meizu pro5 Block on Demo firmware 4.5.4d

[rrafik]

the problem, it's the 4.5.4D and not a 4.5.4a or 4.5.4i/g, so i can't upgrade to a firmware with a BL unlocked... i can't upgrade to anything...

I try Kingroot, change the id region, try all update firmware, TestPc tool but i have a "token sign failled"...

I was found a thread on htcmania but there are no solution...

Help me please i don't have more idea...

 

[rrafik]

Help me please

Help me please