60PK940-UF, 60PK950-UA (CHASSIS:PU02A) - LG TV Service Manual (repair manual). Page 15

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11. USB  Download  (S/W  Update,
*.epk File Download)
(1)  Put the USB Stick to the USB socket 
(2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is Low,
it didn’t work.
But  your  downloaded  version  is  High,  USB  data  is
automatically detecting
(3) Show the message “Copying files from memory”
(4) Updating is staring.
(5) Updating Completed, The TV will restart automatically.
(6) If  your  TV  is  turned  on,  check  your  updated  version  and
Tool option. (explain the Tool option, next stage)
* If  downloading  version  is  more  high  than  your  TV  have,
TV  can  lost  all  channel  data.  In  this  case,  you  have  to
channel recover. if all channel data is cleared, you didn’t
have a DTV/ATV test on production line.
* After downloading, have to adjust TOOL OPTION again.
(1) Push "IN-START" key in service remote controller.
(2) Select "Tool Option 1" and Push “OK” button.
(3) Punch in the number. (Each model has their number.)
(4) Completed selecting Tool option.
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