[Q] Enable GSM Bands on SM-T217S? - Galaxy Tab 3 Q&A, Help & Troubleshooting

Does anyone know of a way to enable the GSM/LTE bands but leave all of the CDMA/LTE bands still enabled? Or at least to enable the GSM/LTE bands while disabling the CDMA bands? If a solution is not known, would it be safe to flash in the SM-T217A or SM-T217T firmware(s) and then unlock the bands? Thanks for any help given.

Same problem
frog7227 said:
Does anyone know of a way to enable the GSM/LTE bands but leave all of the CDMA/LTE bands still enabled? Or at least to enable the GSM/LTE bands while disabling the CDMA bands? If a solution is not known, would it be safe to flash in the SM-T217A or SM-T217T firmware(s) and then unlock the bands? Thanks for any help given.
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according've researched this tablet is only sprint cdma only, no way to switch to gsm, I have tried everything and nothing, keeps saying invalid sim what led me to the conclusion,if you want a gsm have to buy one with companies that use GSM technology.

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Which HSPA/UMTS band does the M9 unlocked US version support?

Found much conflicting info on HSPA band support for the US unlocked/developer model.
htc.com says it supports 3G UMTS: 850/900/1900/2100 MHz. But is also says it supports 4G LTE: FDD: Bands 1,3,5,7,8,20,28, which is COMPLETELY wrong so i don't know if to trust htc.com.
Can anyone confirm the UMTS band support for this device? I am most interested in 900mhz UMTS because of trips to New Zealand where 900 mhz UMTS is often used.
Thanks!
Bump.
urushiol said:
Found much conflicting info on HSPA band support for the US unlocked/developer model.
htc.com says it supports 3G UMTS: 850/900/1900/2100 MHz. But is also says it supports 4G LTE: FDD: Bands 1,3,5,7,8,20,28, which is COMPLETELY wrong so i don't know if to trust htc.com.
Can anyone confirm the UMTS band support for this device? I am most interested in 900mhz UMTS because of trips to New Zealand where 900 mhz UMTS is often used.
Thanks!
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Really dont know about it, but as far as i know you can flash radio bands anyways, so look for it on the web or this site, i use dev with no prblems at all in mexico with LTE. =D
Bump.
LLegion said:
Really dont know about it, but as far as i know you can flash radio bands anyways, so look for it on the web or this site, i use dev with no prblems at all in mexico with LTE. =D
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Is that really true?
I am looking into getting the HTC One M9 through AT&T but may switch to T-Mobile in the future.
As such I want a phone that fully supports both networks ...
I found a thread that it is supposedly possible to flash the AT&T phone to support developer ROMs but I can't find any information whether it is possible to also change band support. According to GSM Arena the AT&T version of the phone also supports LTE band 4 and 12 (needed for T-Mobile) but it doesn't support VoLTE on band 12, nor does it have 3G AWS (1700/2100), though of course there is a T-Mobile version of the phone WITH support for all of those.
Can I simply flash my phone so that I can (a) use CM13/AOSP roms and (b) so that the radio uses the proper AT&T or T-Mobile bands and tech?
andTab said:
Is that really true?
I am looking into getting the HTC One M9 through AT&T but may switch to T-Mobile in the future.
As such I want a phone that fully supports both networks ...
I found a thread that it is supposedly possible to flash the AT&T phone to support developer ROMs but I can't find any information whether it is possible to also change band support. According to GSM Arena the AT&T version of the phone also supports LTE band 4 and 12 (needed for T-Mobile) but it doesn't support VoLTE on band 12, nor does it have 3G AWS (1700/2100), though of course there is a T-Mobile version of the phone WITH support for all of those.
Can I simply flash my phone so that I can (a) use CM13/AOSP roms and (b) so that the radio uses the proper AT&T or T-Mobile bands and tech?
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WELL I DONT BELIVE cm13/AOSP WOULD BE BEST OPTION I FLASHED DVEELOPER 2.11 AND OVER IT VIPERONE 3.5.0 (WWE BASE 2.10) ANS WORKS FINE, AFAIK.... TELCEL BANDS (MEXICO) ARE FULLY COMPATIBLE AND PRETTY MUCH THE SAME AS ATT, ACTUALLY I FOLLOWED IN THE HTC M9 THREAD HOW TO CHANGE MY PHONE (ATT) TO DEVELOPER EVEN WHEN I HAVE TELCEL AND IT WORKED!!! =D YOU SHOULD HAVE NO ISSUE.
LLegion said:
WELL I DONT BELIVE cm13/AOSP WOULD BE BEST OPTION I FLASHED DVEELOPER 2.11 AND OVER IT VIPERONE 3.5.0 (WWE BASE 2.10) ANS WORKS FINE, AFAIK.... TELCEL BANDS (MEXICO) ARE FULLY COMPATIBLE AND PRETTY MUCH THE SAME AS ATT, ACTUALLY I FOLLOWED IN THE HTC M9 THREAD HOW TO CHANGE MY PHONE (ATT) TO DEVELOPER EVEN WHEN I HAVE TELCEL AND IT WORKED!!! =D YOU SHOULD HAVE NO ISSUE.
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What I am asking is very different: AT&T and T-Mobile DO NOT use the same bands (e.g. AWS for T-Mobile) nor the same tech (VoLTE on band 12)
OHH I SEE SORRY, WELL WHATEVER, YOU CAN FLASH RADIO BANDS AS WELL AND SUPPORT OTHER CARRIERS, JUST read here... http://forum.xda-developers.com/one-m9/general/recovery-flashable-radio-zip-t3122983
---------- Post added at 02:47 PM ---------- Previous post was at 02:42 PM ----------
andTab said:
What I am asking is very different: AT&T and T-Mobile DO NOT use the same bands (e.g. AWS for T-Mobile) nor the same tech (VoLTE on band 12)
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and also check it on here... https://www.androidfilehost.com/?w=files&flid=32827
andTab said:
What I am asking is very different: AT&T and T-Mobile DO NOT use the same bands (e.g. AWS for T-Mobile) nor the same tech (VoLTE on band 12)
Click to expand...
Click to collapse
and also check it on here... https://www.androidfilehost.com/?w=files&flid=32827
---------- Post added at 03:03 PM ---------- Previous post was at 02:47 PM ----------
andTab said:
What I am asking is very different: AT&T and T-Mobile DO NOT use the same bands (e.g. AWS for T-Mobile) nor the same tech (VoLTE on band 12)
Click to expand...
Click to collapse
and also check it on here... https://www.androidfilehost.com/?w=files&flid=32827
All this info is about LTE bands. I am curious about HSPA/UMTS bands. I would like to know what it supports out of the box, not what I can with mods.
Thanks!
urushiol said:
All this info is about LTE bands. I am curious about HSPA/UMTS bands. I would like to know what it supports out of the box, not what I can with mods.
Thanks!
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http://www.gsmarena.com/htc_one_m9-6891.php
Google is your friend.
And in case you didn't notice: I was asking about AWS and VoLTE since LTE bands are the same.
urushiol said:
All this info is about LTE bands. I am curious about HSPA/UMTS bands. I would like to know what it supports out of the box, not what I can with mods.
Thanks!
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The T-mobile version of the M9 supports the most bands. The AT&T and Developer Edition are identical and are missing some bands needed for t-mobile LTE (Volte) support in some areas. Flashing different radios will not enable bands the phone does not have. Theirs more information in the T-mobile M9 forums
http://forum.xda-developers.com/one-m9/general/how-to-change-network-bands-gsm-devices-t3135401
http://forum.xda-developers.com/tmo...-1-32-617-30-dev-edition-rom-tmobile-t3078315
andTab said:
http://www.gsmarena.com/htc_one_m9-6891.php
Google is your friend.
And in case you didn't notice: I was asking about AWS and VoLTE since LTE bands are the same.
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Thanks for the reply. I have checked GSM arena, plus anything else I could find on google. I don't see a listing for the unlocked/developer edition on this page. I see EMEA, Verizon, ATT and T-mobile.
And yes, sorry, I didn't realized there was an AWS for HSPA, i was just thinking about band 4 LTE on ATT which I think is AWS.
clsA said:
The T-mobile version of the M9 supports the most bands. The AT&T and Developer Edition are identical and are missing some bands needed for t-mobile LTE (Volte) support in some areas. Flashing different radios will not enable bands the phone does not have. Theirs more information in the T-mobile M9 forums
http://forum.xda-developers.com/one-m9/general/how-to-change-network-bands-gsm-devices-t3135401
http://forum.xda-developers.com/tmo...-1-32-617-30-dev-edition-rom-tmobile-t3078315
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Thank you.
That's what I figured.
Sadly that means I won't get this phone.
Bump. Hoping someone can find a straight answer have been on the phone twice with HTC, even they can't provide a straight answer. I ever addressed them on twitter. No luck. Thanks in advance.
Bump!
Bump
urushiol said:
Found much conflicting info on HSPA band support for the US unlocked/developer model.
htc.com says it supports 3G UMTS: 850/900/1900/2100 MHz. But is also says it supports 4G LTE: FDD: Bands 1,3,5,7,8,20,28, which is COMPLETELY wrong so i don't know if to trust htc.com.
Can anyone confirm the UMTS band support for this device? I am most interested in 900mhz UMTS because of trips to New Zealand where 900 mhz UMTS is often used.
Thanks!
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Click to collapse
It's pretty difficult to find out info on band support, and I have no idea why. It should be readily available...
Anyway, have a look at this: http://wireless.fcc.gov/hac_documents/150813/9135276_21.PDF
Based on that, there are four models sold in the U.S., which are:
0PJA100 (which appears to be the AT&T version)
0PJA120 (which appears to be the TMO USA version)
0PJA200 (which appears to be the Sprint version)
0PJA300 (which appears to be the Verizon version)
The AT&T model supports the following: UMTS 850MHz, 1900MHz and 2100MHz.
Now, that said, if you look on AT&T's site, they list their model as 0PJA110, so obviously either the FCC site is wrong or the AT&T site is wrong.
I happen to have the 0PJA110 model, which is also the Rogers model (so it would make sense that the AT&T version is 0PJA110 because Rogers and AT&T generally have the same devices, and their networks are generally the same frequencies). Based on HTC Canada's site, the Rogers model supports UMTS 850MHz, 1700MHz, 1900MHz and 2100MHz.
Now, for the assumption: From what I have read (but I haven't personally confirmed), the unlocked and developer models are the same as the AT&T model. If that is indeed the case, then you have your answer: No UMTS 900MHz support the unlocked and/or developer models (in fact, not UMTS support on any U.S. model).
efrant said:
Anyway, have a look at this: http://wireless.fcc.gov/hac_documents/150813/9135276_21.PDF
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I know this is a delayed followup, but I wanted to say thanks for this. I finally got HTC to confirm that UMTS 850MHz, 1700MHz, 1900MHz and 2100MHz are the official specs for the US unlocked edition(which, oddly, is marked 0PJA110 on the back).
I am pushing them for a refund for false advertising. I was so concerned that these specs could be wrong before I purchased the phone, that I did a chat with HTC and they assured me the correct specs were UMTS 850MHz, 900MHz, 1700MHz, 1900MHz and 2100MHz. Once they confirmed these specs for me, I purchased the phone. Now they confirm they told me wrong. Very frustrating experience.
I am waiting to hear back about getting a refund. I am hoping the come through, this is crazy.

How to unlock all lte bands on htc one m8x lte-a (taiwanese, asian or krat version)

I've been reading in a lot of threads about changing radios and versions, and unlocking bands. NO ONE with SUCCESS, for example:
http://forum.xda-developers.com/showthread.php?p=52361472#post52361472
So, if someone could give me an advice. My carrier in Mexico works on AWS LTE BAND 4.
Do i have any chance to get LTE with this phone?

Unlocked at&t m8 only gets edge on T-Mobile please help

What's up guys so let me start out by stating I am no noob when it comes to ROM related funness however I am new to HTC stuff. I bought a at&t HTC one m8 and unlocked the phone then unlocked the bootloader and S off then realized I could only get edge data so I did some reaserch and really can't find anything in how to fix this minus I read how to change the cid to cid 11111111 but still I have no LTE 4g hspa or even 3g any help will be greatly appreciate thanks in advanced.
Sent from my m8 using Tapatalk
This may sound silly, but do you have the right APN? If you have, then may be reflash of the firmware can help.
harihacker said:
This may sound silly, but do you have the right APN?
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That doesn't sound silly at all.
AT&T version supports the bands used by T-Mobile for LTE (4 and 17). Also supports all the bands used by T-Mobile for 3G, with the exception of the AWS band, which from what I'm hearing T-Mob has mostly migrated from AWS on 3G (so they can use the AWS band for LTE).
The band support is there, so either the SIM card is bad (does it work for 3G and LTE on another device) or wrong APN.

I need help with lg g4 h815 (lte problems)

So since i have the phone the lte bands are not working, i dont know why, but the thing is that when i do the field test>modem settings >lte band section, all the bands dont work, just say fail.
So i try to unlocking lte by dfs cdma tool, but no lte tab was displayed only the gsm and wcdma(and all the bands checked). What can i do to get lte working?
Sorry for my english

LTE Bands support - B8 (900) missing

hi guys,
I'm considering asking a colleague in the states to purchase and send me a Pixel XL.
I did a bands support check for my Taiwanese network and the Pixel supports 2 out of 3 of the used LTE bands on my network (Chungwa). The only one missing is B8 (900).
Anyone with knowledge of how LTE networks work care to enlighten me what the side-effect of this could be? Am I going to be having connectivity issues?
That'd depend entirely on how that particular carrier deploys its LTE. Some carriers use all their bands available, while others use some bands in one area and different bands in another.
iamhacked said:
That'd depend entirely on how that particular carrier deploys its LTE. Some carriers use all their bands available, while others use some bands in one area and different bands in another.
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Thanks for the info. Would there be any way for me to find this out?
Willyman said:
Thanks for the info. Would there be any way for me to find this out?
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I personally would install LTE Discovery and see what your current phone connects to in your area
That's odd. I thought band 8 is needed to get LTE with Chunghwa Telecom.

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