Re: Sony XBR-55X900E turns off randomly
What I know from one technician, that first you need to install null firmware on TV, then on top of that you can install whichever version you want. But NULL-able firmware is not accessible for general public....
norayr
Member
Last Activity: 04-15-2018, 03:47 AM
Joined: 03-31-2018
Location: Yerevan
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Re: Sony XBR-55X900E turns off randomly
I don't know how to do the downgrade....Leave a comment:
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Re: Sony XBR-55X900E turns off randomly
Unfortunately not.
I wonder when you blow hot air onto the chip, how other componemts are not getting loose and not detaching from the board?...Leave a comment:
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Re: Sony XBR-55X900E turns off randomly
I wonder what common issues you have faced with this model: XBR-55X900E?
What are typical failures on this model.Leave a comment:
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Re: Sony XBR-55X900E turns off randomly
Not helping. Did several times....Leave a comment:
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Re: Sony XBR-55X900E turns off randomly
Sure. Factory reset is not helping....Leave a comment:
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Re: Sony XBR-55X900E turns off randomly
So, anyone who experienced such behavior on Sony Bravia before?
By the way, what were the symptoms for LG TVs for cold solder joint of main processor?Leave a comment:
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Re: Sony XBR-55X900E turns off randomly
Thanks for the inputs. Can you send a link to video how this procedure is done? I don't have PCB engineering experience. Only chip design
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Re: Sony XBR-55X900E turns off randomly
It's a new TV. Bought in USA shipped to Armenia. So no warranty. So, do you mean the main chip, which is BGA packaged chip, needs to be removed and solder on main board again?...Leave a comment:
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Sony XBR-55X900E turns off randomly
Hi Experts,
I wonder who has experience with repairing Sony Bravia TVs?
I've got XBR-55X900E Android TV. It has latest firmware update. After a week or so, it started to turn itself off.
Before turning off, picture is standing still for few seconds, sound may go on, the after few seconds it turns off.
Sometimes it turns off then back on and is staying on SONY logo. Will not boot.
When it turns off, I can't turn it on right back. Need to do power reset and it may require up to 15 or more minutes I can turn it on.
And at one occasion when I was... -
Re: New Members - please post your introductions here
Hi,
I am Norayr from Armenia. I have engineering background and experience with chip design.
I have joined this forum to hear from experts about my TV problem, which is hard to debug and someone, who experienced similar thing can greatly help me.Leave a comment:
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