z Pro 7.1.1 loss of mobile data connection

gurumat

Hi,
I updated yesterday and first everything went well.
Then I discovered the following:
After leaving a wifi spot, or after the phone was in sleep for some time I don't have mobile data anymore.
I think it mostly is when the phone is unused for some time.
Trying to switch mobile data on and off, or entering and leaving flight mode does not work.
I have to reboot to male mobile data work again.
The phone shows 4G avaliable but the apps say no internet connection available (browser too).
I read that the Z has the problem too, sometimes.

Any Ideas?
Please look into this matter and help me as the phone is unusable like this.

THX

izzle

i'm facing the same problem since android 7. under android 6 everything worked fine.

IMEI is okay and i did a factory reset. But after leaving/deactivating wifi: no network connection.

When in restart after turning wifi off, it works! But i don't want to restart my phone everytime i leave the house

please fix it as soon as possible umidgi!

Fellovertoday

I have the same problem

Guster

same problem with me

telemak31

I have the same problem  (SFR France)
and MMS aren't sent when connection data is lost

MarcinP

telemak31 replied at 2017-6-10 19:06
I have the same problem  (SFR France)
and MMS aren't sent when connection data is lost

Please check APN and I IMEI details. Otherwise please perform factory reset.

0wn0r

I had this issue as well. I was able to fix it by formating the cache partition from within the recovery. I'll recomend this to anyone before performing a factory reset.

telemak31

0wn0r replied at 2017-6-12 15:24
I had this issue as well. I was able to fix it by formating the cache partition from within the reco ...

and where can i find the manipulation to do that ?
thanks

STIMBOT5000

I've wiped the cache partition - no change
I've performed a factory reset - no change

The fact remains that every time I switch off wifi I have to reset the phone to get data connection back.  If I lose signal I have to reset the phone to get data connection back.

What gives here?

nickscarpenter

i also am having this problem , sometimes entering and exiting flight mode works sometimes only restart , IMEI's are showing correctly

fanfan7110

same problem, no connection after android 7.
Imei OK
clear cache ok
no 3G and no 4G. Just wifi