Infinite reboot - Sony Xperia Z Ultra

Hi all,
I'm facing a strange problem.
With my Xperia Z Ultra, when I insert a virgin mobile France SIM card, the phone goes in an infinite reboot loop... Can't do anything. It's the second SIM card from this carrier that does it.
With a T-Mobile US SIM card, it doesn't do it. But of course, I can't and don't want to use the T-Mobile SIM card in France.
Any thoughts? Our do I have a faulty unit and need to send it back to Hong Kong?
Thanks for your help
Envoyé depuis mon GT-N5110 en utilisant Tapatalk 4

I had the same problem last week in Hungary with my Italian sim, 2 days before I was in Slovacchia without problems.
Came back at home in Italy everything works fine
Sorry but I really don't know why
It s look like a roaming problem
Apn maybe?
Inviato dal mio Xperia Z ULTRA usando Tapatalk 4

Hi danilos2k,
I confirm it seems to be linked with roaming.
I've tried with 3 different sim cards from different carriers and only the ones from MVNO (Virgin mobile and Free mobile when roaming on Orange network in France) have this strange behavior.
Does anybody else has found this strange bug?
Envoyé depuis mon GT-N5110 en utilisant Tapatalk 4

Good news,
The recent update for HK phones seems to have solved the problem.
I can use my phone with my Virgin Mobile France sim card and it doesn't rebbot anymore...
I'm a happy camper!!!
palmerfr said:
Hi danilos2k,
I confirm it seems to be linked with roaming.
I've tried with 3 different sim cards from different carriers and only the ones from MVNO (Virgin mobile and Free mobile when roaming on Orange network in France) have this strange behavior.
Does anybody else has found this strange bug?
Envoyé depuis mon GT-N5110 en utilisant Tapatalk 4
Click to expand...
Click to collapse

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Sent from my GT-I9205 using XDA Premium 4 mobile app
AgentVanThomas said:
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Sent from my GT-I9205 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I never had the sim error on kitkat though, only stock rom.
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Sent from my GT-I9205 using XDA Premium 4 mobile app
Yeah, and the simtray is just under the mem card slot. Its one unit, samsung cheaped out on that.
I ordered the part, will solder it. Will update when its complete
Sent from my GT-I9205 using Tapatalk
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4G and Global Version

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Enviado de meu Redmi Note 4 usando Tapatalk
Only one sim at the same time can have lte
korenisko said:
Only one sim at the same time can have lte
Click to expand...
Click to collapse
This ^^^
ferbricos said:
Hi
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Enviado de meu Redmi Note 4 usando Tapatalk
Click to expand...
Click to collapse
Perfectly normal.... Have a nice weekend
Inviato dal mio Redmi Note 4 utilizzando Tapatalk
Can i put sim2 with LTE, not Sim1?
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Enviado de meu Redmi Note 4 usando Tapatalk
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Enviado de meu Redmi Note 4 usando Tapatalk

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Sent from my SM-N950U using Tapatalk
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Sent from my SM-N950U using Tapatalk
Limeybastard said:
Should I be using the new sim card or putting it in another way, is there any benefit of using the new sim that came with the note 8 ?
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Click to expand...
Click to collapse
New SIM card works in all countries now it will auto connect you to a matching frequency for internet and phone to work without WiFi when abroad
XclassCod3rX said:
New SIM card works in all countries now it will auto connect you to a matching frequency for internet and phone to work without WiFi when abroad
Click to expand...
Click to collapse
So it would be best to call T Mobile and have the new sim connected with my existing number ?
Sent from my SM-N950U using Tapatalk
XclassCod3rX said:
New SIM card works in all countries now it will auto connect you to a matching frequency for internet and phone to work without WiFi when abroad
Click to expand...
Click to collapse
My T-Mobile SIM that I had since 2013 always worked when traveling overseas. Never had an issue with either data or phone calls.

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