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Pimp my scope: Unlocking Software Features in a Tektronix TDS784D

A while ago I've acquired an old Tektronix TDS784D oscilloscope. Originally, it came with these enabled options:

  • 05 - Video Trigger
  • 13 - Centronics and RS232 interface
  • 1F - Floppy disk drive
  • 1M - Memory upgrade x1
  • 2F - Maths/FFT, differentiation features

While this already is a lot, there's still option 2C (Comm signal analyser) which is a pure-software option. (In later production runs, the device might also already contain the necessary hardware for the bigger memory option 2M. Check whether your serial number starts with B4xxx. Mine didn't.)

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BlackBerry KEYone OTA updates for different variants

BlackBerry/TCL has disabled the described method of gaining access to the advanced features of the Updates app in the firmware versions of October 2017 and later. However, there's a way to still get access using the Janus vulnerability and installing an older or patched version of the updater. But this, too, will be gone after the December 2017 update.

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