Warning issued for millions of iPhone 12 users

Following concerns about display irregularities and widespread signal drops, warnings about Apple's new iPhone 12 range are beginning to snowball.

iPhone 12 owners are currently reporting serious battery problems, reports the Forbes.

Users are speaking out about dramatic battery drain when their new iPhones are in standby. While the actual discharge rate varies from 4-15% per hour. Based on comments across Apple support communities on Reddit and Twitter, the issue can affect all iPhone 12 models and there is currently no fix.

"I'm an engineer working in the mobile telecom industry and the discharge rate currently seen on my iPhone 12 is a faulty curve," stated one affected user who notes he has collaborated with Apple on bug reports in the past.

Users are reporting that battery drain can be so high that an iPhone 12 Pro can lose 50% charge overnight while an iPhone 12 Mini can discharge completely. More commonly, affected users see a 20-30% drop overnight.

So far attempts to isolate the problem have come up short, with users disabling mobile data, GPS, WiFi, push email and even factory resetting their phones without success.

One user reported that simply having a SIM installed causes his iPhone 12 Pro battery to drop dramatically and removing it stopped the drain. This suggests a potential problem with the modem, but the sample size is too small to know for sure. It is also unknown at this stage whether this is a problem which can be fixed via a software update or whether faulty iPhones need to be returned.

While thousands of users have confirmed they are suffering from the issue, it also remains to be seen how widespread this is when iPhone 12 models have already sold in the millions.