ACER AT2645 - AT2646 - LCD TV - FIRMWARE UPGRADE PROCEDURE

UPGRADE FIRMWARE

• Install USB driver to your computer from the ISP board USB Driver file.  ISP board USB driver include three files:

1. PL-2303 Driver InstallerV2021.exe
2. ser2pl.sys
3. UTS2pl.sys

Install PL-2303 Driver InstallerV2021.exe.  Push "Next".

• Push "Finish".

• ser2pl.sys & UTS2pl.sys two files should copy to C:\WINDOWS\system32\drivers & replace original files.

Connect to ISP Board.

• Use USB port connecting PC & MT537x (or MT5335) Board via ISP board(Code number: 715G537XL2).
• USB Cable
• Use Desktop PC or Notebook USB Port.

• Open the MtkTool to Load .bin file (Example: F3_dbg_image.bin) & Set Auto Set Flash BaudRate

• Set COM port resource that used by USB Port.

• Set Baud rate 115200 & High speed item Enable. & MT537x(MT5335).

• Click "Upgrade" button.(Waiting for "Finished!" message.)

• V. Main board Power Off _ On.