---moved my original post to here.
http://forum.xda-developers.com/showthread.php?t=2533347
Need help on at&t network.
Recently i purchased one dual-core/dual-sim cellphone by one Chinese manufacture. It's claiming 4-band GSM, 850/900/1800/1900.
But when i insert att sim card, it always has 'Emergency calls only'. While with T-mobile sim card, it can be connect to T-mobile quickly.
As i know, TMB has 2G 1900 coverage, so as At&t. So i assume that this is not frequency issue. And i am pretty sure that this cellphone does have any 'lock' problem since all phone in China doesn't lock.
It took me a few days searching the solution but no luck. Network operators is grayed out when with att sim card.
This is what i'v tested:
-ATT, H2O prepaid card, no help.
-Changed the APN, no help
Then i go further, modified 'BP' firmware, like changing QCN (it's Qualcomm chipset) item 1877 according to this post, http://forum.xda-developers.com/show...1521355&page=7.
But still no att.
So i am just looking for help from xda. for now, i can't tell what's the issue is.
I can provide more info if someone has some thought.
After several long calls with Verizon and help from Motorola insiders, I have been given to understand that:
1. Droid Maxx if not activated on Verizon, before leaving US, cannot be used on other carriers (say in Europe or Asia).
The reason is the SIM unlock cannot be done by the customer support since they won't see the device in their network if it is not activated first.
2. The activation cannot happen outside US, since Verizon does not have a network.
So bottom line is get the device activated before you import it from US.
Now, my Droid Maxx is locked to Verizon. I know the boot loader can be unlocked. Will this help me in flashing something that can get rid of the SIM lock that Verizon has in place.
My device is an employee edition so perhaps there was some extra protection added there by Verizon.
Please help.
I do not have a Maxx, but I'm replying because you PM'd me asking to take a look at this thread..
It has been my experience that Verizon's 4GLte phones are sim unlocked (on the GSM side) out of the box. I thought that was a condition of VZW's 700Mhz spectrum auction win? One potential issue is does the phone support the needed bands out of the box (think Bionic where a hack was needed to enable bands needed for T-mobile).
That being said, if your Maxx is truly SIM LOCKED, then unlocking the bootloader wont help you SIM unlock, nor will flashing a 3rd party Rom after unlocking the bootloader.
where are you located, and who is your carrier? Do they use CDMA for voice, or GSM? What happens when you put a non-VZW sim in the phone?
KidJoe said:
I do not have a Maxx, but I'm replying because you PM'd me asking to take a look at this thread..
It has been my experience that Verizon's 4GLte phones are sim unlocked (on the GSM side) out of the box. I thought that was a condition of VZW's 700Mhz spectrum auction win? One potential issue is does the phone support the needed bands out of the box (think Bionic where a hack was needed to enable bands needed for T-mobile).
That being said, if your Maxx is truly SIM LOCKED, then unlocking the bootloader wont help you SIM unlock, nor will flashing a 3rd party Rom after unlocking the bootloader.
where are you located, and who is your carrier? Do they use CDMA for voice, or GSM? What happens when you put a non-VZW sim in the phone?
Click to expand...
Click to collapse
Thanks Mark.
The phone Droid Maxx does support these bands since there are others who are using the same phone on GSM networks in the country.
The networks in India are:
2G capabilities GSM 900, GSM 1800
3G capabilities UMTS 2100
4G capabilities LTE 2300 (this one won't work with the phone, plus my carrier does not have it either)
The CDMA is CDMA 2000 - but I have not been able to try with a CDMA SIM, but that one has a higher probability of working.
When I put a non-VZ SIM, and set to Global mode, it does not detect any signal and the search network does pretty much nothing. The automatic mode tries to connect but then throws an error saying "can't connect to this network at this time"
I am using a brand new nano SIM card (which now is back in my Moto Defy with an adapter.)
Earlier I had a normal SIM converted to a nano SIM and that one did not work, but after I put in APN manually, I was able to access data.
I tried another user's cut-nano SIM and that one worked for data out of the box (another GSM provider).
Ditto for me, but I am using DroidMini... I also have DroidMAXX which is working great (even unlocked its BL and rooted it)...
I am also from India... Using it in GSM networks... I may get one Nano CDMA SIM to test later and will report here for sure...
Thanks...
kanagadeepan said:
Ditto for me, but I am using DroidMini... I also have DroidMAXX which is working great (even unlocked its BL and rooted it)...
I am also from India... Using it in GSM networks... I may get one Nano CDMA SIM to test later and will report here for sure...
Thanks...
Click to expand...
Click to collapse
Well, we have interacted on Rimweb recently.
The radio on the Droid series is the same. The difference between the mini and the maxx in your case is that the mini has never been activated on VZ network and hence it is SIM locked. Whereas, the Maxx would have been purchased as a used item (perhaps just activated and then sold off?). So that takes care of the SIM unlock part.
Yesterday I spend around 60 minutes with global support, VZ.
I escalated the issue to the supervisor.
He checked and said that the IMEI is clean and not in any sort of negative list. So there is nothing else that they can do.
He also said, the phones are unlocked by default for global use.
Obviously they don't want to dig deeper into why three phones are not working on GSM in India.
I am now running out of avenues. Does anyone have some debugging tool which can log what is happening when the phone tries to log on to the network?
s_u_n said:
Thanks Mark.
The phone Droid Maxx does support these bands since there are others who are using the same phone on GSM networks in the country.
The networks in India are:
2G capabilities GSM 900, GSM 1800
3G capabilities UMTS 2100
4G capabilities LTE 2300 (this one won't work with the phone, plus my carrier does not have it either)
The CDMA is CDMA 2000 - but I have not been able to try with a CDMA SIM, but that one has a higher probability of working.
Click to expand...
Click to collapse
The current Droid Maxx that Verizon sells supports the following..
LTE Band 13/4 700/1700
EDGE/GSM: 850/900/1800/1900,
HSPA/UMTS: 850/900/1900/2100 (download speeds to 42.2 Mbps, upload speeds to 5.76 Mbps
From what you listed, the Maxx should get GSM/Edge/HSPA/UMTS coverage there. And of course, no LTE.
The CDMA side of the Verizon phones is still "locked" so I also would not expect CDMA to work. In other words, if your carrier NEEDS CDMA, stop trying.
s_u_n said:
When I put a non-VZ SIM, and set to Global mode, it does not detect any signal and the search network does pretty much nothing. The automatic mode tries to connect but then throws an error saying "can't connect to this network at this time"
I am using a brand new nano SIM card (which now is back in my Moto Defy with an adapter.)
Earlier I had a normal SIM converted to a nano SIM and that one did not work, but after I put in APN manually, I was able to access data.
I tried another user's cut-nano SIM and that one worked for data out of the box (another GSM provider).
Click to expand...
Click to collapse
I've been through this with some trying the Moto X in India, and I've been through it while trying my T-Mobile and ATT sim's in my Verizon Moto X.
From what you are describing, it sounds like your APN settings for your carrier on the phone are not set right.
Example... When I put my T-Mobile SIM into my Verizon Samsung Galaxy S4, I get "unknown sim" and bars, but no network connectivity. Nothing works. By going into the mobile network settings on the phone and adding an APN with the T-Mobile settings, features like calling, SMS, data, etc. start working. I have had occasions where I thought I had the APN right, as calls and data worked, but MMS only partially worked (would send but not receive). When I do have the settings right, everything works. Similar thing happens on my Moto X with T-Mobile SIM.
---------- Post added at 07:12 AM ---------- Previous post was at 07:06 AM ----------
s_u_n said:
Yesterday I spend around 60 minutes with global support, VZ.
I escalated the issue to the supervisor.
He checked and said that the IMEI is clean and not in any sort of negative list. So there is nothing else that they can do.
He also said, the phones are unlocked by default for global use.
Obviously they don't want to dig deeper into why three phones are not working on GSM in India.
I am now running out of avenues. Does anyone have some debugging tool which can log what is happening when the phone tries to log on to the network?
Click to expand...
Click to collapse
Unless you have an active account with Verizon, and are trying to use their service when traveling, Verizon wont help you. In other words, unless you are trying to get your Verizon phone, working on Verizon's Global Roaming service, on your currently active Verizon account, they wont help you.
Even if you are a Verizon customer who is just traveling and popped out your VZW SIM in favor of using a local prepay sim to save data/voice costs, once you pop that VZW SIM out, they wont assist.
But you have received confirmation of what I said.. the GSM side is unlocked.
The SIM you are trying to use is from a GSM India carrier? As long as they only use GSM (no CDMA required), your only hope will be working with them. Telling them your phone is SIM Unlocked and going from there. Or finding a local message board for the carrier, and hope people are discussing use of "3rd party" phones, and you might get some help there.
I really think it will come down to the APN settings for the GSM carrier not being correct on the Maxx.
I can't offer any more than that. Sorry.
KidJoe said:
The current Droid Maxx that Verizon sells supports the following..
LTE Band 13/4 700/1700
EDGE/GSM: 850/900/1800/1900,
HSPA/UMTS: 850/900/1900/2100 (download speeds to 42.2 Mbps, upload speeds to 5.76 Mbps
From what you listed, the Maxx should get GSM/Edge/HSPA/UMTS coverage there. And of course, no LTE.
The CDMA side of the Verizon phones is still "locked" so I also would not expect CDMA to work. In other words, if your carrier NEEDS CDMA, stop trying.
Click to expand...
Click to collapse
I have now put in a CDMA SIM card, but run into another problem with that. I will activate that SIM on another phone and then pop it in the Maxx again and check. But CDMA should work fine as reported by other users.
But the problem is the GSM part, because that is what we need to get working.
Unless you have an active account with Verizon, and are trying to use their service when traveling, Verizon wont help you. In other words, unless you are trying to get your Verizon phone, working on Verizon's Global Roaming service, on your currently active Verizon account, they wont help you.
Click to expand...
Click to collapse
That is bad on the part of Verizon. I have purchased a Verizon device off-contract and that device is a global one. So I am entitled to some support from them even if I am without a service plan.
The SIM you are trying to use is from a GSM India carrier? As long as they only use GSM (no CDMA required), your only hope will be working with them. Telling them your phone is SIM Unlocked and going from there. Or finding a local message board for the carrier, and hope people are discussing use of "3rd party" phones, and you might get some help there.
Click to expand...
Click to collapse
Yes. Local carrier. And for now, there are three such XDA members who have been facing the same issue. In one case, a member was able to make calls and receive calls and also use data. Then after a few minutes, the SIM invalid message popped up.
I really think it will come down to the APN settings for the GSM carrier not being correct on the Maxx.
Click to expand...
Click to collapse
APN settings are pretty easy. I did that with my earlier SIM and I got data working. There was no voice, so I gave that SIM back to the carrier and got a brand new nano SIM. Now, nothing works. The old and new SIM are for the same number and same service provider.
Click to expand...
Click to collapse
s_u_n said:
APN settings are pretty easy. I did that with my earlier SIM and I got data working. There was no voice, so I gave that SIM back to the carrier and got a brand new nano SIM. Now, nothing works. The old and new SIM are for the same number and same service provider.
Click to expand...
Click to collapse
Right, you got just DATA working with the APN settings, but the correct APN settings are also needed for SMS, MMS, Phone calls, etc.
I've had an issue where I had voice but no data, and it was related to APN. I've had an issue where I had voice, SMS, data but no MMS, again, it was related to APN settings for the carrier you are using.
So good luck!
the problem we sorted out to get gsm working in india first the phone must be activated on usa to get it work on india so can anyone help us > @s_u_n
So, after using the phone for a week on GSM with all application updates installed, I can safely state that
1. Verizon activation is not needed for non-VZ networks to work (at least outside US).
2. A full FXZ was installed and it probably solved the modem configuration mess that the phone might have been. Perhaps it unlocked something?
3. Four corner activation bypass method was used (as described in earlier Motorola phones).
Either 2 or 3 solved the problem
There was nothing to do with APN. Data works even without any APN settings out here, just like on my Motorola Defy.
I was on a trip recently and I turned off LTE through quick tile because the place I was staying at did not have LTE. Now, I seem to be stuck on HSPA.
I reset network settings and even did a complete wipe of everything and I am still stuck on 3G. I have Preferred network type set to LTE (recommended). I am using the ATT LTE access point (screenshot attached).
Any ideas? Any way to check if it's hardware of software? I am running 44S.
I used to have LTE here and my gf's iPhone 6 has LTE in the same location.
tehcypress said:
I was on a trip recently and I turned off LTE through quick tile because the place I was staying at did not have LTE. Now, I seem to be stuck on HSPA.
I reset network settings and even did a complete wipe of everything and I am still stuck on 3G. I have Preferred network type set to LTE (recommended). I am using the ATT LTE access point (screenshot attached).
Any ideas? Any way to check if it's hardware of software? I am running 44S.
I used to have LTE here and my gf's iPhone 6 has LTE in the same location.
Click to expand...
Click to collapse
I'd think the only reason it'd be hardware is if something went belly up. Seems doubtful to me as bard hardware is fairly rare. More likely software. A few times I've lost LTE after changing out my sim card, and only the phone company doing some type of reset has 'fixed' it. Not often, but enough to be a PITA.
tehcypress said:
I was on a trip recently and I turned off LTE through quick tile because the place I was staying at did not have LTE. Now, I seem to be stuck on HSPA.
I reset network settings and even did a complete wipe of everything and I am still stuck on 3G. I have Preferred network type set to LTE (recommended). I am using the ATT LTE access point (screenshot attached).
Any ideas? Any way to check if it's hardware of software? I am running 44S.
I used to have LTE here and my gf's iPhone 6 has LTE in the same location.
Click to expand...
Click to collapse
Add "hipri" under APN Type, save, reboot & see if that helps. :fingers-crossed:
Put your sim in your gf iPhone and let it get an Att signal then put the sim back in the opo that's what I did with my phone and it worked
Sent from my A0001 using XDA Free mobile app
nasseem said:
Put your sim in your gf iPhone and let it get an Att signal then put the sim back in the opo that's what I did with my phone and it worked
Sent from my A0001 using XDA Free mobile app
Click to expand...
Click to collapse
I tried that. I also put my sim in other OPO and it got LTE. I get LTE with my sim card on OPO thats usually on t-mobile (but his sim did not get LTE on my phone). I also tried my SIM in a nexus 5 and that got LTE as well.
Im fairly sure its hardware failure
tehcypress said:
I tried that. I also put my sim in other OPO and it got LTE. I get LTE with my sim card on OPO thats usually on t-mobile (but his sim did not get LTE on my phone). I also tried my SIM in a nexus 5 and that got LTE as well.
Im fairly sure its hardware failure
Click to expand...
Click to collapse
if t mobile lte works on your opo and not at&t, im sure it's at&t issue.. Do you have a global/international opo unit?
apartmentpasig said:
if t mobile lte works on your opo and not at&t, im sure it's at&t issue.. Do you have a global/international opo unit?
Click to expand...
Click to collapse
I was not able to get LTE with the T-Mobile sim. However the other opo got LTE with my ATT sim.
I have the Global version
Heads up for anyone who uses this phone. I got a couple of these unbranded open market 2g/16gb model 2005-5 via the Visible deal a while ago and tried to activate on Tello and Textnow. Bottom line, the phone will activate but it WILL NOT have LTE speed data. This effectively makes the phone useless to utilize with the TextNow free talk and text plan. It CAN be used with Tello as long as you are good with talk and text and ~128kbps data speed. The funny thing about this entire issue is that the phone works FINE with Sprint proper! Talk/Text/Data all function on Sprint but WILL NOT function on a Sprint MVNO. I have a feeling that this is probably due to APN programming issues (which cannot be done on a stock ROM) It seems the phone is setting a 1x default APN vs the proper MVNO LTE APN. Consultation with Tello Customer Service reveals that this has been an on-going issue for at least 3 months with no ETIC on the horizon. Lastly, if you are wondering WTH I am trying to use the phone on a Sprint MVNO, let me tell you Tello is hands down a great deal, provided you have good Sprint coverage in your local area.
Thanks for the heads up. I've been fighting with mine trying to get LTE all day. Guess I'm going back to my Galaxy S5.
No ETIC
I've gone direct to Lenovo with the issue and after comprehensive troubleshooting and banter back and forth there is no solution to using a moto E6 on a sprint MVNO due to the APN programming issue. The phone will work fine on big Sprint proper but you will suffer degraded or completely unusable LTE function if you activate this phone on a Sprint MVNO for the foreseeable future. All this could easily be solved IF a custom ROM for the e6 could be made wherein it allows the APN settings to be set manually. As with the Moto E 2015 you can activate the phone on an MVNO with the stock rom and then flash the custom rom and manually set the APN to get LTE speed.
Just bought a Moto E6 from Visible. Pop in a 516TQ SIM and I got service. I didn't test the speed but it seems fine with LTE logo.
If I put in the Visible SIM (uses Verizon) or T-Mobile SIM, I can see and change VPN. But with the Tello SIM, the APN cannot be changed. There is simply no manual for APN. However, data is still programmed properly and I can make phone calls and use data. I guess this is fixed from the network side. Now I am wondering if this is also fixed on Moto E4 from Boost.
nookin said:
Just bought a Moto E6 from Visible. Pop in a 516TQ SIM and I got service. I didn't test the speed but it seems fine with LTE logo.
If I put in the Visible SIM (uses Verizon) or T-Mobile SIM, I can see and change VPN. But with the Tello SIM, the APN cannot be changed. There is simply no manual for APN. However, data is still programmed properly and I can make phone calls and use data. I guess this is fixed from the network side. Now I am wondering if this is also fixed on Moto E4 from Boost.
Click to expand...
Click to collapse
I also have E6 and also was wondering if its compatible with Tello.... How are you using it on Tello if only Verizon CDMA frequencies are supported? Also, are you using Tello SIM or Sprint SIM?
I am currently using Samsung S4-L720 with Sprint SIM on Tello. It activated and works without a glitch. I wanted to switch to Motorola e6 but tello website says E6 is not compatible with Sprint Sim (which is what currently use on tello) . Do I need to buy some dedicated Tello Sim then?
user-747 said:
I also have E6 and also was wondering if its compatible with Tello.... How are you using it on Tello if only Verizon CDMA frequencies are supported? Also, are you using Tello SIM or Sprint SIM?
I am currently using Samsung S4-L720 with Sprint SIM on Tello. It activated and works without a glitch. I wanted to switch to Motorola e6 but tello website says E6 is not compatible with Sprint Sim (which is what currently use on tello) . Do I need to buy some dedicated Tello Sim then?
Click to expand...
Click to collapse
While Visible uses Verizon network, the E6 sold by Visible is a factory unlocked phone that works with all 4 major providers.
I used a Sprint SIM SIMOLW516TQ ("D" SIM). I got it some time back for $1 (4 SIMs pack) from Amazon.
I'm being told that my device is going to be booted off AT&T because my XZP is only running at 3G (according to at&t support engineers). I find this hard to believe.
I had some initial issues with the sim because I used the sim from an older phone, which could only do 3G, so it wasn't registered on their network as capable of anything else. The jerks in the store were of no help, and even got attitude with me about dropping my sim into a new phone to see if it would register. Luckily, I had a bud who had a brand new LTE AT&T phone, so I popped my sim in there, let it register, get access to all their new/current bands, and then I put the sim back in my XZP... lo and behold, all the capabilities were unlocked.
I have been running the at&t apn for high speed, phone started using 4g+ when the LTE rollout finally got fully deployed.
In trying to run down if AT&T is full of crap or not about kicking my phone off the network that is "only using 3G"... I came across this https://apn.gishan.net/en/apn/att/sony-xperia-xz-premium
It shows I should have a bearer of LTE, and I do not. I have 4G and all of the older network types, but no LTE. Does anyone else have this? If so, what network are you on? My phone should be current on its updates, as old as they are...
Maybe I need to drop this sim into a current gen phone again and let it register on their network?
Any ideas/feedback is appreciated.