Redmi Note 2 TDD to FDD installing custom firmware - Redmi Note 2 General

Hello, I found on Aliexpress some seller that claim that installing a custom firmware is possible to unlock all the LTE bands supported by Redmi Note 2, does anyone has experience about that?
Buying a Redmi Note 2 TDD which firmware should I install to unlock 4G LTE 1800mhz 2100mhz and 2600mhz bands ?

You can install without problems a Xiaomi.eu weekly. The base is from FDD firmware so you won't have problems

james3Italy said:
Hello, I found on Aliexpress some seller that claim that installing a custom firmware is possible to unlock all the LTE bands supported by Redmi Note 2, does anyone has experience about that?
Buying a Redmi Note 2 TDD which firmware should I install to unlock 4G LTE 1800mhz 2100mhz and 2600mhz bands ?
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I'd like to know if this is possible myself. I bought the Redmi Note 2 from gearbest. I live in the US. Even though the info says it's for worldwide use, it's not. I can only get 2G on this phone through all US carriers. This phone has LTE bands 1, 3, 7, 38, 39, 40, 41, enabled and that's it. I guess it's good for everywhere else besides the US for 3G and 4G.

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Unlock the LTE lock adout N9005 in CHINA?

I buy a Europe N9005 via Gray way, but I cann,t use LTE of CHINA UNICOM LTE inCHINA WUHAN
anybody could help me ?
i only know xda is a brilliant rorum:highfive: i hope i can solve my problem
So, did you check the provider's LTE frequency band against the ones the N9005 supports?
Because there's a 99.99% chance the two don't match. Which XDA can't fix. (We wish!)
Sent from my SM-N9005 using Tapatalk 2
ShadowLea said:
So, did you check the provider's LTE frequency band against the ones the N9005 supports?
Because there's a 99.99% chance the two don't match. Which XDA can't fix. (We wish!)
Sent from my SM-N9005 using Tapatalk 2
Click to expand...
Click to collapse
:crying::crying:
MY Europe 9005 (32G) said it support LTEB1 B3 B5 B7 B8 B20 ALL
LTE of China Unicom is Band 1 /Band3 ,I think it should be supported. AND the 9005 of Hong kong, it could use in CHINA UNICOM'S LTE,
the 9005(TGY,16G) should be same with 9005(EUR,32G) in hardware
And many of Europe N9005 the IMEI will change if you flash new rom with odin ,IMEI will become 35750705000888 ,many people suffer that.
So i guess Samsung Lock the LTE because of religion place restrictions ,i guess
CHINA UNICOM said its TD-LTE is false, because goverment force them to use TDD-LTE , a lot of cities use FDD -LTE in fact .
CHINA UNICOM use TD-LTE band 41, FDD-LTE band 1 ,band 3 even band 7
So, what's the current situation in China ? I am at the same position; unlocked international version of Samsung Galaxy Note 3 (SM-N9005) and want to use it in China. Mysteriously, 4G seemed to work (??) with a China Mobile sim card when I tried in a mobile shop but sadly I didn't have the time or access to make sure and do comprehensive tests. I thought TDD-LTE was not supposed to be compatible. Could China Mobile have FDD-LTE in my region (Henan) ?

[Q] How to check 4G capability on Redmi Note 4G?

Hi
I have Xiaomi Note 4G (China Unicom version) but I am unable to use it on FDD1800 band on Zong 4G network in Pakistan. I have a 4G SIM that works perfectly with my LG G2 D802 and Huawei E5375 (CMCC).
On the box its written both LTE TDD and FDD and it does show 1800 band but when I force it to LTE-Only using Phone Testing menu (*#*#4636#*#*), it goes to no service.
Is there a way I can test the phones capability regarding LTE FDD1800?
Thank you in advance for your help.
Regards,
Shoaib
shoaib.hadi said:
Hi
I have Xiaomi Note 4G (China Unicom version) but I am unable to use it on FDD1800 band on Zong 4G network in Pakistan. I have a 4G SIM that works perfectly with my LG G2 D802 and Huawei E5375 (CMCC).
On the box its written both LTE TDD and FDD and it does show 1800 band but when I force it to LTE-Only using Phone Testing menu (*#*#4636#*#*), it goes to no service.
Is there a way I can test the phones capability regarding LTE FDD1800?
Thank you in advance for your help.
Regards,
Shoaib
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Click to collapse
I just got my redmi note 4g yesterday, And as ar as I can see, in the Upper left corner it writes "Carriername 4g". So that should indicate if it works.
Diferent version of redmi note 4g?
hello,
I'm thinking of buying the terminal , but I have a doubt
Viewing Page Xiaomi singapore , hongkong and taiwan offering a 4G LTE version band frequencies LTE 1, 2, 3, 4 and 7 , but I see in different Chinese pages to buy it appears redmi note 4G LTE but only with frequencies LTE 1800/2100 .
Anyone know if there are two LTE versions as might ensure you have the frequencies that advertise in singapore, hongkong etc.
Thank you .
there are 2 versions of the phone. One that is domestic China 4G and then there is the export version that supports FDD-LTE/WCDMA/GSM. I am running a 4G version in Hong Kong and its fast. Not a huge diff from my Sammy Note 3. For the price its like giving it away. Only thing now is how reliable it is. Sammy is super reliable.
digi051669 said:
there are 2 versions of the phone. One that is domestic China 4G and then there is the export version that supports FDD-LTE/WCDMA/GSM. I am running a 4G version in Hong Kong and its fast. Not a huge diff from my Sammy Note 3. For the price its like giving it away. Only thing now is how reliable it is. Sammy is super reliable.
Click to expand...
Click to collapse
Where can I purchase this Hong Kong version online? Please help me out

[Q] Which version of Samsung Note 4 phone is a better buy?

Hello,
I'm trying to make sense of the LTE frequencies, so maybe you can help.
The situation: I'd like to buy the phone and use it on AT&T LTE in the US, but -- very important -- also use it for data when traveling outside the US. Also, I'd like the ability switch providers in the US (that's why I'm not buying a subsidized phone from AT&T).
The question: The Note 4 model SM-N910W8 has more LTE frequencies than the model SM-N910A. I assume it means that the SM-N910W8 is more likely to perform well in foreign countries and on other US carriers. If so, that's a better purchase than AT&T model of the phone (SM-N910A). Is this correct?
The data:
According to GSM Arena, the "North American" model SM-N910W8 supports
LTE 700 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17)
According to Samsung website, the specialized AT&T version of the phone SM-N910A supports
2G GSM : 850/900/1800/1900;
3G WCDMA : Band I/Band II/Band V;
4G (LTE Cat 4 150/50Mbps) : B2 / B4 / B5 / B12 / B17
(the system won't allow me to provide links to the data sources, but PM me if you'd like them)
I was also confused about all the band stuff. I am on AT&T myself and I just purchased a note 4 sm-n910c. it is the exynos version (some people don't want that) but it supposedly works great with AT&T lte. The phone arrives on Wednesday soo I personally don't know. But I did alot of research before purchasing.
My current att branded note edge (i assume same as note 4) supports
4G FDD LTE: B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B17(700), B20(800);
And the 910c supports:
LTE 800 / 700 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600
(Bands 1, 2, 3, 4, 5, 7, 8, 17, 20)
You may also want to look into the sm-n910u
Thanks! So according to the source below, a "band" is simply a range of radio frequencies. That's why there's an overlap between "radio frequencies" and "LTE bands".
radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/lte-frequency-spectrum.php
My impression is that the more frequencies a device has, the better it performs across carriers, when roaming. And of course, any carrier is better off selling a device that's customized to its own network, thereby making switching carriers more difficult. I guess that this is why the AT&T model has fewer frequencies than the non-AT&T model.
By the way, the seller of the SM-N910W8 assured me that the device is capable of the same LTE speeds at a SM-N910A.
Right every carrier uses specific bands of frequency. Some work on multiple carries. For instance the t-mobile note 4 work on ATT network.
I don't know much about the 910w8 but yes the more bands it supports the more universal it will be across carriers. Of course GSM phones will not work on CDMA networks like version and sprint
Craleb said:
Right every carrier uses specific bands of frequency. Some work on multiple carries.
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Click to collapse
That's right. And my hunch is that carriers limit their branded phones (the subsidized phones they sell). This way, the phone will perform best only on their network. At least in the case of AT&T, I can't find another explantion why their branded phone (SM-N910A) supports fewer bands than a non-AT&T branded phone (like the SM-N910W8).
Does iPhone have these restrictions... Just curious
magichoward said:
Does iPhone have these restrictions... Just curious
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Click to collapse
Yes, the iPhone is also frequency restricted. Manufacturers do it to help carriers (which are their big customers, not us retail customers). Carriers use the frequency restrictions to curb cross-border sales and limit your ability to switch to a competitor, even if you paid for your device.
Iphone 6 A1522 (GSM)
LTE (band 1, 2, 3, 4, 5, 7, 8, 13, 17, 18, 19, 20, 25, 26, 28, 29)
Iphone 6 A1524 (CDMA):
FDD-LTE (band 1, 2, 3, 4, 5, 7, 8, 13, 17, 18, 19, 20, 25, 26, 28, 29)
TD-LTE (band 38, 39, 40, 41)
(I found the data in "Galaxy Note4 Firmware - All Models")
The version that ends in W8 is the Latin American version. The T-Mobile version is compatible with most bands.
Att has locked boot loader, as well as vzw. If your into rooting and flashing custom Roms, stay away from those phone's.
jaxenroth said:
Att has locked boot loader, as well as vzw
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Click to collapse
Thanks! I didn't know that. So now the AT&T version (SM-N910A) is definitely off the table. It's down to two models. Both will support all of AT&T LTE bands, but one adds full support for European LTE and the other adds full support for T-Mobile US.
SM-N910C, which has Exynos CPU and supports 800 Mhz and 4G band 20, which one of the three bands common in Europe.
SM-N910W8, which has Snapdragon CPU and supports 4G band 12, which means full support for T-Mobile 4G.
arjun90 said:
The version that ends in W8 is the Latin American version. The T-Mobile version is compatible with most bands.
Click to expand...
Click to collapse
Yes, the T-Mobile version (which I see is the one you one) has the same bands as the 910W8 and the same CPU. The advantage (for me) is that I can buy it from T-Mobile and receive warranty.
The T-Mobile version is the appropriate one for you, especially since you will receive warranty from Samsung USA.
NYCgirl said:
Yes, the T-Mobile version (which I see is the one you one) has the same bands as the 910W8 and the same CPU. The advantage (for me) is that I can buy it from T-Mobile and receive warranty.
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Redmi 3s with lte?

So there is a version of the Redmi 3s and 3s prime that is sold in Mexico that supports 4g lte (called only 4g in here)...
I was wondering, does it have different hardware? Or were the antennas for mexican 4g already there and activated via software?
I'm really confused on the subject and can't find any info as to why some xiaomi phones work with mexican 4g(Which uses some bands that are also used in the us).
I'm considering buying this or the 4 prime and was wondering if there could be a way to activate global lte on the 4 primer later on.
I was also wondering if I NEED to buy the phone in here to be able to use the 4g or if I might be able to pick up a phone from aliexpress and have 4g too.
Hope someone can help me with this info
The hardware is different but you can also get the LTE (4G) version for Mexico on Ali Express.
In Mexico you use LTE band 2 (Movistar: 1900 MHz) and 4 (AT&T,TelCel: 1700 MHz). So when you want to buy a Redmi 3S on Ali, make sure you buy the Xiaomi Redmi 3S Special Edition. It supports the LTE bands needed in your country.
!!
Thanks! =)
I was reading on sites that list the specs of the device but couldn't find anywhere that said that it supported lte bands 2 and 4 so I was quite confused. Thanks a lot.

Does SM-G950 / SM-G950U1 (US Unlocked) support TDD LTE Band 40 (2300MHz)?

I bought an SM-G950U1 (US Unlocked) from Best Buy. Does any one know if it supports TDD LTE Band 40 (2300 MHz)?
There is conflicting information on this! Answers given in various specs vary as follows:
YES (it supports LTE Band 40) --- according to specs given by sellers like Best Buy, B&H, and many online sites like gsmarena, phonearena, frequencycheck.com, etc.
NO (does not support LTE Band 40) --- according to the Samsung support person I talked to over the phone. Also, the FCC filings for SM-G950U do not list TDD LTE Band 40 (they have only one TDD band listed, Band 41, presumably for Sprint). On the other hand, although TDD LTE Band 41 is actually known to work with the SM-G950U1, the official Samsung SM-G950U webpage does not list any TDD band at all, not even Band 41 (it lists only FDD LTE bands).
https://www.samsung.com/us/mobile/phones/galaxy-s/galaxy-s8-64gb--unlocked--sm-g950uzkaxaa
Does anyone know the real answer here? Has anyone actually tested the SM-G950U1 for Band 40 support in a suitable country (Peru, South Africa, India, Australia)?
adg2012 said:
I bought an SM-G950U1 (US Unlocked) from Best Buy. Does any one know if it supports TDD LTE Band 40 (2300 MHz)?
There is conflicting information on this! Answers given in various specs vary as follows:
YES (it supports LTE Band 40) --- according to specs given by sellers like Best Buy, B&H, and many online sites like gsmarena, phonearena, frequencycheck.com, etc.
NO (does not support LTE Band 40) --- according to the Samsung support person I talked to over the phone. Also, the FCC filings for SM-G950U do not list TDD LTE Band 40 (they have only one TDD band listed, Band 41, presumably for Sprint). On the other hand, although TDD LTE Band 41 is actually known to work with the SM-G950U1, the official Samsung SM-G950U webpage does not list any TDD band at all, not even Band 41 (it lists only FDD LTE bands).
https://www.samsung.com/us/mobile/phones/galaxy-s/galaxy-s8-64gb--unlocked--sm-g950uzkaxaa
Does anyone know the real answer here? Has anyone actually tested the SM-G950U1 for Band 40 support in a suitable country (Peru, South Africa, India, Australia)?
Click to expand...
Click to collapse
I don't have a carrier that would have Band 40, but here is the thread which lists all bands for different versions of S8. You can try asking there as well.
https://forum.xda-developers.com/galaxy-s8/how-to/samsung-galaxy-s8-compare-network-t3597705
Thanks. I have posted to the thread you mentioned. It is surprisingly hard to find the answer to such a simple question for such a flagship device!
adg2012 said:
Thanks. I have posted to the thread you mentioned. It is surprisingly hard to find the answer to such a simple question for such a flagship device!
Click to expand...
Click to collapse
Band 40 LTE is there. Open phone and dial *#2263# and it will list all bands active in the phone, including 40. It is in mine.
Thanks Danny Noman! The *#2263# code did work and showed Band 40. Wonderful!
One question: The *#*#4636#*#* info menu does not seem to work on the S8 (works on many other android phones). Any idea what might be an equivalent for the S8?

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