Xperia M loses network on WCDMA/GSM auto mode

[msynilo]

Hi there,

Xperia M usually loses network while calling on WCDMA/GSM auto mode. 

After a few seconds of a call phone freezes, a caller does not hear me, I do not hear them either.

After this phone becomes unreachable for several minutes. However the network coverage shows as 100%.

I know you might advise to switch to GSM mode only, but this is not a solution. I have bought 3G phone, and I need 3G.

in order to be back to network I have to reboot the phone.

This is surely a bug of loosing the network while auto-switching WCDMA/GSM modes automatically.

Dear Support team, any solutions?

thank you.

Best, Max

[Uliwooly]

The first thing you should try is to repair your phone with SUS or PCC, also remove any taskillers, antivirus apps 

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[msynilo]

thanks, uliwooly . Done this. Still no changes. This seems a hardware issue...

do not know what to do. Sony quality is downgrading.

[msynilo]

Dear Xperia support, please do something with software! Any promises of updates?

yesterday I have missed 5 important callers due to this stupid problem in auto mode!

Again, switching to either permanent WCDMA or GSM is not an option (WCDMA is not covering all the places, GSM speed is not enough for sure). I do need AUTO mode working correctly, sure other users as well.

[msynilo · Accepted solution]

Ok, as no solution from Sony support provided, the only solution is to sell the phone.

Done.

Happy ex-customer.

[SamOza]

I also facing the same problem. Network drop on both the sim. 

Only one solution sell the phone...