# Overvoltage Damage

Source: https://forum.modalai.com/topic/3692/overvoltage-damage
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Tags: microhard
Posted: 2024-07-31 22:55:48 UTC by Chad Zulu
Replies: 2 · Views: 1165

## Chad Zulu · 2024-07-31 22:55:48 UTC

Microhard pDDL Carrier USB Dongle + Microhard pMDDL2450 2.4GHz MIMO Digital Data Link
Accidental overvoltage damage (7.4V).

I'm still able to access the WebUI and apply settings.
The RX LED is solid green.
No radio activity (as expected)

My question is: Which component do you believe is damaged, the carrier board or the modem? Or both? 
Do you think that either is salvageable?

Thanks!
Chad

## Reply by Vinny (ModalAI staff) · 2024-08-01 22:59:01 UTC

Hi @Chad-Zulu 
Sorry to hear about that.
Most likely both modem and the M0048 carrier board are permanently damaged.

There are several components on M0048 that are rated for 6V ABS max, and according to MH they only tolerate 5.5V on their modem device.

## Reply by Chad Zulu · 2024-08-01 23:57:41 UTC (in reply to Vinny)

@Vinny Yep, that's what I figured. Thanks for the info!