You'll find nothing for the P30.
However it's hard for this leopard to change its spots...
While the carrier says the issues found in 2011 and 2012 were resolved at the time, the revelation may further damage the reputation of a Chinese powerhouse.
www.bloomberg.com
Granted this was multiple years ago, but I for one don't trust them. I can easily believe that deep down in their silicon, somewhere buried in the microcode they only they have access to, there's still code out there that enable back doors for them to exploit as required.