Archive for model A225F, a code that matches the Samsung Galaxy A22 4G, with a U4 binary tag and a 512 MB dump, packed as a 38.8 MB 7z file. The U4 marking refers to the bootloader binary level, which must match or exceed the phone's level for the data to work. Such dumps are written via ISP or a programmer box to revive a dead board. Extract with 7-Zip, back up the original storage first and keep in mind that device-unique partitions differ.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @wzcare. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
7-ZipWinRARKeka (macOS)