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[Q] Enable 850 Mhz band with any modem version Galaxy S 4g

I have the tmobile samsung galaxy 4g. Unfortunately it doesn´t come with the 850 Mhz band enabled for 3g data. I read in galaxy s post that it is possible to flash the modem to another one who has this band included. Is it possible in the galaxy s 4g?
Thanks.

drojasz said:
I have the tmobile samsung galaxy 4g. Unfortunately it doesn´t come with the 850 Mhz band enabled for 3g data. I read in galaxy s post that it is possible to flash the modem to another one who has this band included. Is it possible in the galaxy s 4g?
Thanks.
Click to expand...
Click to collapse
if that is in fact possible, which I've heard otherwise, that'd be splendid.
Sent from my SGH-T959V using XDA Premium App

Modem 850 Mhz
Really exist any fhash for activate 850 Mhz for samsung Galaxy S 4G?????????.
Where are there link for download???????!!!!!!!!

Are you positive it cannot connect to 3g? Unless the phone is lying to me I've seen it connected to UTMS networks under phone status and even show 3g for the data connection in the status bar.

Yep, shows umts but downloads @4G speeds.

Somairotevoli said:
Yep, shows umts but downloads @4G speeds.
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Click to collapse
17?! holy crap!

danstheman7 said:
17?! holy crap!
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Click to collapse
That's inside I get 20+ outside.
Sent from my SGH-T959V using Tapatalk

850MHz UMTS on Vibrant 4G
I have both the Vibrant 4G and the older Vibrant from T-Mobile.
Using the instructions found here: androidforums.com/samsung-galaxy-s/258859-how-enable-850mhz-3g-network-frequency-your-samsung-i9000-galaxy-s.html[/url]
I see that I can enable 850MHz on the older Vibrant but I don't see the 850MHz option on the Vibrant 4G. I have not yet tested the Vibrant to see if I get better AT&T data coverage (ie: 850MHz when 1900MHz is not available.)

Somairotevoli said:
That's inside I get 20+ outside.
Sent from my SGH-T959V using Tapatalk
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Click to collapse
Hah, you live in a 42mbps theoretical area dont you?

drojasz said:
I have the tmobile samsung galaxy 4g. Unfortunately it doesn´t come with the 850 Mhz band enabled for 3g data. I read in galaxy s post that it is possible to flash the modem to another one who has this band included. Is it possible in the galaxy s 4g?
Thanks.
Click to expand...
Click to collapse
I believe this is true for the Galaxy S i9000 which has support for 3G network over the 850mz band. Our phone, the Galaxy S 4g does not.
It is possible to flash a modem for 3G @ 850mz band for i9000, but not for the sgs4g.
The main reason being that the i9000 is an international phone so it has to support a lot of carriers and different bands/networks around the globe. But the SGS4G was made for T-Mobile's network, so the bands that it supports are limited to that carrier.
---------- Post added at 08:22 AM ---------- Previous post was at 08:19 AM ----------
Somairotevoli said:
Yep, shows umts but downloads @4G speeds.
Click to expand...
Click to collapse
what font is that *.*

Sorry for revive this post , just to clarify... If enable the UTMS1900Mhz band I'll be able to usa 4G with a company that provide it via HSPA+ on this band?
thanks in advance

anyone here???

[Guide]LTE band 7 2600mhz Working Finally (also bands 3/20)

OK guys I've finally unlock the LTE Band 7, here are the steps (thanks @regspy, @BobbySteel)
1. I have Stock ROM (4.4.2) and last firmware installed and root.
2. Download the files you will need HERE install QPST and QXDM, u can get the drivers intalling HTC Sync Manager from HTC webpage.
3. Dowload Terminal Emulator from the market.
4. Open the terminal emulator and put the code on @regspy guide HERE
5. Put your phone in CDMA mode.
6. Open your phone dialer and type ##3424# (an image should be appear on your phone screen).
7. Connect the phone to your PC.
8. Go to start, all programs, QSPST, open QPST configuration (as admin).
9. On QPST configuration go to Ports and click on add new port.
10. Open device manager, go to PORTS and check what port are using your phone.
11. On QPST configuration fill the PORT and PORT LABEL, PORT LABEL should be HTC Diagnostic Device or something like that, now click OK.
12. Now open QXDM.exe (as admin).
13. Go to options, communications.
14. On TARGET PORT select your HTC phone and click ok.
15. On VIEW select NV Bowser.
16. Find +6828 click read button and backup the stock value on a paper, txt file, etc just in case.
17. Repace Both values with 524356 and click WRITE.
18. Do the same with +6829, use the same value.
19. Reboot and enjoy!!
20. Put the phone in Global Mode.
Stock GSM Values (thanks to @BobbySteel):
441: 0xfff
946: 0xbfff
1877: 562950035735431
2954: 4294967295
Regards!

SORRY FOR DOUBLE POST

xrodx said:
OK guys I've finally unlock the LTE Band 7, here are the steps (thanks @regspy, @BobbySteel)
1. I have Stock ROM (4.4.2) and last firmware installed.
2. Follow the @regspy guide but dont change any NV Value, http://forum.xda-developers.com/showpost.php?p=55673438&postcount=475
3. Only change the LTE NV Values (the values will unlock 800/1800/2600 (bands 20/3/7):
+6828: 524356
+6829: 524356
4. Reboot and enjoy!!
Stock Values (thanks to @BobbySteel):
441: 0xfff
946: 0xbfff
1877: 562950035735431
2954: 4294967295
Regards!
Click to expand...
Click to collapse
Gonna try this tonight... Are you on Verizon? I ask cuz I have a vzw m8 on T-Mobile, and hope this helps abit. I'm still trying to unlock aws band to be more compatible with tmo
Sent from my HTC6525LVW using XDA Free mobile app

rpalmerin said:
Gonna try this tonight... Are you on Verizon? I ask cuz I have a vzw m8 on T-Mobile, and hope this helps abit. I'm still trying to unlock aws band to be more compatible with tmo
Sent from my HTC6525LVW using XDA Free mobile app
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Click to collapse
No, im from Chile and bought a VZW one m8 from ebay, here we use lte band 7. As advice if this NV value dont work try to get 6828 and 6829 NV value from a TMO One M8.

xrodx said:
No, im from Chile and bought a VZW one m8 from ebay, here we use lte band 7. As advice if this NV value dont work try to get 6828 and 6829 NV value from a TMO One M8.
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Click to collapse
That's a good idea. Haven't thought of asking anyone about that yet thanks
Sent from my HTC One_M8 using XDA Free mobile app

For us?
hi guys,is it important for people who has Verizon m8 in europe?(we are still using 3g/h) ?

cincon said:
hi guys,is it important for people who has Verizon m8 in europe?(we are still using 3g/h) ?
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Click to collapse
Same here. I use it in Bulgaria and LTE is very limited, also AFAIK LTE shortens the battery life..
If you don't have coverage and you have LTE it will keep scanning -> battery drain

cincon said:
hi guys,is it important for people who has Verizon m8 in europe?(we are still using 3g/h) ?
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Click to collapse
Its very possible in fact I got the NV value from a Europe htc one m7.
Regards

so
what should i do for European people who have 3g/h neywork?
pls help me =)

This works in Europe too

Working in Uk?
The strangest thing... I enabled said bands while I was visiting Pakistan and it IMMEDIATELY worked (provider there uses band 3, 1800 MHz) It worked just fine in Dubai as well, also on band 3 and on my EE sim on roaming on etisalat. But then I get back to Uk and still no LTE. Just HSPA!
I am on EE network which I am sure uses band 3 as well. I know there is an LTE signal in my area because when I pop my sim in my wife's iPhone 5 (not 5s) it picks LTE immediately (which I believe is only capable of band 3 in UK)
Also, I am not getting LTE on my Verizon anywhere at all.
So I know band 3 was unlocked because it worked great in Pakistan and Dubai but its not working here. Anyone have any ideas why this is?
@BobbySteel: does yours work in Uk?

So if I am American, do I even need or want to try this?

BygSii said:
So if I am American, do I even need or want to try this?
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Click to collapse
If you're on Verizon; no.

What about me ? I have AT&T and current use only HSPA+
do you have an idea if this band that you unlocked is also available on ATT?
Great job

What are the default LTE bands the verizon m8 comes with?
Also is it possible to unlock AWS HSPA+ bands?

I have the exact same problem. I can't get any UK sim cards to reliably work in the UK but it works well in every other EU country I'm in. I've tried both Voda and O2 UK. Strangely though there are a few locations (near Victoria for example) where 4g *does* work. But it's geographically small and other areas my old sgs4 got 4g don't work on this handset w the same sim. Bizarre.

I was hoping this would be a more popular thread but guess the phone is getting old now...

hyperfire21 said:
What are the default LTE bands the verizon m8 comes with?
Also is it possible to unlock AWS HSPA+ bands?
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Click to collapse
AFAIK, HTC One M8 has LTE bands 4/13 unlocked. And it´s global on 3G.
Edit: Bands 4/13 only(NV 6828 = 4104, same NV 6829)

rpalmerin said:
Gonna try this tonight... Are you on Verizon? I ask cuz I have a vzw m8 on T-Mobile, and hope this helps abit. I'm still trying to unlock aws band to be more compatible with tmo
Sent from my HTC6525LVW using XDA Free mobile app
Click to expand...
Click to collapse
TMO uses LTE bands 2-4-12 in the continental US and Verizon 4-13. Therefore you should unlock bands 2-12 to use both carriers.
So, NV6828 and NV6829 original values(4104) must be replaced with 6154. Hope this helps.
---------- Post added at 03:53 PM ---------- Previous post was at 03:43 PM ----------
BobbySteel said:
I have the exact same problem. I can't get any UK sim cards to reliably work in the UK but it works well in every other EU country I'm in. I've tried both Voda and O2 UK. Strangely though there are a few locations (near Victoria for example) where 4g *does* work. But it's geographically small and other areas my old sgs4 got 4g don't work on this handset w the same sim. Bizarre.
Click to expand...
Click to collapse
Both Vodafone and O2 use LTE band 20 in the UK, are you sure that band is enabled?

rickylambert said:
TMO uses LTE bands 2-4-12 in the continental US and Verizon 4-13. Therefore you should unlock bands 2-12 to use both carriers.
So, NV6828 and NV6829 original values(4104) must be replaced with 6154. Hope this helps.
---------- Post added at 03:53 PM ---------- Previous post was at 03:43 PM ----------
Both Vodafone and O2 use LTE band 20 in the UK, are you sure that band is enabled?
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Click to collapse
Thanks, yeah I've been getting lte since September when I switched over to T-Mobile, so that's not really the issue even though I thought that was it,... I think my issue it's cc with the aws band that T-Mobile runs on that I don't get that's the culprit... Any ideas on how to get that going? Cuz I get wcdma lte and basic 2g gms, but when it switches from tower to tower, it's what in having issues with
Sent from my HTC One_M8 using XDA Free mobile app

Help!. How can i get lte band 4 in note 5 sprint?

Hi, i have a Note 5 Sprint working in Mexico, here we have Band4 1700/2100 and if we look specs for snote 5 sprint this support band 4 1700/2100, someone know why i cant get LTE? only 3g..
can someone help me?:crying:

I am also looking for some pointers whether is it possible to unlock additional LTE Bands so that it can be used anywhere. Has anyone been able to do it?

memokalel said:
Hi, i have a Note 5 Sprint working in Mexico, here we have Band4 1700/2100 and if we look specs for snote 5 sprint this support band 4 1700/2100, someone know why i cant get LTE? only 3g..
can someone help me?:crying:
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Click to collapse
Possibly enable LTE Roaming if you have your PRL? It's in the ##DATA# menu.
Sent from my SM-N920P using XDA Free mobile app

memokalel said:
Hi, i have a Note 5 Sprint working in Mexico, here we have Band4 1700/2100 and if we look specs for snote 5 sprint this support band 4 1700/2100, someone know why i cant get LTE? only 3g..
can someone help me?:crying:
Click to expand...
Click to collapse
set priority #1 for band 4 in LTE settings inside the DATA Menu, you need MSL code to be able to do it

Is there a way to enable UMTS Band 900Mhz on n920T?

I believe my operator uses 900MHz, for both 2g and 3g, however, my phone is not conencting to 3G.
I have been reading the specs which says the n920t has no 900Mhz 3g band available.
my wife phone, n920V is connecting well to 3g.
is there any way to enable the 900Band to the n920t ?
any trick?

900 Mhz band is 2G only on N920T. It should be a different radio chip so it's phisically missing.
N920V is missing a good number of LTE bands instead. Try to get a N920C if you can, it has every band (I have N920T too and here we use a lot of bands but in rural settings I'm left with no phone at all as I have no 900 mhz on my phone...).

Are you sure about this? I have seen on some phones, bands can be activated by using specially crafted QCN files.

i cant find a site to check that, i mean the n920p (sprint) has Exynos SOC 7420 too and it has 900mhz so im kinda confisued, if i flash a global stock ROM into my n920t would it pick 900mhz ? or its just brick ? even if i can remove all the bloatware it will worth the try

AndroidXL said:
i cant find a site to check that, i mean the n920p (sprint) has Exynos SOC 7420 too and it has 900mhz so im kinda confisued, if i flash a global stock ROM into my n920t would it pick 900mhz ? or its just brick ? even if i can remove all the bloatware it will worth the try
Click to expand...
Click to collapse
Just be sure to have the stock firmware handy before starting to play the flashing game...
Enviado desde mi SM-G960U mediante Tapatalk

i do, but i havent flash it yet cause im scared, i dont have a clue what happens when u flash a global rom into a ex-company phone

Normally phone would not allow flashing if it dislike the new flavour.
Anyways you can wait for others to comment, out find some related info in the original Android development threads
Enviado desde mi SM-G960U mediante Tapatalk

i see, well i cant get a new phone, so i will wait for LTE here which is soon according with my cell company (Cubacel) they are gonna use 1800 lte and 700 lte on rural zones and this phone has them.

AndroidXL said:
i see, well i cant get a new phone, so i will wait for LTE here which is soon according with my cell company (Cubacel) they are gonna use 1800 lte and 700 lte on rural zones and this phone has them.
Click to expand...
Click to collapse
Are you sure it is 1800?
Did you send sms LTE to 2266?
700mhz band will not come until analog tvis shutdown
Enviado desde mi SM-G960U mediante Tapatalk

yurais said:
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It OK to me, I don't live in rural zones, and analog TV shutting down its near

WCDMA Band 8 support in my phone

Hello,
If my phone supports 2G's GSM 900 isn't it supposed to support also 3G's WCDMA 900 ?

yoelian said:
Hello,
If my phone supports 2G's GSM 900 isn't it supposed to support also 3G's WCDMA 900 ?
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Maybe, maybe not. You didn't say what device you have or what network your device is activated on, that can make a difference.
Sent from my LGL84VL using Tapatalk

Droidriven said:
Maybe, maybe not. You didn't say what device you have or what network your device is activated on, that can make a difference.
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You're right, it's a LG (AT&T) Phoenix 2 K371 and from what i've read at Qualcomm's site i think i understood that it's modem supports it. I mean at least the antenna for the 900MHz is the same for GSM and WCDMA?
Thanks