diff --git a/EPD/SSD1619.c b/EPD/SSD1619.c
index cad9d9a..6a56655 100644
--- a/EPD/SSD1619.c
+++ b/EPD/SSD1619.c
@@ -94,6 +94,22 @@ static void _setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
     EPD_Write(CMD_RAM_YCOUNT, y % 256, y / 256);
 }
 
+void SSD1619_Dump_LUT(void)
+{
+    uint8_t lut[128];
+
+    // Load LUT
+    SSD1619_Update(0xB1);
+    SSD1619_WaitBusy(200);
+
+    EPD_WriteCmd(CMD_READ_LUT);
+    EPD_ReadData(lut, sizeof(lut));
+
+    NRF_LOG_DEBUG("=== LUT BEGIN ===\n");
+    NRF_LOG_HEXDUMP_DEBUG(lut, sizeof(lut));
+    NRF_LOG_DEBUG("=== LUT END ===\n");
+}
+
 void SSD1619_Init()
 {
     epd_model_t *EPD = epd_get();
@@ -106,6 +122,8 @@ void SSD1619_Init()
     EPD_Write(CMD_BORDER_CTRL, 0x01);
     EPD_Write(CMD_TSENSOR_CTRL, 0x80);
 
+//    SSD1619_Dump_LUT();
+
     _setPartialRamArea(0, 0, EPD->width, EPD->height);
 }
 
diff --git a/EPD/UC8176.c b/EPD/UC8176.c
index af68bf9..49865cb 100644
--- a/EPD/UC8176.c
+++ b/EPD/UC8176.c
@@ -109,6 +109,7 @@ void UC8176_Refresh(void)
 {
     NRF_LOG_DEBUG("[EPD]: refresh begin\n");
     UC8176_PowerOn();
+
     NRF_LOG_DEBUG("[EPD]: temperature: %d\n", UC8176_Read_Temp());
     EPD_WriteCmd(CMD_DRF);
     delay(100);
@@ -131,11 +132,30 @@ static void _setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
               0x01);
 }
 
+void UC8176_Dump_OTP(void)
+{
+    uint8_t data[128];
+
+    UC8176_PowerOn();
+    EPD_Write(CMD_ROTP, 0x00);
+
+    NRF_LOG_DEBUG("=== OTP BEGIN ===\n");
+    for (int i = 0; i < 0xFFF; i += sizeof(data)) {
+        EPD_ReadData(data, sizeof(data));
+        NRF_LOG_HEXDUMP_DEBUG(data, sizeof(data));
+    }
+    NRF_LOG_DEBUG("=== OTP END ===\n");
+
+    UC8176_PowerOff();
+}
+
 void UC8176_Init()
 {
     epd_model_t *EPD = epd_get();
 
     EPD_Reset(HIGH, 10);
+    
+//    UC8176_Dump_OTP();
 
     EPD_Write(CMD_PSR, EPD->bwr ? 0x0F : 0x1F);
     EPD_Write(CMD_CDI, EPD->bwr ? 0x77 : 0x97);
diff --git a/main.c b/main.c
index 5c44249..bdb2d8a 100644
--- a/main.c
+++ b/main.c
@@ -757,6 +757,7 @@ int main(void)
     // Save reset reason.
     m_resetreas = NRF_POWER->RESETREAS;
     NRF_POWER->RESETREAS |= NRF_POWER->RESETREAS;
+    NRF_LOG_DEBUG("== RESET REASON: %d ===\n", m_resetreas);
 
     NRF_LOG_DEBUG("init..\n");