The "aml920" likely refers to the chipset or internal board identifier, while "4g 512m" specifies the storage and memory capacity: and 512MB of RAM . This is a "low-RAM" configuration, which is increasingly rare in a world where 8GB or 12GB of RAM is standard. For such a device to function, the firmware must be extremely lean, stripping away non-essential background processes to ensure the operating system can run without frequent crashes. 2. The Significance of "SOS Patched"