add stickc battery protection mode

docs/en/1515/ap.md

@@ -14,8 +14,11 @@ Aluminum profiles are most commonly used across industrial automation applicatio
 
 As more advanced,  together with the  Aluminium-Profile accessories (connectors, slide-drops ...) and the Aluminium-Profile drilling machine which allows Pick-Cut-Drill,  you can even DIY your own framework. Furthermore, the add-on features of M5Stack system will bring your work into another level, you will benefit every step of the way in your IIoT project, all the way from structure prototyping, programming, network establishing, debugging, to the final productization.
 
+<img src="assets/img/product_pics/1515/corner/1515_corner_03.jpg" width="30%" height="30%">
 
-
+*Notice: We don't offer tapping Aluminium-Profile by default, in order to make the M4 screw fixed in the Aluminium-Profile, you need to tap the Aluminium-Profile with tapping machine,please refer to the picture below*
+<img src="assets/img/product_pics/1515/ap/ap_ap_01.jpg" width="30%" height="30%">
+<img src="assets/img/product_pics/1515/ap/ap_ap_01.jpg" width="30%" height="30%">
 
 ## Product Features
 - 15mm * 15mm

docs/en/1515/connectors.md

@@ -38,6 +38,12 @@ These are different types of **1515 Aluminium-Profile** accessories, cataloged b
 
 ***
 
+
+*Notice: We don't offer tapping Aluminium-Profile by default, in order to make the M4 screw fixed in the Aluminium-Profile, you need to tap the Aluminium-Profile with tapping machine,please refer to the picture below*
+<img src="assets/img/product_pics/1515/ap/ap_ap_01.jpg" width="30%" height="30%">
+<img src="assets/img/product_pics/1515/ap/ap_ap_01.jpg" width="30%" height="30%">
+
+
 ## Product Features
 - 1515 Aluminum Profile compatible
 

docs/en/1515/corner.md

@@ -12,6 +12,12 @@ This **1515 Corner** is a type of connector for 1515 Aluminum Extrusion. It coul
 
 <img src="assets/img/product_pics/1515/corner/1515_corner_02.jpg" width="30%" height="30%"><img src="assets/img/product_pics/1515/corner/1515_corner_03.jpg" width="30%" height="30%">
 
+
+*Notice: We don't offer tapping Aluminium-Profile by default, in order to make the M4 screw fixed in the Aluminium-Profile, you need to tap the Aluminium-Profile with tapping machine,please refer to the picture below*
+<img src="assets/img/product_pics/1515/ap/ap_ap_01.jpg" width="30%" height="30%">
+<img src="assets/img/product_pics/1515/ap/ap_ap_01.jpg" width="30%" height="30%">
+
+
 ## Product Features
 - 90-degree 3-dimension connector. 
 - 1515 Aluminum Profile compatible

docs/en/core/m5stickc.md

@@ -26,6 +26,8 @@ M5stickC is one of the core devices in M5Stack product series which is built in
 * Baudrate supported by M5StickC: 1200 ~115200, 250K, 500K, 750K, 1500K
 
 * Only Orange type is available for now
+  
+* If you find out your M5StickC couldn't power on without a USB in, it might because the battery enter the battery protection mode, caused by low-volatge, over-charged, ver-heat ... To exit the battery protection mode, please keep charging the battery for around 40 mins. Our team is working on the solution.
 
 <img src="assets/img/product_pics/core/minicore/m5stickc/m5stickc_02.png" alt="gray_02" width=50% height=50%><img src="assets/img/product_pics/core/minicore/m5stickc/m5stickc_08.png" alt="gray_02" width=50% height=50%>
 

docs/en/unit/esp32cam.md

@@ -22,7 +22,6 @@ The hardware also comes with some reserved weld pad, just in case you want put t
 - 9-axis gyroscope (MPU6050)
 - pressure sensor (BME280)
 - **analog MIC (SPQ2410)**
-- Battery socket
 
 **ESP32CAM** is the most popular pattern among the M5 camera series so far. If you need more storage please check M5Camera. If you need fisheye lens, please check M5CameraF.
 

docs/en/unit/m5camera.md

@@ -22,7 +22,6 @@ The hardware also comes with some reserved weld pad, just in case you want put t
 - 9-axis gyroscope (MPU6050)
 - pressure sensor (BME280)
 - **Analog MIC (SPQ2410)**
-- Battery socket
 
 <img src="assets/img/product_pics/unit/unit_m5camera_05.png" width="100%" height="100%"><img src="assets/img/product_pics/unit/unit_m5camera_06.png" width="100%" height="100%">
 

docs/en/unit/m5camera_f.md

@@ -24,7 +24,6 @@ The hardware also comes with some reserved weld pad, just in case you want put t
 - 9-axis gyroscope (MPU6050)
 - pressure sensor (BME280)
 - **Digital silicon microphone (SPM1423)**
-- Battery socket
 
 <img src="assets/img/product_pics/unit/unit_m5camera_f_02.png" width="100%" height="100%"><img src="assets/img/product_pics/unit/unit_m5camera_f_03.png" width="100%" height="100%">
 
@@ -63,7 +62,7 @@ This Unit reserves the weld of the 9-axis gyroscope (MPU6050), Temperature and h
     - Scan Mode: Progressive
 - Camera specifications
     + Field of View : **160 degree**
-    + Maxmium Pixel: 200W
+    + Maxmium Pixel: 2-Mega
 - Sensor best resolution: 1600 * 1200
 - Size：23.5 × 48 × 23.5mm