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Warning [2] Trying to access array offset on value of type null - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
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Warning [2] Attempt to read property "messages_in_thread" on null - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
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Problem with HP-75C LCD display



#2

Hi all,

I'm having a problem with an HP-75C calculator.

It works fine, but 2 vertical lines in the display don't show up.
Is there anyway to fix this by opening the calculator? Any tips would be welcome.

Cheers to all,
Jorge


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