OK button on Bluetooth pairing PIN popup only activates after at least 16 characters are entered

Question

This is on a Samsung Galaxy S20e which came with Android 9 and was upgraded to 10.

If I enter only 4 characters, the OK button remains inactive.



— vesperto | Sources

Answer

Usually such problems are triaged by:



  • First, clear the cache of Bluetooth app (you will need to enable showing of system apps in your app list from settings)



  • If it doesn't help, do the same on the device being paired



  • If still no luck, delete the data of Bluetooth app on both devices (all previously paired devices information would be deleted and hence as last option)




— beeshyams | Sources

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