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Downgrade my Ti-nspire

:32tins: :32tinsktpb: :32tinsktpn: :32tinscas: :32tinstpkc: :32tinstpktpb: :32tinstp: :32tinscastp: :32tinscmc: :32tinscx: :32tinscxcas:

Downgrade my Ti-nspire

Unread postby matiton » 02 Apr 2024, 23:33

I have a question, I would like to know how I can downgrade my Ti nspire cx calculator Current version (4.5.5.79)
Boot 1: 3.0.0.99
Boot 2: 4.5.0.14
Initial letters: P - xxxxx
I have a USB/TTL converter but I don't know if it is possible to downgrade the operating system using it on my calculator. I saw a pdf about this from a colleague on the forum explaining how to do this step by step.
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