01-10-2015 11:42 AM
29 12
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  1. Bkr11's Avatar
    I'm currently on AT&T and pretty happy with both it and my Lumia 1020. There are a few times, however, where I wouldn't mind having a second phone running Android (I came from a Droid Razr on Verizon). It would seem the Z1s would be a great option due to phenomenal battery life, good quality camera and waterproof, but obviously it isn't carried by AT&T.

    Since I'm not ready to move my entire family from AT&T to T-Mobile for this phone it seems the only way (right now) that I can get a Z1s is to purchase an unlocked T-Mobile variant. Has anybody tried this? I read somewhere as long as the model ends in XXX6 that it should be able to handle the AT&T 4G network. Any insights into when the unlocked version would be available? Any other things I should take into account?

    Thanks.
    01-27-2014 10:16 PM
  2. Ukyo's Avatar
    I'm currently on AT&T and pretty happy with both it and my Lumia 1020. There are a few times, however, where I wouldn't mind having a second phone running Android (I came from a Droid Razr on Verizon). It would seem the Z1s would be a great option due to phenomenal battery life, good quality camera and waterproof, but obviously it isn't carried by AT&T.

    Since I'm not ready to move my entire family from AT&T to T-Mobile for this phone it seems the only way (right now) that I can get a Z1s is to purchase an unlocked T-Mobile variant. Has anybody tried this? I read somewhere as long as the model ends in XXX6 that it should be able to handle the AT&T 4G network. Any insights into when the unlocked version would be available? Any other things I should take into account?

    Thanks.
    AFAIK, the Z1s is a Tmo exclusive and made specifically for Tmo and its frequency bands. I'm sure it'll run on ATT but even if it supports some of ATT's LTE bands, depending on your area, those bands may not be in use. I could be wrong though but you can google the specs. I bought the phone outright and using the prepaid 5GB plan. After 40 days and paying at least $50 per their unlocking policy, I plan on unlocking and trying it on ATT. I won't know until then how it'll run on ATT.
    01-28-2014 03:26 PM
  3. Quantify's Avatar
    This is my plan as well. T-Mobile service is vastly better in nj than it used to be...but I'll put the phone on at&t as soon as I can.

    Sent from my C6916 using Tapatalk
    01-28-2014 09:01 PM
  4. randaddy#AC's Avatar
    I bought the Z1s from t-mobile contract free on 1/22 and bought an unlock code online. Took a few days to receive the code but all's well on AT&T. LTE works great and I actually get better reception than my G2. Hope that helps!
    Bkr11 likes this.
    01-30-2014 03:21 PM
  5. mookster's Avatar
    I don't know about the AT&T LTE, but when I go into roaming areas, I pick up AT&T networks and things keep chugging along. I do pick up AT&T 4G, which is the HSPA if I remember correctly.
    01-30-2014 08:44 PM
  6. skullfreak's Avatar
    So I can buy this phone out right and buy a unlock code and use this phone on att and get LTE with att?
    01-30-2014 08:57 PM
  7. Ukyo's Avatar
    So I can buy this phone out right and buy a unlock code and use this phone on att and get LTE with att?
    Sounds like it. Just know it's 560 or so and not 528. The 528 amt is with a plan. Not sure how much the unlock code is as that varies greatly depending on where u order it from but if someone said they got it unlocked then u should be able to.
    01-31-2014 01:48 AM
  8. daddyd302's Avatar
    AFAIK, the Z1s is a Tmo exclusive and made specifically for Tmo and its frequency bands. I'm sure it'll run on ATT but even if it supports some of ATT's LTE bands, depending on your area, those bands may not be in use. I could be wrong though but you can google the specs. I bought the phone outright and using the prepaid 5GB plan. After 40 days and paying at least $50 per their unlocking policy, I plan on unlocking and trying it on ATT. I won't know until then how it'll run on ATT.
    T-Mobile charges $50 to unlock your phone?????????? I thought it was free since you own your phone when you paided it off.
    01-31-2014 02:46 AM
  9. doublestack1's Avatar
    I bought the Z1s from t-mobile contract free on 1/22 and bought an unlock code online. Took a few days to receive the code but all's well on AT&T. LTE works great and I actually get better reception than my G2. Hope that helps!
    Are you still seeing LTE on AT&T with your Z1s? I am very interested in doing the unlock thing as well. However I want to be 100% sure the Z1s will work flawlessly on ATT. Thanks.

    Posted via Android Central App
    01-31-2014 08:26 AM
  10. randaddy#AC's Avatar
    Are you still seeing LTE on AT&T with your Z1s? I am very interested in doing the unlock thing as well. However I want to be 100% sure the Z1s will work flawlessly on ATT. Thanks.

    Posted via Android Central App
    Yes, seeing the same LTE coverage as my AT&T LG G2. The Z1s uses the same LTE bands as AT&T (4 and 17 I believe) in North America. So you shouldn't have any LTE coverage issues.
    01-31-2014 10:34 AM
  11. randaddy#AC's Avatar
    So I can buy this phone out right and buy a unlock code and use this phone on att and get LTE with att?
    That's what I did, was gonna get the C6906 which also works with ATT LTE but I was worried about warranty problems since Sony doesn't sell that model here.
    All you have to do is add the ATT APN under network settings and you're good to go. LTE, MMS, and voice all works just like any other AT&T device.

    T-Mobile charges $50 to unlock your phone?????????? I thought it was free since you own your phone when you paided it off.
    T-Mobile will only give you the unlock code for free when you meet these 3 requirements:
    Account holder requesting the unlock code has no holds/overdue bills on the account, and has been a customer for at least 40 days.
    Phone has been used on a T-mobile network for at least 7 days (doesn't have to consecutive, 1 call a day is sufficient) .
    You can provide proof the phone has been paid in full.

    Source: My room mate is a T-mobile customer and we tried to get my Z1s unlocked by T-mobile using his sim card.

    This was a hassle for me so I paid $40 for the unlock code online. Sony unlock codes are harder to find/generate so it may take up to 5 business days to receive yours from your unlock code vendor of choice.
    daddyd302 likes this.
    01-31-2014 10:42 AM
  12. doublestack1's Avatar
    That's what I did, was gonna get the C6906 which also works with ATT LTE but I was worried about warranty problems since Sony doesn't sell that model here.
    All you have to do is add the ATT APN under network settings and you're good to go. LTE, MMS, and voice all works just like any other AT&T device.



    T-Mobile will only give you the unlock code for free when you meet these 3 requirements:
    Account holder requesting the unlock code has no holds/overdue bills on the account, and has been a customer for at least 40 days.
    Phone has been used on a T-mobile network for at least 7 days (doesn't have to consecutive, 1 call a day is sufficient) .
    You can provide proof the phone has been paid in full.

    Source: My room mate is a T-mobile customer and we tried to get my Z1s unlocked by T-mobile using his sim card.

    This was a hassle for me so I paid $40 for the unlock code online. Sony unlock codes are harder to find/generate so it may take up to 5 business days to receive yours from your unlock code vendor of choice.
    Thank you. Seems like the best method next to ordering the 6906 from Sony.

    Posted via Android Central App
    01-31-2014 02:34 PM
  13. Bkr11's Avatar
    Thank you very much for the information randaddy. Hope to pick one up the same way you did shortly. Do you mind letting me know the name of the seller (either post or PM) of the code. I saw one on eBay (UK based I believe) who I was going to go through.
    01-31-2014 04:27 PM
  14. Bkr11's Avatar
    Sweet - it worked. Unlocked and rocking out on AT&T...with their great new data plan prices to boot. Going in and setting the APN information was key - no joy for data without this. Glad you posted that above because I was at a loss for while. Thanks again randaddy...
    02-06-2014 07:14 PM
  15. daddyd302's Avatar
    You guys got any speedtest results on AT&T? Fastest I could get on T-Mobile was 24M down and 7M up. On my Ipad mini retina which I use AT&T for I got 66M down and 20M up.
    02-07-2014 03:30 AM
  16. thetuxmask's Avatar
    What are the apn settings you used or where did you find them I want to do this to thanks for your help
    02-07-2014 11:14 AM
  17. Bkr11's Avatar
    The first settings I used were cingular based and didn't work perfectly...I had intermittent losses of data all day today. About an hour ago I switched to the following and haven't noticed a loss of data. Will report back later if it isn't good.

    NAME: ATT Phone
    APN: phone
    Proxy: (not set)
    Port: (not set)
    Username: (not set)
    Password: (not set)
    Server: (not set)
    MMSC: http://mmsc.mobile.att.net
    MMS Proxy: proxy.mobile.att.net
    MMS port: 80
    MCC: 310
    MNC: 410
    Authentication Type: none
    APN type: default,mms,supl,hipri,fota
    APN protocol: IPv4
    Bearer: Unspecified
    02-07-2014 11:22 PM
  18. Bkr11's Avatar
    Just downloaded Ookla Speedtest. Got 18.79 down and 7.20 up on AT&T. Never ran it on T-Mobile...if I put my prepaid card back in later I'll try to do that.
    daddyd302 likes this.
    02-07-2014 11:26 PM
  19. nickywaldo's Avatar
    Where did you go to get your unlock code and how fast was it. I am traveling tomorrow, so need a code fast...
    Thanks,
    nick
    02-08-2014 03:53 PM
  20. Ukyo's Avatar
    Where did you go to get your unlock code and how fast was it. I am traveling tomorrow, so need a code fast...
    Thanks,
    nick
    Besides getting direct from Tmo, nobody can give u with a day but you can try various unlock sites. One may be able to unlock while you're traveling.
    02-08-2014 05:44 PM
  21. TheNamelessMan's Avatar
    I can confirm this works perfectly with att LTE. Bought the phone outright, bought an unlock code online, popped in att Sim, entered unlock code and simply copied my APN settings to the new phone.

    Speed test shows 38 down in north Chicagoland. Awesome phone.
    02-26-2014 04:00 AM
  22. afoon2001's Avatar
    Looking to purchase this model as well, can anyone provide the model number... is it the 6916, 6906...? Thanks!
    03-23-2014 11:08 PM
  23. 05GT's Avatar
    It's 6916.
    03-25-2014 12:25 AM
  24. Jimmy Putts's Avatar
    Hey all,
    I've recently purchased a Z1s (c6916) and have it unlocked. I'm trying to get it to work on AT&T's network but the phone isn't recognizing the sim, could this be a hardware issue?
    08-15-2014 05:50 PM
  25. Bkr11's Avatar
    Mine worked fine, so I'd say possibly. Are you sure it unlocked properly? I'd try a different sim before switching out the phone.
    08-16-2014 01:42 PM
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