I've had some trouble getting Synapse to work at first on a few different 5.1 builds now. It does work, but needs a little tinkering.
1 - Force stop synapse and clear synapse data
2 - Uninstall synapse
Reboot to recovery
Flash UKM uninstaller v2
Flash HD kernel
Flash UKM 3.8.1
Reboot
3 - Open terminal emulator and enter
Su
uci reset
uci
4 - Open Synapse
If it still doesn't work, repeat the steps above but perform step 3a below and then step 4.
3a - Check in /system/xbin if the uci file exists.
Using a root file explorer change permissions to 777 (R/W for all users)
Do the same for
/data/N4UKM/uci
You can do it in the terminal emulator with
su
chmod 755 /system/xbin/uci
chmod 755 /data/N4UKM/uci
Maybe this will help someone
Sent from my Nexus 4 using XDA Free mobile app
It's working now! Thank you my friend!
And best combo so far! Awesome battery life!