C3e-mb-pcb-v4 [patched] -
C3E-MB-PCB-V4 is the internal hardware revision code for the Xiaomi Redmi 7A motherboard
The SN74LVC1G3157 Debacle: A Component Selection Story
V4 also incorporates a painful lesson from V3 regarding analog muxes. The original V3 used a generic 74HC4051. It worked, but its R-on resistance varied wildly from 50Ω to 300Ω across temperature, destroying the linearity of our thermistor readings. c3e-mb-pcb-v4
Firmware and BIOS Updates
To get the most out of your C3E-MB-PCB-V4, you must be on BIOS version 4.2.0.8 or later. C3E-MB-PCB-V4 is the internal hardware revision code for
Integration of the PMI632 for battery charging and system power sequencing. Status Indicators : Power good, user LED, and