HP Prime FW for 2023?

[Jean-Baptiste Boric]

(01-12-2023 06:46 PM)Kevin Ouellet Wrote:  For G2 calcs I heard that third-party firmwares with no hardware modding was impossible, though.

Last time I looked at it, the HP Prime G2 has a chain of trust (and therefore rejects non-official update firmware files), but no enforced root of trust. Booting a third-party firmware from the SoC recovery doesn't require hardware modding, but it does require disassembling the calculator to reach the test point needed to trigger it. There are known ports of U-Boot, Linux and Windows 10 IoT running on the HP Prime G2.

To my knowledge, no one has demonstrated booting a third-party firmware without going through the SoC recovery and therefore without disassembling the calculator.