Hello, i bought an official M5 in Ukraine at Citrus.ua. And my phone does not sleep when the screen is off.I switch off the internet and WI-FI and it will discharge ~20% by night. When i open battery setting it tells that the period of deep sleep is 0 seconds or about it. So it works only 24 hours after fool charge

It's pretty common problem with M5
4pda.ru/forum/index.php?showtopic=781426&st=4960
Somebody replaced their SIM card for new one and it helped, but not me, the problem stays even with new SIM.

Can you help me with this issue?