5/21/2023 0 Comments A1347 upgrade ram![]() The default balls are made of lead-free solder, and reballed the RAM chip with leaded solder balls to lower the melting point, but it’s by no means a requirement that you do the same. First off, you get a compatible RAM chip somewhere like Aliexpress – lucky for us, those come equipped with a set of balls from the factory. These chips are BGA, and those might feel intimidating if you’re just starting out with hot air – however, we recommend you watch this video, as ’s approach is of the kind that brings BGA replacement to hobbyist level. Or so we thought – shows us that refreshing online store pages isn’t the only way, having successfully upgraded the RAM chip on the Pi 4 from 1 GB to 8 GB with help of a hot air gun. Nevertheless, if you’re looking for a Pi 4, you would need to look far and wide – and things are way worse if you need the 8 GB version specifically. The Raspberry Pi shortage has been a meme in hacker circles for what feels like an eternity now, and the Pi 4 seems to be most affected – though, maybe it’s just its popularity.
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