This BSI is so cheap... probably not worth spending so much time with it... flash restore is possible but you need right tool and right file
<a href="https://ibb.co/0CWcV7M"><img src="https://i.ibb.co/0CWcV7M/666898.png" alt="666898" border="0"></a>
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wrong code
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You have communication so just use diagbox to update/upgrade...