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HP-12C Platinum won't turn off after screen self-test
11-28-2023, 03:08 AM
Post: #5
RE: HP-12C Platinum won't turn off after screen self-test
(11-28-2023 02:43 AM)Mark H. Shin Wrote:  Original test calc was 12C Platinum (China production):

S/N CNA02113887
C 2004 hP
ChE - - 564Ah

After your origin question, I also tested a Phillippines version:

S/N PHA92004WC
C 2004 hP
ChE - - 564Ah

Same results. Looks like it's a "feature" Smile!

Thanks for the info.

My 12CP is also made in the Philippines, same Checksum.

HP-12C Gold / HP-12C Platinum
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RE: HP-12C Platinum won't turn off after screen self-test - lvt - 11-28-2023 03:08 AM



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