About a month ago my OnePlus 7 received a software update from OS11 (which worked extremely well) to OS12. It was a big mistake. Functionality was removed, a number of apps stopped working correctly, and the overall usability of the phone was generally downgraded. The Oneplus strength (the Oxygen UI) has been utterly destroyed. I wrote a detailed review of the problems to OnePlus on March 30th, and received the promise they would respond within 48 hours. Despite a further reminder, I have heard absolutely nothing. I have reverted my phone to OS11, which is a long and tortuous process. Now I am pestered by daily notifications to upgrade again to OS12. Never. Been there, done that. Don't want to go there again. But why the radio silence from OnePlus customer service?UPDATE. Magically, an hour after posting this review, OnePlus customer service Europe sent an email advising to do a full reset. This will reinstall OS12 again.... Words fail me.
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