Q: Can we Enable more LTE / UMTS bands - HTC One E8

Question, in the following thread it is explained how to enable additional LTE bands. http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
Thread has been written originally only for Samsung, later amended for other phone brands as well. I read that somebody actually enabled LTE to work a - most likely 800MHz band 20 for USA - at his M8 dual SIM. Can this work for HTC phones as well? Want to buy E8 dual SIM but not having 800MHz on LTE withholds me...

daheufster said:
Question, in the following thread it is explained how to enable additional LTE bands. http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
Thread has been written originally only for Samsung, later amended for other phone brands as well. I read that somebody actually enabled LTE to work a - most likely 800MHz band 20 for USA - at his M8 dual SIM. Can this work for HTC phones as well? Want to buy E8 dual SIM but not having 800MHz on LTE withholds me...
Click to expand...
Click to collapse
Hi,
Basic principle if your phone have LTE modem you can setup freq. band using QXDM.
1. Hardware available.
2. Antenna supported with setup LTE freq band.
3. Setting with QXDM to enable LTE freq. band (NV 6828 and NV6829).
Please read carefully on this link : http://forum.xda-developers.com/showpost.php?p=60319568&postcount=1
Additionally you can read more for your better understanding from here :
1. fffft
2. olokos
Again, do it with carefully. Modified radio could brick your phones.

Related

Any chance to enable all LTE frequency supported by MSM8960?

Dear All,
I recently got this device in Hong Kong and is hapi with its performance!
But I am still wondering if this device could actually use the LTE available in HK?
I knw the msm8960 claimed to be capable of utilizing all frequency of radio,
so is it possible that there is some soft lock in the baseband?
Could i flash the baseband or replace the modem driver from other device to access other frequency?
any idea is appreciated!
Thanks!
Vasco
I think it has to modifiy the ROm and the hardware
I tried to figure out, if our Photon Q is supporting more LTE bands than 1900 MHz (#2 or/and #25).
-> http://en.wikipedia.org/wiki/E-UTRA#Frequency_bands_and_channel_bandwidths
On some sites there are reports for having another band. (Have to search again, I think it was 850 MHz, #26 or 700 MHz, #12/#17/#29.)
I have also searched for supported frequencies for MSM8960.
I found some BlackBerry devices based on that SoC and 2 different versions of supported LTE bands.
One version (UK) supported 4 in europe used bands und the other version (US) supported 4 in US/Canada used bands.
I think that the Photon Q is like the BlackBerry US version and supports 4 LTE bands in US/Canada.
If you need a few sites, I will search again and show it to you.
The strange thing is, if I set to LTE only (via 4636) I can see all 4 carrier (germany).
We have 3 bands with LTE on it, but I can only get signal to max 2 of them.
Band 3, 7 and 20 (1800, 2600, 800 MHz).
The weird thing is, that on band #20 (800 MHz) only 3 carrier are active, so it has to be band #3 or #7.
Maybe I'm missinterpreting things and thats just a sideeffect of crossing bands of LTE US and UMTS Germany.
On stock ROM there was another "secret phone code" to see what the phone-part is doing. (From qualcomm I believe.)
I think I will test it some other day, to see which band is active.
At last, I was never been able to "login" or "register" into my carriers network within LTE.
Please discuss about that possibility, I really want to find out, which frequencies are supported by our phone on LTE.
Loader009 said:
I tried to figure out, if our Photon Q is supporting more LTE bands than 1900 MHz (#2 or/and #25).
-> http://en.wikipedia.org/wiki/E-UTRA#Frequency_bands_and_channel_bandwidths
On some sites there are reports for having another band. (Have to search again, I think it was 850 MHz, #26 or 700 MHz, #12/#17/#29.)
I have also searched for supported frequencies for MSM8960.
I found some BlackBerry devices based on that SoC and 2 different versions of supported LTE bands.
One version (UK) supported 4 in europe used bands und the other version (US) supported 4 in US/Canada used bands.
I think that the Photon Q is like the BlackBerry US version and supports 4 LTE bands in US/Canada.
If you need a few sites, I will search again and show it to you.
The strange thing is, if I set to LTE only (via 4636) I can see all 4 carrier (germany).
We have 3 bands with LTE on it, but I can only get signal to max 2 of them.
Band 3, 7 and 20 (1800, 2600, 800 MHz).
The weird thing is, that on band #20 (800 MHz) only 3 carrier are active, so it has to be band #3 or #7.
Maybe I'm missinterpreting things and thats just a sideeffect of crossing bands of LTE US and UMTS Germany.
On stock ROM there was another "secret phone code" to see what the phone-part is doing. (From qualcomm I believe.)
I think I will test it some other day, to see which band is active.
At last, I was never been able to "login" or "register" into my carriers network within LTE.
Please discuss about that possibility, I really want to find out, which frequencies are supported by our phone on LTE.
Click to expand...
Click to collapse
Dear Loader009,
Thanks for your information! I'm really impressed that you could actually search the carrier in 'LTE only from Germany!
Could you please share the version of ROM you are using?
And if possible, any screenshot? I really want it can be used in HK with LTE(1800, 2100 & 2600Mhz)
Also do you have more information about the secret phone code? I think it would be interesting
Actually, I noted that xt925 and xt905 are using the same chip MSM8960 with LTE usable in HK.
Is there anyone can locate the radio/baseband of their rom and port it for XT897?
I am willing to try it with my machine.
If this work, I think we could use this photon q all over the world!
Any idea?
Regards,
Vasco
disablewong said:
Dear Loader009,
Thanks for your information! I'm really impressed that you could actually search the carrier in 'LTE only from Germany!
Could you please share the version of ROM you are using?
And if possible, any screenshot? I really want it can be used in HK with LTE(1800, 2100 & 2600Mhz)
Also do you have more information about the secret phone code? I think it would be interesting
Actually, I noted that xt925 and xt905 are using the same chip MSM8960 with LTE usable in HK.
Is there anyone can locate the radio/baseband of their rom and port it for XT897?
I am willing to try it with my machine.
If this work, I think we could use this photon q all over the world!
Any idea?
Regards,
Vasco
Click to expand...
Click to collapse
Of course, I was just blind guessing the hardware for xt926 and xt907 are using the same hardware.
If not, there should be one chip controlling the modem channel of the device to be replaced.
But WHICH ONE???
Any expert in this area can solve this question? I am a dummy for radio stuffs
This seems like it's getting pretty interesting.
Sent from my XT897 using Tapatalk 2
Dear all,
I'm also very interested in this topic since I imported a Photon Q to Germany and was wondering if it's possible to use the local LTE 800/1800/2600 bands.
I think the first thing we have to find out is whether the hardware is capable of using other bands than the 1900 band listed on the Motorola website. As Loader009 states he could see LTE carriers which are known to use different bands I assume the hardware can do it. Otherwise the carriers wouldn't have been listed, right? Maybe someone from another country with different frequency bands can check and confirm that he can see those carriers as well?
Thus, the limitation to the 1900 band should be software-made and could be modified by a developer. I hope someone can participate at that point as I don't know much about coding...
I'm using CM10.1.
I can't remember the secret phone code, I have to do research again.
This secret phone code only works on Stock ROM. (I stupidly deleted it, when it wasn't working on CM10 anymore.)
The one secret phone code I used to force "LTE only" was *#*#4636#*#*.
Please DON'T change the baseband (don't even tap on it).
This can do problems to you. (I had to use QPST to recover the supported frequencies.)
Also, developers (afaik) can't modify the modem firmware.
We also don't even know, which LTE bands the Photon Q is capable of. (Except 1900 MHz)
I've got my 32GB SDCard back and will test it in the next few days out.
I hope I'll find that secret phone code, I'll also make a few screenshots.
Got the code!
##33284# <- ##DEBUG#
It only works on stock afair!
I'll test tomorrow, it's about 3am now >.<
disablewong said:
Dear All,
I recently got this device in Hong Kong and is hapi with its performance!
But I am still wondering if this device could actually use the LTE available in HK?
I knw the msm8960 claimed to be capable of utilizing all frequency of radio,
so is it possible that there is some soft lock in the baseband?
Could i flash the baseband or replace the modem driver from other device to access other frequency?
any idea is appreciated!
Thanks!
Vasco
Click to expand...
Click to collapse
I have read the "QU_SnapdragonS4_White_Paper_FNL_Rev6.pdf" and found there following entry:
-----------------------------------------------------------
• Industry’s first fully integrated 3G/4G world/multimode LTE Modem: <<<Supports all of the world’s leading 2G, 3G and 4G LTE standards>>>.
It also includes integrated support for multiple satellite position networks (GPS and GLONASS) as well as short range radios via Bluetooth,
WiFi, FM and NFC.
• Designed for speed, compatibility and power savings:
Snapdragon S4 Processor MSM8960 chipset includes the industry’s only complete platform that integrates all of the world’s leading 2G, 3G and 4G mobile broadband modem technologies on a single chip. This new integrated multimode modem is based on an advanced, programmable architecture that is performance, size and power optimized for the fastest combination of modems available for:
- LTE FDD/TDD (Cat3)
- 3G (DC-HSPA+ Cat 24)
- EV-DO Rev. B
- 1x Advanced
- TD-SCDMA
- GSM/GPRS/EDGE NFC.
Multimode/Multiband Means Worldwide Coverage.
• Support for multiple radio frequencies: Mobile broadband technologies are growing increasingly complex in their implementation. LTE is currently being implemented in over 40 diff erent radio frequency bands throughout the world. To complement its wide range of modem standards supported, Qualcomm has designed the Snapdragon S4 Processor MSM8960 CHIPSET platform to <<< address all commonly-used frequencies (from 700–2600 MHz) and bandwidths up to 20 MHz>>>, allowing its customers to address any mobile network opportunity whether the simplest single frequency implementation to the most extensive multi-frequency global mode, whether 4G, 3G or 2G.
-----------------------------------------------------------
Based on the document the chip can handle all LTE Standards, but it depends on his "advanced, programmable architecture"....as written there and how Motorola / Sprint implemented this, maybe they reduced LTE only to one Standard.
I don't have LTE in my area and so I cannot test this.
That's possibly right.
Something else:
If I remember correctly, somewhere in this forum have been said that for CDMA the internal Sprint "ID"(?) is used.
Maybe that's also the reason why I cannot connect to LTE in my area.
The phone is trying to "login" with the Sprint ID and this of course won't work.
The ##DEBUG# menu wasn't helpfull. It shows frequencies for american standards and not for GSM/WCDMA.
Also the LTE menu is also not very helpfull, it doesn't show frequencies at all.
Any News on this topic?
Maybe one of the developers can give a statement?
Yesterday I tested a LTE compatible SIM card.
My Bro has a Samsung Galaxy S4 with 4G/LTE in my area.
So I've put his SIM-Card into my Photon Q and set LTE only.
I had no luck, the Phone couldn't register into the network for this SIM.
I guess either it has the wrong frequencies or LTE is for inbuilt "SIM" (Sprint SIM?) only.
The latter. LTE is configured only for 1900 MHz which Sprint uses.
LTE is configured only for Sprint's frequencies, however, it supports the United States frequencies of PCS blocks A-G. The G Block is Sprint's current LTE channel, and they may deploy it later on Blocks A through F, depending on if they own the spectrum in a given market. The reason you see EU networks when the phone is in LTE Only Mode is most likely because the Phone still sees GSM signals, but will only connect to LTE ones from those GSM signals. Likewise, in the US, if you force LTE Only and then search for networks, AT&T and T-Mobile US will come up as the GSM carriers the Photon Q sees, rather than the LTE signals it sees.
Setting the Photon to LTE Only will not do anything for LTE in the EU. I suspect that if another carrier in the EU uses the 1900 MHz for LTE, the Photon Q will have no issues connecting to LTE in Europe. But until that time, be happy with HSPA.
Skrilax_CZ said:
LTE is configured only for 1900 MHz which Sprint uses.
Click to expand...
Click to collapse
Can this configuration theoretically be changed / other frequencies be added?
Only if you break BP security.
Skrilax_CZ said:
Only if you break BP security.
Click to expand...
Click to collapse
Sorry, what's that?
IIRC The only place with 850mhz LTE available is the Chicago market and currently no phones at all support it. :crying:
Not only does your phone need to support it, your PRL and cell-site does too...

Verizon HTC One M8 - Global Bands Active/configured

Just wanted to give some info I found using QPST(qualcomm software) to see what cell bands are configured for our HTC One M8. I even looked at the Rezound bands as well. As most of you know, verizon didn't carrier lock our phones, so if we switch to global or even GSM network, we can use other carriers GSM SIM cards. Just need to properly configure the APN's of course. Below are the bands that the phone will search for when Global Network is selected. I pulled this configuration from my actual device. The Rezound only was missing Bit 19 & 49 selection, but everything else was selected:
[Bit_00] Band Class 0, A-System
[Bit_01] Band Class 0, B-System
[Bit_02] Band Class 1, all blocks
[Bit_07] GSM DCS 1800 band
[Bit_08] GSM Extended GSM (E-GSM) band
[Bit_09] GSM Primary GSM (P-GSM) band
[Bit_19] GSM 850 band
[Bit_21] GSM PCS 1900 band
[Bit_22] WCDMA Band I - EUROPE JAPAN & CHINA IMT 2100 band
[Bit_23] WCDMA Band II - US PCS 1900 band
[Bit_26] WCDMA Band V - US 850 band
[Bit_49] WCDMA Band VIII - EUROPE & JAPAN 900 band
I'm guessing the reason some of us are having issues on Tmobile is that the AWS bands are missing? Can we enable them somehow?
hyperfire21 said:
I'm guessing the reason some of us are having issues on Tmobile is that the AWS bands are missing? Can we enable them somehow?
Click to expand...
Click to collapse
It could possibly be activated using QPST, but there are other steps to do it. The only issue is that since QPST is the QualComm radio programing, there is potential to lose signal quality or lose all radio functionality. That said, it could also be possible to recover by flashing the original firmware or RUU to recover. I now T-mobile uses 1900 GSM PCS band and AWS 1700 mHZ. There is another program I use to actually enable more bands. The program basically converts the selection of bands to a hexidecimal number to use in QPST software to program the added bands. Again, not sure if the Qualcom chip can use it. There is a WCDMA band selection for Bit (25) IV- US 1700 than could be programed to enable. I used a thread from the Sony Xperia forum to help me use the two programs.
rudyo78427 said:
Just wanted to give some info I found using QPST(qualcomm software) to see what cell bands are configured for our HTC One M8. I even looked at the Rezound bands as well. As most of you know, verizon didn't carrier lock our phones, so if we switch to global or even GSM network, we can use other carriers GSM SIM cards. Just need to properly configure the APN's of course. Below are the bands that the phone will search for when Global Network is selected. I pulled this configuration from my actual device. The Rezound only was missing Bit 19 & 49 selection, but everything else was selected:
[Bit_00] Band Class 0, A-System
[Bit_01] Band Class 0, B-System
[Bit_02] Band Class 1, all blocks
[Bit_07] GSM DCS 1800 band
[Bit_08] GSM Extended GSM (E-GSM) band
[Bit_09] GSM Primary GSM (P-GSM) band
[Bit_19] GSM 850 band
[Bit_21] GSM PCS 1900 band
[Bit_22] WCDMA Band I - EUROPE JAPAN & CHINA IMT 2100 band
[Bit_23] WCDMA Band II - US PCS 1900 band
[Bit_26] WCDMA Band V - US 850 band
[Bit_49] WCDMA Band VIII - EUROPE & JAPAN 900 band
Click to expand...
Click to collapse
I activated all other bands yet i still didn't get LTE, so i assume the restriction is somewhere within the chip perhaps.
band 3
regspy said:
I activated all other bands yet i still didn't get LTE, so i assume the restriction is somewhere within the chip perhaps.
Click to expand...
Click to collapse
hi
did you activate band3? 1800mhz and 2600mhz?
still dont get LTE in europe?
do you have a guide how to enable it?
thanks
boazlaz said:
hi
did you activate band3? 1800mhz and 2600mhz?
still dont get LTE in europe?
do you have a guide how to enable it?
thanks
Click to expand...
Click to collapse
Yes I enabled band 3 and 7 (1800,2600) following the guide posted here
unlock Qualcomm bands
So no euro lte at all yet?
Sent from my HTC6525LVW using XDA Free mobile app
BobbySteel said:
So no euro lte at all yet?
Sent from my HTC6525LVW using XDA Free mobile app
Click to expand...
Click to collapse
Nop, if someone can tell me which Rom has the change bands function then can try that as well. But even after opening the bands I'm only able to get H 14.4mbps.
Are you currently in Europe too? I'm dying to get Vodafone lte on this handset. 3g works fine but I haven't tried the qpst route yet.
BobbySteel said:
Are you currently in Europe too? I'm dying to get Vodafone lte on this handset. 3g works fine but I haven't tried the qpst route yet.
Click to expand...
Click to collapse
In UAE but we use the same LTE bands as Europe. You can try the qpst thing on stock Rom or cleanROM
regspy said:
In UAE but we use the same LTE bands as Europe. You can try the qpst thing on stock Rom or cleanROM
Click to expand...
Click to collapse
I have an old phone info app that's the 4636 menu thing. Hadn't tried this before but just tried assigning the bands there. Somehow that just hosed me and now I only get the 1900 band it seems, so phone is radio-less for me now
BobbySteel said:
I have an old phone info app that's the 4636 menu thing. Hadn't tried this before but just tried assigning the bands there. Somehow that just hosed me and now I only get the 1900 band it seems, so phone is radio-less for me now
Click to expand...
Click to collapse
There's a solution for this problem, if you are s-off-ed. I also did the same thing - i selected USA bands and my phone radio died. Just make a nandroid, flash ARHD , go to the same 4636 menu and it will give you another option in band selection - Auto!! Choose auto, then reboot and make sure you have connection with the network. Then restore from nandroid and you're good to go! I will try to find the link to the original thread!
EDIT: There it is: http://forum.xda-developers.com/showthread.php?t=2773907
If it helps you - thank the people in the original thread, i didn't find this solution, i'm just sharing the info!
vanshee said:
There's a solution for this problem, if you are s-off-ed. I also did the same thing - i selected USA bands and my phone radio died. Just make a nandroid, flash ARHD , go to the same 4636 menu and it will give you another option in band selection - Auto!! Choose auto, then reboot and make sure you have connection with the network. Then restore from nandroid and you're good to go! I will try to find the link to the original thread!
EDIT: There it is: http://forum.xda-developers.com/showthread.php?t=2773907
If it helps you - thank the people in the original thread, i didn't find this solution, i'm just sharing the info!
Click to expand...
Click to collapse
Thanks that was helpful! Somehow I also had recently loaded a Xposed app to show CPU speed on the top bar. I uninstalled that then after two reboots things came back. So odd, but I'm not complaining at this point.
after a google search it seems people have gotten into problems with chaning bands on verizon devices, the above solutions brings the radio back to life. But it certainly doesn't unlock LTE on europe bands.
So i guess its a lost cause, as it must be a hardware limitation
Yeah disappointing that we can't add those
Sent from my HTC6525LVW using XDA Free mobile app
I seem to be able to get Band 4 LTE sometimes on my Verizon M8 but how can we enable AWS HSPA+ bands?
How band 4 only sometimes?
BobbySteel said:
How band 4 only sometimes?
Click to expand...
Click to collapse
I guess my area has weak signal.. switches between LTE and 3g constantly.
Ok guys ive finally unlocked Band 3 and 7 (europe) LTE on Verizon HTC one m8.....
Here are the steps
Thanks to @olokos @BlackSoulxxx @fffft
Original thread for unlocking all bands
wow!
good job
was it hard? im afraid...

[APP][1.6+] NV Calculator - for adding 2G/3G/4G bands to your phone

Use to calculate Qualcomm NV items for adding GSM / WCDMA / LTE bands.
Do you want to add any GSM / WCDMA / LTE bands to your phone? Then use this app to calculate all needed NV items.
This app is only useful for phone with a Qualcomm chipset.
If you don't know how to add GSM / WCDMA / LTE bands to your phone, please refer to this thread. That thread is for S5 model, but the same principle is also applicable for many other phones, e.g. Samsung, LG, Sony, HTC, Nexus...
You also need some NV editor software (e.g. QPST, QXDM, EFS Professional...) on the PC to write these NV items to your phone.
>> NV items description:
- Adding GSM / WCDMA bands:
NV 01877 - RF Band Configuration
NV 00441 - Band Class Preference
NV 00946 - Expand Band Preference 16 to 32 Bits
NV 02954 - Bits 32 to 63 of Band Preference
- Adding LTE bands:
NV 06828 - LTE BC Configuration
NV 06829 - LTE BC Configuration DIV
DOWNLOAD: https://play.google.com/store/apps/details?id=org.vndnguyen.nvcalc
reserved
This app can show the calculation result in 3 formats: Decimal, Hexadecimal and Byte-swapped Hex.
Update v1.0.5:
- Fix UI issue on some devices.
- Add separate notation settings for GSM/WCDMA and LTE calculation. You should not change the default settings unless you know what you are doing.
I'm intersted in Qualcomm NV access, but not for cell band issues. There appear to be GPS issues with some Samsung phones, and there is some indication that those issues are related to a NV "privacy flag". Apparently older ROMs can turn this bit on and off, but newer ROMs don't - whatever value was left there is "stranded" there. There are people flashing back to CM10.x, setting this bit, then flashing back to CM11. I'm presuming that what is really happening is that they're tweaking this on NV location.
If we could simply read the NV location, we could compare its value to GPS functionality, and see if this is really the issue.
If the above is true, and if we could simply write this one NV location, we'd have a heck of a lot simpler GPS fix.
Thanks, vndnguyen, for your app. And it would be very nice if you add CDMA bands to your app. Thanks again.
if i am interested in enabling umts bands in somewhat old msm7227a based motorola, running gb 2.3.7, with no custom recovery, no custom roms or anything, but rooted.
should i even try?
thanks for making this, i wonder if my Snapdragon 600 on LG G Pro E988 can use this to enable China's TD WCDMA and TD LTE, since FDD is kinda different than TDD
vndnguyen said:
Use to calculate Qualcomm NV items for adding GSM / WCDMA / LTE bands.
Do you want to add any GSM / WCDMA / LTE bands to your phone? Then use this app to calculate all needed NV items.
Click to expand...
Click to collapse
Got a question. I found a discrepancy in your calculator.... Your NV calculator values do not match the NV value of the LTE bands my phone already has. So, how can I trust the calculator to give me correct values for additional bands I wish to enable?
It's at the bottom of this post, but I am putting a lot of information about my phone first, so you know the whole situation.
I have 5.2" 1440p, 3GB RAM Moto Maxx (XT1225), which has Snapdragon 805 -- same as the (Motorola) Nexus 6. In fact it was being tested by Google to be the Nexus 6 (or a Nexus 6 variant) as late as mid-August -- but Google decided to go with the larger size variant and only the larger size variant.
Motorola re-purposed this phone as the Verizon Droid Turbo (XT1254) in the USA and as the Moto Maxx (XT1225) now being sold in a handful of Latin America countries. We already have root, TWRP recovery.
When this phone was being tested by the FCC, it had these LTE bands:
But now being sold as the Moto Maxx (SAME FCC ID number), Motorola enabled more GSM bands and changed one of the LTE bands.
They disabled LTE band 5 (a minor AT&T LTE band), and enabled LTE band 3 (which is used more in Latin America countries).
QPST confirms the 2G/3G bands Motorola now claims for this phone:
Which means the LTE bands they now claim (2, 3, 4, 7, 17) are also probably correct.
Again this phone has the SAME FCC ID NUMBER. And as it's being sold in Puerto Rico (U.S. territory), that is very important. That means there's been no hardware change since U.S. FCC certification -- only software change.
Motorola also promises it has the SAME HARDWARE (including antenna) that the Droid Turbo (XT1254) has (even though the Droid Turbo has a different FCC ID number):
This is also important. It means really, Motorola could not sell the Moto Maxx (XT1225) in Puerto Rico (U.S. territory) under that FCC ID number if any radio-specific hardware had been changed at all.
Thus, we know the additional GSM bands, change in the LTE bands by Motorola was software modem change.
With me so far?
___________________________
Now the discrepancy...
In QXDM NV browser, in Line 6828, the XT1225 phone showed a value of 65630 (for LTE bands 2, 3, 4, 7, 17).
Yet, according to your app, with THESE LTE BANDS enabled (2,3,4,7,17)...
it should be THIS value: 65614.
Now I admit that's CLOSE, but it's not the same.
Therefore, how do I trust the calculator to let me enable MORE bands if this default number does not match in your calculator?
I have edited the values of that line to theoretically enable more LTE bands, but if the beginning number from the phone does not match what your calculator number says, then what exactly have I enabled?
ChazzMatt said:
Now the discrepancy...
. . . . .
Now I admit that's CLOSE, but it's not the same.
Therefore, how do I trust the calculator to let me enable MORE bands if this default number does not match in your calculator?
I have edited the values of that line to theoretically enable more LTE bands, but if the beginning number from the phone does not match what your calculator number says, then what exactly have I enabled?
Click to expand...
Click to collapse
Thank you for your patience for a such long post
But the problem was too simple.
Code:
If supporting LTE Bands are [COLOR="Blue"]2, 4, 5, 7, 17[/COLOR]:
NV 6828 = [COLOR="Red"]65,626[/COLOR]
If supporting LTE Bands are [COLOR="Blue"]2, 3, 4, 7, 17[/COLOR]:
NV 6828 = [COLOR="Red"]65,614[/COLOR]
If supporting LTE Bands are [COLOR="Blue"]2, 3, 4, 5, 7, 17[/COLOR]:
NV 6828 = [COLOR="Red"]65,630[/COLOR]
I don't how how many bands does your phone support. But if the value of NV 6828 in the QXDM NV browser is 65,630, that phone should support the following bands: 2, 3, 4, 5, 7, 17.
There is NO discrepancy here.
vndnguyen said:
Thank you for your patience for a such long post
But the problem was too simple.
Code:
If supporting LTE Bands are [COLOR="Blue"]2, 4, 5, 7, 17[/COLOR]:
NV 6828 = [COLOR="Red"]65,626[/COLOR]
If supporting LTE Bands are [COLOR="Blue"]2, 3, 4, 7, 17[/COLOR]:
NV 6828 = [COLOR="Red"]65,614[/COLOR]
If supporting LTE Bands are [COLOR="Blue"]2, 3, 4, 5, 7, 17[/COLOR]:
NV 6828 = [COLOR="Red"]65,630[/COLOR]
I don't how how many bands does your phone support. But if the value of NV 6828 in the QXDM NV browser is 65,630, that phone should support the following bands: 2, 3, 4, 5, 7, 17.
There is NO discrepancy here.
Click to expand...
Click to collapse
So, you are saying the phone supports LTE band 5 out of the box, even though Moto only lists 2,3,4,7,17 on the retail specs?
That after FCC testing they only enabled additional LTE Band 3, but did not disable LTE band 5?
If so, that's interesting.
Only to get you correct: this mod is only to extend the range of usable LTE/GSM bands for roaming, not to extend your connectivity while using your default provider in your home country (e.g. to get better coverage in areas where your default provider has a low signal strenght), right?
orville87 said:
Only to get you correct: this mod is only to extend the range of usable LTE/GSM bands for roaming, not to extend your connectivity while using your default provider in your home country (e.g. to get better coverage in areas where your default provider has a low signal strenght), right?
Click to expand...
Click to collapse
Or when changing from one carrier to another in the same country. Many carriers lock down bands the phone could receive, because they want the phone to only be used on their network.
Okay so I'm not really understanding the whole idea behind this. I have a Sony Xperia Z(C6603) and my phone already supports the LTE bands(LTE_BC1, LTE_BC3, LTE_BC5, LTE_BC7, LTE_BC8, LTE_BC20). My problem is that by default my phone and service provider should be able to have LTE working since my service provider also supports LTE band 4 and 7 on their network but upon choosing LTE network modes it has no reception at all, only 3G and HSPA. So I'm assuming I need to do additional unlocking here on my end for my phone but am not really sure why.
I'm able to access through the hidden menu of *#*#4636#*#* and change radio bands and network modes:
But I haven't changed the radio band and tested it yet because I don't know what the outcome will be and if there are any risks or hard bricking of it and don't know how to revert back to default. My service provider's network supports LTE band 4(2100MHz) and band 7(2600MHz). Would I need to go through QXDM to have these 2 frequencies enabled on my phone? Because I noticed how from the radio band list of my phone shows Euro Band which ends up to be 2600MHz but I'm not sure if that's how to enable LTE because it's Euro radio band. Am I okay as it is with my phone's default radio band and just unlock band 4 and 7 somehow through QXDM? Sorry I'm just really clueless and don't want to risk hard bricking my one and only phone.
sweetandsoursauce said:
Okay so I'm not really understanding the whole idea behind this. I have a Sony Xperia Z(C6603) and my phone already supports the LTE bands(LTE_BC1, LTE_BC3, LTE_BC5, LTE_BC7, LTE_BC8, LTE_BC20). My problem is that by default my phone and service provider should be able to have LTE working since my service provider also supports LTE band 4 and 7 on their network but upon choosing LTE network modes it has no reception at all, only 3G and HSPA. So I'm assuming I need to do additional unlocking here on my end for my phone but am not really sure why.
I'm able to access through the hidden menu of *#*#4636#*#* and change radio bands and network modes:
But I haven't changed the radio band and tested it yet because I don't know what the outcome will be and if there are any risks or hard bricking of it and don't know how to revert back to default. My service provider's network supports LTE band 4(2100MHz) and band 7(2600MHz). Would I need to go through QXDM to have these 2 frequencies enabled on my phone? Because I noticed how from the radio band list of my phone shows Euro Band which ends up to be 2600MHz but I'm not sure if that's how to enable LTE because it's Euro radio band. Am I okay as it is with my phone's default radio band and just unlock band 4 and 7 somehow through QXDM? Sorry I'm just really clueless and don't want to risk hard bricking my one and only phone.
Click to expand...
Click to collapse
Your provider supports LTE bands 4 and 7. Of those two, your phone can receive LTE band 7, but you don't see it. Are you sure LTE band 7 is in your area?
My carrier supports five different LTE bands (and my phone can receive them all), but in my area I only see two of those LTE bands. The others are not used in this area by my carrier (AT&T).
ChazzMatt said:
Your provider supports 4 and 7. Your phone supports 7, but you don't see it. Are you sure 7 is in your area?
My carrier supports 5 LTE bands, but in my area I only see two. The others are not in this area.
Click to expand...
Click to collapse
Yeah my carrier supports band 4 and 7 in my area, the towers are everywhere.
I checked it using this website: http://www.ertyu.org/steven_nikkel/cancellsites.html
both 2100/2600 are within all the cellular towers in my area.
edit: so if I'm able to choose LTE network mode on my phone, does that mean the LTE network mode consists of all these frequencies of LTE_BC1, LTE_BC3, LTE_BC5, LTE_BC7, LTE_BC8, LTE_BC20? So everytime I change to LTE only or LTE/GSM etc etc, automatically my phone has 2100MHz and 2600MHz included? Which means I don't need QXDM to unlock anything further? It might just be a sim card defect or something maybe. Sorry I'm just trying to understand more
Hi
I am trying to use a US note 3 (n900a) on Europe, but I frequently lose connectivity (although bars are full). The only solution I found is to fix wcdma to 2100 freq, however this also means that I lose reception when there is only GSM coverage.
This app seems to be the ultimate solution for me to calculate a custom NV for GSM+wcdma2100. Am I right?
If so, may I use a NV writer without a box, by just using my usb cable?
Thanks a lot
Sent from my SM-N910F using Tapatalk
Update v1.0.6:
- Fix UI issue on some devices.
- Remove the word 'Qualcomm' in the app's title to avoid violation of the Content Policy.
mate do you have or create any nv calculator for frequency bands? Thanks!
Click to expand...
Click to collapse
@tatozan
Hi, in this app you can also find frequency bands
Regards.

Best LG G Pro 2 (model) for T-Mobile LTE

I brought back a Pro 2 F350L from Korea because it was listed in swappa as the Att device unlocked. I took it to T-Mobile put in a sim card which automatically chose the appropriate apns. I only get 3g no lte. I have scoured the web and these forums but cant find the info that tells me wether i got the wrong device for Tmo bands. I need help either configuring the correct bands or correct radio to flash or if this device won't or can't get lte on Tmo network. I am more than happy to reward the parties or person who helps me figure out this problem. If i have the wrong phone then so be it i will get the other model (that gets tmo lte) and unload this F350L. Thanks for any and all help.
In network mode, do you have GSM/WCDMA/LTA auto to select, or just GSM/WCDMA auto?
Service Menu:
Preferred Network Mode: gsm/wcdma/lte
dejop said:
In network mode, do you have GSM/WCDMA/LTA auto to select, or just GSM/WCDMA auto?
Click to expand...
Click to collapse
Yes:
Preferred Network Mode: gsm/wcdma/lte AUTO
I have found the bands for my F350L
LG G PRO 2 F350L
WCDMA- 2100/1900/850, GSM- 900/850/1800/1900 MHZ, LTE- 1/5/3/7/17
wiseguyy said:
I have found the bands for my F350L
LG G PRO 2 F350L
WCDMA- 2100/1900/850, GSM- 900/850/1800/1900 MHZ, LTE- 1/5/3/7/17
Click to expand...
Click to collapse
Looks like you have the wrong phone ... https://support.t-mobile.com/message/435224#435224
Bottom line, for optimal utility a T-Mobile phone needs to be:
1. Quad-band GSM
2. HSPA+ on at least band 2, band 4 & band 1 (2100) for roaming.
3. LTE on bands 1, 2, 4 & 12.
TSF14 said:
Looks like you have the wrong phone ... https://support.t-mobile.com/message/435224#435224
Bottom line, for optimal utility a T-Mobile phone needs to be:
1. Quad-band GSM
2. HSPA+ on at least band 2, band 4 & band 1 (2100) for roaming.
3. LTE on bands 1, 2, 4 & 12.
Click to expand...
Click to collapse
Thanks for all your help Ill post it up on Swapa this weekend.
TSF14 said:
Looks like you have the wrong phone ... https://support.t-mobile.com/message/435224#435224
Bottom line, for optimal utility a T-Mobile phone needs to be:
1. Quad-band GSM
2. HSPA+ on at least band 2, band 4 & band 1 (2100) for roaming.
3. LTE on bands 1, 2, 4 & 12.
Click to expand...
Click to collapse
So seeing the bands I posted would the phone work for ATT? Thats a huge question because it (350L) is posted on Swappa a a ATT phone? At least I can unload it there, LOL.
wiseguyy said:
So seeing the bands I posted would the phone work for ATT? Thats a huge question because it (350L) is posted on Swappa a a ATT phone? At least I can unload it there, LOL.
Click to expand...
Click to collapse
"AT&T 4G HSPA and HSPA+ use 850Mhz(Band 5) and 1900Mhz(Band 2) bands but it all depends on area if they own a license. LTE uses Band 17(700Mhz), Band 5(850Mhz), Band 2(1900Mhz), Band 4(1700/2100Mhz) currently."
https://forums.att.com/t5/Phone-Device-Upgrades/What-are-AT-amp-T-s-4G-LTE-bands/td-p/4067288
My F350S gets LTE on AT&T.
TSF14 said:
"AT&T 4G HSPA and HSPA+ use 850Mhz(Band 5) and 1900Mhz(Band 2) bands but it all depends on area if they own a license. LTE uses Band 17(700Mhz), Band 5(850Mhz), Band 2(1900Mhz), Band 4(1700/2100Mhz) currently."
https://forums.att.com/t5/Phone-Device-Upgrades/What-are-AT-amp-T-s-4G-LTE-bands/td-p/4067288
My F350S gets LTE on AT&T.
Click to expand...
Click to collapse
So the F350S works on ATT and here are Your Phones Bands (as listed here on XDA)
LG F350S
WCDMA - 2100/1900/850, GSM - 900/850/1800/1900 MHz, LTE - 1/5/3/7/17
So will these Bands work with T-Mobile? I really love this device and I am totally hooked on the 5.9 inch screens color so I am hoping your ATT Model (The one your using) will work on T-Mobile? If it does I am more than happy to send you a few duckets
TSF14 said:
Looks like you have the wrong phone ... https://support.t-mobile.com/message/435224#435224
Bottom line, for optimal utility a T-Mobile phone needs to be:
1. Quad-band GSM
2. HSPA+ on at least band 2, band 4 & band 1 (2100) for roaming.
3. LTE on bands 1, 2, 4 & 12.
Click to expand...
Click to collapse
So will this model and bands shown below work on T-Mobile and get roaming and LTE as well?
LG F350S
WCDMA - 2100/1900/850, GSM - 900/850/1800/1900 MHz, LTE - 1/5/3/7/17
So will these Bands work with T-Mobile? Again I am more than happy to send a few duckets $ for your help getting to the bottom of my queries!
wiseguyy, I believe the phone must have band 2 and/or 4 for it to utilize TMO's LTE service. From what I've read, band 1 is used only for roaming. Read the entire thread you quoted above.
12. Re: Refarm and 4G LTE - what are the final frequencies
tmo_sean_l
Citizen Magenta
tmo_sean_l Nov 29, 2014 12:54 PM (in response to memn1)
Great discussion everyone For the most up to date info regarding our network and devices memn1 you'll want to review these links: Setup guide to Bring Your Own Device (BYOD), http://support.t-mobile.com/community/coverage/blog and http://how-to.t-mobile.com/4g-lte/, and Newsroom | T-Mobile Newsroom

[D6603] Brand new device, several basebands missing (ATT) - Help Needed

Good morning xda community,
I just purchased a brand new Z3 (D6603) in addition to my existing Z3C. Before I purchased the device I researched that it has the proper basebands for AT&T. Based on xda, Sony, and various other online sources, the D6603 should support the following bands:
LTE Bands 1, 2, 3, 4, 5, 7, 8, 13, 17, 20; UMTS HSPA+ 850 (Band V), 900 (Band VIII), 1700 (Band IV), 1900 (Band II), 2100 (Band I) MHz; GSM GPRS/EDGE 850, 900, 1800, 1900 MHz​
When I received the phone, I immediately proceeded to root it and update it to 5.1.1. Once I did that, I proceeded to obtain a nano-sim to fit the device. Once I put the nano-sim in I got "no service" whatsoever. The phone doesn't want to connect to AT&T. To test whether or not the nano-sim is defective, I proceeded to take the nano-sim from my Z3C, which is known to be working. Again, "no service" on the Z3. Then I put the new nano-sim in my Z3C and it did work.
In addition, I rebooted the phone numerous times, toggled airplane mode multiple time and also went back to KitKat to ensure it is not a Lollipop issue. All of this did not help.
Following that I proceeded to check the service menu (*#*#7378423#*#*). The phone states it is a D6603 unit. So does the original Sony packaging. However, when I looked at the available (working) basebands in the service menu I couldn't believe what I was seeing:
GSM_850, GSM_900, GSM_1800, GSM_1900, UMTS_BC1, UMTS_BC5, UMTS_BC6, UMTS_BC19, LTE_BC1, LTE_BC3, LTE_BC19, LTE_BC1​
Obviously several LTE basebands are missing when compared to the original specs - some of which I need to connect to AT&T LTE. That said, I also switched the band preference to GSM only and couldn't connect either. Again, the nano-sim is confirmed functioning.
Any idea what this is? Did Sony change the D6603 specs? Any chance I can get to the full baseband spectrum as per the original specs? Right not it is basically a $350 paperweight for me.
In case you suspect the firmware's I used to flash / root / update and subsequently downgrade, I used the following:
D6603_23.0.A.2.93 from here: http://forum.xda-developers.com/z3/general/guide-rootrecovery-how-to-root-install-t3017056
D6603_23.4.A.1.232_Customized_US_SuperSU_XZDR2.8.2 1 from here http://forum.xda-developers.com/z3/general/d6603-5-0-2-flashable-stock-23-1-0-690-t3056361
When flashing, I used FlashTool without any exclusions (meaning that I also flashed the baseband). Full data, Dalvik and Cache wipe was also always performed.
I searched via google as well as here on XDA, but I couldn't find any post which appears to have the same problem. Again, any help would be greatly appreciated. I just want the basebands that the phone was / is advertised with. Thanks in advance!
-Oban
Also, in the Info menu (*#*#4636#*#*), when selecting the band / region, I only get "Japan band" as a selection. This would further indicate that something is off here.
Again, any help is greatly appreciated!
Oban said:
Also, in the Info menu (*#*#4636#*#*), when selecting the band / region, I only get "Japan band" as a selection. This would further indicate that something is off here.
Again, any help is greatly appreciated!
Click to expand...
Click to collapse
Hi Oban,
Try turning off LTE and see if that helps.
There is some issue with AT&T's HD Voice which works on LTE causing issues
http://forum.xda-developers.com/att...ming-calls-lte-mode-m8-att-arhd-34-0-t3026710
Also, where do you see the list of bands in service menu. I couldn't find it
@aviralmsharma, thank you for your response. Turning LTE off doesn't do anything to change the situation. I tried LTE only, GSM only and every combo in between.
The list of available basebands is in the service menu *#*#7378423#*#* -> Service Info -> Configuration.
As for the "Japan band", that is in the info menu *#*#4636#*#* -> Phone Information -> upper right corner where the three "..." are -> Select radio band.
Oban said:
@aviralmsharma, thank you for your response. Turning LTE off doesn't do anything to change the situation. I tried LTE only, GSM only and every combo in between.
The list of available basebands is in the service menu *#*#7378423#*#* -> Service Info -> Configuration.
As for the "Japan band", that is in the info menu *#*#4636#*#* -> Phone Information -> upper right corner where the three "..." are -> Select radio band.
Click to expand...
Click to collapse
Lol, the ROM I'm using somehow managed to not show anything
Working Band/s: Unknown error
.
Attached is how it looks for me. Sorry for the bad quality, but i had to take a picture of the phone with my Z3C. And i am currently somewhere over the U.S. In an airplane, so upload is painfully slow.
Any idea how we can fix my D6603?
Oban said:
Attached is how it looks for me. Sorry for the bad quality, but i had to take a picture of the phone with my Z3C. And i am currently somewhere over the U.S. In an airplane, so upload is painfully slow.
Any idea how we can fix my D6603?
Click to expand...
Click to collapse
You're right, I do see more bands. Could that be because of the ROM you're running and/or radio?
Attached is screenshot from my phone. Installed a different ROM
.
Aviralmsharma, i honestly don't know. That isnwhy i posted the question here at xda to begin with.
As you can see from my original post, i used the firmwares that are commonly available here at xda and have been used by many people before. I even used the U.S. Generic firmware version when i updated to 5.1.1.
Obviously something isn't right with my D6603. What should I do? I fear flashing the baseband in FlashTool isn't going to fix it. Is there a way to flash or enable the radio so it reads the proper bands?
AT&T
Please make sure APN is Setup properly for your carrier
gwithrow said:
AT&T
Please make sure APN is Setup properly for your carrier
Click to expand...
Click to collapse
The APN setting are correct and set for AT&T. I compared it to my Z3C, which is also on AT&T, as well as to AT&T's APN information available through their website. I still believe the issue is related to the fact that my D6603 does not list LTE band 2, 4, 5, and 17 as working bands - all of which are AT&T's LTE bands.
Any other suggestions that might work?
More suggestions
There is another thread that I cannot find right now that details how to unlock bands on our phones. I believe it originated in the Samsung threads but I am often wrong
Found it
http://forum.xda-developers.com/member.php?u=4300205
@Oban I believe that you do not have a international D6603. You seem to have purchased one of the Japanese models hence the missing bands and the Japan radio band selection. I suggest you try to return the phone to the place of purchase.
gwithrow said:
Found it
http://forum.xda-developers.com/member.php?u=4300205
Click to expand...
Click to collapse
I'll check this out this weekend. Thanks!
kansasboy001 said:
@Oban I believe that you do not have a international D6603. You seem to have purchased one of the Japanese models hence the missing bands and the Japan radio band selection. I suggest you try to return the phone to the place of purchase.
Click to expand...
Click to collapse
Kansasboy, wow... so Sony created a sub-version of the D6603 (carrying no specifically different model number) which differs from the international (or what I would call standard) D6603 model?
Is this "Japanese model" the same, hardware-wise, as the international model? Meaning, are the basebands excluded because of hardware limitations, or is it the software? If it is the latter, can the software be modified (as suggested in other threads - enabling bands on Qualcomm radios)? Or is the only way to return it as per your original suggestion?
Oban said:
I'll check this out this weekend. Thanks!
Kansasboy, wow... so Sony created a sub-version of the D6603 (carrying no specifically different model number) which differs from the international (or what I would call standard) D6603 model?
Is this "Japanese model" the same, hardware-wise, as the international model? Meaning, are the basebands excluded because of hardware limitations, or is it the software? If it is the latter, can the software be modified (as suggested in other threads - enabling bands on Qualcomm radios)? Or is the only way to return it as per your original suggestion?
Click to expand...
Click to collapse
Based on the bands you have, your phone is the SO-01G model for docomo mobile in Japan that has been flashed with the D6603 firmware, hence the D6603 model. The S0-01G has 32gb of storage which you would find by flashing the S0-01G firmware. I can not guarantee you that the bands you are missing could be enabled. It depends if Sony simply disabled the bands in the modem or if the phone actually has a different radio filter than the D6603. I have successfully unlocked lte band 12 on my D6603 and will be more than happy to walk you through the steps in unlocking bands. However if I were you I would simply return the phone and get a real D6603
kansasboy001 said:
Based on the bands you have, your phone is the SO-01G model for docomo mobile in Japan that has been flashed with the D6603 firmware, hence the D6603 model. The S0-01G has 32gb of storage which you would find by flashing the S0-01G firmware. I can not guarantee you that the bands you are missing could be enabled. It depends if Sony simply disabled the bands in the modem or if the phone actually has a different radio filter than the D6603. I have successfully unlocked lte band 12 on my D6603 and will be more than happy to walk you through the steps in unlocking bands. However if I were you I would simply return the phone and get a real D6603
Click to expand...
Click to collapse
So... I did spend some time playing with the bands and working through the qualcomm band enabling thread on xda. I managed to enable everything needed and now the working bands read as follows:
GSM_850, GSM_900, GSM_1800, GSM_1900, UMTS_BC1, UMTS_BC2, UMTS_BC4, UMTS_BC5, UMTS_BC6, UMTS_BC8,, UMTS_BC19, LTE_BC1, LTE_BC2, LTE_BC3, LTE_BC4, LTE_BC5, LTE_BC7, LTE_BC8, LTE_BC13, LTE_BC17, LTE_BC20​
I also went into the *#*#INFO#*#* menu and enabled "USA Band" (previously I only had the Japan Band option). I also toggled airplane mode multiple times and rebooted the device more than once.
Now the bad news: still no service. I recognizes the sim card, but it doesn't connect / register with the network. I also triple checked the APN setting.
Before flashing it again back to stock: any last suggestion / trick I should attempt?
Oban said:
So... I did spend some time playing with the bands and working through the qualcomm band enabling thread on xda. I managed to enable everything needed and now the working bands read as follows:
GSM_850, GSM_900, GSM_1800, GSM_1900, UMTS_BC1, UMTS_BC2, UMTS_BC4, UMTS_BC5, UMTS_BC6, UMTS_BC8,, UMTS_BC19, LTE_BC1, LTE_BC2, LTE_BC3, LTE_BC4, LTE_BC5, LTE_BC7, LTE_BC8, LTE_BC13, LTE_BC17, LTE_BC20​
I also went into the *#*#INFO#*#* menu and enabled "USA Band" (previously I only had the Japan Band option). I also toggled airplane mode multiple times and rebooted the device more than once.
Now the bad news: still no service. I recognizes the sim card, but it doesn't connect / register with the network. I also triple checked the APN setting.
Before flashing it again back to stock: any last suggestion / trick I should attempt?
Click to expand...
Click to collapse
Did you add the reserved for bc10 to the value in 1877 and the guide for the xperia z2 lte unlock said in the thread?
kansasboy001 said:
Did you add the reserved for bc10 to the value in 1877 and the guide for the xperia z2 lte unlock said in the thread?
Click to expand...
Click to collapse
Yes Sir. mzTool has the following selected:
[07] DCS 1800
[08] Extended GSM (E-GSM)
[19] GSM 850
[21] PCS 1900
[22] I - European Japan China IMT 2100
[23] II - US PCS 1900
[25] IV - US 1700
[26] V - US 850
[49] VIII - Europe Japan 900
[60] Reserved for BC10 - 1700
Modified NV id's 441, 946, 2954 and 1877 as follows, using QPST and QXDM:
441: 384 / 0x180
946: 1768 / 0x6E8
2954: 268566528
1877: 1153484454676136320
For LTE the value was set as follows: 594143 / 10010001000011011111
Am I missing something?
And one more comment: I did all the above on the 23.0.A.2.93 Generic Canada firmware (I couldn't find a US Version, and I wanted to try something beside the Generic Global).
Would it be worth it to try all of the above modifications on the SO-01G-specific firmware?
kansasboy001 said:
@Oban I believe that you do not have a international D6603. You seem to have purchased one of the Japanese models hence the missing bands and the Japan radio band selection. I suggest you try to return the phone to the place of purchase.
Click to expand...
Click to collapse
Alright, despite the afford, the wife told me to stop tinker with it and send it back. It's now on the way back to Amazon. I hope i can find a true international D6603 that will work as advertised.
@kansasboy001, i do want to thank you for yoyr replies and help. I didn't even know there was a Japanese version of the phone. Appreciate it.

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