diff --git a/docs/en/app/m5iot_kit.md b/docs/en/app/m5iot_kit.md
index 8aac97c6..372c8bd2 100644
--- a/docs/en/app/m5iot_kit.md
+++ b/docs/en/app/m5iot_kit.md
@@ -34,7 +34,7 @@
- 1x **M5IotKit** learning board
- 1x Power Aapter
-- 1x Dupont cable set
+- 15x breadboard cable
-
## Specification
diff --git a/docs/en/unit/m5camera.md b/docs/en/unit/m5camera.md
index 6c035bc7..6da1b791 100644
--- a/docs/en/unit/m5camera.md
+++ b/docs/en/unit/m5camera.md
@@ -35,8 +35,6 @@ The hardware also comes with some reserved weld pad, just in case you want put t
-This Unit reserves the weld of the 9-axis gyroscope (MPU6050), Temperature and humidity pressure sensor (BME280) and **Digital silicon microphone (SPM1423)**. If you need those devices, you can Self-weld them or purchase those version thraightly. Additionally, M5Camera also reserves the weld of battery.
-
**Note: M5Camera is named differently when different hardware is selected. They follow the rules below.**
*M5Camera_#_#... means optional hardware name follows "M5Camera".*
diff --git a/docs/en/unit/m5camera_f.md b/docs/en/unit/m5camera_f.md
index afaf7b78..0567c964 100644
--- a/docs/en/unit/m5camera_f.md
+++ b/docs/en/unit/m5camera_f.md
@@ -28,7 +28,6 @@ The hardware also comes with some reserved weld pad, just in case you want put t

-This Unit reserves the weld of the 9-axis gyroscope (MPU6050), Temperature and humidity pressure sensor (BME280) and **Digital silicon microphone (SPM1423)**. If you need those devices, you can Self-weld them or purchase those version thraightly. Additionally, M5CameraF also reserves the weld of battery. The size of the battery that can be accommodated in the case corresponds to a battery capacity of **80mAh**.
**Note: M5CameraF is named differently when different hardware is selected. They follow the rules below.**
diff --git a/docs/en/unit/m5camera_x.md b/docs/en/unit/m5camera_x.md
index d0442579..351a2e1e 100644
--- a/docs/en/unit/m5camera_x.md
+++ b/docs/en/unit/m5camera_x.md
@@ -34,8 +34,6 @@ The hardware also comes with some reserved weld pad, just in case you want put t
-This Unit reserves the weld of the 9-axis gyroscope (MPU6050), Temperature and humidity pressure sensor (BME280) and **Digital silicon microphone (SPM1423)**. If you need those devices, you can Self-weld them or purchase those version thraightly. Additionally, M5Camera also reserves the weld of battery.
-
## Product Features
- ESP32 specifications
diff --git a/docs/en/unit/tof.md b/docs/en/unit/tof.md
index 323c681b..c65a3974 100644
--- a/docs/en/unit/tof.md
+++ b/docs/en/unit/tof.md
@@ -15,14 +15,13 @@ This unit integrated a distance measuring sensor VL53L0x providing accurate dist
This unit comunicates with M5Core via I2C(0x29).
-*Noitce: If you found TOF performance unstable or you up for better using experience,you might have old-version hardware PCB board, Following will teach you how to fix the PCB board*
+*Noitce: If you found TOF performance unstable, means what you have could be the old-version hardware PCB board, Following will teach you how to fix it*
-- Disassembling TOF and Check the PCB board, if you see it like this , means it is the new version.
+- Disassembling TOF and Check the PCB board, if you see it like this, means it is the NEW(fixed) version.
-- If not, take off the two MOSFET (AO3400A), and connect SCL,SDA directly to VL53L0x. Wire pattern refer to the photo above.
+- If not, take off the two MOSFETs (AO3400A), and connect SCL,SDA from GROVE directly to SCL,SDA on VL53L0x. See the above picture for wiring.
-
-- In this pattern, make sure you use the 3.3V on SDA and SCL, M5Core GROVE provide 3.3V to data pins, 5V to power pin. only 3.3v allowed on VL53L0x.
-
+- In this case, make sure you use the 3.3V on SDA and SCL, M5Core GROVE provide 3.3V to data pins, 5V to power pin. only 3.3v allowed on VL53L0x.
## Product Features