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Repair guides and support for your Toshiba TV.

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Screen disappers after 2 sec

Toshiba 49" chromcast inbuild model 49L621U is having issue with turn on, when I plug in it will show up Toshiba chromcast inbuilt and disappears in 1-2 seconds then power button blinks another 2 sec

Answer this question I have this problem too

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2 Answers

Maybe there is a lot of dust in the TV.  That would cause something like this.

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Did you ever find a solution to this? I (along with many others I’m finding) am having this exact same issue recently which leads me to believe it is most likely a firmware issue and nothing hardware related (unless these TVs were all designed to fail at the same time!) - I tried flashing the firmware that Toshiba has on their website but it goes to 20% and fails…I’m guessing this is due to the firmware being an old version and the TV not allowing a downgrade - that said has anyone found a firmware that will work? The version I tried is 20170830113420_update_casttv_uhd_01.04.088_fy17_sc_init_clear.prg which is obviously an old (possibly the original) version. Anyone with a working version out there? My model # is 55L621U. Thanks much!

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satya.revoori will be eternally grateful.
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