AOC 55C2U-DVB Service Manual Download

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Method 2: Insert U disk into TV main board or programming fixture board USB interface , long press VOL+ key, then
power  on  TV  (  main  board  )  ,  after  about  five  seconds  the  TV  (  remote  control  panel  )  indicator  fast  when  flashing  ,
indicating  that  the  TV  is  being  upgraded  ,  after  the  light  is  not  blinking  on  and  off  (  this  process  is  time-consuming
depending on the size of the main board software , the greater the file the longer the software upgrade , the upgrade takes
roughly three minutes when the board software has 270M , 500M needs four minutes ) , means upgrade is complete .

3. Notes:
a. the file name and the case cannot be wrong , otherwise it will not be upgraded .
b.  When  using  the  U  disk  upgrade,  sometimes  light  will  no  longer  flashing  after  a  TV  remote  control  panel  lights
flickering flashes ten seconds, this is upgrade failure. Normal upgrade remote panel lights flashing to be more than two
minutes, in this case upgrade again by powering off main board.
c.  after  powering  off,  if  main  board  cannot  upgrade  normally  ,  programming  again  the  boot  file  (Mboot.bin  or
MbootUprade.bin).
e.  If  the  operator  of  this  program  is  not  familiar  with  the  software,  under  the  condition  the  can  see  factory  menu
recommended upgrading the operating menu to enter the factory to prevent misuse.

4,  when  the  above  third  step  cannot  be  upgraded,  upgrade  the  boot  file  first;  please  refer  to  the  following  specific
operating instructions.
MSD6A638  Network  TV  main  board  related  upgrade  packages  with  mboot.bin  and  MbootUpgrade.bin  equipped  with
two  boot  files.  Both  boot  files  function  are  the  same,  but  there  are  differences  between  upgrade  methods,  only  one
upgrade one of them. If the current TV main board can work properly, copy the boot files to the U disk after formatted
FAT32, then follow the instructions below to upgrade:

Method 1 : first MbootUpgrade.bin boot files, stored in the U disk, and then insert U disk in TV main board USB port,
press and hold the VOL + button on the TV control panel and hold, then power on TV ( main board), approximately after
five seconds the TV ( remote control panel ) indicator flashes rapidly , indicating that the TV is being upgraded , after the
light is not blinking on and off (time-consuming of this process approximately 60 seconds ) , indicating that the upgrade
is complete .

Method 2 : first Mboot.bin boot files stored in the U disk, then U disk inserted in the TV main board USB interface to
power on TV, and then press the MENU button on the remote control and then followed by 8202 the number keys to enter
the factory menu, move cursor to Other Option press OK to enter , and then move the cursor to upgrade mboot option ,
press OK to upgrade ( this time-consuming of this process is about 15 seconds ) .

Notes:
1.mboot.bin  and  MbootUpgrade.bin  files  can  be  put  together  in  a  U-  disk,  but  no  matter  what  methods  to  upgrade,  all
operating  according  to  operation  instructions,  control  time  to  upgrade,  ensure  that  the  upgrade completed  before  power
failure, otherwise upgrade fails.
2.  Because  the  boot  files  related  to  the  TV's  screen  resolution  and  other  relevant  parameters,  so  before  the  software
upgrade boot files of each board must be upgrade first.
3. If the above two methods cannot upgrade, using programming board online upgrade following the instructions:
5, Programming board driver installation.
Use programming board online upgrade, programming board driver program has to be installed to PC, see the following
operation instructions.
1.use USB connecting wire to connect programming board and personal PC.