I tried with p201 but no go. Tried toothpick and reboot to recovery. Do I rename the dtb to tdb.img and overwrite original one? (I did)... What exactly did you do to make it boot?
I think your base Android rom is outdated because is from january 2016.
I have two MXQ PRO 4K with Minix U1 ported ROM inside but one has RTL8189 and other has AP6181 wifi module. My ROMs are from october so boot code can be different than yours
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