Question about LG HT503TH Theater System

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Lg ht503th home theatre has a problem after updating. when i turn it on, after 15 seconds it turns off by itself

I started updating. When it stoped i removed the disk and unpluged it. Then when i turned it back on, it wouldn't do anything, and is turning off by it self after about 15 seconds.

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  • Allrounder
    Allrounder Jan 04, 2014

    For some reason your update failed, you have to desolder the flash memory (IC 503) from mpeg PCB and write it again using an external programmer.

  • Allrounder
    Allrounder Jan 04, 2014

    The flash memory type could be SST25VF016B or Intel 016S33B, 2MByte flash, you have to be sure wich type is. Make sure you erase the memory through its end, that means 2001FF. After that write the BANK30.rom into flash (the file BANK30.rom inside the zip archive provided by LG website, DO NOT RENAME THE ZIP INTO ROM, like LG tells you in those stupid instructions). Probably this is the mistake you did when you burned update CD. When writing memory make sure to select device end to 1FFFFF, otherwise your hometheatre will not start.

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