diff --git a/grapple-hook/grapple-hook-macros/src/lib.rs b/grapple-hook/grapple-hook-macros/src/lib.rs
index a28bd0e..38a84ce 100644
--- a/grapple-hook/grapple-hook-macros/src/lib.rs
+++ b/grapple-hook/grapple-hook-macros/src/lib.rs
@@ -172,6 +172,13 @@ pub fn rpc(_attr: TokenStream, input: TokenStream) -> TokenStream {
         _ => Err("Not a path!").unwrap(),
     };
 
+    let boundless_generics = generics.params.iter().map(|x| match x {
+        syn::GenericParam::Lifetime(lt) => { let l = &lt.lifetime; quote!{ #l } },
+        syn::GenericParam::Type(t) => { let t = &t.ident; quote! { #t } },
+        syn::GenericParam::Const(_c) => quote!{},
+    });
+    let boundless_generics2 = boundless_generics.clone();
+
     let items = t.items.iter();
 
     let fns = t.items.iter().filter_map(|x| match x {
@@ -230,7 +237,7 @@ pub fn rpc(_attr: TokenStream, input: TokenStream) -> TokenStream {
     };
 
     // TODO: These need to eject the inner type from anyhow::Result.
-    quote! {
+    let q = quote! {
         #[derive(serde::Serialize, serde::Deserialize, schemars::JsonSchema)]
         #[serde(tag="method", content="data")]
         pub enum #request_enum_ident {
@@ -251,12 +258,14 @@ pub fn rpc(_attr: TokenStream, input: TokenStream) -> TokenStream {
         }
 
         #[async_trait::async_trait]
-        impl RpcBase for #ty {
+        impl #generics RpcBase for #ty {
             async fn rpc_call(&self, data: serde_json::Value) -> anyhow::Result<serde_json::Value> {
                 serde_json::to_value(self.rpc_process(serde_json::from_value(data).map_err(|e| anyhow::anyhow!(e))?).await?).map_err(|e| anyhow::anyhow!(e))
             }
         }
-    }.into()
+    };
+
+    q.into()
 }
 
 /* Helpers */
diff --git a/grapple-hook/package.json b/grapple-hook/package.json
index 5c7a65b..4d9ec87 100644
--- a/grapple-hook/package.json
+++ b/grapple-hook/package.json
@@ -1,7 +1,7 @@
 {
   "name": "grapple-hook",
   "private": true,
-  "version": "24.0.0",
+  "version": "24.0.1",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/grapple-hook/src-tauri/Cargo.lock b/grapple-hook/src-tauri/Cargo.lock
index 7003b75..783cba9 100644
--- a/grapple-hook/src-tauri/Cargo.lock
+++ b/grapple-hook/src-tauri/Cargo.lock
@@ -1158,9 +1158,9 @@ dependencies = [
 
 [[package]]
 name = "grapple-frc-msgs"
-version = "2024.0.5"
+version = "2024.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96b0255bc7532ea01eb1d10406bf34e998f4f4ec4c4da13985f424b2450f8d05"
+checksum = "7873a0302eaf78396f0f8def395b470f6ebe36649e770fa3312d7ad31f073072"
 dependencies = [
  "anyhow",
  "binmarshal",
@@ -1172,7 +1172,7 @@ dependencies = [
 
 [[package]]
 name = "grapple-hook"
-version = "24.0.0"
+version = "24.0.1"
 dependencies = [
  "anyhow",
  "async-trait",
diff --git a/grapple-hook/src-tauri/Cargo.toml b/grapple-hook/src-tauri/Cargo.toml
index 4c04515..d71db4e 100644
--- a/grapple-hook/src-tauri/Cargo.toml
+++ b/grapple-hook/src-tauri/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "grapple-hook"
-version = "24.0.0"
+version = "24.0.1"
 description = "Configuration Tool for Grapple Hardware"
 authors = ["Jaci Brunning <jaci.brunning@gmail.com>"]
 license = "GPLv3"
diff --git a/grapple-hook/src-tauri/src/devices/device_manager.rs b/grapple-hook/src-tauri/src/devices/device_manager.rs
index f28de41..cf0edb1 100644
--- a/grapple-hook/src-tauri/src/devices/device_manager.rs
+++ b/grapple-hook/src-tauri/src/devices/device_manager.rs
@@ -77,8 +77,8 @@ impl DeviceManager {
       let send = super::SendWrapper(self.send.get(domain).unwrap().clone(), self.replies_waiting.get(domain).unwrap().clone());
 
       let device = match (&id, device_type) {
-        (DeviceId::Dfu(..), _) => Box::new(FirmwareUpgradeDevice::new(send, info_arc.clone())),
-        (_, DeviceType::Grapple(GrappleModelId::LaserCan)) => LaserCan::maybe_gate(send, info_arc.clone(), LaserCan::new).await,
+        (DeviceId::Dfu(..),     DeviceType::Grapple(GrappleModelId::LaserCan)) => Box::new(FirmwareUpgradeDevice::<LaserCan>::new(send, info_arc.clone())),
+        (DeviceId::Serial(..),  DeviceType::Grapple(GrappleModelId::LaserCan)) => LaserCan::maybe_gate(send, info_arc.clone(), LaserCan::new).await,
         _ => unreachable!()
       };
 
diff --git a/grapple-hook/src-tauri/src/devices/lasercan.rs b/grapple-hook/src-tauri/src/devices/lasercan.rs
index 5038651..5ecb73b 100644
--- a/grapple-hook/src-tauri/src/devices/lasercan.rs
+++ b/grapple-hook/src-tauri/src/devices/lasercan.rs
@@ -1,9 +1,9 @@
-use grapple_frc_msgs::{grapple::{Request, errors::{GrappleError, CowStr}, lasercan::{LaserCanStatusFrame, LaserCanMessage, LaserCanRoi}, GrappleDeviceMessage, TaggedGrappleMessage}, DEVICE_ID_BROADCAST, Message, ManufacturerMessage, request_factory};
+use grapple_frc_msgs::{grapple::{Request, errors::{GrappleError, CowStr}, lasercan::{LaserCanStatusFrame, LaserCanMessage, LaserCanRoi}, GrappleDeviceMessage, TaggedGrappleMessage, device_info::GrappleModelId}, DEVICE_ID_BROADCAST, request_factory};
 use grapple_hook_macros::rpc;
 use tokio::sync::RwLock;
 
 use crate::rpc::RpcBase;
-use super::{SendWrapper, SharedInfo, GrappleDevice, FirmwareUpgradeDevice, Device, FirmwareUpgradeDeviceRequest, GrappleDeviceRequest, GrappleDeviceResponse, FirmwareUpgradeDeviceResponse, VersionGatedDevice, RootDevice};
+use super::{SendWrapper, SharedInfo, GrappleDevice, Device, GrappleDeviceRequest, GrappleDeviceResponse, VersionGatedDevice, RootDevice, start_field_upgrade, FirmwareValidatingDevice};
 
 #[derive(Clone, serde::Serialize, serde::Deserialize, schemars::JsonSchema)]
 pub struct LaserCanStatus {
@@ -72,11 +72,21 @@ impl Device for LaserCan {
   }
 }
 
+impl FirmwareValidatingDevice for LaserCan {
+  fn validate_firmware(_info: &super::DeviceInfo, buf: &[u8]) -> anyhow::Result<()> {
+    if &buf[0x150..0x154] == &[0xBEu8, 0xBAu8, 0xFEu8, 0xCAu8] && buf[0x15c] == (GrappleModelId::LaserCan as u8) {
+      Ok(())
+    } else {
+      anyhow::bail!("Invalid Firmware File. Are you sure this is the correct firmware?")
+    }
+  }
+}
+
 #[rpc]
 impl LaserCan {
   async fn start_field_upgrade(&self) -> anyhow::Result<()> {
     let serial = self.info.read().await.require_serial()?;
-    FirmwareUpgradeDevice::start_field_upgrade(&self.sender, serial).await
+    start_field_upgrade(&self.sender, serial).await
   }
 
   async fn set_range(&self, long: bool) -> anyhow::Result<()> {
diff --git a/grapple-hook/src-tauri/src/devices/mod.rs b/grapple-hook/src-tauri/src/devices/mod.rs
index a842ad6..9695fbd 100644
--- a/grapple-hook/src-tauri/src/devices/mod.rs
+++ b/grapple-hook/src-tauri/src/devices/mod.rs
@@ -4,7 +4,7 @@ pub mod provider_manager;
 pub mod roborio;
 pub mod lasercan;
 
-use std::{sync::Arc, time::Duration, collections::{LinkedList, HashMap}};
+use std::{sync::Arc, time::Duration, collections::{LinkedList, HashMap}, marker::PhantomData};
 
 use grapple_frc_msgs::{Validate, grapple::{device_info::GrappleModelId, GrappleDeviceMessage, firmware::GrappleFirmwareMessage, TaggedGrappleMessage, GrappleMessageId}, Message, DEVICE_ID_BROADCAST, ManufacturerMessage, binmarshal::{LengthTaggedVec, BinMarshal}, MessageId};
 use grapple_hook_macros::rpc;
@@ -165,16 +165,17 @@ impl Device for GrappleDevice {}
 
 /* FIRMWARE UPGRADE DEVICE */
 
-pub struct FirmwareUpgradeDevice {
+pub struct FirmwareUpgradeDevice<T: FirmwareValidatingDevice> {
   sender: SendWrapper,
   info: SharedInfo,
   progress: Arc<RwLock<Option<f64>>>,
-  ack: Arc<Notify>
+  ack: Arc<Notify>,
+  _t: PhantomData<T>
 }
 
-impl FirmwareUpgradeDevice {
+impl<T: FirmwareValidatingDevice> FirmwareUpgradeDevice<T> {
   pub fn new(sender: SendWrapper, info: SharedInfo) -> Self {
-    Self { sender, info, progress: Arc::new(RwLock::new(None)), ack: Arc::new(Notify::new()) }
+    Self { sender, info, progress: Arc::new(RwLock::new(None)), ack: Arc::new(Notify::new()), _t: PhantomData }
   }
 
   pub async fn field_upgrade_worker(sender: SendWrapper, id: u8, data: &[u8], progress: Arc<RwLock<Option<f64>>>, ack: Arc<Notify>) -> anyhow::Result<()> {
@@ -207,20 +208,22 @@ impl FirmwareUpgradeDevice {
 
     Ok(())
   }
+}
 
-  pub async fn start_field_upgrade(sender: &SendWrapper, serial: u32) -> anyhow::Result<()> {
-    sender.send(TaggedGrappleMessage::new(
-      DEVICE_ID_BROADCAST,
-      GrappleDeviceMessage::FirmwareUpdate(
-        GrappleFirmwareMessage::StartFieldUpgrade { serial }
-      )
-    )).await
-  }
+pub async fn start_field_upgrade(sender: &SendWrapper, serial: u32) -> anyhow::Result<()> {
+  sender.send(TaggedGrappleMessage::new(
+    DEVICE_ID_BROADCAST,
+    GrappleDeviceMessage::FirmwareUpdate(
+      GrappleFirmwareMessage::StartFieldUpgrade { serial }
+    )
+  )).await
 }
 
 #[rpc]
-impl FirmwareUpgradeDevice {
+impl<T: FirmwareValidatingDevice + Send + Sync> FirmwareUpgradeDevice<T> {
   async fn do_field_upgrade(&self, data: Vec<u8>) -> anyhow::Result<()> {
+    <T>::validate_firmware(&*self.info.read().await, &data)?;
+
     let sender = self.sender.clone();
     let progress = self.progress.clone();
     let id = self.info.read().await.require_device_id()?;
@@ -238,14 +241,14 @@ impl FirmwareUpgradeDevice {
   }
 }
 
-impl RootDevice for FirmwareUpgradeDevice {
+impl<T: FirmwareValidatingDevice + Send + Sync> RootDevice for FirmwareUpgradeDevice<T> {
   fn device_class(&self) ->  &'static str {
     "GrappleFirmwareUpgrade"
   }
 }
 
 #[async_trait::async_trait]
-impl Device for FirmwareUpgradeDevice {
+impl<T: FirmwareValidatingDevice + Send + Sync> Device for FirmwareUpgradeDevice<T> {
   async fn handle(&self, msg: TaggedGrappleMessage) -> anyhow::Result<()> {
     if msg.device_id == DEVICE_ID_BROADCAST || Some(msg.device_id) == self.info.read().await.device_id {
       match msg.clone().msg {
@@ -262,6 +265,10 @@ impl Device for FirmwareUpgradeDevice {
   }
 }
 
+pub trait FirmwareValidatingDevice {
+  fn validate_firmware(info: &DeviceInfo, buf: &[u8]) -> anyhow::Result<()>;
+}
+
 #[async_trait::async_trait]
 pub trait VersionGatedDevice : RootDevice + Sized + Sync + 'static {
   fn validate_version(version: Option<String>) -> anyhow::Result<()>;
@@ -319,7 +326,7 @@ impl RootDevice for OldVersionDevice {
 impl OldVersionDevice {
   async fn start_field_upgrade(&self) -> anyhow::Result<()> {
     let serial = self.grapple_device.info.read().await.require_serial()?;
-    FirmwareUpgradeDevice::start_field_upgrade(&self.grapple_device.sender, serial).await
+    start_field_upgrade(&self.grapple_device.sender, serial).await
   }
 
   async fn get_error(&self) -> anyhow::Result<String> {
diff --git a/grapple-hook/src-tauri/tauri.conf.json b/grapple-hook/src-tauri/tauri.conf.json
index dd916db..c116ad2 100644
--- a/grapple-hook/src-tauri/tauri.conf.json
+++ b/grapple-hook/src-tauri/tauri.conf.json
@@ -8,7 +8,7 @@
   },
   "package": {
     "productName": "GrappleHook",
-    "version": "24.0.0"
+    "version": "24.0.1"
   },
   "tauri": {
     "allowlist": {