Samsung S6 Roaming Problems

[Anonymous]

I am having problems with O2 roaming in Italy and Slovakia. I have a new Samsung S6 on an O2 refresh contract. I have had international roaming and O2 travel activated on my account for over 10 years.

The phone will connect to the international networks but seems to have problems with seamlessly changing  netwroks when one network becomes out of coverage...for example when on TIM if the signal goes it will display Emergency  Calls only.

I then have to manually select anither network  e.g. Wind.

Even if the original network  becomes available I have to manually re-select the network or restart the phone.

I thought the whole concept of roaming was just that..to seamlessly roam between networks.

I have rebooted the phone  and taken out the  SIM card etc.

I have tried it wity wi-fi on and wi-fi off and with data roaming  on and data roaming off.

The problem isn't  a local issue as it happened all over the Amalfi Coast area and then in Slovakia.

Also my wife's  phone would seamlessly roam between networks while she was stood next to me while my phone  displayed Emergency Calls only.

Also I noticed that several networks wouldn't  work with the O2 SIM card...when manually selecting  the network it would take over 2 mins to search then another  30 seconds before  'Unable to Connect-try later' was displayed.

Yet these networks have roaming  agreements with O2- Vodafone Italy and Telecom SK in Slovakia.

O2 customer care insisted it would be resolved by removing the SIM card and restarting  the phone but this doesn't  work.

I have had the latter proble-unable to connect-try later- since moving to Samsung Android phones-first with the S2 then S4 but not the problem of not allowing  seamless roaming.

Any help appreciated!

[MI5 · Accepted solution]

If set to automatic network selection it should switch between networks as you move around.
If it doesn't, it's faulty.

[Anonymous]

Send it to Samsung for proper aftercare as you have a 2 year warranty 

[Cleoriff]

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@MI5 wrote:
If set to automatic network selection it should switch between networks as you move around.
If it doesn't, it's faulty.

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Agree with that. I go to Spain frequently and if Movistar goes down ...my Note 3 connects to Vodafone ES or Orange ES. I never have to do a manual search..

[MI5]

Once you have chosen manually though, you need to go back and select automatic again.

[jonsie]

Sounds like a faulty phone to be honest. Get it sent to Samsung, please don't let o2's repairers loose on it it. As said, in the meantime you need to manually connect to a  network.

[Anonymous]

OK thanks for replies all.