The phone number which is linked to the account is invalid now. I had a Gmail account on my previous phone, but that phone is broken and I am logged out of the account. In your case, it is probably corrupted firmware on the SIM that is creating the problem. An infected SIM card can spread malware when you put it into another phone. I put the SIM in my two other phones and they too behaved in the same way.Īlthough it is difficult for malware to get into SIM cards, it is not unheard of. Is it possible for SIM cards to have computer viruses? My Redmi 7A suddenly began to switch off every time I restarted it. This program is particularly helpful when you have to reinstal Windows or Office programs, but you cannot find the product key. A product key is a 25-character code that’s used to activate Windows and helps verify that your copy of Windows hasn’t been used on other PCs or is pirated.įortunately for you, there is a nifty program called ProduKey that can unearth product keys for Windows, some versions for Microsoft Office and Adobe software.

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