I have tried many wireless chargers and it doesn't work ? is it a well known issue ?

Hello tamerattia,

Thanks for that info and for choosing the Apple Support Communities. If we understand correctly, you are unable to wirelessly charger your iPhone 12 with the same charger that works with your daughter's iPhone. First, make sure your iPhone is fully up to date, as the updates contain stability fixes that can resolve issues like yours, as well as important security updates to keep your iPhone safe.

Update the iOS software on your iPhone, iPad, or iPod touch

Update your carrier settings on your iPhone or iPad

Next, temporarily take off any case you may have your iPhone in, restart your iPhone, see the steps in this Apple resource on wireless charging, and then contact Apple directly if you need any further assistance.

How to wirelessly charge your iPhone

Get Support 

Cheers!

I have a brand new iPhone 12 Pro Max, and the wireless charging on it is not working properly. I am running iOS 14.3, the latest released version currently available. It worked with an Anker wireless charging pad for a while, but stopped as of yesterday. I tested the pad with an iPhone XS, and that works just fine. I removed the iPhone 12 from its case, and that did not help. I finally rebooted the phone, and wireless charging on the iPhone 12 Pro Max started working again. We'll see for how long. It's clear, however, that there are still issues with wireless charging that the latest software update did not fully resolve.