After pulling down the screen to open the Control Center, tap the ➕ in the top left corner, then tap 'Add a Control' at the bottom of the screen, scroll down to 'Connectivity' and select Bluetooth. （iOS26.5)

Hello,Does the charging icon appear when charging? You can try restarting into DFU mode and connecting to iTunes.

I am sorry, it might be due to network issues or some other reason that the same content was submitted repeatedly.

I think It might be related to your device model. Generally, you can see 'iOS 27 Developer Beta' in 'Settings - General - Software Update - Beta Updates'.

@DTS Engineer Hello,It worked, but some leftover builds of projects that have already been deleted still exist (searching in Apps for the deprecated projects still finds leftover builds, even though they can't be launched). Can I just use the rm command to delete everything inside /private/var/folders/?