Do not confuse a hot eMMC with a hot CPU or PMIC. Run these tests:
"Revolutionizing Lifestyle and Entertainment: The Impact of Postal 3 and eMMC" postal3 emmc hot
: "Recent developments in the 'postal3' project have highlighted the importance of efficient and reliable storage solutions. The choice of eMMC for data storage presents a balance between cost, performance, and size. A key consideration in the design and deployment of 'postal3' devices is ensuring that the eMMC does not overheat, as high temperatures can affect the longevity and reliability of the storage. Cooling solutions and optimized software management are crucial in maintaining an optimal operating temperature." Do not confuse a hot eMMC with a hot CPU or PMIC
How do you know the eMMC is the source of the heat? A key consideration in the design and deployment
After fixing a "hot" eMMC, modify your POSTAL3 to prevent recurrence:
Budget devices often use older or lower-binned eMMC standards (e.g., eMMC 5.0 or 5.1). These have lower write efficiency compared to modern UFS or NVMe, leading to longer active times and more heat generation during data transfers.