EXPERT FIX

Broken audio after flashing custom ROM (China variant)

ADSP firmware signing mismatch between CN hardware variant and ROM-shipped Global blobs

Affects: Xiaomi Mi Max 3

Mi Max 3 with silenced speaker - audio not working after custom ROM flash

The flagship Mi Max 3 issue affecting every user of the China hardware variant. After flashing any modern Android 13+ custom ROM (crDroid, Matrixx, EvolutionX, LineageOS, RisingOS), all audio stops working. Speaker, earpiece, Bluetooth, 3.5mm jack —” total silence. The root cause is an ADSP firmware signing mismatch between the China hardware SoC and the firmware blobs included in the ROM builds.