DIY RAM Upgrade for Raspberry Pi 4
Source: Raspberry Pi RAM Upgrade By Replacing SMD Chip | Elektor Magazine
Raspberry Pi enthusiasts have been struggling to get their hands on the popular single-board computer due to a shortage of them, especially the 8 GB version. However, YouTuber MadEDoctor of Bulgaria has found a way to upgrade the RAM chip on a 1 GB Pi 4 to 8 GB using some simple tools and a bit of know-how.