My battery runs for half an hour. In Poland I can not exchange it, there is no service. Where can I buy a new battery for P2? And how can it be exchanged, how does the phone open?
sorry to hear that your battery is defective. Best would be to send the phone back to your dealer for warranty.
It is quite difficult to open the phone, esp because of the wires that connect the fingerprint sensor and the antennas. We do not recommend this as it is very difficult and you would loose you warranty. The cable for the fingerprint sensor breaks very easily. You would need to melt the plastic covers on top and bottom of the mobile by heat and then open the case very carefully with a very tiny screwdriver.
There is no manual on how to open the case. I read about some discussion on 4pda, which is a Russian forum:
Batteries you could get from AliExpress, here one example: Just search on http://www.aliexpress.com
for P2 battery