Hi I was wondering if anyone had tried to activate a T-Mobile S4 variant on Sprint networks . I read where one will need a valid ESn Number . I realize that Sprint uses different bands for their voice text and LTE data then T-Mobile does . Would I need to install a Sprint variant S4 rom to solve this issue with the cellular modem radio . Any help appreciated
Late reply here. You have issues that will make it very difficult for you to accomplish what you're trying to do.
1. You can't install a Sprint ROM on a T-Mobile device. Odin will check to determine whether the ROM is correct for the device, and if it isn't, will refuse to install it.
2. Installing a Sprint baseband on a T-Mobile device, if it were possible, would render the wireless capabilities of the device useless until the T-Mobile baseband were restored.
3. You'd need to convert the IMEI to an ESN. This is perhaps the easiest thing to do since the ESN is the IMEI, but ignoring the very last digit in the IMEI (the check digit).
4. Sprint is extremely reluctant to activate non-Sprint phones on their network, to the point of outright refusal in some cases.
I personally recommend switching from Sprint to T-Mobile or an MVNO using T-Mobile if you really want to use this device. Not only is the service better than Sprint, you don't have any hoops to jump through in order to get the S4 working on the network. If you insist upon using Sprint, find a different device.
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I cant find a clear answer if an ATT galaxy s5 will work on tmobile ( phone is unlocked) or will it be missing some features
and also if I install a tmobile stock rom on att phone will it have the wifi calling and all the features of a t mobile phone?
im trying to buy a phone today and cant find any solid info on the internet its a bit confusing
There are lots of existing threads that ask and answer this, so your search missed those (or you didn't search).
Anyway, you can use a TMB phone on ATT without any issues. It doesn't work as well in the reverse as you want to do. The ATT model is missing several frequency bands that the TMB phone has. And ATT, unlike most carriers, also locks the bootloader.
So a (SIM unlocked) 900A phone will work on TMB but will have some gaps in coverage. In a large city with lots of redundant bands that may not be much of a problem. But you will be subject to more congestion, dropped calls and outside of large, urban centers you may even have no coverage i.e. if an area is only served by the bands your phone doesn't have.
And the locked bootloader means that you can't install a custom kernel or recovery. Although you can emulate them with the Safestrap program on an ATT handset. The best way to get the TMB apps, wifi calling, etc is to root and install a custom ROM that is 900T based or 900F based, with the TMB apps added.
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Hello I got this new phone and I want to be able to put on custom roms and what not, I somehow installed twrp recovery but it only worked once and now it just sits there at the beggining loading i assume cause the phone is not rooted which I have tried to root it and even install the binary su through twrp and it did not work, so how do I go about this thank you so much
Esin8785 said:
Hello I got this new phone and I want to be able to put on custom roms and what not, I somehow installed twrp recovery but it only worked once and now it just sits there at the beggining loading i assume cause the phone is not rooted which I have tried to root it and even install the binary su through twrp and it did not work, so how do I go about this thank you so much
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Just flash an official firmware via odin and you´ll be alright
Sounds like a bad install of twrp it shouldn't be corrupt flash
Okay I got the phone flashed with custom recovery cwm and even installed cynogenmod on the phone which all works great, I got service last night from straight talk to find out that I cannot use this phone at all for their service for what ever reason even though their website said it would work, flashing the phone to a different service would that work on this phone or would it still be in the same boat I am in now
is your phone CDMA cricket or the new GSM?
its a gsm phone, cricket told me they are switching to cdma and this phone will no longer work with cricket at all, they also told me the phone cannot not be unlocked for other carriers, I was still hoping that it can work with straight talk, i already got the plan and sim cards but it wont take it
Umm, you have that backwards. Cricket was purchased by AT&T and is transitioning from CDMA to GSM. So your Cricket phone is more likely a CDMA model.
http://www.pcmag.com/article2/0,2817,2455001,00.asp
ok
Okay if it's the cdma phone then it can be flashed over to straight talk correct, Here is what I got, I got a samsung galaxy s4 rc970c model from cricket which uses their sim card, I do not have the old sim card from them but i do have the ones from straight talk, when I put that sim card in it, it does not recogonize it at all or askes me anything at all about it, so basically what do i need to do to get this phone to work with straight talk and i still need a number for it as well
I also have a samsung exhibit from metropcs, i would rather have the s4 work with straight talk but for now I just need service with a new number some how thank you so much for all your help
also both of these phones take sim cards so idk if that means gsm or cdma and from what I've been reading this should be a gsm phone as it takes sim card not sure if that is only for internet or not, i downloaded a app sim card reader or what ever and it says it's a cdma phone
Cricket may well be like Verizon, in requiring a SIM card for its LTE service. However, CDMA phones on the Straight Talk BYOP program do not use SIM cards and instead use an activation code. The consequences of this are that if the phone is compatible, LTE will likely not be available to you.
If you purchased a SIM thinking the Straight Talk CDMA Phone Information Page covered GSM phones as well, you're out the cost of the SIM, though you could probably sell it to someone with a GSM phone. If the phone is indeed compatible as you said, you want to buy an activation code instead.
for now all I want is to get this phone that I have working with phones calling, I can care less about the lte internet stuff I do most of everything via wifi anyways from my own network and I'm usually at home and don't need the net on the go that fast, How do I get this phone to work cause their website says it's compatible but it wont take the imie says we do not offer service in that area code and I know for a fact they do I'm in metro denver colorado they have shops everywhere
If the combination of IMEI and zip code says service isn't available, then there's no way to use the phone on Straight Talk in your area. Call them and ask why that is, but I wouldn't expect a good answer. I can only speculate why Straight Talk isn't available in the area for your phone, but I believe it to be because the phone is a Cricket phone. The BYOP program is generally geared to the major carriers. Minor carriers and MVNOs aren't accounted for.
I have a SM-935 U device and have been using on the AT&T network. I recently switched to Verizon MVNO (US Mobile). The phone doesn't get registered on the Verizon network. I bought the unlocked S7 edge from best buy thinking that it will work on all carriers. Any help will be appreciated.
The SM-935U do work on all carriers. I have a SM-935V with U firmware on it. I'm with a Verizon MVNO named Total Wireless. Sounds like the phone you go from Best Buy is stilled registered under AT&T...
Not getting registered to Verizon network
When I check the IMEI of my phone against the Verizon compatibility check using their web site, it is fully compatible. The issue is that phone is not getting registered to the Verizon network. I think Verizon is blocking it some how and the MVNO is not able to help me to resolve this.
You ever figure out a solution out to this?
silvers67 said:
When I check the IMEI of my phone against the Verizon compatibility check using their web site, it is fully compatible. The issue is that phone is not getting registered to the Verizon network. I think Verizon is blocking it some how and the MVNO is not able to help me to resolve this.
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The LTE should work fine, but youll have to set the APN correctly, otherwise it wont get any data, for the CDMA portion youll have to submit the ESN to Verizon to add your ESN IMEI to their database.
I recently bought used Sprint Samsung Galaxy S7. It turned out the phone is locked to Sprint and is on bootloader v5. I called Sprint but they refused to unlock it even though it is paid in full because I am not the owner of the account that phone is associated with. I bought it from an electronics recycling company, so they cannot help with this. I would like to use it with a gsm carrier, like ATT or T-Mobile. What are my options here? Can the phone be unlocked by third-party? Even if unlocked, can the necessary bands and other settings be made available? Any hacks that trip KNOX are unfortunately not acceptable in my case (it seems putting U firmware with BL5 will trip KNOX).
IMEIGURUS.COM should have a carrier unlock for you. not saying its free.
That is fine but after it is unlocked would I be able to use it with t-mobile or att without issues? I read a lot about LTE frequencies locked, missing menus to set APNs, etc.
It is fine if the answer to my original question is to simply get rid of the phone. I am already considering this, as I naively thought that all it would need is a call to Sprint to unlock it and then flashing the U firmware.
grga1 said:
That is fine but after it is unlocked would I be able to use it with t-mobile or att without issues? I read a lot about LTE frequencies locked, missing menus to set APNs, etc.
It is fine if the answer to my original question is to simply get rid of the phone. I am already considering this, as I naively thought that all it would need is a call to Sprint to unlock it and then flashing the U firmware.
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There is a thread here about unlocking additional LTE bands.
I got a us996. I popped in my sim card, added an APN, and changed my imei. I got data but no mms or calls. I've searched around a bit but I couldn't find much. If anyone has a work around or knows a solution let me know.
Appreciate it
I would be surprised to see a US996 work on the Sprint network (I happen to own both LS997 ZV7 and US996 USA models). It is known to work on Verizon, but I've never heard of anyone using it on Sprint.
First, the phone's IMEI would have to be whitelisted by Sprint. You can use various Sprint IMEI checkers to verify - Ting's BYOD checker works well for this: If the IMEI is clean, then it will tell you the phone will work on their CDMA network.
And don't you need to do a specific activation process for all phones on Sprint? Just transferring a SIM card between phones is not enough.
Also, I don't think any of the US996 variants have all of Sprint's LTE bands (they seem to lack bands 26 and 41), so even if you get it to work, your LTE signal coverage won't be very good.
C D said:
I would be surprised to see a US996 work on the Sprint network (I happen to own both LS997 ZV7 and US996 USA models). It is known to work on Verizon, but I've never heard of anyone using it on Sprint.
First, the phone's IMEI would have to be whitelisted by Sprint. You can use various Sprint IMEI checkers to verify - Ting's BYOD checker works well for this: If the IMEI is clean, then it will tell you the phone will work on their CDMA network.
And don't you need to do a specific activation process for all phones on Sprint? Just transferring a SIM card between phones is not enough.
Also, I don't think any of the US996 variants have all of Sprint's LTE bands (they seem to lack bands 26 and 41), so even if you get it to work, your LTE signal coverage won't be very good.
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I just changed the IMEI to my sprint model to get the Sim card to work. I can get data but can't send MMS or make calls (besides it saying it's forwarding me to a Sprint operator). So I know I can make calls, it's just not setup right.
That's where I think the activation features of a Sprint-branded phone (hands-free activation, profile update, PRL update) come in. Without those or some magic action of a Sprint employee, you're probably out of luck. Unfortunately, there is no LS997 KDZ firmware out there; otherwise, you may have been brave enough to try to cross-flash that onto your US996.