Connecting to bootloader from Android 7

Hi all, anyone having issue with SUBJ?
I was trying on Samsung A5 2017 (Android 7 Nougat) using nRF Connect app with no success - on Connect, the LED quickly changes color to green and then back to red, and then the connect times out. On older phone (XPeria Z3 on Androind 6.0.1) everything works fine with the same tag.

Thanks for ideas

I see some similar issues on nRF Connect’s GitHub repo. Try to restart your phone and toggle Bluetooth…?