Due to certain models of eMMC from a specific brand【such as: H26M62002JPR, H26M51002KPR, etc.】 requiring 1.8V for read and write operations, improvements must be made for these chips in the original V2.3 and lower versions:
1. A 3.3V to 1.8V LDO, package: SOT-23
2. Two 1uF-4.7uF surface mount capacitors, package: 0603
The installation effect is shown in the following image:
AP2120N-1.8TRG1 (recommended)
AP2125N-1.8TRG1
RT9166-18GVL(Z00)
The new capacitors should be connected in parallel to the white circle capacitors.
After completing the above operations, select 1.8V for VCCQ in the programmer software and save it.
