Grundig 22VLE4300 BA Service Manual page 108

and re-install software. If this does not work, we should try to install software using
another USB memory.
On the chassis, there might be a problem arising from components or soldering. On
the PC, there might be problem arising from USB hardware or driver.
The latest version of ISP Utility should be used. MStar Debug Tool driver should be
installed. In "Config", I2C Speed should have the correct value. In "Device", "WP Pin
pull to high during ISP" should be selected. If not selected, the software may not be
updated even though it seems to be installed. If Device type is not recognized even
after you perform the steps above, turn off/on TV from the mains.
!!! IMPORTANT NOTE
1) Before software installation, TV's service menu settings, user (customer)
settings, channel list and satellite settings should be stored in an external USB
memory device by means of USB cloning feature (USB cloning-TV to USB);
and these settings should be re-loaded on the relevant TV after software
installation (USB-cloning USB to TV)! To enter this menu, you need to go to
"Cloner configuration" from the service menu and enter the numbers 2, 3, 5, 6
in sequence. Examine Cloner Configuration section in Service menu for
detailed information.
2) Software installation code is changed to ISP_Tool v4.5.2.8.SP.exe in TP-
chassis products. This change aims to prevent erasing CI+ password by
mistake during software installation. In the former software update interface
(V4.4.9.9), CI+ password is deleted from TV if ALL CHIP is selected by
mistake in ERASE DEVICE section. Now, with the new software update
interface v4.5.2.8.SP, a similar problem will not occur.
108 September 2011
TP CHASSIS / TELEVISION