Peko wrote:

Thanks Phil for the tip! I found the Factory Reset menu

I did the Factory Reset and infinite reboot stopped. The phone remained on version 20161216. I then tried to do the Local update again with 20170223. Same as earlier: phone tried to run the update, but finally the version remains unchaned at 20161216.

I did then the flashing and I am now finally on 20170414 (but lost all data files). I have been loading all the apps and the phone seems to work okey.

HI Peko
Can i ask you what file you used to flash the phone?
thanks

Phil wrote:

Peko wrote:

I did then the flashing and I am now finally on 20170414 (but lost all data files).

Next time you can try to backup your userdata in recovery before flashing (and restore after that).

HI Phil
some questions
How do you backup in recovery?
Can it be done without sd card?
Do you think that a suitable file for local update from firm 20161216 will be released or this firm is too old now?
grazie

Hi mauron,
I used the link on the discussion thread "how to find rom on this board?":

20170414 Local Update File / Flashable: https://mega.nz/#!dLxRSCIS!42alvYGKTr-7 ... F98EPfyWb4

I followed the flashing instructions&files in this thread. The VCom driver installation I had to do quite differently as there was no driver to upgrade in Device Manager. And even after the installation (and reboots) the driver was showing Exclamation mark ie. meaning that it is not functioning. But in the real life the driver was working correctly.
viewtopic.php?f=144&t=54240

mauron wrote:

HI Phil
some questions
How do you backup in recovery?
Can it be done without sd card?
Do you think that a suitable file for local update from firm 20161216 will be released or this firm is too old now?
grazie

In recovery there is a menu entry "backup user data". I guess you will need an SD Card for that.
I tried a local file update from 20161216 to 20170223 but it don't work, so I fear you will have to flash 20170414