Cyanogenmod - no Whatsapp backup possible

m_pa

Member
Apr 2, 2010
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Krustyland
Hi,
I can't perform a Whatsapp backup since January this year, regardless if Google Drive Backup is checked, if the Whatsapp app is stored in the local or on sd card memory, automatic backups are being cancelled, too.
After I hit "Backup", the Dialogue "Messages are being backed up" shows up, which closes after 10 sec without any error message.
I tried to contact the WA Support, but they insist that my S4 is rooted (which it isn't, maybe because of the custom ROM I use).

I have flashed my Samsung I9505 in January this year from CM 12.1 to CM 13. At the beginning, the phone ran smoothless except BT. After a while, WiFi stopped working as well. I tried to flash the CM 12.1 backup and radios without any success, just a new mainboard helped. I installed my CM 12.1 backup from January via TWRP from my old mainboard, which ran without any errors on it (after a fullwipe on the new one).
The phone works great, except the WA backup.
WA gets always updated to the current version, I have ~1,2 GB free internal memory, I tried to update to the latest CM 12.1 5.1.1 version from 12/26/2015, perform a backup via 4G, 3G, Wifi, with an without Google Backup checked, cleared the cache and wiped Dalvic Cache, there is no app deactivated.
I use Baseband I9505XXUHOD7 and Kernel: 3.4.107-cyanogenmod-gab9afd6clyde.
 

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