M89 disconnects voice calls. Registry debug ?

[stha]

Hi all experts.
I'm having trouble with dropped calls on my M89 smartphone running WM6.0

I have made a post with more info here :

http://forum.xda-developers.com/showthread.php?t=524138


I have made a backup-file of the registry with CeRegEditor.

I'm not an expert in registry-settings, so I'm asking for help to debug the registry-file to see if some strange settings are present. Or perhaps you could advise me to some registry-hacks that will help.
The file can be opened in CeRegEditor. (after unzipping)

The phone drops the first call after a soft-reset after 15-20 seconds.
This happens every time. The next calls can sometimes last 2-3 minutes.

As earlier stated it seems like the GSM-module resets. Perhaps because some process/program/service tries to access the GPRS-network.

I also tried to flash the M89 with a chineese version of WM6.1
It seems that this version works a little bit better, but dropped calls still accur. I can't read chineese, so now I'm back with english WM6.0.

Hope you can help me.

Best regards
STHA

[stha]

Hi all.
I finally fixed my M89. It turns out the phone crashes and/or disconnects when the GSM reception is bad/lost. And it is really bad with this phone. The internal antenna is a piece of foil located in the buttom of the phone. Right where you hold your hand when using the phone. This makes the reception really bad.
So I took the phone apart and soldered in a DIY-antenna and put 2 pcs. of these "booster antenna stickers" from Ebay inside the phone.
Since then I never had a crash or dropped call.

Regards
Stha