Forum Discussion

mausmang's avatar
mausmang
Newbie Caller
Hace 9 años

Teléfonos desbloqueados

I am having some issues with unlocked phones.

 

I have several of devices and none of the work properly on T-Mobile.   When I call support they basically blow me off because I am not using a T-Mobile branded handset.   They also assume that when you say "unlocked" phone that you have taken another carriers phone and had it SIM unlocked and are taking the phone from another carrier to T-Mobile.

 

What support also does not seem to get is that there is a wide variety of factory unlocked phones that are designed for the North American GSM frequencies and some of these phones actually have features such as Band 12, VOLTE and WiFi calling.

 

2 phones I am having trouble with specifically are the BLU R1 HD and the Alcatel Pixi4 (5).

 

The BLU does not support Band 12/Volte.   The Alcatel does support Band 12.Volte.

 

The Alcatel seems to work fine when it is on a 4G LTE single and the VOLTE indicator is lit.

 

When these phones are showing that they are on a 4G signal, when you call the phone,the phone sometimes will not ring.   This is not consistent.  About half the time the phone will ring, but the other half the time the phone does nothing and the call rolls to voicemail.

 

When the phone is called you can watch the signal icon change from 4G to 3G and the phone MIGHT begin to ring.   Sometimes the 4G indicator fails to change at all.   I have this issue at home, in the car and at work.   I do not think this is a signal quality issue.

 

Both phones have no problem making outbound calls.

 

I setup a new line of service on a new SIM and I have the same issue with the new number/account.  I also borrowed a T-Mobile SIM from a buddy, and it had the same issue.

 

I went to ATT and setup a new prepaid account with them and these phones work perfectly. I would move my business to ATT but their data speeds are far too slow.

 

What can be done to rectify this issue?   I think there is a problem with the 4G/3G handoff in my area, but I can't get T-Mobile to take this issue seriously.

  • Hey there!  Just checking, you are a current T-Mobile customer and having problem with your service using an unlocked Moto G7?  Have you checked your APN settings to make sure everything is set up properly?  (This may be located under Settings>Network & Internet>Mobile Network>Advanced>Access Point Names)

    You should have an APN that is labeled as T-Mobile (or T-Mobile US LTE or something similar).  If you don't, you'll want to add it- select the big plus sign (or if you don't see one, tap the 3 dots in the upper right hand corner and select "Add New".  Input the following:

    • APN: fast.t-mobile.com
    • Proxy: No configurado
    • Puerto: No configurado
    • Nombre de usuario: No configurado
    • Contraseña: No configurado
    • Servidor: No configurado
    • MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
    • Proxy MSM: No configurado
    • Puerto MSM: 80
    • MCC: 310
    • MNC: 260
    • Tipo de autenticación: No configurado
    • Tipo de APN: default,supl,hipri,fota,mms
    • Protocolo de APN: IPv6
    • Protocolo de roaming del APN: IPv4
    • APN enable/disable: Activado
    • Tipo de MVNO: Ninguno
    • Valor MVNO: No configurado
  • The problem is not your phone; it is greedy T-Mobile.

    I have 2 unlocked phones with T-mobile and those 2 all have multiple issues with T-Mobile network.

    Their functions do not work; they lose connection and network; constantly getting no Notwork.

    When I call T-Mobile, they keep trying to put the blame on Non-T-mobile phone.  I have to call their technical support every week. Only the phone that I brought from them functions properly.

    The solution: TO BUY T_MOBILE BRANDED PHONES

    By selling their own version of phones at full retail price, they make extra money.

    T-Mobile is turning into a corrupt company. it is like you buy a Ford car and have to buy gasoline from Ford approved gas stations.

    They advertise to bring your phone to us and you can use it; that is false advertising.

    I hope soon, a good attorney takes T-Mobile to court.

  • landonloco's avatar
    landonloco
    Transmission Trainee

    Well I had a blue phone and also had issues with it on the t mobile network everything worked fine except data if I had less than three bars the internet pretty much was unusable it was an Blu energy which was an 4G only device. Just as you thought blu phone worked better on AT&T than on t mobile I was so eager to rid of it I brought an LG K7 no issues at all.

  • landonloco's avatar
    landonloco
    Transmission Trainee

    I live in Puerto Rico not in the states so this isn't a tmo issue it's more device related

  • dek0's avatar
    dek0
    Network Novice

    Bought an unlocked Moto G7 phone recently and am having signal problems. Really don't understand, nor do I want to, most of this thread.  Can anyone tell me which carrier might work with my new phone?

  • Hey there!  Just checking, you are a current T-Mobile customer and having problem with your service using an unlocked Moto G7?  Have you checked your APN settings to make sure everything is set up properly?  (This may be located under Settings>Network & Internet>Mobile Network>Advanced>Access Point Names)

    You should have an APN that is labeled as T-Mobile (or T-Mobile US LTE or something similar).  If you don't, you'll want to add it- select the big plus sign (or if you don't see one, tap the 3 dots in the upper right hand corner and select "Add New".  Input the following:

    • APN: fast.t-mobile.com
    • Proxy: No configurado
    • Puerto: No configurado
    • Nombre de usuario: No configurado
    • Contraseña: No configurado
    • Servidor: No configurado
    • MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
    • Proxy MSM: No configurado
    • Puerto MSM: 80
    • MCC: 310
    • MNC: 260
    • Tipo de autenticación: No configurado
    • Tipo de APN: default,supl,hipri,fota,mms
    • Protocolo de APN: IPv6
    • Protocolo de roaming del APN: IPv4
    • APN enable/disable: Activado
    • Tipo de MVNO: Ninguno
    • Valor MVNO: No configurado
  • TPNY's avatar
    TPNY
    Network Novice

    Dear Magentatechie,

     

    I hope that you are still on this community chat.

    I have an unlocked Samsung, purchased in Asia, from a Samsung store.  When I put the tmobile SIM into it, I sometimes get a 4GLTE signal, but most often it is either E or no signal at all.

    I tried following your suggestion.  First, I added a new APN as per your details. The phone did not save it.  

    Since there was already an APN with "fast.t-mobile.com", I edited it. I added the MMSC, and made a few other changes as per your instructions.  I saved it.  It has saved correctly,  But the phone does not allow me to select it.  So now, the phone has no data signal at all !!!!

     -- update --

    I followed the instructions from T-Mobile’s BYOD page. https://www.t-mobile.com/support/devices/not-sold-by-t-mobile/byod-t-mobile-data-and-apn-settings

    I was able to get the data connection back.  However, the signal is still just E.

     

    Any help is much appreciated.