diff --git a/patch_v2/meowpanel/meowpanel b/patch_v2/meowpanel/meowpanel
index dfb9143..d53e301 100755
Binary files a/patch_v2/meowpanel/meowpanel and b/patch_v2/meowpanel/meowpanel differ
diff --git a/patch_v2/meowpanel/meowpanel.c b/patch_v2/meowpanel/meowpanel.c
index e1c6da5..7520476 100644
--- a/patch_v2/meowpanel/meowpanel.c
+++ b/patch_v2/meowpanel/meowpanel.c
@@ -62,7 +62,8 @@
 #define LOGS_DIR           "/usr/data/mnt/sd_0/MeowOS/logs"
 #define PERF_SOCK          "/usr/data/meow_perf.sock"
 #define POWER_SOCK         "/usr/data/meow_power.sock"
-#define NYAI_PATH          "/usr/data/mnt/sd_0/MeowOS/opt/bin/nyai"
+#define NYAI_PATH          "/usr/bin/nyai"                                    /* 固件内置（权威） */
+#define NYAI_PATH_CARD     "/usr/data/mnt/sd_0/MeowOS/opt/bin/nyai"           /* 旧卡上路径（回退） */
 #define BOOT_DEFAULT_FILE  "/data/meow_boot_default"
 #define VERSION_FILE       "/etc/meowos_version"
 #define HOSTNAME_FILE      ""
@@ -2477,10 +2478,17 @@ static int multipart_extract_file(const req_t *r, const char *outpath)
     return -1;
 }
 
+static const char *nyai_bin(void)
+{
+    /* nyai 已进固件（/usr/bin，权威）；旧版固件回退卡上 MeowOS/opt/bin */
+    if (!access(NYAI_PATH, X_OK)) return NYAI_PATH;
+    return NYAI_PATH_CARD;
+}
+
 static int api_apps_install(int sock, const req_t *r)
 {
     if (!tf_present()) return send_err(sock, 503, "NO_CARD", "未识别到 TF 卡");
-    if (!access(NYAI_PATH, X_OK)) { /* ok */ }
+    if (access(nyai_bin(), X_OK) < 0) return send_err(sock, 500, "INTERNAL", "nyai 不可用（固件与卡上均无）");
     char mpkpath[1024];
     int ispath = 0;
     if (strncasecmp(r->content_type, "multipart/form-data", 19) != 0) {
@@ -2507,7 +2515,7 @@ static int api_apps_install(int sock, const req_t *r)
     }
     if (access(mpkpath, R_OK) < 0) return send_err(sock, 404, "NOT_FOUND", ".mpk 文件不存在");
     char cmd[1400];
-    snprintf(cmd, sizeof cmd, "PATH=/bin:/sbin:/usr/bin:/usr/sbin '%s' install '%s' 2>&1", NYAI_PATH, mpkpath);
+    snprintf(cmd, sizeof cmd, "PATH=/bin:/sbin:/usr/bin:/usr/sbin '%s' install '%s' 2>&1", nyai_bin(), mpkpath);
     char out[4096];
     int code = run_cmd(cmd, out, sizeof out);
     if (code != 0) return send_err(sock, 422, "UNSUPPORTED", out[0] ? out : "nyai install 失败");
@@ -2553,7 +2561,7 @@ static int api_apps_export(int sock, const char *pkg)
     snprintf(tmp, sizeof tmp, "%s/tmp/%s.mpk", TF_CARD_DIR, pkg);
     unlink(tmp);
     char cmd[1400];
-    snprintf(cmd, sizeof cmd, "PATH=/bin:/sbin:/usr/bin:/usr/sbin '%s' export '%s' '%s' 2>&1", NYAI_PATH, pkg, tmp);
+    snprintf(cmd, sizeof cmd, "PATH=/bin:/sbin:/usr/bin:/usr/sbin '%s' export '%s' '%s' 2>&1", nyai_bin(), pkg, tmp);
     char out[1024];
     int code = run_cmd(cmd, out, sizeof out);
     if (code != 0 || access(tmp, R_OK) < 0) return send_err(sock, 500, "INTERNAL", out[0] ? out : "nyai export 失败");
@@ -2570,7 +2578,7 @@ static int api_apps_remove(int sock, const char *pkg, const req_t *r)
     if (r->query[0]) qparam(r->query, "purge", purgebuf, sizeof purgebuf);
     int use_purge = atoi(purgebuf);
     char cmd[1400];
-    snprintf(cmd, sizeof cmd, "PATH=/bin:/sbin:/usr/bin:/usr/sbin '%s' remove '%s'%s 2>&1", NYAI_PATH, pkg, use_purge ? " --purge" : "");
+    snprintf(cmd, sizeof cmd, "PATH=/bin:/sbin:/usr/bin:/usr/sbin '%s' remove '%s'%s 2>&1", nyai_bin(), pkg, use_purge ? " --purge" : "");
     char out[1024];
     int code = run_cmd(cmd, out, sizeof out);
     if (code != 0) return send_err(sock, 500, "INTERNAL", out[0] ? out : "nyai remove 失败");