Database Develop

[Q] Rogers Captivate i896 Upload Speeds and unlocking

Hi all,
I have a new i896 with Rogers and have no intention of using it on the Rogers network therefore really need to unlock it. SGS unlocker did not work for me and all the other ways listed do not seem to work for me... I tried to purchase a code from cellunlockingcodes.com. They said the code was available but then refunded me as they were unable to provide me with a code.
My second concern is the upload speed seems to be capped at 200 kbps even in Wifi. I guess this is a software limitation? I`ve seen some posts regarding this with the ATT Captivate and a sw update should fix it. But I do not want to stay stuck with a device that is capped at 200 kbps upload.
Anyone has any idea why my speed is limited at 200 kbps and also is there a specific post regarding the unlocking of the i896 unlocking??
Thanks. Emmanuel.

[email protected] said:
Hi all,
I have a new i896 with Rogers and have no intention of using it on the Rogers network therefore really need to unlock it. SGS unlocker did not work for me and all the other ways listed do not seem to work for me... I tried to purchase a code from cellunlockingcodes.com. They said the code was available but then refunded me as they were unable to provide me with a code.
My second concern is the upload speed seems to be capped at 200 kbps even in Wifi. I guess this is a software limitation? I`ve seen some posts regarding this with the ATT Captivate and a sw update should fix it. But I do not want to stay stuck with a device that is capped at 200 kbps upload.
Anyone has any idea why my speed is limited at 200 kbps and also is there a specific post regarding the unlocking of the i896 unlocking??
Thanks. Emmanuel.
Click to expand...
Click to collapse
200Kb upload it more then you realize. It's a phone, not a computer. Do not expect high upload speeds especially since we don't have HSUPA.
Secondly, http://forum.xda-developers.com/showthread.php?t=831569
That should work for your unlock. Read the OP carefully and follow the directions as written. And yes I know it says Froyo in the thread title. The only thing that is different is that when it tells you to do anything with copying to the sdcard, you need to type /sdcard instead of /mnt/sdcard as the latter is for Froyo only.

miztaken1312 said:
200Kb upload it more then you realize. It's a phone, not a computer. Do not expect high upload speeds especially since we don't have HSUPA.
Click to expand...
Click to collapse
200 kbps is nothing my friend.
Explain to me why over the same Wifi connection using the same speed test.net app and testing at the exact same time in the exact same location I get such different results:
Xperia X10 = 1700 kbps
Captivate = 200 kbps
Tested 20 times I could not believe it!! When the upload test starts for half a second it goes up to close to 1000 kbps and then drops to 200.
I dont`t understand what HSUPA comes and changes if I`m using Wifi??? I have not even tested it over 3G as device is still locked to Rogers and I`m a Telus user.
If I dont find a solution ASAP this piece of crap is going back to ROGERS!!!

200 kbps is pathetic, and not acceptable.
I'm not well versed in the i896 and what the differences are, but something is wrong.
Here's what is possible:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

I tested mine when I woke up. 3.4 megabits upload on wifi. Maybe you just got a ****ty unit. Exchange it for another?
Either way, I still don't feel like 200kb is slow by any means. Low, maybe, but not slow.

miztaken1312 said:
Either way, I still don't feel like 200kb is slow by any means. Low, maybe, but not slow.
Click to expand...
Click to collapse
It's thoughts like this that allow Samsung to get away with what they do.
Sent from my Captivate.

MikeyMike01 said:
It's thoughts like this that allow Samsung to get away with what they do.
Sent from my Captivate.
Click to expand...
Click to collapse
He's the only one I've ever seen complaining about upload speeds on a phone. What the heck are you uploading from your phone where you need an excess of 200kb?
Sent from my Captivate

[email protected] said:
200 kbps is nothing my friend.
Explain to me why over the same Wifi connection using the same speed test.net app and testing at the exact same time in the exact same location I get such different results:
Xperia X10 = 1700 kbps
Captivate = 200 kbps
Tested 20 times I could not believe it!! When the upload test starts for half a second it goes up to close to 1000 kbps and then drops to 200.
I dont`t understand what HSUPA comes and changes if I`m using Wifi??? I have not even tested it over 3G as device is still locked to Rogers and I`m a Telus user.
Click to expand...
Click to collapse
I haven't had the same behaviour on my i896.
Wireless upload maxes out at whatever the underlying connection supports. Half a meg at home, up to 2 megs elsewhere.
And you're right, HSUPA won't have any bearing on wireless upload speeds. FWIW, I haven't even had anything below 350kbps upload out in the wild on 3G, which isn't terrible since HSUPA isn't in the house.
Assuming you're not running the X10 and Captivate literally simultaneously on a router on top of a 2 meg upload connection, I'd say you got a bum phone.

Rogers Captivate I896 Unlocked!
miztaken1312 said:
That should work for your unlock. Read the OP carefully and follow the directions as written. And yes I know it says Froyo in the thread title. The only thing that is different is that when it tells you to do anything with copying to the sdcard, you need to type /sdcard instead of /mnt/sdcard as the latter is for Froyo only.
Click to expand...
Click to collapse
I rooted my Rogers Captivate, then followed the unlock steps posted above, and can confirm that they do work. The only problem I had was the absence of "cp" utility. Not sure whether it's because it is missing in Rogers firmware or because I haven't installed BusyBox yet. I had to use "cat" with ">" redirection to copy files around. Unfortunately, that method is not for the faint of heart, the only reason I attempted it is because I admin a Linux farm at work.

A poster in another i896 thread commented that cellunlocker.net have updated their unlock codes to include the Rogers i896 captivate.
Haven't tried it yet, but it is another unlocking possibility.
KV
EDIT: Hmmm seems another poster indicated that the cellunlocker code didn't work.
Secondly, http://forum.xda-developers.com/showthread.php?t=831569
That should work for your unlock. Read the OP carefully and follow the directions as written. And yes I know it says Froyo in the thread title. The only thing that is different is that when it tells you to do anything with copying to the sdcard, you need to type /sdcard instead of /mnt/sdcard as the latter is for Froyo only.
Some posters complain that this results in editing your IMEI number. Not sure what's going on just yet

I used the method from the link above. It worked for me just fine. I didn't have to edit my IMEI, just enter the unlock and unfreeze codes of my choice into the online patching utility. The method is a bit scary though. If you can pay 10-20 bucks to get a proper code online, do it, though it sounds like it's not possible as of yet.
Sent from my SAMSUNG-SGH-I896 using XDA App

[Q] How to get off of Tmobile EDGE in the US (c6603 model)

Would like an answer from US residents on tmobile in the US with the c6603 model only.
Does any US resident have lte or any 2,3,4g using the c6603?
If so which did you flash and can I get a screenshot of the APN settings that worked for you
Would like an answer from US residents on tmobile in the US with the c6603 model only
thanks

The threads on this subject are starting to tot up.
...Sent from Zed

XperienceD said:
The threads on this subject are starting to tot up.
...Sent from Zed
Click to expand...
Click to collapse
No answer to the question?

iamswissbanks said:
No answer to the question?
Click to expand...
Click to collapse
See the existing threads found by browsing the General and Q&A section, both of which have more than one page.

XperienceD said:
See the existing threads found by browsing the General and Q&A section, both of which have more than one page.
Click to expand...
Click to collapse
Well i have been browsing the q&A section and general since i got the phone in march everyday. So if you can point me in the right direction to the thread that answers this specific question. I have seen plenty of us att c6603 threads and and the new c6606 on tmobile threads and the people who WANT to get the c6603 model and use it on us carriers. I even followed the lte in canada thread to see what I could pull from there. So if you can point me in the right direction and not to some thread which has a speculative answer? Because there are a lot of people who dont have this model or who are not on the us carrier of tmobile who are forming opinions on here. I personally assumed that once the tmobile version c6606 dropped that I could flash the ftf basebands for that onto my c6603 and it would work
So if you can lead me the way i would greatly appreciate it
[edge network is killing me bro]

Here is the C6606 stock firmware - http://forum.xda-developers.com/showthread.php?t=2361750
You could try the same method of flashing just the baseband from it that the people in the thread regarding LTE in Canada have used and see if that works for you.
I don't have a C6606 or live in the US, but I thought at least having the firmware from the C6606 would be a good start
Sent from my C6603 using Tapatalk 2

kingvortex said:
Here is the C6606 stock firmware - http://forum.xda-developers.com/showthread.php?t=2361750
You could try the same method of flashing just the baseband from it that the people in the thread regarding LTE in Canada have used and see if that works for you.
I don't have a C6606 or live in the US, but I thought at least having the firmware from the C6606 would be a good start
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
Thank you very much:good:. I will try it in a few seconds.
I will still need the correct apn settings to know if it works for sure. I have called tmobile several times a month for the past 3 months and have gotten several different variations of settings.
Thanks again one step closer to getting off the edge :victory:

iamswissbanks said:
Thank you very much:good:. I will try it in a few seconds.
I will still need the correct apn settings to know if it works for sure. I have called tmobile several times a month for the past 3 months and have gotten several different variations of settings.
Thanks again one step closer to getting off the edge :victory:
Click to expand...
Click to collapse
You're welcome. I'm afraid I cannot help with the APN settings as I live in the UK
I can suggest asking someone here that has the phone to take a look at their preexisting settings for you, maybe the person that posted the firmware I linked you to.
Good luck
Edit: Here is the method used to get LTE in Canada - http://forum.xda-developers.com/showthread.php?p=41648434
In theory, the method should be the same for you, apart from the APN settings. It goes without saying that all this is at your own risk, of course.
Sent from my C6603 using Tapatalk 2

kingvortex said:
You're welcome. I'm afraid I cannot help with the APN settings as I live in the UK
I can suggest asking someone here that has the phone to take a look at their preexisting settings for you, maybe the person that posted the firmware I linked you to.
Good luck
Edit: Here is the method used to get LTE in Canada - http://forum.xda-developers.com/showthread.php?p=41648434
In theory, the method should be the same for you, apart from the APN settings. It goes without saying that all this is at your own risk, of course.
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
yea i been following that thread and I have flashed the zl basebands but I do not have the correct apn so no way to actually confirm whether it is working or not but thanks again

iamswissbanks said:
yea i been following that thread and I have flashed the zl basebands but I do not have the correct apn so no way to actually confirm whether it is working or not but thanks again
Click to expand...
Click to collapse
Have you tried Settings -> Xperia -> Internet settings? That's how I got the APN settings for my phone when I first got it. I don't know if it will retrieve LTE settings or not, but it's worth a try.
Sent from my C6603 using Tapatalk 2

kingvortex said:
Have you tried Settings -> Xperia -> Internet settings? That's how I got the APN settings for my phone when I first got it. I don't know if it will retrieve LTE settings or not, but it's worth a try.
Sent from my C6603 using Tapatalk 2
Click to expand...
Click to collapse
Ok i flashed the c6606 baseband only and I have a
no service
selected network unavailable
also when I go to try and set and apn it does not save it remains blank and when I do try the internet settings it says please insert sim
Any suggestions on what is the problem?
and it keeps rebooting on its own
Sooo now i have flashed back to zl basebands because just flashing the c6606 baseband was not recognizing my sim card

iamswissbanks said:
Ok i flashed the c6606 baseband only and I have a
no service
selected network unavailable
also when I go to try and set and apn it does not save it remains blank and when I do try the internet settings it says please insert sim
Click to expand...
Click to collapse
Here's T-Mobile's 3g/4g apn settings you need. Just make sure after you input all these fields to click the settings button in the lower right and click save.... reboot
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

jacksonj51 said:
Here's T-Mobile's 3g/4g apn settings you need. Just make sure after you input all these fields to click the settings button in the lower right and click save.... reboot
Click to expand...
Click to collapse
Tried this one but my picmsg will not work with this setting.
Also I thought the fast.tmobile.com was the appropriate one for lte?

iamswissbanks said:
Tried this one but my picmsg will not work with this setting.
Also I thought the fast.tmobile.com was the appropriate one for lte?
Click to expand...
Click to collapse
Yes but you stated that you needed these settings for the C6603 in your first post, which has HSDPA basebands of 850 / 900 / 2100 and LTE bands of 800 / 850 / 900 / 1800 / 2100 / 2600 which means you don't have T-Mobile HSDPA or LTE so your not gonna need the fast.tmobile.com apn... You need the C6602 to get T-Mobile's 4G HSDPA speeds and you'll need their newly released C6606 to get their newly farmed LTE but it has a locked bootloader and an ugly 'T-Mobile' tattoo on the back.
Here, this will get your mms working. You want the MMSC & apn type from this pic to get your mms working.

jacksonj51 said:
Yes but you stated that you needed these settings for the C6603 in your first post, which has HSDPA basebands of 850 / 900 / 2100 and LTE bands of 800 / 850 / 900 / 1800 / 2100 / 2600 which means you don't have T-Mobile HSDPA or LTE so your not gonna need the fast.tmobile.com apn... You need the C6602 to get T-Mobile's 4G HSDPA speeds and you'll need their newly released C6606 to get their newly farmed LTE but it has a locked bootloader and an ugly 'T-Mobile' tattoo on the back.
Here, this will get your mms working. You want the MMSC & apn type from this pic to get your mms working.
Click to expand...
Click to collapse
Thanks those are the default setting.
I thought the c6606 and the c6603 had the same radios making them both LTE capable?

iamswissbanks said:
Thanks those are the default setting.
I thought the c6606 and the c6603 had the same radios making them both LTE capable?
Click to expand...
Click to collapse
They are both LTE capable however the C6606 is exclusive to T-Mobile LTE
Anyhow glad it worked

jacksonj51 said:
They are both LTE capable however the C6606 is exclusive to T-Mobile LTE
Anyhow glad it worked
Click to expand...
Click to collapse
Exclusive to tmobile means what to me as a c6603 user? Does that mean they block any other phone or sim that tries to use it? because I tried flashing the c6606 basebands and it would not recognize my sim

So still no LTE....so no one else has this problem?

T Mobile uses a different LTE band requiring different radio hardware....same as their 3G operates on the 2100/1700mhz frequency range and requires radio hardware of picking this 3G up...hence you only get EDGE
One of the reasons I ditched my T Mobile account for an AT & T account because you can at least use 3G with AT & T as it uses the 850Mhz frequency.
But unless you have the correct hardware you will not get 4G no matter what APN's or firmware you flash.
I do not live in the US but I travel there often (2-3 times a year) and I have the 6603 - before that a HTC One X and iPhone 5 - no LTE just 3G because of hardware
http://twitter.com/durtgeek

geekygrl said:
T Mobile uses a different LTE band requiring different radio hardware....same as their 3G operates on the 2100/1700mhz frequency range and requires radio hardware of picking this 3G up...hence you only get EDGE
One of the reasons I ditched my T Mobile account for an AT & T account because you can at least use 3G with AT & T as it uses the 850Mhz frequency.
But unless you have the correct hardware you will not get 4G no matter what APN's or firmware you flash.
I do not live in the US but I travel there often (2-3 times a year) and I have the 6603 - before that a HTC One X and iPhone 5 - no LTE just 3G because of hardware
http://twitter.com/durtgeek
Click to expand...
Click to collapse
Thanks geekygrl. I am aware but I was under the impression from this forum that the c6603 and tmobiles c6606 have the same hardware? Is this true? or is it just unicorns and pixiedust?

[Q] Note 4 internet/call issues

Hi Guys,
I just adquire my Note 4 from a friend and i'm having lots of problems to conect to the network in my country, i live outside of USA (Dominican Republic), somethimes it makes and receive calls, somethimes i don't receive any calls but can make it but when i make it the other person can't listen to me (i've tried with diferent phone numbers) also the internet 4G/LTE is no consistent. In summary, i'm having lots of signal\internet issues with my Note 4.
My question is, is that a hardware issue or i need to try with other baseband or modem to fix this?
please give me some light as i'm losing my mind with.
thanks in advance...
Miggs

I would first create a new apn specific to your carrier...
Then i would check to see if in fact your running the latest modem for the device..
But start with the apn...

Flashvetrin said:
I would first create a new apn specific to your carrier...
Then i would check to see if in fact your running the latest modem for the device..
But start with the apn...
Click to expand...
Click to collapse
Thank you for your help @Flashvetrin i checked the APN and it is correct, my modem is also the latest available UVU1ANK4 (not 100% sure did not find any other on internet) for t-mobile stock rom, some say this could be internal hardware problems but i dont think so because the phone make some calls and internet works sometimes but is not consistant.
i made a hard reset and i worked for some minutes but lost signal and went back to this behaivor again.
really don't know what to do now..
thanks in advance.
Miggss

Can you take the device in for a sim upgrade???? Does the device recieve stronger signal anywhere in your area???? Interesting how your saying that after a hard reset it helps..
Try using short cut master from the playstore use #2263 launch0 and run 4 thru 8 ....
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

It is most likely coverage problem. My understanding is that biggest cell provider in DR is company which uses cdma technology. Do a little research which gsm provider has better coverage in your area and if lte bands used are compatible with your note4.
Sent from my SM-N910T using XDA Free mobile app

Flashvetrin said:
Can you take the device in for a sim upgrade???? Does the device recieve stronger signal anywhere in your area???? Interesting how your saying that after a hard reset it helps..
Try using short cut master from the playstore use #2263 launch0 and run 4 thru 8 ....
Click to expand...
Click to collapse
I've done all of the steps you mention and nothing gets better, it just works when he wants (most of the time it donesnt). I will try installing a ROM just for testing purposes.
I changed my SIM card for the newest LTE capable one. @darekz im on Claro and they are GSM\LTE.
Thanks in advance,
Miggs

I did do quick search and appears that claro using lte band 4 which is supported by Tmobile note 4. Just to check can you disable lte in phone settings and see if daya transfer improves over 4g. With poor lte coverage phone will constantly fallback to 4g and keep looking for lte.
Sent from my SM-N910T using XDA Free mobile app

darekz said:
I did do quick search and appears that claro using lte band 4 which is supported by Tmobile note 4. Just to check can you disable lte in phone settings and see if daya transfer improves over 4g. With poor lte coverage phone will constantly fallback to 4g and keep looking for lte.
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
I have changed all the different options and nothing. I have a friend who has the same phone as me and we interchanged SIMs cards and my sim worked very well on his and her SIM did not worked on mine. Im not sure on how to update the baseband but i will try to do this and to see if this fix the problem.
Thanks in advance.
Miggs

Miggs29 said:
I have changed all the different options and nothing. I have a friend who has the same phone as me and we interchanged SIMs cards and my sim worked very well on his and her SIM did not worked on mine. Im not sure on how to update the baseband but i will try to do this and to see if this fix the problem.
Thanks in advance.
Miggs
Click to expand...
Click to collapse
I think k4 is the latest...
Whats the baseband?? Find that modem and flash if its not the same..
Mirror the apn.
And look in her build prop as well and see if theres anything under device= that you can mirror....

Flashvetrin said:
I think k4 is the latest...
Whats the baseband?? Find that modem and flash if its not the same..
Mirror the apn.
And look in her build prop as well and see if theres anything under device= that you can mirror....
Click to expand...
Click to collapse
Hi @Flashvetrin,
The baseband is K4, i flashed the NJ and it keeps almost the same behaivor, i can say K4 is a bit better as at least i can make calls, no calls with NJ.
build.prop, i dont know how to edit it and i'm note certainly sure about it as it can brick my phone.
Let's assume it's a hardware issue, is the hardware in charge of control the siganl interchangable, can i buy it on internet, or is my phone destined to be a clip for papers??
BTW, i installed another ROM and it's the same, no way.
Thanks for all your help,
Miggs

Miggs29 said:
Hi @Flashvetrin,
The baseband is K4, i flashed the NJ and it keeps almost the same behaivor, i can say K4 is a bit better as at least i can make calls, no calls with NJ.
build.prop, i dont know how to edit it and i'm note certainly sure about it as it can brick my phone.
Let's assume it's a hardware issue, is the hardware in charge of control the siganl interchangable, can i buy it on internet, or is my phone destined to be a clip for papers??
BTW, i installed another ROM and it's the same, no way.
Thanks for all your help,
Miggs
Click to expand...
Click to collapse
Question what was the behavior of the phone like when it was in the us????
Fyi there are things that can be changed..
(ALOT) of things in the build prop..
your phone wont brick....
I promise..
But if your not comfortable i understand.
It may be that the modem hsic just isnt or doesnt respond on "this" paticular network..
The phone that you compared it to was it purchased in the us as well...
If its infact an International Version it may have some bearing.....
No its not a paper weight...but i am starting to run out of ideas/solutions...
Please be paitent.. im gonna consult some else as well..

Flashvetrin said:
Question what was the behavior of the phone like when it was in the us????
Fyi there are things that can be changed..
(ALOT) of things in the build prop..
your phone wont brick....
I promise..
But if your not comfortable i understand.
It may be that the modem hsic just isnt or doesnt respond on "this" paticular network..
The phone that you compared it to was it purchased in the us as well...
If its infact an International Version it may have some bearing.....
No its not a paper weight...but i am starting to run out of ideas/solutions...
Please be paitent.. im gonna consult some else as well..
Click to expand...
Click to collapse
The phone is the same, a TMO Note 4 bought in US and taken to DR, that's why i say this could be a hardware issue as my SIM worked very well on her phone.
I will try with other baseband and let you know.
Thanks.
Miggs.

Miggs29 said:
The phone is the same, a TMO Note 4 bought in US and taken to DR, that's why i say this could be a hardware issue as my SIM worked very well on her phone.
I will try with other baseband and let you know.
Thanks.
Miggs.
Click to expand...
Click to collapse
Flash the latest tmobile modem..
And keep your fingers crossed...[emoji106]

Flashvetrin said:
Flash the latest tmobile modem..
And keep your fingers crossed...[emoji106]
Click to expand...
Click to collapse
Solved.
IMEI issues..
Thanks.
Miggs

Miggs29 said:
Solved.
IMEI issues..
Thanks.
Miggs
Click to expand...
Click to collapse
Most exellent....
[emoji16]

Anyone flashed any other carrier rom?

Here is a list of them from sammobile
https://www.sammobile.com/firmwares/galaxy-s8/SM-G950U/
I think its going to be a free for all and maybe we in the verizon s8 will get love from the whole community this time, at least the US. It seems we all may have SM-G950U.
Is that correct more knowledgeable people?

I'm trying to flash to T-Mobile​ as all US networks use the SM-950U . That means they have all the bands for every network. I tried to flash through odin but if you flash the CSC file for T-Mobile , along with the other 3, the phone factory resets to stock Verizon firmware. If I just flash the AP (Actual software) and the CP (Modem file for correct bands), it works but I get a ton of bloatware from cricket, metro pcs, Verizon , and tmobile with a really glitchex out settings app. Also, without the CSC file your phone is still technically Verizon .

So we should wait? I have the Verizon version also but use TMobile.

We have to wait
gqukyo said:
So we should wait? I have the Verizon version also but use TMobile.
Click to expand...
Click to collapse
I tried the method used on the S7 to flash another carrier and it does not work anymore. There's some type of carrier partition that can't be changed by odin with the CSC file, which would change that partition. If you try to flash all the files, you get an error at 32% of "upgrading your system". I heard that there is a new version of odin that lets you flash the userdata file to switch carriers from a other forum, but it's not out right now. So waiting is the only option....
Here is a forum post for the S7 edge:
https://forum.xda-developers.com/tmobile-s7-edge/help/flashing-t-mobile-rom-verizon-s7-edge-t3464526

Just we'll have to wait till someone figures something out. On a side note, what's the most recent update? I'm on QD9 and I'm getting an update notification for the dqa OTA fix from Samsung but I can never download it. Probably because I'm using Verizon phone on TMobile...

gqukyo said:
Just we'll have to wait till someone figures something out. On a side note, what's the most recent update? I'm on QD9 and I'm getting an update notification for the dqa OTA fix from Samsung but I can never download it. Probably because I'm using Verizon phone on TMobile...
Click to expand...
Click to collapse
The latest update is QD9 and if you want to check and install updates, you can download Smart Switch from Samsung's site. Then you go to more and software updates to make sure your phone is on the latest version. I'm also on T-Mobile with the Verizon model and hate that I dont the Voice Over LTE, Wifi Calling, 4x4 mimo, etc. So yea, we just have to wait for someone to figure this out.

Maybe I'm looking at the wrong thing but that Samsung switch program seem to be for transferring data from other phones so I didn't bother downloading it.

gqukyo said:
Maybe I'm looking at the wrong thing but that Samsung switch program seem to be for transferring data from other phones so I didn't bother downloading it.
Click to expand...
Click to collapse
I thought the same thing but along with that you can perform software updates for any carrier. Also, I recommend d doing a backup if you want to flash another carrier when it is possible.

Wow that was a pain in the butt to install. Had to install a 2008 version of visual c++. Since I don't see an option to update the phone, is safe to assume there's no update then right? If so why do I always get the update notification?

gqukyo said:
Wow that was a pain in the butt to install. Had to install a 2008 version of visual c++. Since I don't see an option to update the phone, is safe to assume there's no update then right? If so why do I always get the update notification?
Click to expand...
Click to collapse
I have the same version as you and don't get any update notification. Can you add a screenshot of the notification?

Sure I'll do it next time it shows up

Here's the screenshot. Comes up from time to time and it states it's too fix the dqa issue.
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gqukyo said:
So we should wait? I have the Verizon version also but use TMobile.
Click to expand...
Click to collapse
Hi there, do you get LTE with t-mobile on this Verizon unlocked version?
I am asking because I grabbed one as well and I am on at&t but I can't get LTE going. When I boot the phone, it is there but within minutes, it goes to HSPA+, I tried every which way. I called at&t, gave them my IMEI and everything but still no LTE unless I reboot my phone every 5 minutes.
Thanks

You need to have the correct APN settings. I believe Verizon has the most LTE bands so it should work with basically most of the world's providers.
---------- Post added at 08:51 PM ---------- Previous post was at 08:51 PM ----------
Ohh and yes I do get LTE

gqukyo said:
You need to have the correct APN settings. I believe Verizon has the most LTE bands so it should work with basically most of the world's providers.
---------- Post added at 08:51 PM ---------- Previous post was at 08:51 PM ----------
Ohh and yes I do get LTE
Click to expand...
Click to collapse
I do have the correct ones but still doesn't get LTE.

Return for another one maybe? I tried it on my work ATT Sim before and it works fine for me.

gqukyo said:
Return for another one maybe? I tried it on my work ATT Sim before and it works fine for me.
Click to expand...
Click to collapse
Maybe I will get another sim card, even though the same sim card is working just fine on my iPhone without any issues.
Worth a shot.

Dodolom said:
I do have the correct ones but still doesn't get LTE.
Click to expand...
Click to collapse
You don't have the correct bands enabled with a Verizon model when using AT&T. Verizon only unlocks bands for it's network, but tmobile shares a couple of these bands and it's it as big of an issue. At&t does not share many bands with Verizon so the phone may be struggling to even find one LTE band. The only solution would be to flash the phone to AT&T firmware, which is impossible at the moment. (I Tried)

ItzApp said:
You don't have the correct bands enabled with a Verizon model when using AT&T. Verizon only unlocks bands for it's network, but tmobile shares a couple of these bands and it's it as big of an issue. At&t does not share many bands with Verizon so the phone may be struggling to even find one LTE band. The only solution would be to flash the phone to AT&T firmware, which is impossible at the moment. (I Tried)
Click to expand...
Click to collapse
Is there a way to force a certain band that exists both on verizon and at&t? If I can't get this going, I might have to just sell the phone. I have couple more days of patience left

Dodolom said:
Is there a way to force a certain band that exists both on verizon and at&t? If I can't get this going, I might have to just sell the phone. I have couple more days of patience left
Click to expand...
Click to collapse
You would need to find the firmware of an AT&T s8 and flash the CP file (Modem) using odin. This should unlock the correct bands. I did this on my Verizon s8 as I use T-Mobile.

Possible to get USA LTE bands working?

Hey, I am a first time user of xda and I don't know much about modding android devices as I am more experienced with nintendo devices. I am getting the MI A2 and do not want a large bricking risk. I have heard of a guide that unlocks more bands on a Qualcomm device. I am not sure of the risk of trying this and would like to see if anyone knows of it's possibilities.
I have looked a long time for an android phone as I recently made the switch from Apple as I believe it is a horrible company. It seems that the best value phones with the newest Operating Systems come from China. I'm sure everyone would love to see a $400 phone here in the US go for $200 and be fully compatible with AT&T and T-mobile.
(Edit) Link to the thread: https://forum.xda-developers.com/cr...ad-progress-please-leave-im-updating-t2871269
From my understanding this thread says that Qualcomm SOCs have cellular radios compatible with many bands and standards, but locks are placed in software for legal or business reasons.

Welcome to the Android forums.
I've never heard of 'unlocking bands'. My understanding is the bands advertised for the version you get (Global, North America, etc etc), are the only bands on the phone.
The MiA2 does have LTE bands that work with T-Mo. I believe the 2 bands that work are the 2 primary bands T-Mo uses. T-Mo 71 is the new 600 MHz, which very few phones have (but it would certainly be nice to have). But the 2 it has are B2 and B4, again, their most prominently used I think. These 2 also cover AT&T.
2G and 3G are completely covered. I personally don't use data so just switch to 2G for the better building penetration.
Cheers

Link to thread
AsItLies said:
Welcome to the Android forums.
I've never heard of 'unlocking bands'. My understanding is the bands advertised for the version you get (Global, North America, etc etc), are the only bands on the phone.
The MiA2 does have LTE bands that work with T-Mo. I believe the 2 bands that work are the 2 primary bands T-Mo uses. T-Mo 71 is the new 600 MHz, which very few phones have (but it would certainly be nice to have). But the 2 it has are B2 and B4, again, their most prominently used I think. These 2 also cover AT&T.
2G and 3G are completely covered. I personally don't use data so just switch to 2G for the better building penetration.
Cheers
Click to expand...
Click to collapse
I have revised the thread to include a link to the thread that led me to ask this question.

Phone_Home said:
I have revised the thread to include a link to the thread that led me to ask this question.
Click to expand...
Click to collapse
Try it, let us know how it works out for you.

AsItLies said:
Try it, let us know how it works out for you.
Click to expand...
Click to collapse
That's the thing, I'm worried to try it because I don't want my only phone to end up a brick. I am not sure if bricked, it would be repairable. As I said I am new to android. I just want to know the risks.

No, you cannot "UNLOCK" bands. It's mostly hardware controlled or very low level firmware.
If the manufacturer could enable it, they probably would.

I used qxdm and unlocked the extra bands. Manufacurers that release several variants of the phone will often times not change their manufacturing process, just the firmware and software. The Mi a2 to 6x conversion is a good example. They support different bands, although they are the same hardware. I was able to enable all bands for TMobile USA. This actually works very well. The sd660 has support for all bands, it is just a matter of software enabling it and the antennas being built in.
This is the tutorial I followed. https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
I also downloaded "hidden android settings" by 0alex, open it and select radio info, then tap the dropdown under "set preferred network type" and choose the "LTE/CDMA/UMTS auto (PRL)"
then exit the app and go to settings > Network and internet > Mobile Network, press the Advanced option, then make sure your preferred network type is set to 4g. This gives me the best results in the USA.
I am currently working on getting VoLTE up and running because every time I get a call it switches to 3g.

Frequency support is first and foremost a matter of hardware, particularly power amplifiers, filters and antennas. It is true that the integrated modems of modern SoCs - including the Snapdragon 660 used in the A2 - can handle many frequency bands but as you can see in below diagram (btw from Qualcomm, the manufacturer of the Snapdragon) there are much more components involved to actually render a device compatible to the various frequency bands:
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I'm not sure what exactly you have done to your phone as the linked tutorial is four years old and refers to various outdated methods and Android versions which do not work on the Xiaomi A2. But the best you might have achieved by those QPST operations is making your phone believe it can handle additional frequency bands when in fact it can't because it lacks the necessary hardware. That can actually adversely affect your phone's performance as it will attempt to connect to cells operating in those "unlocked" frequency bands but due to its inappropriate hardware the radio link will be bad or even completely break down leaving you without a signal. Especially for a phone supporting 4x4 MIMO (LTE category 12) the antennas, amplifiers and filters require a lot of fine tuning which you can't do by software.
Would you perhaps have some screenshots of your phone actually being attached to a cell in an unlocked frequency band (LTE Discovery does show this kind of information) and could you perhaps also perform a speedtest to see if the throughput is appropriate?
Unless we have some bullet-proof evidence of such modification delivering the usual performance on the unlocked frequency bands I would warn anyone against messing around with their phone's low-level radio configuration.

Daha3ker said:
I used qxdm and unlocked the extra bands. Manufacurers that release several variants of the phone will often times not change their manufacturing process, just the firmware and software. The Mi a2 to 6x conversion is a good example. They support different bands, although they are the same hardware. I was able to enable all bands for TMobile USA. This actually works very well. The sd660 has support for all bands, it is just a matter of software enabling it and the antennas being built in.
This is the tutorial I followed. https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
I also downloaded "hidden android settings" by 0alex, open it and select radio info, then tap the dropdown under "set preferred network type" and choose the "LTE/CDMA/UMTS auto (PRL)"
then exit the app and go to settings > Network and internet > Mobile Network, press the Advanced option, then make sure your preferred network type is set to 4g. This gives me the best results in the USA.
I am currently working on getting VoLTE up and running because every time I get a call it switches to 3g.
Click to expand...
Click to collapse
Does this affect system OTA?

i have bought this phones also in hopes of using it with metropcs 4g lte . I have looked on the computer for days now without really getting any good info until i saw this post. i am anxiously awaited more info from you all. especially inquistor. u seem to know what your talking about.

In a day I had a Nexus 5 I bought in USA and couldn't use Israeli 4G because of the same problem. I've managed to do what you're looking for.
Many years have passed since then, but maybe this can still help you in your quest.
Take a look at this thread for more info: https://forum.xda-developers.com/google-nexus-5/general/radio-enable-lte-band-3-nexus-5-d820-t2928561

As this thread seems to be dead, about 1000 people viewed it. Please reply to the thread if you managed to get it working.

Phone_Home said:
As this thread seems to be dead, about 1000 people viewed it. Please reply to the thread if you managed to get it working.
Click to expand...
Click to collapse
I did. I used qxdm 04.00.124. It has more access than what is provided in qxdm 3. Qualcomm changed a few places that the configs were stored. If you can get a hold of qxdm 4+ then it should work. the trouble is that it is not widely available and is not cracked. so you have to pay or know someone who owns it (my case). I also had to modify a few things in the file editor from qxdm. (cant remember what it was called) but I had to add the frequencies to the t-mobile usa tables. If someone wants to dig around, I can verify it is possible. It has been a bit and I thought others found out as well. I may make a guide if nobody else does soon. I just don't have a ton of time lately. I also would have to re-learn what I did. it was like a month ago..

Daha3ker said:
I did. I used qxdm 04.00.124. It has more access than what is provided in qxdm 3. Qualcomm changed a few places that the configs were stored. If you can get a hold of qxdm 4+ then it should work. the trouble is that it is not widely available and is not cracked. so you have to pay or know someone who owns it (my case). I also had to modify a few things in the file editor from qxdm. (cant remember what it was called) but I had to add the frequencies to the t-mobile usa tables. If someone wants to dig around, I can verify it is possible. It has been a bit and I thought others found out as well. I may make a guide if nobody else does soon. I just don't have a ton of time lately. I also would have to re-learn what I did. it was like a month ago..
Click to expand...
Click to collapse
Thanks for the info. I would like to see some proof of this method working such as a video demonstrating the use of this modified phone.

Phone_Home said:
Thanks for the info. I would like to see some proof of this method working such as a video demonstrating the use of this modified phone.
Click to expand...
Click to collapse
https://forum.xda-developers.com/mi-a2/how-to/guide-volte-t-mobile-yes-actually-t3869677
Bands below 800mhz are unstable due to not having any tuning data. Will be releasing a full modded modem soon. :good:

Daha3ker said:
https://forum.xda-developers.com/mi-a2/how-to/guide-volte-t-mobile-yes-actually-t3869677
Bands below 800mhz are unstable due to not having any tuning data. Will be releasing a full modded modem soon. :good:
Click to expand...
Click to collapse
Okay, where should I expect to find it when it's out?

Phone_Home said:
Okay, where should I expect to find it when it's out?
Click to expand...
Click to collapse
.... in the Guides, News & Discussions area. 4x4 does not work, but 2x2 does, but there are some more bands that can be unlocked. I am having trouble making a simple guide. Every device has tuning data that is slightly different and some tuning has to be done for the lower frequencies because it was not done at the factory.

Daha3ker said:
.... in the Guides, News & Discussions area. 4x4 does not work, but 2x2 does, but there are some more bands that can be unlocked. I am having trouble making a simple guide. Every device has tuning data that is slightly different and some tuning has to be done for the lower frequencies because it was not done at the factory.
Click to expand...
Click to collapse
Any news?