Satellites conection lost

[ADY-ULTRAS]

Hi! I'm new here and I need some help from you. I have a Citroen C5 Tourer 2009, with MyWay system. When I bought this car (2 weeks ago) it had 2009-2010 maps and rneg20 firmware. I found to install the latest rneg50 and also the maps 2016-2017. It was working fine but from time to time was self restarting. I also changed some settings from the hidden menu and after a reboot it can't connect to the satellites. Sometimes it can see 1 satellite, but for a short time but it can't localize me on the map, also the sat nav is not working. If I change the view mode from radio to sat nav, it shows me on the field but without any known position. Also, the altimeter is not working. I changed the battery, I left it without it for a while, I've done system reboot and reset to factory settings, but it's the same problem. Can someone provide me the pictures with the hidden menu settings or has a solution?!? Thanks in advance for your help!

[Hell Razor5543]

Hi, and to the Forum. While I cannot help you with your problem, I feel sure that somebody with the right knowledge will pop up and either let you know how to get the settings sorted, or ask you to find out the version number (they will let you know how to find this out), so that they can look up the relevant information for you.

[ADY-ULTRAS]

Can someone who knows how to use Diagbox give some advice in order to fix my issue?!? After a scan with Diagbox it says it doesn't have any faults and I don't know what to do further. Thanks for your help!