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It probably had a 1.1 OS anterior to 1.1.9170.Yes, "had"... being unable to update the OS, the previous owner thought it would work better after erasing the OS through the maintenance menu.
Quote from: critor on February 02, 2011, 11:06:18 amIt probably had a 1.1 OS anterior to 1.1.9170.Yes, "had"... being unable to update the OS, the previous owner thought it would work better after erasing the OS through the maintenance menu.Are you sure they weren't part of the TI Mathprint dev team?
I noted a mistake in your topic: "anterior" doesn't not exist in English, translation is prior or previous.
Try connecting one of your CAS+ calculators to it to see if it will transfer the OS ??
CAS+ other calc GND -----GND Rx\ / Rx \ / \ / X / \ / \ TX/ \ Tx
If it is a prototype maybe it can only accept OSes signed from the development team, it would be odd to allow all OS transfer to not try install anything
Just remember, Ti-cares.