No GSM/GPRS connection, only 3G/UMTS

[sroeder]

Hi there,

since the last two ROM/Radio upgrades my trion fails to connect to GSM/GPRS. The 3G/UMTS/HSDPA connection works fine, both for voice and internet. When I try to switch to GSM only or if no 3G is available the device fails to connect. When I use the same SIM in another trion (with the original ROM) everything works fine (GSM & 3G).
This behaviour persists since I upgraded the Radio to 1.54.30.10 and Schaps 4.01, before that I had 1.41 and Schaps 3.3 working fine. Now I downgraded the Radio to 1.47.30.10 and installed Pays ROM (PaysGER215Full.rar). Same result, no GSM connection.

Any ideas?

Thanks,
sroeder

[Mika7012]

Hello.

Check Under , Settings , Phone, Band That

"GSM/UTMS Band" if that Say " AUTO " And not
UTMS (2100+800) .

If that don't help, than i'm clueless.

And yes, If you don't have the "band page" use Schaps Advanced Configuration tool to Enable the "Band page".

/Mika

[sroeder]

The settings were already on AUTO on all fields.

I actually got today a substitute phone after talking to the service staff. The phone simply would not connect to gprs/gsm anymore, even not after installing the original operators ROM. They said it might be a hardware issue.

[uKL]

I have the same problem.. I'm using HTC Hermes and suddenly I've lost GSM connection, only 3G available.. If I set GSM only there is an alert "No service". Is there any solution? I did HR - still nothing..