ROI ASIC / Knowledge base / Amlogic USB unlock (September 2025+ stock)
Amlogic USB unlock (September 2025+ stock)
Amlogic A113D boards from September 2025 lock the USB port; this is why and what to do.
From September 2025 Amlogic stock firmware locks the micro-USB port in addition to the signature lock.
The USB port must be unlocked before an SD or USB-OTG install. This is a guided, support-assisted step - do not force it.
Write to support with your model and stock date and we hand you the verified unlock flow.