My portal tv stopped working and it is not powering on , not sure whether recent firmware update bricked it. I dont see any lights when connected to power. I checked power adapter, it seems to be working well. Please help whether there are eny option to connect to PC and reload firmware to get it working
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Since you have checked that the power adapter is working OK, not powering on sounds like a problem with the power supply in the device itself.
Powering on and not working is different to not powering on at all. You can’t reload firmware if the device indicates that it has no power.
If the device is still covered by the manufacturer’s warranty, go the warranty route to get it fixed.
If the device is no longer under warranty you may have to open it up and inspect the board near to where the power connector is situated and check for any obvious component damage e.g. blown or overheated components etc.
If you do see something and you’re not quite sure or even not, post some images of the board back here. Maybe someone can spot something that you can’t. Here’s how to add images to your question on ifixit 在已经存在的问题里加入图片
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