Quote Originally Posted by sawin View Post
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In my case, the Updater sees the device and when I press OK, it shows "Updating 100%" and I hear the voice disconnecting the device and the ID in the Updater program changes to 0 and after a while, I get an error like in the picture. Is it possible that this is physical damage?
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(the picture is not mine, but it shows similar symptoms. in my case it shows the device and its ID)
This can be actual chip problem. I can't say for sure however but you should try with different USB cables and even another PC using only a rear USB2 (not USB3) port in case the current connection is flaky.

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And one more question. Let's say it is physical damage to the chip. If I find the same and exchanges it (I need the device) then I can later upload the software presented in the forum ways, or will I have to use programmers and upload something else so that the chip will be supported
If you cannot return the device for a refund then you'd be better to try sourcing another 2599LM with a cracked screen. It's so much easier to change your screen onto another good device than change flash chips. I've no idea whether 2xx9 devices have a BGA chip but even that is not an easy changeover, re-balling isn't fun.

I'd exhaust all possible ways to reflash firmware first however.