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The flash in new devices is still erasable with UV (sometimes) but you’ll notice every single chip shown in the video, is a dip package, quite old school. Mor
by SlowRobotAhead 9y ago
The flash in new devices is still erasable with UV (sometimes) but you’ll notice every single chip shown in the video, is a dip package, quite old school.
More modern chips just have metal layers over the flash. You can decap and have a layer of transistors or a layer of metal or some other impediment to the UV light.
Well this guy may have figured out another way to decap chips, this is not a (great) way to hack chips anymore.
- neuralRiot 9y agoI saw an article about some guy that was able to UV erase the metal covered fuses by masking the flash area and lighting the chip at an angle, that allegedly creates a reflection in the metal cover enough to to erase them. Edit: I found it, http://www.bunniestudios.com/blog/?page_id=40 http://www.bunniestudios.com/blog/?page_id=40, it's done on a PIC18f1320 which is DIP, it would be interesting to see if there are any changes in the design to mitigate this method.