Electrum portable doesn't sync with Android app

[kumax]

Hello there! I hope somebody could help me with my problem.
I tried to sync my Electrum wallet with the official Android app, but without any success. First I installed an Electrum 2.6.4 portable for Win (I'm on Win 8.1 64bit) and an Android app downloaded directly from Google Play. I've inserted the seed to the mobile app (yes, I'm sure it is correct, I have checked it few times), but it still shows zero amount of coins, no transaction history or any of my addresses.
I activated the plugin for syncing labels in both of the devices, I forced to upload the sync files, I tried to switch servers, I also tried to update my wallet to the newest version (2.7.11), but nothing has changed.
Any ideas what's wrong?  
EDIT: I've installed Electrum on my second PC and it has synced, so the problem is probably only with the Android app.. but still don't know where.. 

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[kumax]

So, the problem is solved. Don't know what was wrong, but complete uninstall, restart of the phone and clean new installation of the newest relase has helped. I should have known that "turn off - turn on" will do the job.