diff --git a/include/data.cpp b/include/data.cpp
index b6a2ae8..7f93dc6 100644
--- a/include/data.cpp
+++ b/include/data.cpp
@@ -29,6 +29,7 @@ const uint8_t rd_mouse::_c_brightness_min = 0x01, rd_mouse::_c_brightness_max =
 const uint8_t rd_mouse::_c_speed_min = 0x01, rd_mouse::_c_speed_max = 0x08;
 const uint8_t rd_mouse::_c_level_min = 0, rd_mouse::_c_level_max = 4;
 const uint8_t rd_mouse::_c_dpi_min = 0x04, rd_mouse::_c_dpi_max = 0x8c;
+const uint8_t rd_mouse::_c_dpi_2_min = 0x00, rd_mouse::_c_dpi_2_max = 0x01;
 
 //name → keycode
 std::map< std::string, std::array<uint8_t, 3> > rd_mouse::_c_keycodes = {
diff --git a/include/m908/constructor.cpp b/include/m908/constructor.cpp
index 56169b2..6071963 100644
--- a/include/m908/constructor.cpp
+++ b/include/m908/constructor.cpp
@@ -21,15 +21,19 @@
 // Constructor, set the default settings
 mouse_m908::mouse_m908(){
 	
-	//default settings
+	// default settings
 	_s_profile = profile_1;
 	_s_scrollspeeds.fill( 0x01 );
 	_s_lightmodes.fill( lightmode_static );
 	_s_colors.fill( {0xff, 0xff, 0xff} );
 	_s_brightness_levels.fill( 0x03 );
 	_s_speed_levels.fill( 0x08 );
+	
+	// dpi
 	_s_dpi_enabled.fill( {true, true, true, true, true} );
-	_s_dpi_levels.fill( {0x04, 0x16, 0x2d, 0x43, 0x8c} );
+	_s_dpi_levels.fill( {{ {0x04, 0x00}, {0x16, 0x00}, {0x2d, 0x00}, {0x43, 0x00}, {0x8c, 0x00} }} );
+	
+	// button mapping
 	for( int i = 0; i < 5; i++ ){
 		for( int j = 0; j < 20; j++ ){
 			_s_keymap_data[i][j][0] = _c_data_settings_3[35+(20*i)+j][8];
@@ -38,7 +42,10 @@ mouse_m908::mouse_m908(){
 			_s_keymap_data[i][j][3] = _c_data_settings_3[35+(20*i)+j][11];
 		}
 	}
+	
 	_s_report_rates.fill( r_125Hz );
+	
+	// macros
 	int count = 0;
 	for( auto &i : _s_macro_data ){
 		std::copy(std::begin(_c_data_macros_2), std::end(_c_data_macros_2), std::begin(i));
diff --git a/include/m908/getters.cpp b/include/m908/getters.cpp
index 748eed0..9732163 100644
--- a/include/m908/getters.cpp
+++ b/include/m908/getters.cpp
@@ -46,9 +46,9 @@ bool mouse_m908::get_dpi_enable( rd_profile profile, int level ){
 	return _s_dpi_enabled[profile][level];
 }
 
-uint8_t mouse_m908::get_dpi( rd_profile profile, int level ){
+/*uint8_t mouse_m908::get_dpi( rd_profile profile, int level ){ TODO! rewrite
 	return _s_dpi_levels[profile][level];
-}
+}*/
 
 mouse_m908::rd_report_rate mouse_m908::get_report_rate( rd_profile profile ){
 	return _s_report_rates[profile];
diff --git a/include/m908/helpers.cpp b/include/m908/helpers.cpp
index a4bbe6f..8d04156 100644
--- a/include/m908/helpers.cpp
+++ b/include/m908/helpers.cpp
@@ -105,13 +105,15 @@ int mouse_m908::print_settings( std::ostream& output ){
 		output << "\n# DPI settings\n";
 		for( int j = 1; j < 6; j++ ){
 			
-			if( _s_dpi_enabled[i-1][j] )
+			if( _s_dpi_enabled[i-1][j] ) // TODO! check if [j] → [j-1]
 				output << "dpi" << j << "_enable=1\n";
 			else
 				output << "dpi" << j << "_enable=0\n";
 			
+			// DPI value, TODO! lookup real value
 			output << std::setfill('0') << std::setw(2) << std::hex;
-			output << "dpi" << j << "=" << (int)_s_dpi_levels[i-1][j-1] << "\n";
+			output << "dpi" << j << "=0x";
+			output << std::setw(2) << (int)_s_dpi_levels[i-1][j-1][0] << std::setw(2) << (int)_s_dpi_levels[i-1][j-1][1] << "\n";
 			output << std::setfill(' ') << std::setw(0) << std::dec;
 		}
 		
diff --git a/include/m908/mouse_m908.h b/include/m908/mouse_m908.h
index c74b372..1245359 100644
--- a/include/m908/mouse_m908.h
+++ b/include/m908/mouse_m908.h
@@ -112,9 +112,10 @@ class mouse_m908 : public rd_mouse{
 		 * \see _c_dpi_max
 		 * \see _c_level_min
 		 * \see _c_level_max
-		 * \return 0 if successful, 1 if out of bounds
+		 * \return 0 if successful, 1 if out of bounds or invalid dpi
 		 */
-		int set_dpi( rd_profile profile, int level, uint8_t dpi );
+		int set_dpi( rd_profile profile, int level, std::string dpi );
+		//int set_dpi( rd_profile profile, int level, uint8_t dpi ); //TODO! rewrite
 		
 		/** \brief Set a mapping for a button for the specified profile
 		 * \param mapping 4 bytes for the usb data packets
@@ -168,7 +169,7 @@ class mouse_m908 : public rd_mouse{
 		/// Get dpi level enabled/disabled status of specified profile
 		bool get_dpi_enable( rd_profile profile, int level );
 		/// Get dpi value of specified level and profile
-		uint8_t get_dpi( rd_profile profile, int level );
+		//uint8_t get_dpi( rd_profile profile, int level ); //TODO! rewrite
 		/// Get USB poll rate of specified profile
 		rd_report_rate get_report_rate( rd_profile profile );
 		/// Get macro repeat number of specified profile
@@ -201,7 +202,7 @@ class mouse_m908 : public rd_mouse{
 		/** \brief Write the settings (leds, button mapping, dpi, etc.) to the mouse
 		 * \return 0 if successful
 		 */
-		int write_settings();
+		int write_settings(); //TODO!
 		
 		/** \brief Write a macro to the mouse
 		 * \return 0 if successful
@@ -232,7 +233,7 @@ class mouse_m908 : public rd_mouse{
 		int close_mouse();
 		
 		/// Print the current configuration in .ini format to output
-		int print_settings( std::ostream& output );
+		int print_settings( std::ostream& output ); //TODO!
 		
 		
 		
@@ -274,7 +275,8 @@ class mouse_m908 : public rd_mouse{
 		std::array<uint8_t, 5> _s_brightness_levels;
 		std::array<uint8_t, 5> _s_speed_levels;
 		std::array<std::array<bool, 5>, 5> _s_dpi_enabled;
-		std::array<std::array<uint8_t, 5>, 5> _s_dpi_levels;
+		//std::array<std::array<uint8_t, 5>, 5> _s_dpi_levels; //TODO! remove
+		std::array<std::array<std::array<uint8_t, 2>, 5>, 5> _s_dpi_levels;
 		std::array<std::array<std::array<uint8_t, 4>, 20>, 5> _s_keymap_data;
 		std::array<rd_report_rate, 5> _s_report_rates;
 		std::array<std::array<uint8_t, 256>, 15> _s_macro_data;
diff --git a/include/m908/readers.cpp b/include/m908/readers.cpp
index ee02b9f..5d79166 100644
--- a/include/m908/readers.cpp
+++ b/include/m908/readers.cpp
@@ -264,9 +264,14 @@ int mouse_m908::read_and_print_settings( std::ostream& output ){
 		output << "\n# DPI settings\n";
 		output << "# Active dpi level for this profile: " << (int)buffer_in2[i-1][8]+1 << "\n";
 		for( int j = 1; j < 6; j++ ){
+			
+			// DPI enable
 			output << "dpi" << j << "_enable=" << (int)buffer_in2[i-1][4+(6*j)] << "\n";
+			
+			// DPI value, TODO! lookup real value
 			output << std::setfill('0') << std::setw(2) << std::hex;
-			output << "dpi" << j << "=" << (int)buffer_in2[i-1][5+(6*j)] << "\n";
+			output << "dpi" << j << "=0x";
+			output << std::setw(2) << (int)buffer_in2[i-1][5+(6*j)] << std::setw(2) << (int)buffer_in2[i-1][6+(6*j)] << "\n";
 			output << std::setfill(' ') << std::setw(0) << std::dec;
 		}
 		
@@ -572,7 +577,8 @@ int mouse_m908::read_settings(){
 			else
 				_s_dpi_enabled[i-1][j-1] = false;
 			
-			_s_dpi_levels[i-1][j-1] = buffer_in2[i-1][5+(6*j)];
+			_s_dpi_levels[i-1][j-1][0] = buffer_in2[i-1][5+(6*j)];
+			_s_dpi_levels[i-1][j-1][1] = buffer_in2[i-1][6+(6*j)];
 			
 		}
 		
diff --git a/include/m908/setters.cpp b/include/m908/setters.cpp
index 20e1d53..6fbea08 100644
--- a/include/m908/setters.cpp
+++ b/include/m908/setters.cpp
@@ -95,15 +95,28 @@ int mouse_m908::set_dpi_enable( rd_profile profile, int level, bool enabled ){
 	return 0;
 }
 
-int mouse_m908::set_dpi( rd_profile profile, int level, uint8_t dpi ){
+int mouse_m908::set_dpi( rd_profile profile, int level, std::string dpi ){
 	
-	//check bounds
-	if( dpi < _c_dpi_min || dpi > _c_dpi_max ){
-		return 1;
+	// check format: 0xABCD (raw bytes)
+	if( std::regex_match( dpi, std::regex("0x[[:xdigit:]]{4}") ) ){
+
+		uint8_t b0 = (uint8_t)stoi( dpi.substr(2,2), 0, 16 );
+		uint8_t b1 = (uint8_t)stoi( dpi.substr(4,2), 0, 16 );
+
+		//check bounds
+		if( b0 < _c_dpi_min || b0 > _c_dpi_max || b1 < _c_dpi_2_min || b1 > _c_dpi_2_max )
+			return 1;
+
+		_s_dpi_levels[profile][level][0] = b0;
+		_s_dpi_levels[profile][level][1] = b1;
+		
+		return 0;
+		
 	}
 	
-	_s_dpi_levels[profile][level] = dpi;
-	return 0;
+	// TODO! format: real dpi values
+	
+	return 1;
 }
 
 int mouse_m908::set_key_mapping( rd_profile profile, int key, std::array<uint8_t, 4> mapping ){
diff --git a/include/m908/writers.cpp b/include/m908/writers.cpp
index 5ed72c4..efc569b 100644
--- a/include/m908/writers.cpp
+++ b/include/m908/writers.cpp
@@ -120,7 +120,8 @@ int mouse_m908::write_settings(){
 	for( int i = 0; i < 5; i++ ){
 		for( int j = 0; j < 5; j++ ){
 			buffer3[7+(5*i)+j][8] = _s_dpi_enabled[j][i];
-			buffer3[7+(5*i)+j][9] = _s_dpi_levels[j][i];
+			buffer3[7+(5*i)+j][9] = _s_dpi_levels[j][i][0];
+			buffer3[7+(5*i)+j][10] = _s_dpi_levels[j][i][1];
 		}
 	}
 	//key mapping
@@ -130,7 +131,6 @@ int mouse_m908::write_settings(){
 			buffer3[35+(20*i)+j][9] = _s_keymap_data[i][j][1];
 			buffer3[35+(20*i)+j][10] = _s_keymap_data[i][j][2];
 			buffer3[35+(20*i)+j][11] = _s_keymap_data[i][j][3];
-			//std::cout << (int)_s_keymap_data[i][j][0] << " " << (int)_s_keymap_data[i][j][1] << " " << (int)_s_keymap_data[i][j][2] << " " << (int)_s_keymap_data[i][j][3] << "\n";
 		}
 	}
 	//usb report rate
diff --git a/include/rd_mouse.h b/include/rd_mouse.h
index 5b5494f..89bf2bb 100644
--- a/include/rd_mouse.h
+++ b/include/rd_mouse.h
@@ -96,6 +96,7 @@ class rd_mouse{
 		static const uint8_t _c_speed_min, _c_speed_max;
 		static const uint8_t _c_level_min, _c_level_max;
 		static const uint8_t _c_dpi_min, _c_dpi_max;
+		static const uint8_t _c_dpi_2_min, _c_dpi_2_max;
 		
 		//mapping of button names to values
 		/// Values/keycodes of mouse buttons and special button functions
diff --git a/mouse_m908.cpp b/mouse_m908.cpp
index 0475742..5908fdf 100644
--- a/mouse_m908.cpp
+++ b/mouse_m908.cpp
@@ -360,11 +360,13 @@ std::string string_dump, std::string string_read ){
 				if( pt.get("profile"+std::to_string(i)+".dpi4_enable", "") == "0" ){ m.set_dpi_enable( profile_lut[i-1], 3, false ); }
 				if( pt.get("profile"+std::to_string(i)+".dpi5_enable", "") == "0" ){ m.set_dpi_enable( profile_lut[i-1], 4, false ); }
 				
+				/* TODO! parse config
 				if( pt.get("profile"+std::to_string(i)+".dpi1", "").length() != 0 ){ m.set_dpi( profile_lut[i-1], 0, (uint8_t)stoi( pt.get("profile"+std::to_string(i)+".dpi1", ""), 0, 16) );	}
 				if( pt.get("profile"+std::to_string(i)+".dpi2", "").length() != 0 ){ m.set_dpi( profile_lut[i-1], 1, (uint8_t)stoi( pt.get("profile"+std::to_string(i)+".dpi2", ""), 0, 16) );	}
 				if( pt.get("profile"+std::to_string(i)+".dpi3", "").length() != 0 ){ m.set_dpi( profile_lut[i-1], 2, (uint8_t)stoi( pt.get("profile"+std::to_string(i)+".dpi3", ""), 0, 16) );	}
 				if( pt.get("profile"+std::to_string(i)+".dpi4", "").length() != 0 ){ m.set_dpi( profile_lut[i-1], 3, (uint8_t)stoi( pt.get("profile"+std::to_string(i)+".dpi4", ""), 0, 16) );	}
 				if( pt.get("profile"+std::to_string(i)+".dpi5", "").length() != 0 ){ m.set_dpi( profile_lut[i-1], 4, (uint8_t)stoi( pt.get("profile"+std::to_string(i)+".dpi5", ""), 0, 16) );	}
+				*/
 				
 				if( pt.get("profile"+std::to_string(i)+".report_rate", "") == "125" ){ m.set_report_rate( profile_lut[i-1], mouse_m908::r_125Hz ); }
 				if( pt.get("profile"+std::to_string(i)+".report_rate", "") == "250" ){ m.set_report_rate( profile_lut[i-1], mouse_m908::r_250Hz ); }