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What happens if the flash memory is erased?

April 26, 2017erased flash memory happens

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What happens if the flash memory is erased?

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If the entire flash memory is erased or corrupted, perhaps by a ROM update gone bad or a malicious program, don’t worry, the calculator is not worthless. The HP49G has a 64KB non-flash ROM which cannot be erased, and it contains software to download new system software from a PC in case the flash ROM is wiped out. This permanent ROM, which HP calls the “boot sector,” makes it so that the calculator does not have to be sent back to HP for repair if the flash ROM is destroyed.