スマホ・アプリWi-Fi won't connect or disconnects immediately after iPhone update? 6 causes and solutions you can try now [Compatible with iOS 26]Explaining 6 reasons why Wi-Fi won't connect or disconnects quickly after updating iOS on iPhone and how to deal with it. We will introduce you to the simplest methods, such as resetting network settings and deleting VPN.2026.02.26佐藤 理香
スマホ・アプリiPhone is hot! 6 causes of heat generation while charging/gaming and the correct way to cool down [Also some NG actions you should not do]Explains 6 reasons why your iPhone gets hot while charging or playing games, and the correct way to cool it down. We'll also introduce things you shouldn't do, such as putting it in the refrigerator or cooling it with water, as well as preventive measures to prevent it from getting hot in the first place.2026.02.26佐藤 理香
スマホ・アプリCan't use Suma Ticket/Electronic Ticket due to smartphone malfunction? Reissue procedure by platform and 3 preparations to make in advanceWe explain what to do when you can't display your electronic ticket (Smartphone, Law Ticket, TicketPla) due to a smartphone malfunction or model change, for each platform. We will also introduce you to identity verification on the day of admission and 3 things you should do in advance.2026.02.23佐藤 理香
スマホ・アプリIs your smartphone broken and you can't receive the SMS verification code? What to do when you can't log in and 5 things to prepare in advanceWe will explain 5 ways to deal with the problem of not being able to log in because the SMS authentication code did not arrive when your smartphone is broken or lost, and 5 preventive measures to prevent this from happening again. We will introduce specific steps such as backup code, passkey, SIM replacement, etc.2026.02.22佐藤 理香
スマホ・アプリCan't unlock your smartphone after your parent passes away? Correct way to deal with digital belongings and settings to be done before deathAfter a parent passes away, the number of problems such as not being able to unlock a smartphone because one does not know the passcode is rapidly increasing. We will explain how to deactivate iPhone and Android, and the Apple Legacy Contact and Google account deactivation management tools that you should set up before you die.2026.02.19佐藤 理香
スマホ・アプリCan't save videos on LINE? 5 causes and what to do when the storage period has expired [iPhone/Android]Explains the causes and solutions when videos received on LINE cannot be saved. Introducing solutions for five causes, including expired retention period, insufficient storage, and permission settings. Alternative methods after LINE Keep ends and how to use LYP Premium.2026.02.19佐藤 理香
スマホ・アプリAll my drafts on X (Twitter) disappeared after changing the model! Thorough explanation of causes and countermeasuresAll my drafts on X (Twitter) disappeared when I changed my smartphone model! Explains the reasons why it disappears, how to back it up, and how to use scheduled posts.2026.02.157 min佐藤 理香
スマホ・アプリHow to change iPhone charging sound to your favorite sound | Easy setting with shortcut appExplaining how to change your iPhone's charging sound to your favorite sound using the Shortcuts app. You can set your own charging sound, such as a voice of encouragement or sound effects.2026.02.15佐藤 理香
