Develop Bugs

Is it really possible to make a Diamond quad-band?

Dear colleagues,
I have bought a Diamond in France 1 week ago and tryed to flash its ROM to a quad-band one. My device is hardSPL with diamond-hspl-1.24 and flashed the ROM 1.93.831.1 WWE.
Follow the device information:
ROM version: 1.93.831.1 WWE
ROM date: 07/18/08
Radio Version: 1.00.25.05
Protocol version: 52.29.25.12H
But is still appears at phone settings section to select GSM/UMTS band only:
UMTS (900+2100) + GSM (900+1800)
What could possibly be wrong?
Thanks.

Your radio is a quad-band radio, so you have quad-band now, if it does not show up it maybe because of the ROM that you are using, but if you were to go to a place that uses the 850 band it will pick it up, even if its not shown there, as long as you leave it on auto.

Thanks, but are you sure? Just to confirm. I am not doubting on you.
Which English ROM may I use to show up the settings GSM (850+1900).
Thanks again.

I forgot to say that when I try to make a videocall a message shows up saying that the 3G network is not available. And I am on an area with 850 MHz (State of Minas Gerais, Brazil; operator TIM).

Nicolini said:
I forgot to say that when I try to make a videocall a message shows up saying that the 3G network is not available. And I am on an area with 850 MHz (State of Minas Gerais, Brazil; operator TIM).
Click to expand...
Click to collapse
You have a Europe Diamond, it wont work on any Americas network.
You need a US spec Diamond to work on the 850mgz 3G.
Up till know it has almost been confirmed its a Hardware matter.
All diamonds are quad.

Sergio PC said:
You have a Europe Diamond, it wont work on any Americas network.
You need a US spec Diamond to work on the 850mgz 3G.
Up till know it has almost been confirmed its a Hardware matter.
All diamonds are quad.
Click to expand...
Click to collapse
Sergio
If you say all diamonds are quad what is the problem in working in americas networks? Of course with the right rom.

Nicolini said:
Sergio
If you say all diamonds are quad what is the problem in working in americas networks? Of course with the right rom.
Click to expand...
Click to collapse
As far as I know ROM has no important effect on Radio. For they are independent. Thats why they are flashed separately.
GSM frequency is one thing and another is the 3G frequency.
Greetings.

to confirm that you have 850mhz gsm which is quadband, goto phone and enter
*#*#364#*#* to launch field test.
now under the BAND section it will say 850 when you are using that frequency. try it when your in a mall or underground somewhere otherwise it will say PCS wich is 1900mhz.
i recommend leaving your phone settings to AUTO.

Blazeitup123 said:
to confirm that you have 850mhz gsm which is quadband, goto phone and enter
*#*#364#*#* to launch field test.
now under the BAND section it will say 850 when you are using that frequency. try it when your in a mall or underground somewhere otherwise it will say PCS wich is 1900mhz.
i recommend leaving your phone settings to AUTO.
Click to expand...
Click to collapse
mine says 255: (unknown), what does that mean

Blazeitup123 said:
to confirm that you have 850mhz gsm which is quadband, goto phone and enter
*#*#364#*#* to launch field test.
now under the BAND section it will say 850 when you are using that frequency. try it when your in a mall or underground somewhere otherwise it will say PCS wich is 1900mhz.
i recommend leaving your phone settings to AUTO.
Click to expand...
Click to collapse
Mine shows: 1CS
What does it mean? I am not in a mall or undergroud. rsss

Ok, your phone have quad band on the GSM network, so you'll be able to use the EDGE, and GPRS data and phone service, while the 3G band on your diamond is Euro spec, so it won't pick up the 850Mhz/1900Mhz band (instead it'll pick up 900/2100mhz band).

joshyth said:
Ok, your phone have quad band on the GSM network, so you'll be able to use the EDGE, and GPRS data and phone service, while the 3G band on your diamond is Euro spec, so it won't pick up the 850Mhz/1900Mhz band (instead it'll pick up 900/2100mhz band).
Click to expand...
Click to collapse
That's correct, I didin't realize you were talkink about 3G, you'll not get it with a european diamond.

It's really strange. Me with my two friends have two T-mobile MDA Compact IV from Germany and one O2 XDA Ignito from UK.
In Menu Start-> SERVICES-> BAND-> shown:
1st) T-Mobile Germany was with original 1.37 German ROM, but I put original T-Mobile UK 1.37 ROM WWE. In both ROM's was same info.
"Select your network type"
- Auto
- GSM
(Where is WCDMA?!!!)
"Select your GSM/UMTS band"
- Auto
- UMTS(900+2100)+GSM(900+1800)
- UMTS(850+1900)+GSM(850+1900)
2nd) T-Mobile Germany was with same original 1.37 German ROM, but I put Diamond.ASerg.23.RUS.
"Select your network type"
- Auto
- GSM
- WCDMA
"Select your GSM/UMTS band"
- Auto
- UMTS(900+2100)+GSM(900+1800)
- UMTS(850+1900)+GSM(850+1900)
- UMTS(800+2100)
- UMTS(850+2100)+GSM(900+1800)
- UMTS(850)+GSM(900+1800)
- UMTS(1700)
3rd) O2 XDA Ignito from O2 UK (original UK O2 1.93 ROM WWE):
"Select your network type"
- Auto
- GSM
- WCDMA
"Select your GSM/UMTS band"
- Auto
- GSM(900+1800)+UMTS(2100)
- GSM(1900)
Why is the difference in network's shown? Is it means that T-mobile MDA Compact IV (HTC Victor) have different hardware?
Does new ROM affect available network type?

cheyenne said:
It's really strange. Me with my two friends have two T-mobile MDA Compact IV from Germany and one O2 XDA Ignito from UK.
In Menu Start-> SERVICES-> BAND-> shown:
1st) T-Mobile Germany was with original 1.37 German ROM, but I put original T-Mobile UK 1.37 ROM WWE. In both ROM's was same info.
"Select your network type"
- Auto
- GSM
(Where is WCDMA?!!!)
"Select your GSM/UMTS band"
- Auto
- UMTS(900+2100)+GSM(900+1800)
- UMTS(850+1900)+GSM(850+1900)
2nd) T-Mobile Germany was with same original 1.37 German ROM, but I put Diamond.ASerg.23.RUS.
"Select your network type"
- Auto
- GSM
- WCDMA
"Select your GSM/UMTS band"
- Auto
- UMTS(900+2100)+GSM(900+1800)
- UMTS(850+1900)+GSM(850+1900)
- UMTS(800+2100)
- UMTS(850+2100)+GSM(900+1800)
- UMTS(850)+GSM(900+1800)
- UMTS(1700)
3rd) O2 XDA Ignito from O2 UK (original UK O2 1.93 ROM WWE):
"Select your network type"
- Auto
- GSM
- WCDMA
"Select your GSM/UMTS band"
- Auto
- GSM(900+1800)+UMTS(2100)
- GSM(1900)
Why is the difference in network's shown? Is it means that T-mobile MDA Compact IV (HTC Victor) have different hardware?
Does new ROM affect available network type?
Click to expand...
Click to collapse
the bands in setting can show any bands all they want, but it will only work if there is the 3G chipset to use it. So even if your phone show 850/1900 on a Euro Spec diamond, it's still not going to work with US 3G. The only reason that it showed them all is probably the rom that you are using have all the known bands to show in setting by editing the registry.

joshyth said:
the bands in setting can show any bands all they want, but it will only work if there is the 3G chipset to use it. So even if your phone show 850/1900 on a Euro Spec diamond, it's still not going to work with US 3G. The only reason that it showed them all is probably the rom that you are using have all the known bands to show in setting by editing the registry.
Click to expand...
Click to collapse
Ok. Thanks. But how can I know the chipset I am using and if it is a 3G chipset? And more, When buying another phone how can I know it works in over 3G in any band?
Another thing: Taking a look in HTC french web page, in "diamond specifications" we can see:
Europe/Asie : 900/2100 MHz, USA : 850/1900 MHz
GSM triband/GPRS/EDGE :
Europe/Asie : 900/1800/1900 MHz, USA : 850/1800/1900 MHz
My Diamond was bought in France.

Sorry ... but I think you are wrong saying that it is any hardware issue or that it won't work. Please see existing threads in Raphael section, it has already been discussed.
As for Diamond !! we are 100% sure that the hardware is fine for all bands (3g and gsm) except WCDMA 800, as the calib data does exist and the hardware itself is capable. All Diamond I have seen so far have an rtr6285 and also the newer radio firmware support all bands except WCDMA 800. If using newer radio doesn't work (quadband enabled), so it is a ROM/SPL issue as it seems or your device needs updated nvitems.
As for Raphael, it is the same, except that this one might have an hardware issue (antenna).
We (me, cmonex and olipro) are working on this issue already. Once we get the diag port running on EU Diamonds, we are sure we can enable it for all bands (except 800 WCDMA).
Cya,
Viper BJK

viperbjk said:
Sorry ... but I think you are wrong saying that it is any hardware issue or that it won't work. Please see existing threads in Raphael section, it has already been discussed.
As for Diamond !! we are 100% sure that the hardware is fine for all bands (3g and gsm) except WCDMA 800, as the calib data does exist and the hardware itself is capable. All Diamond I have seen so far have an rtr6285 and also the newer radio firmware support all bands except WCDMA 800. If using newer radio doesn't work (quadband enabled), so it is a ROM/SPL issue as it seems or your device needs updated nvitems.
As for Raphael, it is the same, except that this one might have an hardware issue (antenna).
We (me, cmonex and olipro) are working on this issue already. Once we get the diag port running on EU Diamonds, we are sure we can enable it for all bands (except 800 WCDMA).
Cya,
Viper BJK
Click to expand...
Click to collapse
Woooow give me some hope.
But I was 100% convinced that my euro spec Diamond could never join 850/1900 bands.
Only GSM but not 3G at 850.
Thank you very much!

viperbjk said:
As for Raphael, it is the same, except that this one might have an hardware issue (antenna).
We (me, cmonex and olipro) are working on this issue already. Once we get the diag port running on EU Diamonds, we are sure we can enable it for all bands (except 800 WCDMA).
Cya,
Viper BJK
Click to expand...
Click to collapse
WAAAAAA i can haz more g's?!?!?

chipset hardware change
any update on enable all band?

Yes. It can't be enabled, it is a hardware issue.
Problem is that for umts 850 there is no power amplifier built in.
Cya,
Viper BJK

[Q] Change 3G band to European GSM 900/1800

A family member gifted me a Galaxy S4, however it is the SGH-M919. I currently live in Europe and 3G bands in my region are GSM 900/1800. At the moment I can't access 3G and any other type of data for that matter (LTE is not supported here). Is there a way to change T-mobile 950 and 1900 bands to my region ones?
Thanks for taking your time to answer

Sadly not.
Since the radio does not support those frequencies for hsdpa

TheArtiszan said:
Sadly not.
Since the radio does not support those frequencies for hsdpa
Click to expand...
Click to collapse
So there's no way to fix it?

Hello Flex,
I have the same phone "Samsung S4 SGH-M919 - Tmobile" and I live in Hungary, it works fine with me all you have to do is just to switch form WCDMA/GSM to any other option "like GSM only" then back to WCDMA/GSM as a kind of refresh and the 3G will work fine after that, you can find this inside Settings > More Networks > Mobile Networks > Network mode, but unfortunately you have to do this every time you restart your device.
There is also another alternative solution is to reset the Access point names to default, you can find this inside Settings > More Networks > Mobile Networks > Access Point Names.
to be honest I don't know the reason of this error, but try what I described and tell me if it works with you.
Good Luck

Well. I have the exact same phone and have tried several ROMs, either custom or stock and basebands also. Nothing seems to work. The very few users who reported it was working didn't provide much evidence of it. Even Wikipedia says no 3G 900MHz availability for this phone. A simple edit to NV 1877 values won't solve it. I've tried that too.

SGH-T999 Stuck on Edge only

Hello there hope all of you doing well
i had Tmo SGH-T999 S3 which is unlocked but after unlocking its stuck on 2G Network i couldn't use 3g network
i search on google and i found this code :*#197328640#
but i don't know how to use it any way can you help me
wish best times 4 you ^_^

Did you sim-unlock the phone using a code?

I'm also having this issue. I have TMO SGH-T999 S3 sim unlocked before via software (not unlocked via code) and always stays on E (2G). I am thinking that i got messed up after the unlock. My IMEI is still intact btw.

First thing is to double check that your IMEI exactly matches the one on the sticker under the battery. If it checks out, the next best step is to reflash your current or newer stock firmware. (This can be caused by mismatched firmware so by flashing it you will either fix the problem or eliminate it as the cause).
You may also want to check your IMEI against the blacklists online. Especially if you bought it anywhere but a retail store.

Unlocking via code or secret menu should not affect radio bands available in the phone.

WCDMA Band preference
I've checked the WCDMA (3G) band preference available in my T999 S3 and below are the only option available:
The mode preference menu: *#2263#
The information menu: *#197328640#
WCDMA 850
WCDMA 900
WCDMA 1700
WCDMA 1900
WCDMA IMT2000
WCDMA ALL
... and found out my carrier band preference for 3G is 2100. Seems i'm out of luck for 3G data and since this T999 cannot support 4G LTE. I guess i'm stuck on E (2G) data unless i use WiFi.
P.S - Is there a way to add a 1800 or 2100 band preference to WCDMA? :fingers-crossed:

Check the General section in AT&Ts forum. They had something like this if I remember right. They could enable use on a different band, but I don't think it would stick after a reboot. It's been a long time since I looked at it though, so they may have made some more progress on it.

Goodbye 2G (E) data connection
I'm happy to report that my (WCDMA) data speeds is now functional on my SIM network carrier! :good: Loving the speed browsing at last . Although showing as 4G but i know my T999 is not capable of that and not very sure.
Again, thanks DocHoliday777 (I don't know how to link your name) for giving me the idea about the Modem mod. I just followed the guide on the link below and used the NV Data backup from T999L file. So for any users of T999 you can try this mod but please do it at your own risk and don't forget to backup.
I hope this T999L modem mod can be included on the newer root66 baseband/firmware so it can be permanent?
Anyway, just follow the guide on the link below and hit thanks!
http://http://forum.xda-developers.com/showthread.php?t=2344627
P.S - To access the modem setting on my SGH-T999 I've used the code *#0808#. And my final WCDMA setting i chose WCDMA ALL. Goodluck!

SM-T807P with not support to WCDMA

I have a SPRINT SM-T807P pre-owned tablet working 100% OK.
The device IMEI is clean and I'm outside the US.
I could find the 2G/3G/4G technology and bands supported prior to buy the device through eBay.
Then, running stock ROM MM 6.0.1 updated > root > unlock and debranding to clean SPRINT apps and restrictions with others carriers SIMs.
I have 3 SIMs from my 3 local carriers and I know I can't use LTE since the carriers LTE bands are not compatible with the device (Band 2 and Band 4 required by the carriers)
www_gsmarena_com/samsung_galaxy_tab_s_10_5_lte-6235.php
No problem with that, I can use 3G/2G mobile data for my internet surfing and email check tasks.
My problem is that my device is not supporting WCDMA!
When I'm in IOTHiddenMenu > ##DATA# Menu > HDR/1X Selection, I have only these options:
1) Hybrid
2) CDMA Only
3) EVDO Only
4) EHRDP 1x
5) Global
6) LTE + CDMA + EVDO
7) LTE only
As you can see there is nothing related to WCDMA!
Using "Global" is not the trick.
In GCF SETTING when going to
[2]UE Setting & Info
[1]Setting
[1]Protocol
[2]NAS
[1]Network Control
[4]BAND SELECTION
I can see "WCDMA Band Preference" > "WCDMA ALL" option but this setting is not saved.
Only are saved the options related to LTE, CDMA or LTE+CDMA.
Same behavior when going to RADIO SETTINGS > Set preferred network type. GSM/WCDMA options present but are not being saved nor accepted. I can save only options with LTE or CDMA (or both) involved.
RTN RESET and NV REBUILD done without getting WCDMA enabled after the tasks.
Now I'm in the way of discover why all the people with SPRINT SM-T807P can enjoy WCDMA services after unlocking the device and I can't do it as expected.
I'm thinking that is a restriction on the stock ROM.
I have a MSM8974 board with a Snapdragon 800 processor.
Build ID MMB29M.T807PVPU1CPI1
Any help/advice to enable WCDMA on the device will be really appreciated.

Additionally, when I'm in RADIO SETTINGS for some reason I can't select some options.
With a (*) mark are my "selectable" options. The other ones can't be assigned...
WCDMA preferred
GSM only
WCDMA only
GSM auto (PRL)
(*) CDMA auto (PRL)
(*) CDMA only
EvDo only
(*) GSM/CDMA auto (PRL)
(*) LTE/CDMA auto (PRL)
(*) LTE/GSM auto (PRL)
(*) LTE/GSM/CDMA auto (PRL)
(*) LET only
(*) Unknown
All the "selectable" options were tested (selected and restart) with no success...

Maybe I need to enable LTE/HSDPA/GSM required bands through CDMA Tools or it seems to be a bad idea?

Adding additional LTE Bands was not possible with CDMA tools.
The new selection is not being saved.
I'm in the way of flashing the stock SM-T807T (T-Mobile) on my SM-T807P (Sprint) to check the behaviors.
Any advice will be really appreciated...

I could see at the Qualcomm website that the Snapdragon 800 processor supports WCDMA and full LTE bands frecuencies:
Supported Cellular Technologies
LTE FDD
LTE TDD
LTE Broadcast
WCDMA (DC-HSDPA, DC-HSUPA)
TD-SCDMA
CDMA 1x
EV-DO
GSM/EDGE
https://www.qualcomm.com/products/snapdragon/processors/800
I'm in the way (too) of searching for the correct MODEM flash file to get LTE, WCDA and GM/EDGE fully unlocked and working...

It was not possible to flash SM-T807T (T-Mobile) stock ROM from SAMMobile on SM-T807P (Sprint)
There is a Odin error.
I will try by editing NV to get the bands working...

Well, after working with CDMA Tools, NV Manager and editing the build.prop file, now I can see my required LTE, WCDMA and GSM additional bands! No more "Searching network connection" on the top left corner.
But the signal icon on the top right corner is always empty (no signal at all).
I have checked, deleted and reconfigured the APN, with no success.
And still I can't set "GSM auto (PRL)" on the Service Mode as "Preferred Network Type" so I believe I'm missing something else.
I'm really exhausted, I need help to be able to get my Samsung Galaxy Tab S working OK on my local GSM networks.
I will open a new thread offering to pay/donate for the service to have my device working on GSM ...

Samsung s20 enable UMTS 4 question

hi all,
Have a question about unlocking the umts band 4(aws 1700) for a s20 sm-g9810 HK version. Hope someone can help me to sort it out.
Following the guides in this forum, I enabled the band using QPST and QXDM to write NV 1877. The white was successful, and the Samsung Band Selection app shows wcdma IV 1700(it wasn't
there before modifying NV). However, when I select the band or change network mode to 2G/3G, I can't make any call with Freedom Mobile, which is using UMTS 4 for voice.
Does anyone know if the hardware supports this band?
Thanks!