Change LTE bands on unlocked US S9+ - Samsung Galaxy S9+ Questions & Answers

Is it possible to manually change the LTE band priority on an unlocked US S9+. I just activated mine on the Sprint network today, and data transfer speeds are slower than on my S5. I've tried resetting the network configuration which at least improved the upload speed from zero.

stevedensmore said:
Is it possible to manually change the LTE band priority on an unlocked US S9+. I just activated mine on the Sprint network today, and data transfer speeds are slower than on my S5. I've tried resetting the network configuration which at least improved the upload speed from zero.
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If your carrier is working with multiple LTE frequencies your phone will automatically use the one that has the strongest signal in your location.
If it's a LTE-A network it will connect in all compatible frequencies and use channel aggregation to boost the connection bandwidth.

stevedensmore said:
Is it possible to manually change the LTE band priority on an unlocked US S9+. I just activated mine on the Sprint network today, and data transfer speeds are slower than on my S5. I've tried resetting the network configuration which at least improved the upload speed from zero.
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You can change using shortcut master lite from playstore
find hidden network settings from that app

Related

LS990 LTE band 3

is there any options to unlock lte band 3 on ls990. i saw and tried many other roms but no one has this feature.
is that depends on rom? or kernel or modem?
Tried woth shortcut master but doesnot work
fromgeorgia said:
is there any options to unlock lte band 3 on ls990. i saw and tried many other roms but no one has this feature.
is that depends on rom? or kernel or modem?
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looking for the same, ho to add more frequencies to this phone
Gustavo linux said:
looking for the same, ho to add more frequencies to this phone
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few days ago i flashed Primegsm rom. it's based on D855 witch have all frequencies unlocked.
it gets E G H signals but still no LTE
it seems that not much people are interested in it and developers does not pay attention to it
Hello has anyone looked into this issue?
scorpio76r said:
Hello has anyone looked into this issue?
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i even dont know if its possible or not
Unable to Enable CDMA on lg g3 ls990
Sir,
I am from Pakistan. i have sprint lg g3 ls990 cell phone. I am using 3g cellular network. But when i enable data it always shows Edge not 3g. I switched network mode to cdma/ wcdma from settings menu but nothing. I flash several roms but no result.
Now i am on cloudy g3 2.5. But there is no change in my data service. I am still on edge data mode.
Any one help me what can i do to switch to cdma/ 3g?????
Thanks and waiting some support from u people.
Regards
Abbas
Abbas130 said:
Sir,
I am from Pakistan. i have sprint lg g3 ls990 cell phone. I am using 3g cellular network. But when i enable data it always shows Edge not 3g. I switched network mode to cdma/ wcdma from settings menu but nothing. I flash several roms but no result.
Now i am on cloudy g3 2.5. But there is no change in my data service. I am still on edge data mode.
Any one help me what can i do to switch to cdma/ 3g?????
Thanks and waiting some support from u people.
Regards
Abbas
Click to expand...
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are you sure that is gets only edge? Sprint rom only have GSM icon regardless what it receives (edge,3g or hsdpa).
and you may also check if 3g frequencies match
How can i check? Please tell me the solution...!!!!!
fromgeorgia said:
i even dont know if its possible or not
Click to expand...
Click to collapse
fromgeorgia said:
is there any options to unlock lte band 3 on ls990. i saw and tried many other roms but no one has this feature.
is that depends on rom? or kernel or modem?
Click to expand...
Click to collapse
Try going to dialer and entering *#*#4336#*#* top right click the three dot menu and pick select radio band.
Abbas130 said:
Sir,
I am from Pakistan. i have sprint lg g3 ls990 cell phone. I am using 3g cellular network. But when i enable data it always shows Edge not 3g. I switched network mode to cdma/ wcdma from settings menu but nothing. I flash several roms but no result.
Now i am on cloudy g3 2.5. But there is no change in my data service. I am still on edge data mode.
Any one help me what can i do to switch to cdma/ 3g?????
Thanks and waiting some support from u people.
Regards
Abbas
Click to expand...
Click to collapse
Try GSM PATCH FOR CDMA ROMS and u r good to go
Abbas130 said:
Sir,
I am from Pakistan. i have sprint lg g3 ls990 cell phone. I am using 3g cellular network. But when i enable data it always shows Edge not 3g. I switched network mode to cdma/ wcdma from settings menu but nothing. I flash several roms but no result.
Now i am on cloudy g3 2.5. But there is no change in my data service. I am still on edge data mode.
Any one help me what can i do to switch to cdma/ 3g?????
Thanks and waiting some support from u people.
Regards
Abbas
Click to expand...
Click to collapse
Try Gsm patch for cdma phones.. I also hve sprint lgg3 in pakistan and this patch helps me a lot.. Just google for it
Anyone found the solution for unlocking LTE bands? It's possible on Verizon by flashing correct modem. We need to find the correct modem for LS990
same
it would be great of anyone can share a solution of adding More LTE bands to the LS990
Tried *#*#4336#*#* in my ls990 with resurection mix 6.0.1 software but no success.
fromgeorgia said:
is there any options to unlock lte band 3 on ls990. i saw and tried many other roms but no one has this feature.
is that depends on rom? or kernel or modem?
Click to expand...
Click to collapse
Here is some information about the ls990 data network
TECHNOLOGIES USED
GSM / CDMA / HSPA / EVDO / LTE
TECHNOLOGIES USED DEFINED
GSM
Global system for mobile (GSM) communication is a digital mobile telephony system that is widely used in Europe and other parts of the world. GSMuses a variation of time division multiple access (TDMA)
CDMA
Code division multiple access (CDMA) is a channel access used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single access channel.
HSPA
High speed packet access (HSPA) is a third generation (3G) mobile broadband communications technology. The term "HSPA" actually refers to two specific protocols used in tandem, high speed downlink packet access (HSDPA) and high speed uplink packet access (HSUPA).
EVDO
1xEV-DO is a 3G standard for CDMA-based networks, as a 3G technology it focuses on bringing high-speed data to CDMA. EVDO provides data rates over ten times faster than 1xRTT the previous data technology for CDMA networks.
LTE
Long term evolution (LTE) is a 4G wireless broadband technology developed by the third generation partnership project (3gpp) an industry trade group.
Bands used by the ls990
2G Bands
GSM 850 / 900 / 1800 / 1900
3G Bands
HSDPA 850 / 1900 / 2100
4G Bands
LTE Bands 25 (1900) / 26 (850) / 41 (2500)
DATA TRANSMISSION SPEED
HSPA, LTE Cat4
150 / 50 Mbps
I don't know what protocol Band-3 is set up for. So I cannot answer your question directly. What I can tell you is that the coding you are looking for should be part of your CDMA. The CDMA gets the two signals (your phone and the band) to share a frequency. I don't know how this is achieved. If you know how to access the CDMA programming and know the precise frequency your desired band is broadcasting at you very well, at the very least change an existing port to a different frequency.
I don't know if you would be able to just add in coding and expect it to work. That's because I don't actually know if the phones use multiple ports (one for each frequency) or if it cycles through the programmed frequency using one piece of hardware.
I hope at least some of this information is able to help you out. If you do end up attempting to rewrite a CDMA, let me know how it goes. Honestly if it works, I'm going to be asking you for information.
---------- Post added at 04:03 PM ---------- Previous post was at 03:52 PM ----------
Abbas130 said:
Sir,
I am from Pakistan. i have sprint lg g3 ls990 cell phone. I am using 3g cellular network. But when i enable data it always shows Edge not 3g. I switched network mode to cdma/ wcdma from settings menu but nothing. I flash several roms but no result.
Now i am on cloudy g3 2.5. But there is no change in my data service. I am still on edge data mode.
Any one help me what can i do to switch to cdma/ 3g?????
Thanks and waiting some support from u people.
Regards
Abbas
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Click to collapse
I'm just a regular guy but try looking through all of the forums and threads. Just search CDMA (make sure you select find anywhere in text if you use a web browser. Then you can use your browser's tools to "find in page" again search CDMA. This will highlight every time "CDMA" appears on the page. Then you can scroll through them by pressing on the arrows on the find in page tool. Of you can't find anything in any of the posts on this site, there could be the chance that the developers are not interested in altering their CDMAs. Keep in mind it is common advice to never alter your "daily driver" the cell you rely on.
Other than that the only I formation I know about it is what I was told by a guy who flashes phones for a prepaid provider where I live. He told me that not every phone is able to hook up to the bands of the other carriers. That's why he had a sign that stated data service is not guaranteed on all phones.

G5 cannot connect to 4G LTE?

I bought a Sprint G5 (LS992) and am using it in Canada, however I have never been able to connect to 4G LTE even though I am sure it works on my carrier's LTE network (Public Mobile, which uses Telus's network). I could still call, text and use data on 3G HSPA+ but not LTE.
I checked the Network type and strength under Mobile networks and only see 3G -65dBm.
In 4G settings under Mobile networks there are two options, one is the Network operator which I could not press into it and the other one being IP address which shows me "0.0.0.0"
Tried to enable LTE by switching the network mode to LTE/CDMA only but not even able to connect to the network (no calls no text nothing)
I am pretty sure G5 is capable of using LTE but just don't know why I am not the one using it.
Thanks for any help or suggestions!

band selection and signal issues???

Got a sprint varient. After now 2 days of searches and reading trial and error.
My g5 sprint gsm unlocked. No matter how i select radios gsm gsm/cdma lte auto everything.
I'm picking up band 5 lte tower. I verified these readings with a att s6 edge.
randomly hpsa and very rarely a gsm network but g5 does connect to all same bands and netwroks as s6 side by side in lte discovery.
On all my att phones on lte discovery primary is lte band 2. G5 wants to default to band 5.
It did connect to band 2 for a few min with great signal might i add. Secondary connection is live on in lte discovery on s6 edge with gsm and network info listed.
Now again my g5 is on 1st lte band 5 most of the time and the 2nd connection is rarely picking up but has switched a few times between hspa and gsm just like att phones info in discovery. but usally sitting here with gsm and a n/s
As my g2 g3 g4 all were sprint on att no problem I didnt figure the g5 would be any diffrent
This seems like a connection and band priority issue not a compatibility issue.
Am i missing something? i cannot find band priority in any hidden menus. Or did sprint and lg take away some of the versatile sprint radios functionality?
sorry for being long winded
Its just weird. It will make calls,text.mms,internet all on 3g 4g and lte. But signal keeps dropping. While it continueously switches from lte to 3g band 2 and 5 Does not drop calls. Sometimes i have to make a call a time or 2 to get connected to the network. Texts seem to be coming through on time.
thanks in advance guys
from what i need i gotta either set band priority or find setting for lte/gsm/umts which i cant find
i am also getting too low reception

Unlock true 5G speeds

Iv just came across this in the developer settings
By default network it's set as NSA mode non stand alone, I have switched to SA + NSA.
I do not no if this will have an effect on battery or not.
(I think it might)
NSA relies on the 4G network facilities to provide more speed and higher data bandwidth. A 5G-enabled smartphone will connect to 5G or 4G network depending on conditions.
( standalone ) SA is the true 5G network, where the 5G network has its dedicated 5G facilities to provide enormous speed improvements and minimal network latency (delay). The 5G SA network is independent of the 4G network.
Will obviously only work if your in a 5G area, but I think I see a difference in browser speeds and the full web pages loads up much faster.
Test for yourself.
Switched both options and tried network speed test got no difference. Dubai 5G network
anasmhds said:
Switched both options and tried network speed test got no difference. Dubai 5G network
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Click to collapse
Maybe I'm just seeing things lol, it's ment to take full advantage of the 5g speeds, maybe it doesn't work yet I don't know

Zenfone 7 Pro CellBand USA Compatibility

ATT will ONLY work upto 3g. You will see an H on top the signal bar which indicates a Enhanced 3g speed also know as HSPA speed connection. I have tried 2 new sim cards. I have tried several APN's I have tried all updates and a reset. No 4G and no 5G on ATT. Unless someone can tell me something new, this phone will not FULLY work on ATT. Text works. Calls work. Internet is sort of hit and miss with decent signal but again rather slow.
T Mobile will ONLY work upto 4g. No Volte although it seems to have the capability of Volte it cant not work with Tmobile Volte because it seems the cell bands are not compatible. Text work. Internet works rather fast, Good solid signal however no 5G and no Volte due to incompatible cell bands.
I did research on this subject and found that the ATT cell bands for everything including 5G do seem to be compatible with the 7 pro but again, it does not FULLY work oddly
I also did research on Tmobile cell bands and the bands for 5G are not even close to being compatible. Volte is also non compatible. 4g is compatible and works..
That is disappointing to hear as I have been looking into this phone and assumed it would have full usage on ATT.
round2 said:
ATT will ONLY work upto 3g. You will see an H on top the signal bar which indicates a Enhanced 3g speed also know as HSPA speed connection. I have tried 2 new sim cards. I have tried several APN's I have tried all updates and a reset. No 4G and no 5G on ATT. Unless someone can tell me something new, this phone will not FULLY work on ATT. Text works. Calls work. Internet is sort of hit and miss with decent signal but again rather slow.
T Mobile will ONLY work upto 4g. No Volte although it seems to have the capability of Volte it cant not work with Tmobile Volte because it seems the cell bands are not compatible. Text work. Internet works rather fast, Good solid signal however no 5G and no Volte due to incompatible cell bands.
I did research on this subject and found that the ATT cell bands for everything including 5G do seem to be compatible with the 7 pro but again, it does not FULLY work oddly
I also did research on Tmobile cell bands and the bands for 5G are not even close to being compatible. Volte is also non compatible. 4g is compatible and works..
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I got volte to work on tmobile for anyone who is reading this later. Fairly easy to do after the pain of figuring it out was over. My data also fluctuates between 4G and LTE (4G+) as well.
juanappleseed said:
I got volte to work on tmobile for anyone who is reading this later. Fairly easy to do after the pain of figuring it out was over. My data also fluctuates between 4G and LTE (4G+) as well.
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How did you get T-Mobile to activate the service on your phone? They just tell me it's not compatible.
am1128 said:
How did you get T-Mobile to activate the service on your phone? They just tell me it's not compatible.
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Click to collapse
[Guide] Easy method to Enable Volte (with root) on Tmobile and maybe other networks on Android 11 and maybe 10
So first you have to root. I used twrp and magisk. There are guides on how to do that you can find by searching around. Then once you do that, follow these directions, What I did was manually entered all of these setprop commands below, on the...
forum.xda-developers.com
Sorry, thought you were asking about setting up Volte on the Zenfone 7, so I pasted that link.
To use this phone in TMobile, no special activation is needed. Just a tmobile sim that can handle voice / data.

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