Immediately disable OTA updates. Most “official updates” for MX9 are broken and will re-brick your device.
Common post-flash steps:
The "Android 712" in your search string almost certainly refers to . firmware tv box mx9 4k android 712 verified
requires caution, as "MX9" covers various hardware configurations. Installing the wrong version can "brick" (permanently disable) your device. 1. Identify Your Specific Hardware Immediately disable OTA updates
: Do not unplug the cable until the software shows a "Success" message. The device will automatically reboot into the new Android 7.1.2 environment. firmware tv box mx9 4k android 712 verified
A frequent confusion in TV box forums is using ROM and firmware interchangeably. For the MX9:
: A USB Male-to-Male cable is required to connect the TV box to your laptop. Step-by-Step Flashing Instructions