HP 32SII Repair

[MikeD]

Hello All...I recently performed the rubber strip repair on my HP 32SII. All went well, the calculator came back to life with all keys functional and the display working well. I snapped the case halves back together and re-tested it. I noticed the screen was now showing all of the numerical segments and small icons lightly lit up The calculator worked but this was abnormal. After maybe half an hour the calculator stopped working and the screen continued to show all segments and icons turned on. The ON/OFF functionality is still working. I'm not sure what could have happened here. There was a bit of force required to snap it back together but it didn't seem excessive. Have I got it into some unknown mode or possibly damaged it electronically? Anyone seen this before? Many thanks for any help...Mike