HISENSE LHD19W57EU LHD22W57EU Service Mode - Software Upgrade Process

There are two ways to enter service mode to these sets.  One is by using Factory Remote control and the other is by using User's Remote control:
Enter Service Mode, by using Factory Remote Control

• Press "M" button, and enter Factory Mode.
• Press "Menu" button, and enter Factory OSD Menu.
• Press [Ch Up | Ch Dn] button to select the Function Menu, press {Volume Up | Volume Dn} button to adjust the data value to selected item.

Enter Service Mode, by using user's Remote Control

1. Power ON the TV.
2. Press "Menu" button to call up user OSD Menu.
3. Select 'Sound => Balance.
4. Enter {0 => 5 => 3 => 2} in sequence. (If necessary, re-do number keys).
5. Factory OSD will be displayed.

Before adjusting change the desired source.  Different sources have different White Balanc [WB] values.

Factory Menu date varies according to different sources.  In case, changing the factory data by error, choose to "Clear EEPROM" by which can resume default value.

TO CLEAR EEPROM

• Select the button "Clear All"
• Press 'Volume +" button to clear the EEPROM data.
• When the "Clear All" buttons become white, turn OFF the Power.
• Restart TV.

SOFTWARE UPGRADING

• The software is upgraded by a burning tool-Mtk Tool, which can be burn the program file *.bin to the main board of the unit.

Proceedings:

Install the Driver.

Double click the Icon, Install the Driver

Select the default value, the driver will be installed step by step.

# Hardware connecting:
Connect the unit to the PC with a USB-to-jack _4pin_ port cable.  USB port connects the PC, and the 4-pin jack to J3 of the Main Board.

     For the first connecting, the PC will recognize and automatically install USB device.  The process is just like the installation of a mini disk.  
USB Device install:

UPGRADING WITH MtkTool

• MtkTool is a green program need no installation.  It is saved in the folder.  There are '5' folders/files altogether.  
• The MtkTool using log is restored in the MtkLog folder.  It records the running time and date whenever this tool is used.  The log will be a txt file named by the date and time.

     After connecting the TV to PC, double click 'MtkTool.exe' icon, open the MtkTool.  If the following error appears, it means that the related port is not set properly.

     Ignore these errors, click 'confirm' and enter the MtkTool main interface.  See the following picture.

• Flash chip model.
• The port through which the PC communicate with the chip.
• The communicating baud rate.
• The new program file (*.bin) for upgrading.
• Click this button can select the *.bin file to be used for upgrading.
• Click to start upgrading. 

     Open "Device manager" and find which port is connected with the TV.  In the above picture, COM2 is connected to the TV; so, select [COM2] in the MtkTool main interface.  Select the right Baud Rate according to chip model.  For this unit; the chip model is MT537X, select 115200*2.

     Where or not click the 'Auto Set Flash Baud rate' in the 'Window' menu depends on chip type.  If the Flash Cip does not support high speed transport, do not select this option; otherwise, reserve the selected mode.

     Click 'Browse' button (5) and find the upgrading program file and select it.  Press "Upgrade" button to start upgrading.  The following interface will appear on the screen, indicating upgrading successfully.