I flashed the firmware posted by Rick (from Banggood, V1.0.1_V5, 28 Aug 2017). The problem with Google Play Services is resolved (automatically updated). The rom is not rooted but, with a procedure a bit complicated, I managed to root the system.
Hello Picard (french?), how did you root the Onda v10 pro ? I can’t find any info about rooting this tablet. thanks in advance for your help.