VLCD5
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casainho docs - probably older PCB version
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MCU - HR7P194FGL
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Main DCDC - XL7005A - low current - always on. Also 5V, I think?
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USB / 5V pogo pin secondary DCDC - TPS54160 - switchable by MCU, but usually always on, maybe turns off when >1.5A detected. Set to 5.3V OC.
R61 (input shunt resistor) heats up quiet a bit if powered from low voltage, e.g. <20V, and phone charging is active.
USB has its own shunt resistor (R47 = 1ohm) that doesn't heat up much as it's connected to solid grounds on both sides, despite 1W dissipation at 1A charging current. It also serves as a current limiting resistor for the USB devices (0.7A-1.3A depending on the device). With it shorted the current easily can go to 2A on some devices. It also serves as ADC input for the MCU. It is used to display animated icon when USB is connected and probably also to disable TPS54160 above certain current.
For now I shorted it with wires attached to D10 and hopefully I don't burn D4 and L2 when my phone uses 1.6A. TPS54160 itself doesn't heat up too much. The effect is that there is no stupid animation but also no overcurrent protection