ESP BLE ios APP 连接ESP32时报错

[kelekuangmo]

使用AT命令使ESP32的BLE进入服务端模式并开启扫描，此时通过ios版本的ESP BLE Provisioning软件扫描到esp蓝牙并连接，在连接过程中app报ERROR,Failed to connect with BLE device Check if POP is correct！
log显示如下：
+BLECONN:0,"6d:ba:d4:46:90:25"
+BLECFGMTU:0,517
+READ:0,"6d:ba:d4:46:90:25"
+READ:0,"6d:ba:d4:46:90:25"
+READ:0,"6d:ba:d4:46:90:25"
+READ:0,"6d:ba:d4:46:90:25"
+READ:0,"6d:ba:d4:46:90:25"
+READ:0,"6d:ba:d4:46:90:25"
+BLEDISCONN:0,"6d:ba:d4:46:90:25"