Hi all,
I bought an HTC One X AT&T recently. On a trip to Spain installed a Vodafone sim card. The voice connection worked perfectly, but I could not use the 3G. The same sim card work worked perfectly in my wife's iPhone 4s. Back to Brazil, I'm trying to use a Oi sim card and have the same problem. I checked with Oi operator and it uses 2100 mhz for its 3G network. In both cases I got an 4G icon (not 3g) on the too bar.
Do I have a real problem with 3G hardware of my phone or I'm missing something? Is there a way to test 3G radio?
Thanks for any help!
You have to manually enter the APN info for the carrier in order to get data and MMS.
Assume you are SIM unlocked, as if you were not voice calling should not work either.
I've used the AT&T One X in Germany a few times and had no issues with HSPA+ data on the 2100 MHz band.
Bougt a Nexus 5 32GB D821 in December in England on holiday. When i came back to Norway the 3g/4g network worked fine but I dont get any signal when i switch to 2G.
I live on the coast so sometimes I lose 3G signals and then I have no signals at all.
I have testet the sim card on my old S3 and there it works fine. Since i bought it in England I have no warrenty and no one will fix my phone.
Is it an hardware problem or software problem?
Hey guys,
So I have the Z3 Dual, but where I live, we only get 3G network and no GSM, which brings me to my question:
Is anyone working towards a hack to allow my device to run BOTH my Telstra SIM cards in LTE mode without one reverting to GSM?
Thanks in advance,
Phil
Really? No gsm signal or 2g. I think 2g structures are the most basic one that every carrier Has. BecAuse if 3g becomes congested, the subscriber can fall back to 2g. Anyway i guess no hack is on going because of the rooting issues with this plus i think it's a hardware limitation. 2 simcards cannot use 1 modem (the 3g/4g) because that would tax a lot of battery power
Sent from my D6633 using XDA Free mobile app
There are 2 radios in the phone I'm suspecting, since both SIM's run different IMEI numbers (1 per radio) if you check in About Phone/Status and check the 2 SIMs.
So I can't see why this is a limitation.... renders the phone worthless for what I wanted it for (Work sim and Personal sim),
And yes, where I live, there has never been GSM, it was CDMA before the towers were upgraded to 3G (Central Wheatbelt is Western Australia).
Dysstatic said:
There are 2 radios in the phone I'm suspecting, since both SIM's run different IMEI numbers (1 per radio) if you check in About Phone/Status and check the 2 SIMs.
So I can't see why this is a limitation.... renders the phone worthless for what I wanted it for (Work sim and Personal sim),
And yes, where I live, there has never been GSM, it was CDMA before the towers were upgraded to 3G (Central Wheatbelt is Western Australia).
Click to expand...
Click to collapse
When you use the first SIM with LTE the second has no signal?
I can't understand if the second sim limit is only for connection or also for 3G bands.
I mean: you can still use the second line on a 3G network only for calls and SMS without using data connection or not? The second line is limited on 2G bands?
thanks for answers I ordered a Z3 Dual 2 days ago
theskig said:
When you use the first SIM with LTE the second has no signal?
Click to expand...
Click to collapse
Correct, because the second sim drops down to GSM, which we don't have in rural Western Australia. And vice versa, set the second SIM to LTE/WCDMA and the first SIM drops down to GSM. Meaning, you cannot run 2 SIM's side-by-side unless you live in an area that has GSM/2G still.
theskig said:
I can't understand if the second sim limit is only for connection or also for 3G bands.
I mean: you can still use the second line on a 3G network only for calls and SMS without using data connection or not? The second line is limited on 2G bands?
thanks for answers I ordered a Z3 Dual 2 days ago
Click to expand...
Click to collapse
So, you choose either SIM as your data sim. Whichever you choose, that sim runs in LTE mode and the other SIM is used for calls/sms only.
SMS and phone apps both have 2 send buttons labelled 1 and 2, so you can send messages or make calls from either SIM at the press of a button. But only 1 SIM has data active, that is the SIM running in LTE mode.
I have messaged Sony Mobile Developers regarding this, the reply was:
From: [email protected]
Hi Phil,
Thanks so much for your email. We will forward the dual SIM issue you have identified to our internal teams for further investigation.
Best regards,
Developer World
Hope this helps
Regards,
Phil
Dysstatic said:
Correct, because the second sim drops down to GSM, which we don't have in rural Western Australia. And vice versa, set the second SIM to LTE/WCDMA and the first SIM drops down to GSM. Meaning, you cannot run 2 SIM's side-by-side unless you live in an area that has GSM/2G still.
So, you choose either SIM as your data sim. Whichever you choose, that sim runs in LTE mode and the other SIM is used for calls/sms only.
SMS and phone apps both have 2 send buttons labelled 1 and 2, so you can send messages or make calls from either SIM at the press of a button. But only 1 SIM has data active, that is the SIM running in LTE mode.
I have messaged Sony Mobile Developers regarding this, the reply was:
From: [email protected]
Hi Phil,
Thanks so much for your email. We will forward the dual SIM issue you have identified to our internal teams for further investigation.
Best regards,
Developer World
Hope this helps
Regards,
Phil
Click to expand...
Click to collapse
Thanks for infos!
That's weird! If I live in a place with only 2G or only 3G network I cannot use 2 sim cards!
But I remember reading on online user manual that the 2 sims network settings are separated, right? If you force both on the right frequency?
In a few days I'll receive the phone and I'll help you with some tests
theskig said:
Thanks for infos!
That's weird! If I live in a place with only 2G or only 3G network I cannot use 2 sim cards!
But I remember reading on online user manual that the 2 sims network settings are separated, right? If you force both on the right frequency?
In a few days I'll receive the phone and I'll help you with some tests
Click to expand...
Click to collapse
Correct, both sims wont run on 3G at the same time..
Both sims WILL run on 2G at the same time though (GSM).
Hii Freinds,
I am facing strange problem, whenever i insert airtel 4g sim, I am not able to make call and if some calls me back get not reachable error
but 4g data service is working fine. BUT IF INSERT SAME SIM IN OTHER 4g COMPATIBLE handset call and data is working smoothly.
3g and 2g network working flawlessly.
is there any solution for the same?????????????
Hi
Maybe you can help me.
I used my M808 2 years. In 2 days i can't call and sms and don't have internet when i have 3G or 4G. When i force 2G i can call and sms. In 3G i can see range but i cant call to anybody.
Do you have idea how i can fix it?
I done hard reset and nothing, I try my SIM card in other smartphone and there i had 4G ok.
Will Change rom help?
Lobotom_ said:
Hi
Maybe you can help me.
I used my M808 2 years. In 2 days i can't call and sms and don't have internet when i have 3G or 4G. When i force 2G i can call and sms. In 3G i can see range but i cant call to anybody.
Do you have idea how i can fix it?
I done hard reset and nothing, I try my SIM card in other smartphone and there i had 4G ok.
Will Change rom help?
Click to expand...
Click to collapse
This could be caused by a few things.
1. Hardware fault.
2. Your carrier (SIM Provider) switched to a none supported band or bands. The M808 does not support LTE band 20 (800mhz) which is common in Europe
Supported Network Bands:
(2G) GSM 850/900/1800/1900MHz
(3G) WCDMA 850/900/1900/2100MHz
(4G) FDD-LTE B1/B3/B7/B8/B28
3. APN settings although this would not affect voice calls
4. Your carrier Decided to block your phone by IMEI from using anything other than 2G and yes they do sometimes do this O2 did it to me some years ago now with absolutely no warning or reason given so I will never ever use them again the arrogant s****
5. Duplicate IMEI someone is using a phone with the same IMEI as yours on the same network. This can cause all kinds of strange stuff to happen. Again happened to me when I restored the incorrect backup. Both mine and my sons phone ended up with the same IMEI . It took ages to work out what was going on with that one
I would suggest you first try another sim card from another provider that use's the supported bands for 4G (3UK) if in the UK it used to work fine on my Old M808.
I done some tests.
I put my sim card to other phone - everything is ok.
I put other provider sim card to my phone - only 2G is working properly.
I done flashing - no improvement.
Im afraid hardware fault.
Any more sugestions?
Lobotom_ said:
I done some tests.
I put my sim card to other phone - everything is ok.
I put other provider sim card to my phone - only 2G is working properly.
I done flashing - no improvement.
Im afraid hardware fault.
Any more sugestions?
Click to expand...
Click to collapse
Full Firmware Upgrade using SPFlashTool If that dont fix it then it's time for a new Phone see the original Infocus V5 M808 Thread for ROM s and tools.
https://forum.xda-developers.com/general/device-reviews-and-information/infocus-v5-mt6753-5-2-fhd-2gb-ram-16gb-t3341297
MM ROM's and Recovery's https://forum.xda-developers.com/showpost.php?p=67345310&postcount=182