diff --git a/lib/subghz/protocols/came_atomo.c b/lib/subghz/protocols/came_atomo.c
index 747d0d074..d12e5976c 100644
--- a/lib/subghz/protocols/came_atomo.c
+++ b/lib/subghz/protocols/came_atomo.c
@@ -135,7 +135,11 @@ static void
 
     uint8_t pack[8] = {};
 
-    instance->generic.cnt++;
+    if(instance->generic.cnt < 0xFFFF) {
+        instance->generic.cnt++;
+    } else if(instance->generic.cnt >= 0xFFFF) {
+        instance->generic.cnt = 0;
+    }
 
     //Send header
     instance->encoder.upload[index++] =
diff --git a/lib/subghz/protocols/nice_flor_s.c b/lib/subghz/protocols/nice_flor_s.c
index bcc5c7466..6913103bd 100644
--- a/lib/subghz/protocols/nice_flor_s.c
+++ b/lib/subghz/protocols/nice_flor_s.c
@@ -129,7 +129,11 @@ static void subghz_protocol_encoder_nice_flor_s_get_upload(
         instance->encoder.size_upload = size_upload;
     }
 
-    instance->generic.cnt++;
+    if(instance->generic.cnt < 0xFFFF) {
+        instance->generic.cnt++;
+    } else if(instance->generic.cnt >= 0xFFFF) {
+        instance->generic.cnt = 0;
+    }
     uint64_t decrypt = ((uint64_t)instance->generic.serial << 16) | instance->generic.cnt;
     uint64_t enc_part = subghz_protocol_nice_flor_s_encrypt(decrypt, file_name);