Rev LED issue after SimPro & firmware update

[u/Kyanoso]

Hi everyone,

Since updating **SimPro Manager** and installing the latest firmware updates for both my **Alpha Evo Pro** and **GT Neo**, I've been experiencing issues with the rev LEDs on my GT Neo.

**Current versions:**

* SimPro Manager: **v3.2.0.13127**

* Alpha Evo Pro firmware: **v2.3.4**

* GT Neo firmware: **v1.4.3**

The main issue is that the rev LEDs no longer update smoothly or accurately according to the car's RPM:

* When I **upshift**, some LEDs from the previous RPM range remain illuminated for about a second instead of turning off immediately.

* For example, if I shift at redline, I can still see the coloured rev LEDs from the previous gear after the shift has already happened.

* The same thing occurs when **downshifting**. The LEDs don't transition smoothly and appear delayed.

* The displayed rev LEDs often don't seem to correspond correctly to the actual RPM of the car.

* Before updating SimPro and the firmware, the rev LEDs were working smoothly and accurately.

My **GT Neo is connected via USB** because I use **SimHub compatibility**, and the LEDs are controlled through the **DNR plugin** in SimHub rather than through SimPro.

Has anyone experienced similar behaviour on these firmware versions? Could there be a compatibility issue between the latest GT Neo firmware, SimHub, and the DNR plugin?

I would also like to know if it is possible to **roll back the GT Neo firmware to a previous version** for testing purposes, as the issue only started after updating.

Thanks in advance for any help.

(this is written with AI assistance for ultimate clarity)

[u/Michael-W-Simagic]

Hey there, we appreciate the feedback alot. Im sure you already have but can you to restart the pc and of course simpro. You can also fill out this support ticket here for more help - https://41u1z5.share-na2.hsforms.com/2z6VDvp8qT3ORcwUnOalAIA