time keep interaction with questions and answers.

Thank you all for the generous guidance.

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