Can Mi9T's firmware on K20 bring new lte bands? - Redmi K20 / Xiaomi Mi 9T Questions & Answers

That's the question holding me before buy one of these models. I need B28 lte band present on Mi9T but K20 is cheaper than Mi9T.
Can somebody try it?

Dont expect any more bands than what already is on the device. LTE bands are configured on Qualcomms firmware and that's not something we can change at this time or probably ever. Dont buy a new phone with that expectation. You will almost certainly just brick the phone so no one will try.

HockeyLan said:
Dont expect any more bands than what already is on the device. LTE bands are configured on Qualcomms firmware and that's not something we can change at this time or probably ever. Dont buy a new phone with that expectation. You will almost certainly just brick the phone so no one will try.
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isn't there something that can unlock LTE bands on a phone, something called pstm manager??

drago10029 said:
isn't there something that can unlock LTE bands on a phone, something called pstm manager??
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Click to collapse
That was with a leaked tool for old SoCs. Currently we can't do anything about snapdragon 730 or 855 and similar and probably won't ever. It's better to not purchase this phone with the expectation that you can, it's very unlikely to ever work.
Somebody on this forum bricked his phone trying, just search.

HockeyLan said:
Dont expect any more bands than what already is on the device. LTE bands are configured on Qualcomms firmware and that's not something we can change at this time or probably ever. Dont buy a new phone with that expectation. You will almost certainly just brick the phone so no one will try.
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Got it
Ty

Related

Possible to Enable HSPA+ AWS Bands onSM-N910W8

Wondering if this is possible or am I too early? Surely I'm not the only one in who'd like to use his note on Wind in Canada....
klow7 said:
Wondering if this is possible or am I too early? Surely I'm not the only one in who'd like to use his note on Wind in Canada....
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mot sure but I think all the "w8" have the aws band on hspa+
I am guessing (keyword) that it may be like the Note 3 where Samsung will say no but realistically the phones are all the same regardless carrier. You would just have to unlock a Big 3 phone and you would be good to go.
Squirrel_Master said:
I am guessing (keyword) that it may be like the Note 3 where Samsung will say no but realistically the phones are all the same regardless carrier. You would just have to unlock a Big 3 phone and you would be good to go.
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yeah exactly.....Samsung always stay quiet about this......but they"re all the same phone /same soft in fact... like the international variant...they just didn't write all the compatibility band, but in fact most of them have all the band required to work in north America....guy just bought them and it work perfectly even with lte everything....
klow7 said:
Wondering if this is possible or am I too early? Surely I'm not the only one in who'd like to use his note on Wind in Canada....
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Click to collapse
Try this thread and this Qualcomm NV Calculator app.

Unlock LTE bands

Is it possible or will it be possible to unlock LTE bands on the chinese version?
no
So it will never be possible then? I've seen threads were they have unlocked bands on phones like OPO, S5, G4
TorbVea said:
So it will never be possible then? I've seen threads were they have unlocked bands on phones like OPO, S5, G4
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I think its possible. If you can change bands for quallcomm SOCs(Like OPO, One m7, m8). But I think we need guide for this.
I've read this time around the modem is a different SKU depending on what version of the phone you have so I do not think it will be possible.
Of course you can activate the software... But you don't have the hardware antena...
Swatto86 said:
I've read this time around the modem is a different SKU depending on what version of the phone you have so I do not think it will be possible.
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May I ask where have you read this? What's the source?

What LTE bands does Sprint HTC 10 have?

I can't find any definitive answers on this. All I know is the minimum is 25, 26 and 41 but it'd be nice to know the full list. I travel internationally and without other LTE bands like band 7, it makes it tough to use it anywhere outside the US.
EDIT: Someone answered this question in another thread but it would be good to get screenshots to verify this.
m03sizlak said:
LTE Bands: 2 / 4 / 5 / 7 / 12 / 13 / 25 / 26 / 41
I've heard that the FCC filings show that the Sprint variant is not capable (tested or approved) for GSM or WCDMA, which is kind of disappointing since I travel a lot in Canada. Any confirmation on this?
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This list of bands is a little better than both the Sprint variants of the LG G5 and Samsung Galaxy S7. If this phone can be unlocked, you at least have a way to go abroad and use LTE connections in much of Europe and elsewhere. Band 7 is the most common band in the world from what I understand.
I'm curious about this comment about GSM and WCDMA. Hopefully someone can verify this one way or another.
asuh said:
I'm curious about this comment about GSM and WCDMA. Hopefully someone can verify this one way or another.
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Did you ever get an answer on this? I have a Sprint variant of the 10 and am trying to unlock it as I will be travel for the next 2 years. I've done everything I can think of but cannot get the phone's radio to work with any unlocked ROM. I could use some help here. Any advice or information you can provide?
vijn said:
Did you ever get an answer on this? I have a Sprint variant of the 10 and am trying to unlock it as I will be travel for the next 2 years. I've done everything I can think of but cannot get the phone's radio to work with any unlocked ROM. I could use some help here. Any advice or information you can provide?
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If you plan to travel outside the US during most of this time, your best options are to sell your HTC 10 and get one of the few unlocked flagship phones on Sprint's networks, assuming you want to stay with Sprint.
Here are your options:
Google Pixel
Samsung Galaxy S7 SM-930U
Samsung Galaxy S7 SM-935U
Nexus 6P or 5X
Motorola X Pure Edition
Apple iPhone
Here's a full list as of February 2017 of radio unlocked phones compatible with Sprint.
There are other unlocked phones that are not compatible with Sprint because CDMA and LTE bands are crippled or missing.
asuh said:
If you plan to travel outside the US during most of this time, your best options are to sell your HTC 10 and get one of the few unlocked flagship phones on Sprint's networks, assuming you want to stay with Sprint.
Here are your options:
Google Pixel
Samsung Galaxy S7 SM-930U
Samsung Galaxy S7 SM-935U
Nexus 6P or 5X
Motorola X Pure Edition
Apple iPhone
Here's a full list as of February 2017 of radio unlocked phones compatible with Sprint.
There are other unlocked phones that are not compatible with Sprint because CDMA and LTE bands are crippled or missing.
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Click to collapse
Thanks for the response. The thing is I'm not on Sprint and have no desire to be. I won't be in the states long. I bought the phone thinking that like most, it could be unlocked and used as needed wherever I travel to. I knew it wasn't unlocked but figured I could do it myself. Well, I've tried a number of times, and keep having an issue with the radio. Can you explain what you mean by bands being crippled? What I'm trying to find out now is whether it's possible for me to get this HTC10 completely unlocked. I think I've done everything right but maybe not. I'm kinda desperate at this point. I love this phone. And if I have to I'll return it and grab another that can be unlocked but I just have a hard time believing that the phone can't be unlocked. It's a strange concept for me. Any help or info would be appreciated.
vijn said:
Thanks for the response. The thing is I'm not on Sprint and have no desire to be. I won't be in the states long. I bought the phone thinking that like most, it could be unlocked and used as needed wherever I travel to. I knew it wasn't unlocked but figured I could do it myself. Well, I've tried a number of times, and keep having an issue with the radio. Can you explain what you mean by bands being crippled? What I'm trying to find out now is whether it's possible for me to get this HTC10 completely unlocked. I think I've done everything right but maybe not. I'm kinda desperate at this point. I love this phone. And if I have to I'll return it and grab another that can be unlocked but I just have a hard time believing that the phone can't be unlocked. It's a strange concept for me. Any help or info would be appreciated.
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Click to collapse
First, go go Google and look up what LTE bands are.
Crippled LTE bands = the hardware inside the phone will not allow certain LTE bands to work unless physically altered. It doesn't matter which ROM you install, you will not unlock all the LTE bands without physical alteration. https://www.quora.com/Does-installing-different-rom-change-LTE-band-frequency
So no, HTC 10 will never be completely unlocked. Look at the list above and buy one of those phones if you want a completely unlocked phone.
asuh said:
First, go go Google and look up what LTE bands are.
Crippled LTE bands = the hardware inside the phone will not allow certain LTE bands to work unless physically altered. It doesn't matter which ROM you install, you will not unlock all the LTE bands without physical alteration. https://www.quora.com/Does-installing-different-rom-change-LTE-band-frequency
So no, HTC 10 will never be completely unlocked. Look at the list above and buy one of those phones if you want a completely unlocked phone.
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Click to collapse
I'm not sure I fully understand. Yes, I know that different chips have different bands that they work with. So, what you're saying is the Sprint HTC10 variant uses either a different chip or has some sort of other hardware configuration that is incompatible with GSM and the wider LTE bands and that no matter what I do with this phone I'll never have a truly unlocked phone? That's what I have understood, so my best option is to send it back. Ok, I get that. But I have read across tons of forums and threads of people who unlocked their Sprint 10s and are able to use them on other non-cdma carriers. So, how does that work? Are all the Sprint 10s the same or are some more limited than others? Are you essentially saying that i would have to get an unlocked/dev edition of the htc10 to be able to use GSM in other countries?
Sorry if i'm asking stupid questions here, I'm just trying to fully understand this. Thanks again for helping me out on this.
If anyone reading this knows better, please feel free to correct me.
This is my understanding of LTE bands and CDMA/GSM radios.
Phones like HTC 10, which are locked, include hardware that are built for specific usages. Prior to HTC 10, HTC phones built for Sprint's CDMA radio were specifically built to lock out GSM radio signals and most other LTE bands using the hardware. This means you'd have to open the physical device and modify the wiring inside the phone in order to allow other signals to work.
As of HTC 10, the locks are supposedly now just software based but I haven't seen proof of that. What this essentially means is that you should be able to unlock the bootloader and flash new Roms that could allow the GSM radio to work universally. However, lots of people are having issues with it. Here's one story of someone who was mostly successful but still had issues:
https://forum.xda-developers.com/showpost.php?p=68960210&postcount=47
Read through the thread above and you'll see a lot of people having issues trying to fully unlock the radios and LTE bands for this phone.
If you ultimately don't want to be on Sprint anyway, I think you really should consider getting something already unlocked that can universally work anywhere. And lots of interesting non-Sprint compatible phones like OnePlus 3t (among the others on the lists I provided) are already unlocked and have a lot of good capabilities and would work great anywhere. The Pixel is one of the best devices out there and the camera is amazing from what most people say.
So I think your options are limited and I'd highly suggest you consider getting a Pixel or something else already unlocked.
asuh said:
If anyone reading this knows better, please feel free to correct me.
This is my understanding of LTE bands and CDMA/GSM radios.
Phones like HTC 10, which are locked, include hardware that are built for specific usages. Prior to HTC 10, HTC phones built for Sprint's CDMA radio were specifically built to lock out GSM radio signals and most other LTE bands using the hardware. This means you'd have to open the physical device and modify the wiring inside the phone in order to allow other signals to work.
As of HTC 10, the locks are supposedly now just software based but I haven't seen proof of that. What this essentially means is that you should be able to unlock the bootloader and flash new Roms that could allow the GSM radio to work universally. However, lots of people are having issues with it. Here's one story of someone who was mostly successful but still had issues:
https://forum.xda-developers.com/showpost.php?p=68960210&postcount=47
Read through the thread above and you'll see a lot of people having issues trying to fully unlock the radios and LTE bands for this phone.
If you ultimately don't want to be on Sprint anyway, I think you really should consider getting something already unlocked that can universally work anywhere. And lots of interesting non-Sprint compatible phones like OnePlus 3t (among the others on the lists I provided) are already unlocked and have a lot of good capabilities and would work great anywhere. The Pixel is one of the best devices out there and the camera is amazing from what most people say.
So I think your options are limited and I'd highly suggest you consider getting a Pixel or something else already unlocked.
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They are software based. I have unlocked AT&T bands on my Sprint variant, 2 actually , and they worked perfectly fine. I would show you proof but I am back on T-Mobile which the Sprint HTC 10 already has LTE support for by default.
unlock
jblparisi said:
They are software based. I have unlocked AT&T bands on my Sprint variant, 2 actually , and they worked perfectly fine. I would show you proof but I am back on T-Mobile which the Sprint HTC 10 already has LTE support for by default.
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how did you unlock it manualy? can you show me some instruction?
jacobtvaliashvili said:
how did you unlock it manualy? can you show me some instruction?
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See my other reply.

People often ask if you should get exynos or snapdragon - now we know, EXYNOS!

always go for exynos. it's samsung's in house processor and free from all the carrier bull**** that marginalize the great smartphone experience and you get all the coverage and bands that you will need. ****ing sick of this 1% bull****!!
always choose exynos. if you choose the snapdragon, you made a dumb decision
You can't get the exnyos in the US. Even if you order it from Amazon or eBay you don't have warranty and you have to pay full price. Not to mention the that exnyos chip doesn't run games smoothly.
AT&Tsucks said:
You can't get the exnyos in the US. Even if you order it from Amazon or eBay you don't have warranty and you have to pay full price. Not to mention the that exnyos chip doesn't run games smoothly.
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ah, **** there's always a catch!!
Just get whichever region you're from. No point importing a specific SOC, and then risk not having local warranties.
people often ask, why people write crap on the internet - now I know!!
Also half the major us carriers straight up dont work on the exynos.
That being said, if i purchase another samsung device it will be one with an unlocked bootloader. Whether exynos, or a snapdragon from hongkong/china, i dont know. But unlocked or bust
i dont get it, the s6 worked perfectly in the us, and still has great preformance due to the exynos chip, but now we are stuck with the slow 835 on some devices, and samsung wont make a much faster chip just for EU. thanks i guess
partcyborg said:
Also half the major us carriers straight up dont work on the exynos.
That being said, if i purchase another samsung device it will be one with an unlocked bootloader. Whether exynos, or a snapdragon from hongkong/china, i dont know. But unlocked or bust
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Should work on ATT and Tmobile right? Verizon is an issue due to CDMA
BozQ said:
Just get whichever region you're from. No point importing a specific SOC, and then risk not having local warranties.
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If you order from clove they will help you out with warranty, just have to send it back to them and they'll send it to samsung.
Anyone notice a delay in posting? I don't see my post until 5 minutes later.
AT&Tsucks said:
the that exnyos chip doesn't run games smoothly.
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First I've heard of this. Details?
partcyborg said:
Also half the major us carriers straight up dont work on the exynos.
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Click to collapse
Details? I my research into bands showed that AT&T should work just fine except for band 30 which isn't a big deal since it's so new and limited deployment, by the time I see it in my area I'll probably be on a new phone.
I'm not a big gamer - clash royale runs fine on my Exynos S8 and VERY cool too. My Snapdragon S7 got hot as heck with clash royale. Battery life on the Exynos S8 is great from my experience.
sremick said:
First I've heard of this. Details?
Details? I my research into bands showed that AT&T should work just fine except for band 30 which isn't a big deal since it's so new and limited deployment, by the time I see it in my area I'll probably be on a new phone.
Click to expand...
Click to collapse
Half the major us carriers use cdma. Exynos phones do not support cdma at all. At least one major us carrier possesses no gsm frequencies whatsoever, so you can not just use lte only as there is no way to register on the network without a cdma radio. You might be able to use vzw as they are pushing lte hard and i think have a way to register without cdma, but they also lock down what phones they allow on their network, so you may find they just say no altogether
partcyborg said:
Half the major us carriers use cdma. Exynos phones do not support cdma at all. At least one major us carrier possesses no gsm frequencies whatsoever, so you can not just use lte only as there is no way to register on the network without a cdma radio. You might be able to use vzw as they are pushing lte hard and i think have a way to register without cdma, but they also lock down what phones they allow on their network, so you may find they just say no altogether
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I'm on AT&T, so I really don't care that the phone I buy doesn't support CDMA. CMDA sucks in Canada, which I got to several times a month. And the convenience of SIM cards is huge.
sremick said:
I'm on AT&T, so I really don't care that the phone I buy doesn't support CDMA. CMDA sucks in Canada, which I got to several times a month. And the convenience of SIM cards is huge.
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Click to collapse
:good:

unlocking LTE bands in CH version of the note 7

Is it possible to unlock LTE bands in the china version of the note 7 . My country uses 1900,2600 for LTE and I do not seem to get connected to those bands.
Is there any way I can unlock these bands .
Currently I am connection to lte band 41 and switching to h+ .
Good day
So I have tried to unlock lte bands using DFS Tools I was able access the bands to my surprise the bands were selected already . But for some strange reason I cannot see the same bands in network guru for instance DFS shows lte band 2 enables but network guru does not have this band as a lte band
I am not sure but I think it might be hardware restricted?
If I make any progress I will update I will try a custom rom
If it was that simple everyone would just buy chinese version as it is cheaper than global. It involves a LOT OF work, reverse engineering and just blind guesing. For now, it is impossible. There was some cases in older devices that got bands unlocked, but again, it was an immense amount of work and took many devs and a lot of time. Forget it
Plekst said:
If it was that simple everyone would just buy chinese version as it is cheaper than global. It involves a LOT OF work, reverse engineering and just blind guesing. For now, it is impossible. There was some cases in older devices that got bands unlocked, but again, it was an immense amount of work and took many devs and a lot of time. Forget it
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I believe that this is exactly what will happen. Since the Pro doesn't come in a global version and is practically the champion of the cheapest budget phones as of now. Only time will tell.
swipewithout said:
I believe that this is exactly what will happen. Since the Pro doesn't come in a global version and is practically the champion of the cheapest budget phones as of now. Only time will tell.
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Pro isnt a budget phone. Its middle tier, 250euros is not budget, you can buy poco or something else
Plekst said:
Pro isnt a budget phone. Its middle tier, 250euros is not budget, you can buy poco or something else
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Click to collapse
It's 180€ in India and I've even seen prices on AliExpress and such for as low as 167€
swipewithout said:
It's 180€ in India and I've even seen prices on AliExpress and such for as low as 167€
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Lool, give me link for 167, i will buy it right now. Cheapest it ever was is like 220, currently its 230 on aliexpress
Plekst said:
Lool, give me link for 167, i will buy it right now. Cheapest it ever was is like 220, currently its 230 on aliexpress
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Click to collapse
I must've confused it with the standard RN7 on AliExpress but in regards to the price in India, it's still 180€. You can pre-buy at flipkart.com.
Anyways it's still worth the price and I don't think you'll find any other phone as beautiful and packed with power as this one for the same price.
swipewithout said:
I must've confused it with the standard RN7 on AliExpress but in regards to the price in India, it's still 180€. You can pre-buy at flipkart.com.
Anyways it's still worth the price and I don't think you'll find any other phone as beautiful and packed with power as this one for the same price.
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Click to collapse
Well, india is not whole world. People outside india can only get it for 230, which is a lot of for device that doesnt support global bands. So i dont think many people gonna buy it. For 230 in europe you can get pocophone So not budget at all

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