A small trick to program SPI flash on board.

[usbbdm]

I remember older days people trying to raise the voltage to get flash detected. What I found during programming HT802 is the other way around. I need to lower the voltage to give SPI enough power but not enough for the CPU to be operational.
I explained why in latter video.
I will create a separate video unlocking Vonage HT802 voip box.

[Boxnut]

There are a few old tricks that work, my choice is if JTAG, the 0rocessor is already initialized with very efficient SPI reading and writing to EPROM or e2prom.
Someone posted a means of bypassing the CPU and tapping the 4 wire directly, that can be made to work.

[usbbdm]