Reverse-engineered a cheap USB battery/charging tester (Qianli iBridge A3 "Tail-QL", HC32F460 Cortex-M4) — full protocol + SPI screen driver mapped, stuck on font bitmap format, looking for help [link: original firmware bin + official flashing tool + MCU datasheet]
https://end2end.tech/2fd56acaeb59
@secharvester
Post #23651
183