Hello friends, it's been a while since someone posed the question below. I just bought a K20 Pro (China Version) from Aliexpress and only found out about the limitations of LTE bands. I was wondering if there is now a workaround to add LTE bands with a newer version QPST or another workaround/hack? If that, could we expect something in the future or am I pretty much toast?
You are toast. Time to buy a phone that's got all the bands you need. I'm in the same spot I need to give up on these POS international phone with almost 0 LTE bands for the USA.
954wrecker said:
You are toast. Time to buy a phone that's got all the bands you need. I'm in the same spot I need to give up on these POS international phone with almost 0 LTE bands for the USA.
Click to expand...
Click to collapse
I hope at some point there will be a hack, like there has been in the past. where are the geniuses on this forum ?
It's not about geniusness, it's utterly time wasting and requires a hell lot of effort which in the end doesn't guarantee it will unlock the bands, so next time get a phone with your required bands.
Sent from my Redmi K20 Pro using Tapatalk
asfazrq said:
Hello friends, it's been a while since someone posed the question below. I just bought a K20 Pro (China Version) from Aliexpress and only found out about the limitations of LTE bands. I was wondering if there is now a workaround to add LTE bands with a newer version QPST or another workaround/hack? If that, could we expect something in the future or am I pretty much toast?
Click to expand...
Click to collapse
I seen people talking about how to do it on LO17 thread
SuperShad98 said:
I seen people talking about how to do it on LO17 thread
Click to expand...
Click to collapse
Didn't find any mention of adding LTE bands in the LOS thread. Can you point me in the right direction with a post number or page number?
I'm referring to the comments around the end of the first page on this thread (also continues to page 2)
https://forum.xda-developers.com/k20-pro/development/rom-lineageos-17-0-t3976469
I also found this, which seems pretty much what we need
https://forum.xda-developers.com/android/apps-games/app-qualcomm-nv-calculator-adding-2g-3g-t2915649
**** these international phones I'm tired of them not having the bands we use in the USA activated. My mix 3 had every single LTE band and this K20 pro has 1 ****ty band. Why can't every phone have every band that people use in the world, is it really that hard?
954wrecker said:
**** these international phones I'm tired of them not having the bands we use in the USA activated. My mix 3 had every single LTE band and this K20 pro has 1 ****ty band. Why can't every phone have every band that people use in the world, is it really that hard?
Click to expand...
Click to collapse
If you look at the OnePlus 7 Pro bands you can see that it's easy, but brands don't want to do that for profits of selling a new phone when someone moves to a different country and so on, however I am not too sure why xiaomi doesn't have all bands enabled on the global version of the phone like OnePlus, I would understand locking the CN and Indian version, but the global should have all bands enabled
Engineer code qualcomm 855
Unfortunately, even if I've bought a MI9 T pro , described with correct bands & charger (need 4G B20 & B28) ; they send me a Redmi K20 pro with chinese plug... I opened a dispute but it drags on and I'm afraid of not having a commercial solution. So If someone did find a technical one ; I'd be very glad !
I saw some old techniques on Youtube, none of them works ; nor engineering codes (#*#*...) Is there a way to know them ? Thank you !
Good luck, but it's almost improbable, Even Pocophone failed.
Sent from my Redmi K20 Pro using Tapatalk
network signal guru which is available in play store with that can change bands of LTE but root access is must
leothomas2580 said:
network signal guru which is available in play store with that can change bands of LTE but root access is must
Click to expand...
Click to collapse
It won't work, if it was that easy it would be miracles, have you tried?
Sent from my Redmi K20 Pro using Tapatalk
ishaqtkr said:
It won't work, if it was that easy it would be miracles, have you tried?
Click to expand...
Click to collapse
Right now I'm using custom rom(evolution x) on my Redmi k20 pro/mi9 t pro didn't tried on Chinese rom
but the bands works using network signal guru
leothomas2580 said:
Right now I'm using custom rom(evolution x) on my Redmi k20 pro/mi9 t pro didn't tried on Chinese rom
but the bands works using network signal guru
Click to expand...
Click to collapse
This from the Network Signal Guru FAQs
Can you changed the band capacities of my cell phone. My cell phones are from other countries and the band capabilities are not so good, and I want more band support. Could NSG do that?
NSG cannot provide this kind of feature and we don't change the band capabilities. It's different among different phones, so it's dangerous and once failed, you will lose all of the band capabilities of certain radio technology. And it's very difficult to recover.
So, no it's not possible to unlock the bands.
Robbo.5000 said:
This from the Network Signal Guru FAQs
Can you changed the band capacities of my cell phone. My cell phones are from other countries and the band capabilities are not so good, and I want more band support. Could NSG do that?
NSG cannot provide this kind of feature and we don't change the band capabilities. It's different among different phones, so it's dangerous and once failed, you will lose all of the band capabilities of certain radio technology. And it's very difficult to recover.
So, no it's not possible to unlock the bands.
Click to expand...
Click to collapse
I knew it, if it was as easy as using an app everyone would import phones from China and modify lol
Sent from my Redmi K20 Pro using Tapatalk
ishaqtkr said:
I knew it, if it was as easy as using an app everyone would import phones from China and modify lol
Click to expand...
Click to collapse
Okay thank you
It's likely the bands are "hardware locked".
So depending on the region of the device various bands will be enabled or disabled. Every region of the device might well have the same modem - and that modem might support all the bands you want - but they won't work and there'll be no way of getting them to work as it'll be on a hardware-level.
It's why when you flash a Global ROM to a Chinese handset bands don't appear and vice versa. Both region ROMs will have their respective modern firmware but that doesn't change what bands you get - which would imply its literally hard-coded into the modem itself.
What I've read on the pocophone implies the band programming is locked, read-only, unmodifiable.
every site i check says mi phone can use lte in my country but i cant connect to it on my phone .... what do i do??
Related
I have a question for all the lucky ones of you who have a Mi Mix.
With most of the Xiaomi phones which are released, people are unhappy about the lack of band support for regions outside of China. I know many people in Europe are unhappy about not having Band 20, those of us in Japan would really like to have UMTS Band 6/19 (among others), Australians want LTE Band 28, and people in the US would like Band 12/17.
As you may know, with some phones, it's possible to unlock these bands by putting the phone into diag mode and using Qualcomm tools like QPST. Here in Japan, it was possible to enable the UMTS Bands 6 and 19 on the Mi5 and the Mi Max, but not possible on the Redmi Note 3 or the Mi5S, so it's really case by case.
Seeing as that the Mi Mix is a concept phone people are crazy about all over the world, I am very curious whether it's possible to enable LTE bands and WCMDA bands on the Mi Mix. I don't want to spend the big money to buy one without first having confidence that I can get it to work on my carrier's bands.
So I'd like to start this discussion. Has anyone tried anything? Successes, failures, please post them all!
duraaraa said:
I have a question for all the lucky ones of you who have a Mi Mix.
With most of the Xiaomi phones which are released, people are unhappy about the lack of band support for regions outside of China. I know many people in Europe are unhappy about not having Band 20, those of us in Japan would really like to have UMTS Band 6/19 (among others), Australians want LTE Band 28, and people in the US would like Band 12/17.
As you may know, with some phones, it's possible to unlock these bands by putting the phone into diag mode and using Qualcomm tools like QPST. Here in Japan, it was possible to enable the UMTS Bands 6 and 19 on the Mi5 and the Mi Max, but not possible on the Redmi Note 3 or the Mi5S, so it's really case by case.
Seeing as that the Mi Mix is a concept phone people are crazy about all over the world, I am very curious whether it's possible to enable LTE bands and WCMDA bands on the Mi Mix. I don't want to spend the big money to buy one without first having confidence that I can get it to work on my carrier's bands.
So I'd like to start this discussion. Has anyone tried anything? Successes, failures, please post them all!
Click to expand...
Click to collapse
This (QPST) is something I have no experience with,but,interested in the subject:
I'm good with the band support (for now) as what's available in my area,with my carrier,is supported (Bands 2 &4 on T-Mobile US,no Band 12 or 66 yet),definitely would be nice for at least Band 12,if possible,as I believe my area will get it eventually.
One side note & a positive one at that:
My MiMix locks-in on a signal & has better/stronger connections than any phone I've used to date. This was really noticeable while commuting back & forth to work today,unbelieveable signal quality.
IDK if the ceramic body is better vs other materials,but,recent flagships from HTC/Samsung/LG pale in comparison vs this phone.
i have MI MIX in hand.
I think we need MIX Diag Driver to make it recognize from pc. MI5 Diag drivers are not the same
duraaraa said:
I have a question for all the lucky ones of you who have a Mi Mix.
With most of the Xiaomi phones which are released, people are unhappy about the lack of band support for regions outside of China. I know many people in Europe are unhappy about not having Band 20, those of us in Japan would really like to have UMTS Band 6/19 (among others), Australians want LTE Band 28, and people in the US would like Band 12/17.
As you may know, with some phones, it's possible to unlock these bands by putting the phone into diag mode and using Qualcomm tools like QPST. Here in Japan, it was possible to enable the UMTS Bands 6 and 19 on the Mi5 and the Mi Max, but not possible on the Redmi Note 3 or the Mi5S, so it's really case by case.
Seeing as that the Mi Mix is a concept phone people are crazy about all over the world, I am very curious whether it's possible to enable LTE bands and WCMDA bands on the Mi Mix. I don't want to spend the big money to buy one without first having confidence that I can get it to work on my carrier's bands.
So I'd like to start this discussion. Has anyone tried anything? Successes, failures, please post them all!
Click to expand...
Click to collapse
I may have that 'xtra' mix in a few weeks, will PM you if it pans out and we can see about a software hack to open up other bands.
Sent from my Samsung Galaxy S7 Edge using XDA Labs
wolfgart said:
i have MI MIX in hand.
I think we need MIX Diag Driver to make it recognize from pc. MI5 Diag drivers are not the same
Click to expand...
Click to collapse
I've heard the Mi5 diag drivers were usable on the Mi5S, which is the same SD 821, so that's strange. What happens when you put it in diag mode and plug it in? Can I see a screenshot from device manager, or some evidence of what the device is?
duraaraa said:
I have a question for all the lucky ones of you who have a Mi Mix.
With most of the Xiaomi phones which are released, people are unhappy about the lack of band support for regions outside of China. I know many people in Europe are unhappy about not having Band 20, those of us in Japan would really like to have UMTS Band 6/19 (among others), Australians want LTE Band 28, and people in the US would like Band 12/17.
As you may know, with some phones, it's possible to unlock these bands by putting the phone into diag mode and using Qualcomm tools like QPST. Here in Japan, it was possible to enable the UMTS Bands 6 and 19 on the Mi5 and the Mi Max, but not possible on the Redmi Note 3 or the Mi5S, so it's really case by case.
Seeing as that the Mi Mix is a concept phone people are crazy about all over the world, I am very curious whether it's possible to enable LTE bands and WCMDA bands on the Mi Mix. I don't want to spend the big money to buy one without first having confidence that I can get it to work on my carrier's bands.
So I'd like to start this discussion. Has anyone tried anything? Successes, failures, please post them all!
Click to expand...
Click to collapse
I've got one in hand in the states (where I actually do need to unlock band 12 for T-mobile) and a patch cable I made handy in case this thing goes brick mode from us trying stuff, I'm game to be the guinea pig for science.
Fair warning though, while I'm a web developer that's very comfy with terminal, I'm new to the android ADB world, so pretty detailed instructions / links to guides will be needed ha!
Good luck Ken, I hope you are able to crack this bad boy.
krazyken04 said:
I've got one in hand in the states (where I actually do need to unlock band 12 for T-mobile) and a patch cable I made handy in case this thing goes brick mode from us trying stuff, I'm game to be the guinea pig for science.
Fair warning though, while I'm a web developer that's very comfy with terminal, I'm new to the android ADB world, so pretty detailed instructions / links to guides will be needed ha!
Click to expand...
Click to collapse
first of all I do not have the MIX/any Xiaomi device...but you could try starting here (though think you may have already or have plodded down the path much more already) good luck!
http://forum.xda-developers.com/mi-...how-to-unlock-lte-frequency-bands-mi-t3215880
KOLIOSIS said:
This (QPST) is something I have no experience with,but,interested in the subject:
I'm good with the band support (for now) as what's available in my area,with my carrier,is supported (Bands 2 &4 on T-Mobile US,no Band 12 or 66 yet),definitely would be nice for at least Band 12,if possible,as I believe my area will get it eventually.
Click to expand...
Click to collapse
Is that band 4 only on LTE? I've seen many spec sheets and the carrier I'm on only has band 4 for 3g.
emann56 said:
Is that band 4 only on LTE? I've seen many spec sheets and the carrier I'm on only has band 4 for 3g.
Click to expand...
Click to collapse
this is what I have gathered from various sources (so yes Band 4 is both LTE and 3g)
Tmobile
LTE Frequencies:
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2
Lower 700 MHz band 12
3G/4G Frequencies (WCDMA):
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2
2G Frequencies (GSM/GPRS/EDGE):
1900 MHz PCS band 2
ATT
AT&T 4G HSPA and HSPA+ use 850Mhz(Band 5) and 1900Mhz(Band 2) bands
LTE uses Band 17(700Mhz), Band 5(850Mhz), Band 2(1900Mhz),
Band 4(1700/2100Mhz)
LTE B29 (700)
LTE B30 (2300 WCS)
mac231us said:
this is what I have gathered from various sources (so yes Band 4 is both LTE and 3g)
Tmobile
LTE Frequencies:
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2
Lower 700 MHz band 12
3G/4G Frequencies (WCDMA):
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2
2G Frequencies (GSM/GPRS/EDGE):
1900 MHz PCS band 2
ATT
AT&T 4G HSPA and HSPA+ use 850Mhz(Band 5) and 1900Mhz(Band 2) bands
LTE uses Band 17(700Mhz), Band 5(850Mhz), Band 2(1900Mhz),
Band 4(1700/2100Mhz)
LTE B29 (700)
LTE B30 (2300 WCS)
Click to expand...
Click to collapse
That still doesn't mean the WCDMA Band 4 is enabled. It's possible to have LTE band 4 and not have WCDMA Band 4.
emann56 said:
That still doesn't mean the WCDMA Band 4 is enabled. It's possible to have LTE band 4 and not have WCDMA Band 4.
Click to expand...
Click to collapse
Yes....was just giving the bands and frequencies I know for two GSM carriers in the US. Monitoring the bands at various locations by something like signal check lite (much easier to use/read than lte discovery IMO) would be only way to tell.. If I recall correctly this device has 3g at 850,900,1800,1900 so there is no band 4 on 3g it seems... Although band 4 (1700/2100) COULD be a 3g band too for some devices. Someone with better knowledge can chime in here. I might be wrong.
Sent from my SM-T285M using XDA Free mobile app
krazyken04 said:
I've got one in hand in the states (where I actually do need to unlock band 12 for T-mobile) and a patch cable I made handy in case this thing goes brick mode from us trying stuff, I'm game to be the guinea pig for science.
Fair warning though, while I'm a web developer that's very comfy with terminal, I'm new to the android ADB world, so pretty detailed instructions / links to guides will be needed ha!
Click to expand...
Click to collapse
http://forum.xda-developers.com/mi-...how-to-unlock-lte-frequency-bands-mi-t3215880
any luck so far? Thanks
mac231us said:
http://forum.xda-developers.com/mi-...how-to-unlock-lte-frequency-bands-mi-t3215880
any luck so far? Thanks
Click to expand...
Click to collapse
Update: I have actually successfully forced band twelve with NV values (I can see it stick and unwind the value to see that band 12 is allowed after a reboot). I followed about 10 diff guides to get my bearing on working with the Qualcomm editors and maintenance programs.
Sad to say: the modem in the Mix simply won't do band 12. I talked with a few folks from the Xiaomi Reddit Discord and they confirmed my suspicions that with Xiaomi (with a few exceptions) it is usually hardware that's keeping you off of a band.
I don't personally think there's any amount of software hackery we can do to get bands unlocked.
Edit: I am quite comfortable in ADB / SU and am happy to try any and all suggestions out on my phone in addition to what I've tried already btw. Please do let me know if there's something you think I may have missed following the various unlock threads.
krazyken04 said:
Update: I have actually successfully forced band twelve with NV values (I can see it stick and unwind the value to see that band 12 is allowed after a reboot). I followed about 10 diff guides to get my bearing on working with the Qualcomm editors and maintenance programs.
Sad to say: the modem in the Mix simply won't do band 12. I talked with a few folks from the Xiaomi Reddit Discord and they confirmed my suspicions that with Xiaomi (with a few exceptions) it is usually hardware that's keeping you off of a band.
I don't personally think there's any amount of software hackery we can do to get bands unlocked.
Edit: I am quite comfortable in ADB / SU and am happy to try any and all suggestions out on my phone in addition to what I've tried already btw. Please do let me know if there's something you think I may have missed following the various unlock threads.
Click to expand...
Click to collapse
Sorry to hear that the band could not be tapped into...
yes most likely a hardware thing-like Samsung (some of their models exclusively for Latin america have u.s bands but the 'international' variants of the same models will not do the U.S bands no matter what...
I actually opened one of them (got a damaged T239M) and found indeed that the motherboard is different...(so much speculation and folks asking/trying to flash S. American firmware on like the T705, T239 etc, myself included (not possible anyway even if going through TWRP and flashing modem files etc...bootloader and pit all different..so nothing would change with the other parts of the firmware)
so it is highly likely in this case that the modem will not do bands 12, 17 (ATT) and 29, 30 (ATT). However, it is impressive that for a China phone this will even do bands 2, 4 and 5. Huawei models (again supposedly international) except for some variants of the smaller 5-5.2 inch models (not p9, p8, P8 max, x2, t3, t3 pro, or m3 (some of these are the tablet phone types) and numerous other Chinese phones will not do anything more than 1, 3, 7 and then maybe 8 and 20 or a 28. (all useless for North America). Huawei has an M2 variant that has US bands and also on their smaller phones (certain versions)
so for the Mix, you at least have LTE 2, 4 and 5 (though of lesser importance).
krazyken04 said:
Update: I have actually successfully forced band twelve with NV values (I can see it stick and unwind the value to see that band 12 is allowed after a reboot). I followed about 10 diff guides to get my bearing on working with the Qualcomm editors and maintenance programs.
Sad to say: the modem in the Mix simply won't do band 12. I talked with a few folks from the Xiaomi Reddit Discord and they confirmed my suspicions that with Xiaomi (with a few exceptions) it is usually hardware that's keeping you off of a band.
I don't personally think there's any amount of software hackery we can do to get bands unlocked.
Edit: I am quite comfortable in ADB / SU and am happy to try any and all suggestions out on my phone in addition to what I've tried already btw. Please do let me know if there's something you think I may have missed following the various unlock threads.
Click to expand...
Click to collapse
can you make a detailed guide with all steps and stuff to enable desidered band ? If not works is the same ...
would like to see if LTE Band 20 can be unlocked
wolfgart said:
can you make a detailed guide with all steps and stuff to enable desidered band ? If not works is the same ...
Click to expand...
Click to collapse
I would love to, it's the first thought I had when both starting a new guide and when I finished getting the phone to look for band 12.
I'm currently _buried_ in a project for work right now (it's taking my nights and a lot of sleep from me ha), so nothing soon. But it's on my list of first contributions I'd like to make to this awesome community!
Would you be able to try Band 20 ?
Thanks
krazyken04 said:
I would love to, it's the first thought I had when both starting a new guide and when I finished getting the phone to look for band 12.
I'm currently _buried_ in a project for work right now (it's taking my nights and a lot of sleep from me ha), so nothing soon. But it's on my list of first contributions I'd like to make to this awesome community!
Click to expand...
Click to collapse
tarkuk said:
would like to see if LTE Band 20 can be unlocked
Click to expand...
Click to collapse
So far my experience is that if the band isn't listed in those spec sheet it isn't there in the hardware (apparently a very Xiaomi thing to do). I'm finding that they rarely software lock you out of the bands, it's usually that their hardware simply doesn't support the band.
Hello, I want to buy a xiaomi mi mix, since it would not support a band of 20, I would like to know with which operators you use the mobile phone. Thank you
ellasgr said:
Hello, I want to buy a xiaomi mi mix, since it would not support a band of 20, I would like to know with which operators you use the mobile phone. Thank you
Click to expand...
Click to collapse
There are sites with information on which operators support which bands.
https://www.frequencycheck.com/countries/germany
jazz452 said:
There are sites with information on which operators support which bands.
Click to expand...
Click to collapse
May be, but none reported experience with xiaomi mi mix
Even possess a huawei p8 max and have quite different experiences with the German net made as described in network operators
ellasgr said:
May be, but none reported experience with xiaomi mi mix
Even possess a huawei p8 max and have quite different experiences with the German net made as described in network operators
Click to expand...
Click to collapse
I have Vodafone and get H+ almost everywhere in bavaria but LTE is only in City´s like Munich or Landsberg etc.
ellasgr said:
Hello, I want to buy a xiaomi mi mix, since it would not support a band of 20, I would like to know with which operators you use the mobile phone. Thank you
Click to expand...
Click to collapse
I am using O2. I get H+ everywhere. LTE is impossible in the area of Essen. That's were I live.
EE, and BT work perfectly, Vodafone and O2 not so good, that's in the UK, so it sound's pretty similar to German networks.
Anyone using the mix with o2/eplus?`they should use B3/7/20 for LTE. So just in General is lte working on it in Germany?
No LTE 20 is not working, other LTE channels may work.Depending on where you are you will have limited LTE access or nil.
Hi,
I bought an one plus 3T in india and brought it to US. I'm getting only E not even 3G. When I enquired in T mobile/lyca store, i was told that india unlocked mobile won't support the US bands. Network upgraded. It was big surprise to me. Please suggest me how to unblock additional LTE bands in my 3T mobile.
That's not possible, you should trade your 3t A3003 for a 3t A3000 American band-unlocked model.
Check the specifications for each model under connectivity.
https://oneplus.net/us/3t/specs
Wait, what?
I live in Sri Lanka (Tiny country below India) and my 3T is the Indian device. I toured Europe for 2 weeks, and I used an O2 Sim, and used LTE in Europe for the whole time I was there. Have you tried going to Settings, and selecting "LTE/3G Only"? That may fix your issue.
I swear, there should be no issue with the bands.
thes3usa said:
Wait, what?
I live in Sri Lanka (Tiny country below India) and my 3T is the Indian device. I toured Europe for 2 weeks, and I used an O2 Sim, and used LTE in Europe for the whole time I was there. Have you tried going to Settings, and selecting "LTE/3G Only"? That may fix your issue.
I swear, there should be no issue with the bands.
Click to expand...
Click to collapse
India uses FDD 850, 1800 and TDD 2400. Most of the Europe uses TDD 1800. So you getting LTE in Europe is not a surprise.
USA uses 700, 1700, 1900, 2100, 2300
Varies with MSP
You will at least get 3G with T-Mobile and AT&T
Sent from my ONEPLUS A3003 using Tapatalk
thes3usa said:
Wait, what?
I live in Sri Lanka (Tiny country below India) and my 3T is the Indian device. I toured Europe for 2 weeks, and I used an O2 Sim, and used LTE in Europe for the whole time I was there. Have you tried going to Settings, and selecting "LTE/3G Only"? That may fix your issue.
I swear, there should be no issue with the bands.
Click to expand...
Click to collapse
Europe and india uses the same bands. I lived in uk and used the uk phones in india and indian phones over there. Its the states that uses different frequencies so most of phones don't work properly outside states.
smokin901 said:
India uses FDD 850, 1800 and TDD 2400. Most of the Europe uses TDD 1800. So you getting LTE in Europe is not a surprise.
USA uses 700, 1700, 1900, 2100, 2300
Varies with MSP
You will at least get 3G with T-Mobile and AT&T
Sent from my ONEPLUS A3003 using Tapatalk
Click to expand...
Click to collapse
bonham1988 said:
Europe and india uses the same bands. I lived in uk and used the uk phones in india and indian phones over there. Its the states that uses different frequencies so most of phones don't work properly outside states.
Click to expand...
Click to collapse
Ah, thanks for clearing that up for me. I had no clue that it uses the same bands.
thes3usa said:
Ah, thanks for clearing that up for me. I had no clue that it uses the same bands.
Click to expand...
Click to collapse
Compatibility of phones with the cell networks in the US are a total pain in the you-know-what. We have 4 different major carriers, all using different bands (a little bit of band sharing, but most completely different) for 3G and LTE (GSM is a little more standardized thankfully). Basically, as a general rule if a device not intended/designed to work on US (and depends on which exact US carrier), you are probably going to run into some incompatibilities (no 3G or no LTE, or limited connectivity).
redpoint73 said:
Compatibility of phones with the cell networks in the US are a total pain in the you-know-what. We have 4 different major carriers, all using different bands (a little bit of band sharing, but most completely different) for 3G and LTE (GSM is a little more standardized thankfully). Basically, as a general rule if a device not intended/designed to work on US (and depends on which exact US carrier), you are probably going to run into some incompatibilities (no 3G or no LTE, or limited connectivity).
Click to expand...
Click to collapse
Talk about synchronicity eh? But do the difference in bands give any speed differences, or call clarity? In the blind about these stuff, coming from a country that has only one carrier out of five who is still beta testing VoLTE.
thes3usa said:
But do the difference in bands give any speed differences, or call clarity?
Click to expand...
Click to collapse
Not an expert, and had to Google that. From what I'm reading, lower frequency (MHz) has better penetration (through buildings, etc.) while higher frequency bands have higher data capacity.
There are steps on how to unlock additional bands. There are like 50 steps. I dont remember where I've seen it but if you google how to unlock bands on OnePlus you will find it. Also try to flash Oxygen OS from US web site which I see no reason to work but just a suggestion lol
pk-air said:
Also try to flash Oxygen OS from US web site which I see no reason to work but just a suggestion lol
Click to expand...
Click to collapse
There are no region specific versions of OxygenOS, so this will do nothing but reflash the latest update.
pk-air said:
There are steps on how to unlock additional bands. There are like 50 steps. I dont remember where I've seen it but if you google how to unlock bands on OnePlus you will find it. Also try to flash Oxygen OS from US web site which I see no reason to work but just a suggestion lol
Click to expand...
Click to collapse
There are no steps at all. You cannot "unlock" bands, as they're hardware related. There's no way to switch bands out of the blue.
thes3usa said:
There are no steps at all. You cannot "unlock" bands, as they're hardware related. There's no way to switch bands out of the blue.
Click to expand...
Click to collapse
No you can't switch but you can unlock some bands which might help
https://forum.xda-developers.com/oneplus-3/how-to/guide-unlock-additional-lte-bands-t3519563
---------- Post added at 09:23 PM ---------- Previous post was at 09:16 PM ----------
pitrus- said:
There are no region specific versions of OxygenOS, so this will do nothing but reflash the latest update.
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as I said I dont see any reason for it to work
thes3usa said:
There are no steps at all. You cannot "unlock" bands, as they're hardware related. There's no way to switch bands out of the blue.
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At one time that was true. But for Qualcomm SoCs, the band support stopped being set in hardware (at least for the most part) some 3 years ago with Snapdragon 801 (or maybe earlier, but definitely with 801). Support for all or most bands (might be some exceptions) used worldwide is there, but the specific bands are enabled in firmware.
https://www.qualcomm.com/products/rf
That said, enabling bands is a long process as noted; and has the risk of resulting in a radio brick. So it's best to buy the correct region version OP3T (which supports the needed bands out of the box) when possible.
redpoint73 said:
At one time that was true. But for Qualcomm SoCs, the band support stopped being set in hardware (at least for the most part) some 3 years ago with Snapdragon 801 (or maybe earlier, but definitely with 801). Support for all or most bands (might be some exceptions) used worldwide is there, but the specific bands are enabled in firmware.
https://www.qualcomm.com/products/rf
That said, enabling bands is a long process as noted; and has the risk of resulting in a radio brick. So it's best to buy the correct region version OP3T (which supports the needed bands out of the box) when possible.
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Why aren't all bands just enabled by default then? I don't understand why there are different models for different regions.
I have a US OP3T and I'm visiting India. It''s working with Jio in India (although it supports only only of the 3 bands used by Jio) but VoLTE doesn't work for some reason.
I'm a bit confused, they are going on about the 9t Pro coming out for Global market, but on Aliexpress there is a K20 Pro with 'Global Rom'.
If i was to buy one of these would it not work in New Zealand? I'm really keen on getting this phone but not sure what to buy.
According to this, it works perfectly with my provider 2Degrees
https://www.kimovil.com/en/where-to-buy-redmi-855
Thanks
NZ Razer said:
I'm a bit confused, they are going on about the 9t Pro coming out for Global market, but on Aliexpress there is a K20 Pro with 'Global Rom'.
If i was to buy one of these would it not work in New Zealand? I'm really keen on getting this phone but not sure what to buy.
According to this, it works perfectly with my provider 2Degrees
https://www.kimovil.com/en/where-to-buy-redmi-855
Thanks
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The K20 Pro does not have global network bands. Where it's sold with a global ROM, these are unofficial global ROMs, they do not and cannot add extra lte bands.
The Mi 9T, as well as coming with an official global ROM also had a few extra lte bands unlocked. The Mi 9T Pro will do the same, when it eventually arrives.
Looking at your carrier, it uses bands 3, 7 and 28 (maybe 40 too, but could have been a different NZ carrier). The K20 Pro is missing band 28.
Band 28 is a relatively low frequency band, these can travel further and penetrate obstacles better, before losing significant signal strength and quality. Quite often the low frequency bands are used in rural areas, where masts are spread widely, or major city centres that are very heavily built up.
NZ is a very sparsely populated country, so it's possible band 28 is heavily relied on outside of the town's and cities. But this is only my slightly educated guess. I would suggest doing some more homework on how much of the 2Degree network relies on band 28.
I imagine in and around towns and cities you'll have very little issues, but that's a small percent of the country.
Assuming the Mi 9T Pro will have the same bands as the Mi 9T, then it will come with band 28
Robbo.5000 said:
The K20 Pro does not have global network bands. Where it's sold with a global ROM, these are unofficial global ROMs, they do not and cannot add extra lte bands.
The Mi 9T, as well as coming with an official global ROM also had a few extra lte bands unlocked. The Mi 9T Pro will do the same, when it eventually arrives.
Looking at your carrier, it uses bands 3, 7 and 28 (maybe 40 too, but could have been a different NZ carrier). The K20 Pro is missing band 28.
Band 28 is a relatively low frequency band, these can travel further and penetrate obstacles better, before losing significant signal strength and quality. Quite often the low frequency bands are used in rural areas, where masts are spread widely, or major city centres that are very heavily built up.
NZ is a very sparsely populated country, so it's possible band 28 is heavily relied on outside of the town's and cities. But this is only my slightly educated guess. I would suggest doing some more homework on how much of the 2Degree network relies on band 28.
I imagine in and around towns and cities you'll have very little issues, but that's a small percent of the country.
Assuming the Mi 9T Pro will have the same bands as the Mi 9T, then it will come with band 28
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It says that 2degrees doesn't use B28, only other carriers in NZ. So that would mean its safe to assume it would work?
Thanks
NZ Razer said:
It says that 2degrees doesn't use B28, only other carriers in NZ. So that would mean its safe to assume it would work?
Thanks
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I checked on Wikipedia, however I was looking at the bands for Spark by mistake. 2Degrees uses 3, 8 and 28.
https://en.wikipedia.org/wiki/List_of_LTE_networks?wprov=sfla1
Band 8 is on the K20 Pro and is also a low frequency band. So it could well be that it will work OK. However it is showing that band 8 was added to the 2Degrees network only last year, so might still be wise to see if you can find out how widespread band 8 is used on their network.
Edit:
A bit more reading. The 2Degree website FAQs confirms it uses the above 3 bands. Band 8 was previously used for their 2G network, but was freed up when they turned off 2G, which allowed them to use it for LTE. Maybe that will mean it's use is widespread.
I'm not sure about nz but it works perfectly fine here in Australia. The only band we use in Aus that it's missing is B20 which is very common. But fortunately if you're with Telstra in Aus they don't have any areas that only run on B20 so there's always something for me to connect to. I also live in a rural area.
So my advice is to check different areas all over nz to see what they support. I used a site called cellmapper to do this https://www.cellmapper.net
NZ Razer said:
I'm a bit confused, they are going on about the 9t Pro coming out for Global market, but on Aliexpress there is a K20 Pro with 'Global Rom'.
If i was to buy one of these would it not work in New Zealand? I'm really keen on getting this phone but not sure what to buy.
According to this, it works perfectly with my provider 2Degrees
https://www.kimovil.com/en/where-to-buy-redmi-855
Thanks
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Not sure about NZ, but in Australia it works. I'm with ALDI mobile which I guess is Telstra.
billybrownbear said:
I'm not sure about nz but it works perfectly fine here in Australia. The only band we use in Aus that it's missing is B20 which is very common. But fortunately if you're with Telstra in Aus they don't have any areas that only run on B20 so there's always something for me to connect to. I also live in a rural area.
So my advice is to check different areas all over nz to see what they support. I used a site called cellmapper to do this https://www.cellmapper.net
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Vladimir Lenin said:
Not sure about NZ, but in Australia it works. I'm with ALDI mobile which I guess is Telstra.
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I've gone ahead and purchased it as of an hour ago excited to get my hands on it, this makes me even more confident as your bands are the same pretty much. Can't wait!
billybrownbear said:
I'm not sure about nz but it works perfectly fine here in Australia. The only band we use in Aus that it's missing is B20 which is very common. But fortunately if you're with Telstra in Aus they don't have any areas that only run on B20 so there's always something for me to connect to. I also live in a rural area.
So my advice is to check different areas all over nz to see what they support. I used a site called cellmapper to do this https://www.cellmapper.net
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Australia use band 28, not 20.
Global version and chinese version are using same 4G bands so there won't be any problems.
Sent from my Redmi K20 Pro using Tapatalk
Hello Xiaomi community, I am using my Mi 11 ultra(Chinese - yet to flash EU rom) on T-mobile in US. I have a oneplus 8T as well which is connected to the same network. When I test these two mobiles, which are connected to HSDPA right next to each other, I get 40mbps download speeds on Oneplus 8t but only 10mbps on mi 11 ultra. Is mi 11 ultra or MiUi limiting the network bandwidth? Are there any settings that I can adjust to see the same speeds? Both seem to be connected on Band 2. Appreciate any help with this. @olkitu, please comment.
lalith said:
Hello Xiaomi community, I am using my Mi 11 ultra(Chinese - yet to flash EU rom) on T-mobile in US. I have a oneplus 8T as well which is connected to the same network. When I test these two mobiles, which are connected to HSDPA right next to each other, I get 40mbps download speeds on Oneplus 8t but only 10mbps on mi 11 ultra. Is mi 11 ultra or MiUi limiting the network bandwidth? Are there any settings that I can adjust to see the same speeds? Both seem to be connected on Band 2. Appreciate any help with this. @olkitu, please comment.
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*#*#4636#*#*
avetny said:
*#*#4636#*#*
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Thank you for the info @avetny . I have checked both the mobiles and here is what I see. Oneplus 8t mostly connected to LTE, and Mi 11 ultra switching between EDGE, HSPA and if I force the setting to NR/LTE only, it shows LTE but can't browse anything and no data connection at all. Am I missing something? Also am sitting right next to the TMobile 4g LTE personal cell booster box with both these mobiles
This is when mi 11 on EDGE n/w
This is when mi 11 on LTE (with 20mbps download speed)
This is oneplus 8t mostly connected to LTE with 60 to 100mbps download speeds
Restart device
When I get into that menu and I change the network type the setting doesn't stick,why?
avetny said:
Restart device
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Tried with various settings few times. Am not sure why the connection stability is low and always switching from EDGE to HSPA to LTE where as oneplus rarely shows me HSDPA. I have a 4G LTE T mobile cell spot sitting right next to me.
In terms of the modem Mi 11 ultra has X60 where as oneplus 8t has X55
Check again settings.
Make sure 5G is preferred.
Make sure 5G Smart Switch is off.
This make help too: 5G battery saver is off.
lalith said:
Hello Xiaomi community, I am using my Mi 11 ultra(Chinese - yet to flash EU rom) on T-mobile in US. I have a oneplus 8T as well which is connected to the same network. When I test these two mobiles, which are connected to HSDPA right next to each other, I get 40mbps download speeds on Oneplus 8t but only 10mbps on mi 11 ultra. Is mi 11 ultra or MiUi limiting the network bandwidth? Are there any settings that I can adjust to see the same speeds? Both seem to be connected on Band 2. Appreciate any help with this. @olkitu, please comment.
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Well Xiaomi do not support Carrier Aggregation combinations and 5G used in US. Maybe SA only n41 could work but it's by default disabled outside from China.
OnePlus 8T is US model? You should buy device from your own region to avoid issues. As you know you can check on https://cacombos.com website supported bands and carrier aggregation combinations of devices. Make sure it support Carrier Aggregation combinations your carrier use on your area.
olkitu said:
Well Xiaomi do not support Carrier Aggregation combinations and 5G used in US. Maybe SA only n41 could work but it's by default disabled outside from China.
OnePlus 8T is US model? You should buy device from your own region to avoid issues. As you know you can check on https://cacombos.com website supported bands and carrier aggregation combinations of devices. Make sure it support Carrier Aggregation combinations your carrier use on your area.
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Thank you for the response, would flashing a Global ROM gets me all the Band combos? I understand changing the ROM is not going to get me the missing Band 66 from Chinese version phone, but atleast wondering if I flash, the combos listed on Global version would follow? or ROM flashing will not change any Combos? Thank you.
lalith said:
Thank you for the response, would flashing a Global ROM gets me all the Band combos? I understand changing the ROM is not going to get me the missing Band 66 from Chinese version phone, but atleast wondering if I flash, the combos listed on Global version would follow? or ROM flashing will not change any Combos? Thank you.
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Try the global or Eu ROM
The China one is full of headaches outside china
speedtripler said:
Try the global or Eu ROM
The China one is full of headaches outside china
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Am trying NetMonster to see which cell tower and band(s) its connecting and if its using any combo bands. Typically the combo shows up like - (4G. LTE 1900+ AWS-A). I have not seen a combo so far on this with the Chinese ROM, but not sure if Global/EU ROM makes any difference. Unless the Global/EU ROM deals with Band Combos. Am yet to boot unlock, so could not do a quick try.
Were you able to get better speeds or use NetMonster to see Combo bands with Non Chinese ROM?
lalith said:
Am trying NetMonster to see which cell tower and band(s) its connecting and if its using any combo bands. Typically the combo shows up like - (4G. LTE 1900+ AWS-A). I have not seen a combo so far on this with the Chinese ROM, but not sure if Global/EU ROM makes any difference. Unless the Global/EU ROM deals with Band Combos. Am yet to boot unlock, so could not do a quick try.
Were you able to get better speeds or use NetMonster to see Combo bands with Non Chinese ROM?
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I had great speeds on every ROM but In my city they only use band 78 for 5G and I get about 250-300mb even without line of sight of the antenna, even I'm a restaurant or a mall it's that fast
i haven't been able to spot a 5G tower yet so I can test one in direct line of sight of it but I've read you can get about 700mb/s
speedtripler said:
I had great speeds on every ROM but In my city they only use band 78 for 5G and I get about 250-300mb even without line of sight of the antenna, even I'm a restaurant or a mall it's that fast
i haven't been able to spot a 5G tower yet so I can test one in direct line of sight of it but I've read you can get about 700mb/s
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Wow, that's crazy speed. Never heard of those kind of speeds in US. I wish the phone manufacturers just let the users decide what bands they want to enable in their region if the phone is high-end latest and greatest
Not always but here in london at my place i get 500+Mbps