Here’s a technical write-up based on the file — though it’s important to clarify a key fact first. ⚠️ Critical Clarification: Samsung GT-S5620 ≠ Android The Samsung GT-S5620 (also known as Samsung Monte Slider or Monte S5620 ) never ran Android . It ran TouchWiz 2.0 Plus on Samsung’s proprietary OS (similar to feature phone Java-based OS).