Stuck in between "normal" and "ultra" power saving mode?

[anon(10696441)]

(There were lots of questions about being stuck in ultra power saving mode, but note that my issue is different.)

My rooted galaxy note 4 phone with android 6 once turned off in the middle of enabling ultra power saving mode. Then I turned it on and the phone is apparently stuck between the regular mode and ultra power saving mode, more precisely this is what is happening:

The screen is gray scale as if I was in ultra power saving mode, but all apps are there and the entire layout is identical to the regular mode, wifi, data, everything works as usual. The only remnant of ultra power saving mode is the gray scale screen and the fact that I can't enter ultra power saving mode. If I try, nothing happens. As far as the "Turn on ultra power saving mode" button is concerned, I'm already there, apparently. If I restart the phone it returns to the same state.

So it looks like I'm stuck somewhere in between.

Any tips on how to resolve it? The phone is rooted so I can do pretty much anything. I guess some configuration file was in the process of writing to when the phone turned off and so couldn't complete, so my guess is that I just need to delete/edit some file somewhere to resolve the issue.

Thanks a lot!

 

[Kizzy Catwoman]

re: Stuck in between "normal" and "ultra" power saving mode?

Have you tried the phone in safe mode? Is it still the same?

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https://forums.androidcentral.com/showthread.php?t=409154

 

[anon(10696441)]

re: Stuck in between "normal" and "ultra" power saving mode?

(Now I have an account )
Yes, I tried safe mode and the situation is the same: gray scale screen, all apps/wifi/data/etc working, but can't enter ultra power saving mode.

 

[anon(10696441)]

re: Stuck in between "normal" and "ultra" power saving mode?

There is an eerily similar problem described at
https://forum.xda-developers.com/note-4/help/emergencymanagerservice-stopped-t3521032#post82910631
and even a solution is described "find the EmergencyManagerServer and reset its data" but it's not clear to me what that means. What data could it be and how to "reset" it?

 

[anon(10696441)]

re: Stuck in between "normal" and "ultra" power saving mode?

Okay, got it eventually: in "Application manager" one needs to enable "show system apps", then EmergencyManagerService will show up on the list and one needs to clear data and clear cache. This solves the problem