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Changing Radio Frequencies

I know I've asked this before but i've never got a solid answer. Can I change the Radio frequency or add it to what the phone is capable of doing so I can hook onto Telus's new HSPA network and not worry about them catching on to what i'm doing?

No, you can only use a phone on frequencies which it has hardware for. If it is not equipped for the HSPA radio frequencies...... you cannot use it.

antjc80 said:
No, you can only use a phone on frequencies which it has hardware for. If it is not equipped for the HSPA radio frequencies...... you cannot use it.
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Then explain to me this. The frequencies this phone is capable of doing according to the telus website are:
3G EVDO Rev A (800/1900 MHz)
UMTS/HSPA (2100 MHz)
GSM/ EDGE (850/900/1800/1900 MHz)
This means my phone is capable of doing it. That means the frequency control is completely software. That being said I should be able to change it so the frequency can include the 2100 MHz as well. The only reason my phone doesn't right now is cause it's about 6 months older than the hspa network and on the CDMA system.
But if it is all software controlled I should be able to do both. Is my logic wrong on this??

Is this against the rules or something is that why people won't talk about it? Cause it's can't be impossible. If no one wants to talk about it, PM or point me in the right direction so I can know where to start looking.

The HSPA network is gsm not cdma as far as I know. So that means you would have to use a telus sim card to get that network.

slight22 said:
Is this against the rules or something is that why people won't talk about it? Cause it's can't be impossible. If no one wants to talk about it, PM or point me in the right direction so I can know where to start looking.
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If you got any info on that I would really appreciate bought mine like 2 month before HSPA launch

according to telus's website they dont support 3G on the TP2, so if its blocked on their end there isnt much you can do on yours

defaultdotxbe said:
according to telus's website they dont support 3G on the TP2, so if its blocked on their end there isnt much you can do on yours
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I'm not 100% sure if thats true. But I'd still like to try and see if it's possible. If not least I tried. If it works...

slight22 said:
I'm not 100% sure if thats true. But I'd still like to try and see if it's possible. If not least I tried. If it works...
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well either way youd need a sim card, and youll probably have to get that from telus, so call them up and ask

Exactly what I said. You need a correctly programmed Telus sim card since their 3g network is gsm

Has anybody tried to change LTE bands?

hi there, i was wondering, since this phone has MSM8960 which is LTE-capable, and is in fact an LTE phone save for the fact that it is locked to 1900mhz, if it would be possible to "unlock" the radio to be able to use EU/World LTE frequencies.
now, i know that the antenna inside is most likely tuned to 1900mhz so the reception would not be optimal, but still i'm curious cause i found out that there is a tool called QPST service programing from qualcomm that seems to be able to change the radio settings
example link -> http://galaxys4root.com/galaxy-s4-t...aws-bands-on-att-galaxy-s4-sgh-i337sgh-i337m/
so yeah, has anybody tried yet?

Braccoz said:
hi there, i was wondering, since this phone has MSM8960 which is LTE-capable, and is in fact an LTE phone save for the fact that it is locked to 1900mhz, if it would be possible to "unlock" the radio to be able to use EU/World LTE frequencies.
now, i know that the antenna inside is most likely tuned to 1900mhz so the reception would not be optimal, but still i'm curious cause i found out that there is a tool called QPST service programing from qualcomm that seems to be able to change the radio settings
example link -> http://galaxys4root.com/galaxy-s4-t...aws-bands-on-att-galaxy-s4-sgh-i337sgh-i337m/
so yeah, has anybody tried yet?
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I haven't such QPST knowledge, but I believe that QPST can enable the missing bands only if the are listed by the baseband, and then purposely disabled by Motorola when it sells the same phone in different areas.
I'm afraid it's not our case, given the phone is meant for a single market.
I believe that the antennas and filters shouldn't be a big problem, the problem is to have an hacked baseband, which is a task that very few people can do.
That said keep what I wrote with a grain of salt, and see if someone else has better ideas.

The Solutor said:
I haven't such QPST knowledge, but I believe that QPST can enable the missing bands only if the are listed by the baseband, and then purposely disabled by Motorola when it sells the same phone in different areas.
I'm afraid it's not our case, given the phone is meant for a single market.
I believe that the antennas and filters shouldn't be a big problem, the problem is to have an hacked baseband, which is a task that very few people can do.
That said keep what I wrote with a grain of salt, and see if someone else has better ideas.
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nah, it should be just a matter of chaning the right NV settings to the appropriate values. that's the hard part basically, cause there are a ton and it's not immediate to locate them

i mean that biggest problem is antena switch

CornholioGSM said:
i mean that biggest problem is antena switch
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Still a guess, but I blieve that hardly the switch would be a problem, if properly driven.
Btw a definite answer to this question should come identifying the switch IC and checking its datasheet.
Do you know what IC is doing that function in our Phone ?

The Solutor said:
Still a guess, but I blieve that hardly the switch would be a problem, if properly driven.
Btw a definite answer to this question should come identifying the switch IC and checking its datasheet.
Do you know what IC is doing that function in our Phone ?
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if i dont forgot i can check it tomorrow

this thread is very actual in our time. I would also like to check out LTE for other bands in Verizon phones.
the problem is that topic starter gives link to activate AWS band, it's not LTE, it's WCDMA 1700MHz

olegfusion said:
this thread is very actual in our time. I would also like to check out LTE for other bands in Verizon phones.
the problem is that topic starter gives link to activate AWS band, it's not LTE, it's WCDMA 1700MHz
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It was just an example, I believe.
And BTW would be nice to have the UMTS900 too.
In Italy some small areas are already covered, and starting from January/2014 wil be possible for the Operators to use it nationwide.
I tested it already on during the last summer vacations and is just awesome.
Better coverage than GSM900. with the speed of 3G.

Take a look at page 3 of Atrix HD teardown:
http://www.techinsights.com/uploade...2013/techinsights-motorola-atrix-hd-mb886.pdf
There are not only antenna switches at play, but also band specific power amplifiers.
Besides the hardware parts, I guess that our BP firmware will also be one of the show stoppers for achieving LTE e.g. at 800Mhz on Q.
[Atrix HD is very similar device (we share the same kernel) and we are able to use also its BP firmware to some extent (so the BP signature seems to be the same as on Q).]

olegfusion said:
the problem is that topic starter gives link to activate AWS band, it's not LTE, it's WCDMA 1700MHz
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it was just an example so show that it is actually possible to unlock frequencies the phone was not meant to work with

kabaldan said:
Take a look at page 3 of Atrix HD teardown:
http://www.techinsights.com/uploade...2013/techinsights-motorola-atrix-hd-mb886.pdf
There are not only antenna switches at play, but also band specific power amplifiers.
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Nice find, thanks.
Interestingly enough looks like the Atrix HD doesn't have any ACPM-5005, which is present (for sure) on the Photon Q, (is a band 5 850MHz power amplifier), while the Atrix HD is stated to support that band.
Too bad I cant read the full list of PQ ICs, some of them are unreadable, on the broken logic board I have handy.
For sure there are two ACPM-5002 (band 2/1900Mhz) power amplifiers, and the ACPM-7051, quad band GSM and band 1 & 5 (2100/850) LTE/UMTS/LTE PA
At least looks like the signals are routed differently between the two phones

problems with 4G OPO and Three UK

Ho peeps,
just a quick question. I just moved to 4G but I'm experiencing some funny issues.
On my OPO under "Mobile network settings", I changed Preferred network type from 3G to LTE (recommended) and I got 4G. But, occasionally, all of a sudden I can't make or receive phone calls anymore, even if there is good reception signal. If I change the setting back to 3G, then everything works again. So, I checked the frequencies just in case and the OPO, has we know, has LTE: Bands: 1/3/4/7/17/38/40 and Three UK (my provider) for 4G has 800 MHz (0.8 GHz) and 1800 MHz (1.8 GHz). Granted that I don't know much about frequencies, bands, MHz etc, could anybody confirm that the frequencies that the opo has are fine with the ones that Three has? If that's the case, why the opo occasionally plays up when LTE is selected?
cheers

duratto said:
Ho peeps,
just a quick question. I just moved to 4G but I'm experiencing some funny issues.
On my OPO under "Mobile network settings", I changed Preferred network type from 3G to LTE (recommended) and I got 4G. But, occasionally, all of a sudden I can't make or receive phone calls anymore, even if there is good reception signal. If I change the setting back to 3G, then everything works again. So, I checked the frequencies just in case and the OPO, has we know, has LTE: Bands: 1/3/4/7/17/38/40 and Three UK (my provider) for 4G has 800 MHz (0.8 GHz) and 1800 MHz (1.8 GHz). Granted that I don't know much about frequencies, bands, MHz etc, could anybody confirm that the frequencies that the opo has are fine with the ones that Three has? If that's the case, why the opo occasionally plays up when LTE is selected?
cheers
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Unless this has changed recently Three uses 2 bands for LTE(4G). One is Band 3 which the OPO supports which they use it big cities and towns and the other is Band 20 which they use in rural areas which the OPO does not support. I am guessing you are in a Band 20 area at the moment and that is why it is not working.

flumpster said:
Unless this has changed recently Three uses 2 bands for LTE(4G). One is Band 3 which the OPO supports which they use it big cities and towns and the other is Band 20 which they use in rural areas which the OPO does not support. I am guessing you are in a Band 20 area at the moment and that is why it is not working.
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Well the 4g actually works, sorry maybe I wasn't clear, although it is patchy, but the issue is that often when the 4G is on, the phone doesn't allow incoming and outgoing calls even if there is full reception. When I switch off the 4g back to 3g the phone works again.

duratto said:
Well the 4g actually works, sorry maybe I wasn't clear, although it is patchy, but the issue is that often when the 4G is on, the phone doesn't allow incoming and outgoing calls even if there is full reception. When I switch off the 4g back to 3g the phone works again.
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Here is something I just found on the subject.
Only two UK carriers offers LTE support with those frequencies: EE (supports band 3 & 7) and Three (supports band 3). Other carriers won't be able to support LTE coverage for the OnePlus One as they operate within band 20, which isn't supported by the phone.
Band 3 has limited usability in weaker signal areas, where it has difficulty penetrating built up areas and the interior of buildings, but it can carry more users. Band 7 (only supported by EE) offers wider coverage, as it can reach further, but cannot support as many users.
If you are an EE consumer, you wont experience any LTE problems. However, if you are a Three consumer (as I am), you may experience problems with LTE coverage, when you get outside of the major cities or in weaker signal areas within cities.
However, as Three offers extensive HSPDA+ coverage (or Advanced 3G (DC‑HSDPA) as they call it), you will still be able to get very fast data speeds (up to 42 Mbps). As Three offers 3G under the 2100MHz you will be able to get this speed with the OnePlus One in major cities and regular 3G in the rest of the UK.
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flumpster said:
Here is something I just found on the subject.
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thanks, that's useful, although I still wonder what causes that problem as I had it a few times now (can't make/receive calls when on LTE) as I assume the band won't have anything to do with it. I was hoping to find somebody else with that problem on Three, perhaps it is just a Three thing...

I'm on Three and I either get LTE (mainly London where I work) or H+. Either way I've never struggled, as far as I know, to receive phone calls or texts. Worried now though

duratto said:
thanks, that's useful, although I still wonder what causes that problem as I had it a few times now (can't make/receive calls when on LTE) as I assume the band won't have anything to do with it. I was hoping to find somebody else with that problem on Three, perhaps it is just a Three thing...
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I am having the same problem, have tried different serivce provider sims in my phone and they work fine, just the three sim, which I can't change as I am in a contract with them, and OPO customer service is horrendous! I have tried the sim in another phone and it works fine. I have tried to chnge to 3G only, but all the three sims are 4G enabled, so when I select the Three 3G network, the phone wont register on it, I can only register on the 4G network. I have tried installing CM11, CM12, Paranoid Android, OxygenOS and had no effect, tried safe mode, tried rooting the phone, and still no effect.
Really need a solution to this, but not finding any

To be honest this problem happens at random, at least for me, so it's difficult to find the exact cause. Touch wood I haven't had it for about a month now, but like I said, and from previous experience, it could happen anytime. Read what flumpster has found in the previous post. As for a solution, I'm not sure what to say, other than switch to 3G, wait for the 3g network to pick up and then switch back to LTE, (you might need to repeat this a couple of times if it doesn't work) that fixes it, at least temporarily.
whitestar7 said:
I am having the same problem, have tried different serivce provider sims in my phone and they work fine, just the three sim, which I can't change as I am in a contract with them, and OPO customer service is horrendous! I have tried the sim in another phone and it works fine. I have tried to chnge to 3G only, but all the three sims are 4G enabled, so when I select the Three 3G network, the phone wont register on it, I can only register on the 4G network. I have tried installing CM11, CM12, Paranoid Android, OxygenOS and had no effect, tried safe mode, tried rooting the phone, and still no effect.
Really need a solution to this, but not finding any
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Click to collapse

duratto said:
To be honest this problem happens at random, at least for me, so it's difficult to find the exact cause. Touch wood I haven't had it for about a month now, but like I said, and from previous experience, it could happen anytime. Read what flumpster has found in the previous post. As for a solution, I'm not sure what to say, other than switch to 3G, wait for the 3g network to pick up and then switch back to LTE, (you might need to repeat this a couple of times if it doesn't work) that fixes it, at least temporarily.
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i can't switch to 3G, when I sleect preferred network as 3G it says there is no service

Question Usa carrier support

I've asked this question before and I can't find anything.
Can anybody confirm the 0/B/E versions to work on TMobile or att or mvnos of them?
If someone wants to be so kindid appreciate it. Really wanting to buy one for root.

if you use AT&T, don't buy any international models because they will block your sim. You may call them to unlock it but the sim will be blocked again after a couple days. The reason is AT&T has a list of supported models and international phones are not on their list.
T-Mobile doesn't have such a horrible thing. So yeah, it works.
Oh, and I am using 908E/DS on T-Mobile network.

bobimbap said:
if you use AT&T, don't buy any international models because they will block your sim. You may call them to unlock it but the sim will be blocked again after a couple days. The reason is AT&T has a list of supported models and international phones are not on their list.
T-Mobile doesn't have such a horrible thing. So yeah, it works.
Oh, and I am using 908E/DS on T-Mobile network.
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So when I purchase my S22 Ultra. I can use it on T-Mobile no issues? I assume it can be unlocked rooted and install custom roms.

doubledragon5 said:
So when I purchase my S22 Ultra. I can use it on T-Mobile no issues? I assume it can be unlocked rooted and install custom roms.
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That’s what I’ve done and been using till now. Bought the 908E on Amazon, unlocked the bootloader and rooted it. No custom rom for it yet other than tha Magisk rom by dr.ketan. I’ve always been an AT&T customer in so many years. They refused to work with me to make my phone work on their network so I switch to T-mobile.
I’m using the S22 Ultra 908E on T-mobile to write this right now. I don’t see any issue. If there is one, the phone is the issue.

bobimbap said:
That’s what I’ve done and been using till now. Bought the 908E on Amazon, unlocked the bootloader and rooted it. No custom rom for it yet other than tha Magisk rom by dr.ketan. I’ve always been an AT&T customer in so many years. They refused to work with me to make my phone work on their network so I switch to T-mobile.
I’m using the S22 Ultra 908E on T-mobile to write this right now. I don’t see any issue. If there is one, the phone is the issue.
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Carrier aggregation and 5g all working well for you on t-mobile?

The missing of band 71 if using on TMO, is a big loss. I wouldn't bother.

dj24 said:
Carrier aggregation and 5g all working well for you on t-mobile?
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No. I don't expect an international phone to be fully working on a US carrier network such as TMO or ATT due to missing bands. If I have to choose between slower connection and the ability to root, I'd choose the latter one. I chose TMO because it works, white ATT not working at all.
There are wifi networks available almost everywhere I go nowadays. In case there is none, usually when I was driving, 4G/LTE always available and that's good enough.

bobimbap said:
No. I don't expect an international phone to be fully working on a US carrier network such as TMO or ATT due to missing bands. If I have to choose between slower connection and the ability to root, I'd choose the latter one. I chose TMO because it works, white ATT not working at all.
There are wifi networks available almost everywhere I go nowadays. In case there is none, usually when I was driving, 4G/LTE always available and that's good enough.
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So to confirm, no signal at all for att/cricket?
What about h20wireless? Redpocket mobile?
What site to use to check compatibility? I'll take slower speeds

To confirm:
1. AT&T blocks your sim right away. Your phone turns into a small tablet. That's it. Nothing you can do about it. I don't bother with smaller companies. I only go for the big boys.
2. T-Mobile will give you slower speed and freedom of root. This comes from my experience. Very little chance I need to use my plan's data. I can't tell the speed is slower at all. As far as carrier's features, I don't use any of them, but I think you can still have them if you change it to proper CSC.
Google search your model then you will find what bands your model support. Then Google search your choice of carrier to see what bands they have. Google is your friend.

Not just slower speed. Theres some areas that band 71 would be required to even get service at all in rural areas. Like just 5 min from my house if you have T-Mobile and your phone doesnt have band 71 no service.

hyelton said:
Not just slower speed. Theres some areas that band 71 would be required to even get service at all in rural areas. Like just 5 min from my house if you have T-Mobile and your phone doesnt have band 71 no service.
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Will Samsung Galaxy S22 Ultra work in USA?
In this page we are going to show you the compatibility of Samsung Galaxy S22 Ultra with the mobile networks of USA and with the telephony operators that provide service in USA.
www.kimovil.com
This site is what I used and it looks like the version I want to get will suffice. But what do you think?

this.guy.lol said:
Will Samsung Galaxy S22 Ultra work in USA?
In this page we are going to show you the compatibility of Samsung Galaxy S22 Ultra with the mobile networks of USA and with the telephony operators that provide service in USA.
www.kimovil.com
This site is what I used and it looks like the version I want to get will suffice. But what do you think?
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All depends on area. It's still missing band 71 and N71 5G. I personally couldn't as it would make my phone useless in areas I frequent

hyelton said:
All depends on area. It's still missing band 71 and N71 5G. I personally couldn't as it would make my phone useless in areas I frequent
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But you could get the 4G LTE tho at least right? I have a 5G phone and i only get LTE speeds which is fine but the carrier doesn't offer 5G.

this.guy.lol said:
But you could get the 4G LTE tho at least right? I have a 5G phone and i only get LTE speeds which is fine but the carrier doesn't offer 5G.
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No. Band 71 is an LTE band on TMobile.

hyelton said:
No. Band 71 is an LTE band on TMobile.
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Ohh ok.

hyelton said:
Not just slower speed. Theres some areas that band 71 would be required to even get service at all in rural areas. Like just 5 min from my house if you have T-Mobile and your phone doesnt have band 71 no service.
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In the end, as @hyelton just said, it all depends on your area, your luck and how you would use your phone... There is no definite answer to the op's question until he figures it out himself. It works for me and I am happy with what I got but that may not apply to everyone else... If the op decides to roll the dice for a chance to get a phone that he can have total freedom over it he can go for it. Otherwise, just buy the one on Samsung website ending with U models and have all of his worries put away. Honestly, I didn't think about any of that when I placed my order.

My unlocked 908U1 on t-mobile work perfectly, supported band25 with 130-180mbps speeds on LTE.
ps: 5G is totally disabled as it switching every 5 seconds between 4G\5G networks

malikin said:
My unlocked 908U1 on t-mobile work perfectly, supported band25 with 130-180mbps speeds on LTE.
ps: 5G is totally disabled as it switching every 5 seconds between 4G\5G networks
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My OP was based on the international versions because I absolutely have to have root. I have not owned a phone that I could not have root capabilities in over 10 years.
I don't care so much about 5G I just want to have a phone that functions on a US carrier from overseas. Maybe it got lost in translation but I just want to know what carriers people have and if anybody has the carriers that I mentioned with confirmation or denial of service.
Specifically the carriers on most questioned about are H2O wireless and red pocket. I'm not very Google friendly and so I'm not familiar with the bands I'm used to just buying a phone and it working as intended for my purposes.

^^^ You're overthinking it. Just pull up the bandwidths for the carrier you're looking to utilize and go from there. As mentioned you're better served by going for one of the major carriers and maybe their prepaid services. Remember major carriers prioritize their post paid plans first for their optimum network traffic followed by their own respective prepaid plans and finally the MVNOs. I would stay away from the MVNOs in your scenario if you're importing a handset not configured for the U.S to begin it and degrading it further by using an MVNO.

Question Cell radio band settings found

Download MIUI hidden settings activity launcher, and look for radio band mode. It lists all the bands. I did not try the toggles or anything as this is my work phone, but figured I'd share for some that need better service.

Thank you for sharing this. Is there anyone on here that is willing to test this? I was in doubt between the 12s Ultra and the ZTE Axon 40 Ultra. Went for the Axon, but as you can read elsewhere in this forum, that didn't end well.
One of the things that was holding me back on the 12s Ultra, was the lack of Band 20. So if that can be fixed that would help me a lot.
Any Dutch in here that can say something about the effect on service in the Netherlands without the Band 20?
Any info is appreciated, thnx!

Tried it, but to my knowledge it didn't have any effect. At least on Vodafone it didn't. The band support, it's processor related and not software related.
3G support is turned off in NL. So the areas where you don't have 4G (or 5G), you would be getting edge. It's extreme slow to the point that you'll be clawing out your eyes. The districts where I regularly visit are Friesland, Groningen, Drenthe and Overijssel. So the other ones I don't have any knowledge. What I do is search for a free wifi or connect to the KPN or Ziggo hotspots. Overall not a very big problem or annoyance, but something to remember and consider if you live in the Netherlands.

Taghdir6 said:
Tried it, but to my knowledge it didn't have any effect. At least on Vodafone it didn't. The band support, it's processor related and not software related.
3G support is turned off in NL. So the areas where you don't have 4G (or 5G), you would be getting edge. It's extreme slow to the point that you'll be clawing out your eyes. The districts where I regularly visit are Friesland, Groningen, Drenthe and Overijssel. So the other ones I don't have any knowledge. What I do is search for a free wifi or connect to the KPN or Ziggo hotspots. Overall not a very big problem or annoyance, but something to remember and consider if you live in the Netherlands.
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Hi Taghdir6,
Thank you for trying and the extra info. Very useful for me.
If you would determine the percentage of the time you have network issues, what would be your estimation? Do you have indoor issues?
So if I understand correctly, if there isn't 4g coverage on a different band, it switches to band 20 which most of the time is the only band available in the more rural parts? Since the 12s Ultra doesn't support this, only edge is available outside de Randstad? 3g isn't available as well?
Sorry for being such a noob on this matter and thank you! Any reply is appreciated.

Mr. Make Believe said:
Hi Taghdir6,
Thank you for trying and the extra info. Very useful for me.
If you would determine the percentage of the time you have network issues, what would be your estimation? Do you have indoor issues?
So if I understand correctly, if there isn't 4g coverage on a different band, it switches to band 20 which most of the time is the only band available in the more rural parts? Since the 12s Ultra doesn't support this, only edge is available outside de Randstad? 3g isn't available as well?
Sorry for being such a noob on this matter and thank you! Any reply is appreciated.
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I didn't experience any network issues related to reception, but only internet speed. If I'm not mistaken t-mobile is the only provider that hasn't turned 3G support off yet. They will eventually. The other providers don't support 3G anymore. So you're right if you're in an area where there is no support for the frequency, then you will be on edge. In my experience it's not very often. In my case I still have B1, 3 and 7 for 4G support. I still get 4g most of the time, but I did experience a couple of times.that I needed to search something on the internet and I was on edge. So the speed was very very slow. The other times I had 4g so the speed was great.
No indoor issues by the way. Downstairs it's edge most of the times and upstairs it's 4G. Very strange but it's true.

Thnx for the info, again; really appreciate it! One sim will be T-Mobile, one will be KPN. So I think I will be fine most of the time. I think I will go for it. You helped a lot