diff --git a/common/protob/messages-solana.proto b/common/protob/messages-solana.proto
index d62f07e296..7acffccdef 100644
--- a/common/protob/messages-solana.proto
+++ b/common/protob/messages-solana.proto
@@ -41,3 +41,23 @@ message SolanaGetAddress {
 message SolanaAddress {
     required string address = 1; // Solana address as Base58 encoded string
 }
+
+/**
+ * Request: Ask device to sign a Solana transaction
+ * @start
+ * @next SolanaSignedTx
+ * @next Failure
+ */
+message SolanaSignTx {
+    repeated uint32 signer_path_n = 1;     // BIP-32 path to derive the key to sign with
+    required bytes serialized_tx = 2;  // serialized tx to be signed
+}
+
+/**
+ * Response: Contains the hash of the signed transaction and the signature
+ * @end
+ */
+message SolanaSignedTx {
+    required bytes serialized_tx = 1;   // the tx which has been signed (the same data which was passed to SolanaSignTx)
+    required bytes signature = 2;    // tx signature
+}
diff --git a/common/protob/messages.proto b/common/protob/messages.proto
index a3350143d4..52e9884e6b 100644
--- a/common/protob/messages.proto
+++ b/common/protob/messages.proto
@@ -365,4 +365,6 @@ enum MessageType {
     MessageType_SolanaPublicKey = 901 [(wire_out) = true];
     MessageType_SolanaGetAddress = 902 [(wire_in) = true];
     MessageType_SolanaAddress = 903 [(wire_out) = true];
+    MessageType_SolanaSignTx = 904 [(wire_in) = true];
+    MessageType_SolanaSignedTx = 905 [(wire_out) = true];
 }
diff --git a/core/src/trezor/enums/MessageType.py b/core/src/trezor/enums/MessageType.py
index 203de339d9..856ca60170 100644
--- a/core/src/trezor/enums/MessageType.py
+++ b/core/src/trezor/enums/MessageType.py
@@ -237,3 +237,5 @@ if not utils.BITCOIN_ONLY:
     SolanaPublicKey = 901
     SolanaGetAddress = 902
     SolanaAddress = 903
+    SolanaSignTx = 904
+    SolanaSignedTx = 905
diff --git a/core/src/trezor/enums/__init__.py b/core/src/trezor/enums/__init__.py
index 5d3e370860..8cfe78cc22 100644
--- a/core/src/trezor/enums/__init__.py
+++ b/core/src/trezor/enums/__init__.py
@@ -255,6 +255,8 @@ if TYPE_CHECKING:
         SolanaPublicKey = 901
         SolanaGetAddress = 902
         SolanaAddress = 903
+        SolanaSignTx = 904
+        SolanaSignedTx = 905
 
     class FailureType(IntEnum):
         UnexpectedMessage = 1
diff --git a/core/src/trezor/messages.py b/core/src/trezor/messages.py
index 482ac2201f..17419fb7f2 100644
--- a/core/src/trezor/messages.py
+++ b/core/src/trezor/messages.py
@@ -5164,6 +5164,38 @@ if TYPE_CHECKING:
         def is_type_of(cls, msg: Any) -> TypeGuard["SolanaAddress"]:
             return isinstance(msg, cls)
 
+    class SolanaSignTx(protobuf.MessageType):
+        signer_path_n: "list[int]"
+        serialized_tx: "bytes"
+
+        def __init__(
+            self,
+            *,
+            serialized_tx: "bytes",
+            signer_path_n: "list[int] | None" = None,
+        ) -> None:
+            pass
+
+        @classmethod
+        def is_type_of(cls, msg: Any) -> TypeGuard["SolanaSignTx"]:
+            return isinstance(msg, cls)
+
+    class SolanaSignedTx(protobuf.MessageType):
+        serialized_tx: "bytes"
+        signature: "bytes"
+
+        def __init__(
+            self,
+            *,
+            serialized_tx: "bytes",
+            signature: "bytes",
+        ) -> None:
+            pass
+
+        @classmethod
+        def is_type_of(cls, msg: Any) -> TypeGuard["SolanaSignedTx"]:
+            return isinstance(msg, cls)
+
     class StellarAsset(protobuf.MessageType):
         type: "StellarAssetType"
         code: "str | None"
diff --git a/python/src/trezorlib/messages.py b/python/src/trezorlib/messages.py
index 19bbf2d516..3cbc9febdb 100644
--- a/python/src/trezorlib/messages.py
+++ b/python/src/trezorlib/messages.py
@@ -263,6 +263,8 @@ class MessageType(IntEnum):
     SolanaPublicKey = 901
     SolanaGetAddress = 902
     SolanaAddress = 903
+    SolanaSignTx = 904
+    SolanaSignedTx = 905
 
 
 class FailureType(IntEnum):
@@ -6588,6 +6590,40 @@ class SolanaAddress(protobuf.MessageType):
         self.address = address
 
 
+class SolanaSignTx(protobuf.MessageType):
+    MESSAGE_WIRE_TYPE = 904
+    FIELDS = {
+        1: protobuf.Field("signer_path_n", "uint32", repeated=True, required=False, default=None),
+        2: protobuf.Field("serialized_tx", "bytes", repeated=False, required=True),
+    }
+
+    def __init__(
+        self,
+        *,
+        serialized_tx: "bytes",
+        signer_path_n: Optional[Sequence["int"]] = None,
+    ) -> None:
+        self.signer_path_n: Sequence["int"] = signer_path_n if signer_path_n is not None else []
+        self.serialized_tx = serialized_tx
+
+
+class SolanaSignedTx(protobuf.MessageType):
+    MESSAGE_WIRE_TYPE = 905
+    FIELDS = {
+        1: protobuf.Field("serialized_tx", "bytes", repeated=False, required=True),
+        2: protobuf.Field("signature", "bytes", repeated=False, required=True),
+    }
+
+    def __init__(
+        self,
+        *,
+        serialized_tx: "bytes",
+        signature: "bytes",
+    ) -> None:
+        self.serialized_tx = serialized_tx
+        self.signature = signature
+
+
 class StellarAsset(protobuf.MessageType):
     MESSAGE_WIRE_TYPE = None
     FIELDS = {