An update is rolling out for the Samsung Galaxy M20, which promises to speed up charging. The phone has a massive 5,000mAh battery and comes bundled with a relatively fast 15W charger (same as the S10 flagships got). We haven't seen any complaints about charging speeds, so it's not quite clear what is the issue that Samsung fixed. The update also improves the general stability and performance of the phone, according to the change log. Update for the Samsung Galaxy M20 This is a small update, just a 73MB download, so the base software is unchanged - the phone remains on Android...
Source: https://www.gsmarena.com/samsung_galaxy_m20_update_promises_improved_charging_speed-news-36614.php
