Hi, first time posting here.
As the title states, I found a bug with the fingerprint unlock system on my S6 Edge (SM-G925F) running Marshmallow 6.0.1. I tried Google but no go. Seems this hasn't been reported so far. Mods, please take down this thread if it has :)
I reside in Germany and am currently on vacation in the United Arab Emirates. I found that my SIM card wouldn't go on Roaming mode so I just keep it in Airplane Mode and turn the WiFi on. That isn't a problem however. Here's the bug now.
If your SIM Card requires a PIN to unlock the phone after you reboot it and you have Airplane Mode on, the phone will not ask for the SIM Card's PIN. Instead it will take you to a normal unlock screen without the "use password instead of fingerprint for first time" screen. At the normal unlock screen, your fingerprints will not be registered at all. You have to use your backup password that you set (Note: The fingerprints work in the Fingerprints security menu so the sensor is actually fine). This happens even if you unlock using password and lock it again. It will keep doing this until you deactivate Airplane Mode, at which point it will ask for the SIM Card PIN. After this point, the fingerprint unlock works fine.
TL;DR: If you have a SIM that requires PIN on reboot and you use Airplane Mode, the PIN won't be asked for and you have to use your backup password to unlock. Fingerprints won't unlock until you turn off Airplane Mode and enter the SIM's PIN.
As the title states, I found a bug with the fingerprint unlock system on my S6 Edge (SM-G925F) running Marshmallow 6.0.1. I tried Google but no go. Seems this hasn't been reported so far. Mods, please take down this thread if it has :)
I reside in Germany and am currently on vacation in the United Arab Emirates. I found that my SIM card wouldn't go on Roaming mode so I just keep it in Airplane Mode and turn the WiFi on. That isn't a problem however. Here's the bug now.
If your SIM Card requires a PIN to unlock the phone after you reboot it and you have Airplane Mode on, the phone will not ask for the SIM Card's PIN. Instead it will take you to a normal unlock screen without the "use password instead of fingerprint for first time" screen. At the normal unlock screen, your fingerprints will not be registered at all. You have to use your backup password that you set (Note: The fingerprints work in the Fingerprints security menu so the sensor is actually fine). This happens even if you unlock using password and lock it again. It will keep doing this until you deactivate Airplane Mode, at which point it will ask for the SIM Card PIN. After this point, the fingerprint unlock works fine.
TL;DR: If you have a SIM that requires PIN on reboot and you use Airplane Mode, the PIN won't be asked for and you have to use your backup password to unlock. Fingerprints won't unlock until you turn off Airplane Mode and enter the SIM's PIN.
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