Black Widow v4 pro E, O and shift Key problems | Razer Insider
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Question

Black Widow v4 pro E, O and shift Key problems

  • May 29, 2026
  • 0 replies
  • 2 views

Hello,

I was already having issues with my E and O keys a few weeks ago. Strangely enough, I was able to fix them by changing the polling rate in Synapse from 1000 Hz to 2000 Hz. Right after the May 25 Synapse update, my problem with the E and O keys started up again. After I downloaded the latest firmware, it got even worse! My E key sometimes stops working for a split second when I press it. As of today, my Shift key is also affected.

I’ve already written to support, and they said they’d get back to me, but there’s not much they can do since my warranty has already expired. What I’ve noticed is that when I remove the keycap from the E key, it works without any issues… Do I really have a hardware problem, or is this actually due to the latest update?

What I’ve already tried:
Cleaning the keyboard

Firmware update

Different USB port
Different PC

Uninstalling Synapse
Hard reset of the keyboard

Here’s an example of how the keyboard types when I press ‘e’ and ‘r’ in succession for a certain amount of time:

Translated with DeepL.com (free version)


ererrrrrrrrrrrrrrrrrrrrrerrrrrrerererererererererererererrererererrrrrrererrrerrrrrerrrrererr

 

And here without the keycap on the E key:

 

ererererererererererererererererererererererererererererererererererererererererererer

 

I've already tried other keycaps, but no matter which ones I use, the problem persists…

Thanks in advance for your help.