"Application not found" after Deactivating Ultra Stamina Mode

[infernowheels]

Regardless of whether the app is in the SD Card or not, they won't open up. (Even my Play Store is gone, Backup & Restore too)

However, it seems as though the apps are still identified by the system, I've tried rebooting too many times already and activating then deactiving Ultra Stamina mode again and again... I can't fix it even with Sony PC Companion's restore function:

Any help would be really appreciated, Xperia Z1 C6903 running on the latest Lollipop update14.5.A.0.270.

[_alexdon_ · Accepted solution]

Please read this thread and do not create others:

/t5/Xperia-Z2/UltraStamina-wipes-list-of-turned-off-apps/m-p/993468#M28954

[Trafford_Devil]

I have a Xperia Z1, updated to the latest Android lollipop version.

I enabled Ultra Stamina Mode today while I was out and once I got home I tried to deactivate it.  But it would not deactivate.  Therefore I just restarted the phone.  Once restarted I find that I'm still in some sort of ultra stamina mode hybrid.

Most of my apps are hidden in the default Xperia Home launcher even though I can still see they're on my phone in Settings->Apps.  I can't open any of the few apps that are available as they crash.  I got frequent Google Play Services has crashed notifications.

I restarted several times, activated and deactivated ultra stamina mode numerous times and still no luck.  I searched this issue through Google and found that many people have also encountered this problem and that the only solution was to do a factory reset.

So there you go, I had to do a factory reset, lost all my apps and data which weren't backed up all because Sony can't do quality control when updating their phones.

If you're going to add a feature Sony make sure you test the **bleep** thing on your phones!

[_alexdon_]

See the above link and please do not create other topics.

[Sherif_aly]

When i deactivated the Ultra stamina mode, lots of the applications i have are gone and also the file manger too

[Uliwooly]

@Sherif_aly

I think that has been asked before, are those apps on the SD card?

[Sherif_aly]

Yes

[Uliwooly]

@Sherif_aly

http://talk.sonymobile.com/t5/Xperia-Z1-Z1s/quot-Application-not-found-quot-after-Deactivating-Ultra...

[Sherif_aly]

I read all the replies but nothing helped me, i have the exact issue and not only sd card applications are missing but also the file manger

[Sherif_aly]

@uliwooly , so there is nothing to do except for disabling and enabling some of the applications, but when i do this to the play store i couldn't sign in because it keep telling ne that there is an authenticating problem