- Oct 10, 2016
'New' version of playstore apk is there from the date when OP was last time updated. But the OP says that you can download the real latest/up-to-date from APKmirrorI've managed to download the Network patch files from Mega.
I've installed Gboard, but I cannot install the "new" Google Playstore apk from the tutorial.
I've also tried the "old" version, but no luck!
It worked with the latest available version of Google Store.
Be aware that the method still works, that network patch also works, etc, for the current b552 (and previoud b550)
But the dev last time updated OP two years ago, at the time of b540
He has no more P9, he is not supporting the thread but he didn't remove or close since it is still useful and from time to time somebody new comes with the old P9 who can update his P9 from Nougat to Oreo (and even use then for custom ROMs)
People also got (unexpected) OTA updates v550 and b552 and things did not broke
If you downloaded from Mega (link in OP), that's actually my Mega, but I also doesn't have P9 for about a year, hence I don't update but didn't delete