From a5dedec00ab132025e3be51870459433aec3c187 Mon Sep 17 00:00:00 2001
From: MX <10697207+xMasterX@users.noreply.github.com>
Date: Wed, 1 Oct 2025 02:34:46 +0300
Subject: [PATCH] ensure correct byte shifts

---
 .../main/subghz/helpers/subghz_txrx_create_protocol_key.c      | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/applications/main/subghz/helpers/subghz_txrx_create_protocol_key.c b/applications/main/subghz/helpers/subghz_txrx_create_protocol_key.c
index 5a7e07e0e..783273e6b 100644
--- a/applications/main/subghz/helpers/subghz_txrx_create_protocol_key.c
+++ b/applications/main/subghz/helpers/subghz_txrx_create_protocol_key.c
@@ -422,7 +422,8 @@ void subghz_txrx_gen_serial_gangqi(uint64_t* result_key) {
 
     // Add bytesum to the end
     // serial | const_and_button
-    *result_key = (serial << 18) | (const_and_button << 10) | (bytesum << 2);
+    *result_key = ((uint64_t)serial << 18) | ((uint64_t)const_and_button << 10) |
+                  ((uint64_t)bytesum << 2);
 }
 
 void subghz_txrx_gen_key_marantec(uint64_t* result_key) {