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Reading the address bus.

A project log for Dissecting a hand-held NOAC console

This is an attempt to understand how these little things work, and what we can do on it.

nyh-workshopNYH-workshop 10/11/2020 at 13:050 Comments

Unfortunately, these NOAC consoles tend to have either a TSOP-56 flash, or some sort of carrier board for BGA flash soldered onto it. Toss in some crappy and pirated games, they are ready to be sold to the market for 5 bucks and to (possibly) calm down a kid before he/she get bored of it.

What I got for myself is the carrier-board version. Removing it could be a PITA - I would either break the BGA, or probably the entire board if I'm not careful.

A look in the EEVblog forum article (https://www.eevblog.com/forum/beginners/fun-project-hack-cheap-handheld-console-help-with-bga-nand-flash-chip-needed/ ) shows that the carrier-board could have been using the general SOP-44 pinout for flash:

Armed with the logic probe, I must see what are the addresses that are accessed during its bootup...

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