Author Topic: Question about firmware flash switches  (Read 1410 times)

power9mm

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Question about firmware flash switches
« on: January 21, 2023, 02:13:20 pm »
does "1" mean its enabled? and is that film on them a tamper protection?

https://imgur.com/j9cXkwW.png

atomicdog

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Re: Question about firmware flash switches
« Reply #1 on: January 21, 2023, 11:35:28 pm »
The film (kapton tape) is there to protect the switch when it's being soldered to the motherboard add to allow a machine to pick up the part and place it on the motherboard.

power9mm

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Re: Question about firmware flash switches
« Reply #2 on: January 22, 2023, 02:51:27 pm »
so which setting enables write protection? I assume it's 1, but I want to be sure. I haven't seen it documented specifically.

atomicdog

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Re: Question about firmware flash switches
« Reply #3 on: January 28, 2023, 11:24:52 pm »
Looking at the schematic, moving the switch towards 1 disables write protection (allows writing).
The pin is disconnecting from BMC control and pulled high by resistor; 1(off) 2(on)