[Q] Xiaomi Redmi Note - Can I unlock WCDMA? - Redmi Note Q&A, Help & Troubleshooting

Hi, I bought a xiaomi redmi note from china and I didn't realise that I'd bought the chinese TD-SCDMA version, the UK network frequency works on WCDMA. The seller gave me a full refund but didnt take the phones back so I'm trying to see if this can work or else iI'm just going to sell them.
Now the network does work but can only got up to 2G.
I've heard that the MediTek hardware supports both TD-SCDMA and WCDMA however the WCDMA may have been locked.
Is there any way of unlocking it?

Theres no unlocking. TD phones have different modem so its a hardware thing. Use your phone as it is (on edge nettwork) ot sell it and bu some other with WCDMA modem in it

Hello ,
I have 2 redmi notes 4g, one TD and one FDD, I noticed that the model writes inside the phone (under the battery) is the same NOTES 4G-TD.
The differences are:
Model: HM NOTES 1LTETD / NOTES HM 1LTEW
Baseband: MPSS.DI.3.0-8fbcbcsa / MPSS.DI.3.0-b5cc3b9
Kernel: 3.4.0-g26e4aff-00547-g924b8ac / 3.4.0-g26e4aff-00528-g48ca70b
So I think it would be necessary to replace the baseband .... but I do not know how to do !!!
Ciao

Related

[Q] N9000 vs. N9005 frequency bands?

On GSMArena, both phones are listed under the same page with these details:
2G Network GSM 850 / 900 / 1800 / 1900 - all models
3G Network HSDPA 850 / 900 / 1900 / 2100 - N9005
4G Network LTE 800 / 850 / 900 / 1800 / 2100 / 2600 - N9005
Which are for the N9000? And which for the N9005?
My carrier is using 900Mhz and 1800Mhz for 2G and 2100Mhz for 3G with no 4G yet. Will the N9005 work fine? I prefer to get a LTE-ready phone because I travel a lot.
-EDIT: My sources can't confirm whether the 900Mhz band is supported for 2G or 3G but it should help with basic reception for phone calls either way.
BullHorn7 said:
On GSMArena, both phones are listed under the same page with these details:
2G Network GSM 850 / 900 / 1800 / 1900 - all models
3G Network HSDPA 850 / 900 / 1900 / 2100 - N9005
4G Network LTE 800 / 850 / 900 / 1800 / 2100 / 2600 - N9005
Which are for the N9000? And which for the N9005?
My carrier is using 900Mhz and 1800Mhz for 2G and 2100Mhz for 3G with no 4G yet. Will the N9005 work fine? I prefer to get a LTE-ready phone because I travel a lot.
-EDIT: My sources can't confirm whether the 900Mhz band is supported for 2G or 3G but it should help with basic reception for phone calls either way.
Click to expand...
Click to collapse
If the phone you are looking at shows 4G bands, then it's N9005. From what you mentioned about the frequencies used by our carrier, the N9005 will work just fine. However, consider the regional lock problem before you buy a grey market device. The phone you buy might be capable of working with your network, but that does not mean it will actually work.
sharl1987 said:
If the phone you are looking at shows 4G bands, then it's N9005. From what you mentioned about the frequencies used by our carrier, the N9005 will work just fine. However, consider the regional lock problem before you buy a grey market device. The phone you buy might be capable of working with your network, but that does not mean it will actually work.
Click to expand...
Click to collapse
Great news, thanks. Yes, Samsung should eat **** and die for their latest stunt. I almost think they've done it purposefully to create a giant wave of free-marketing because there's no such thing as bad publicity.
BullHorn7 said:
Great news, thanks. Yes, Samsung should eat **** and die for their latest stunt. I almost think they've done it purposefully to create a giant wave of free-marketing because there's no such thing as bad publicity.
Click to expand...
Click to collapse
well, you can always use an unlocking service. Many members have tried that method and it worked for them.
sharl1987 said:
If the phone you are looking at shows 4G bands, then it's N9005. From what you mentioned about the frequencies used by our carrier, the N9005 will work just fine. However, consider the regional lock problem before you buy a grey market device. The phone you buy might be capable of working with your network, but that does not mean it will actually work.
Click to expand...
Click to collapse
sharl1987 said:
well, you can always use an unlocking service. Many members have tried that method and it worked for them.
Click to expand...
Click to collapse
Nah. I'm not going to pay extra money to unlock and unlocked sim-free international phone.
Thanks Samsung for helping me save my money by not buying your ****.
I'm looking for help to find:
1) Which MPN firmware version works on bands 1, 3 8 and 20.
2) Where can I download that MPN to flash it to my N9005.
I found out the hard way that the Samsung Galaxy Note 3 LTE/4G N9005, international unlocked model will not necessarily work on the bands which it is compatible with due to a stupid Samsung policy: Samsung locks some bands on their factory unlocked phone!
Absurd and stupid!
sharl1987 said:
If the phone you are looking at shows 4G bands, then it's N9005. From what you mentioned about the frequencies used by our carrier, the N9005 will work just fine. However, consider the regional lock problem before you buy a grey market device. The phone you buy might be capable of working with your network, but that does not mean it will actually work.
Click to expand...
Click to collapse
Yes, you are right!
I discovered that the N9005:
- Comes in a number of different MPN versions (*)
- Each MPN version is locked to certain radios/frequencies (even though the N9005 phone is a factory unlocked phone).
- Up to a maximum of 6 radios can be set per each version.
(*)
ZKEXSI, ZKEBTU, ZWEBTU, ZIEITV, ZKEITV, ZWEITV, ZKEPHE, ZKEDBT, ZWEPHN, ZKEPHN, ZKATGY... just to mention a few.
I flashed the new 4.4.2 Polish OS (XXUENA6, OXXENA5, XXUENA2) on my N90005 to try to unlock the LTE bands that I'm interested in (1, 3 8 and 20) as I have 2 contracts (Vodafone Italy & Softbank Japan) but I found out that my N9005 will not work with these 2 operators, even though it is compatible.
Any help will be greatly appreciated. Thanks.
I've been looking for ways to use my N9005 with Tmobile US but the frequency is different so I don't get and LTE signal. Did you guys find a way if we can add frequencies manually? Or is it really with the hardware?
marloweloy said:
I've been looking for ways to use my N9005 with Tmobile US but the frequency is different so I don't get and LTE signal. Did you guys find a way if we can add frequencies manually? Or is it really with the hardware?
Click to expand...
Click to collapse
I read somewhere this is possible on the Note 2, but it might take a while before someone does it on the Note 3...
xdm9mm said:
I read somewhere this is possible on the Note 2, but it might take a while before someone does it on the Note 3...
Click to expand...
Click to collapse
Oh okay. Thank you. I thought we can try to flash a tmobile modem on N9005 to make it work. But I guess it will ruin my phone.

modem hack for Chinese OPO to enable 3G

I thought I might post this in its own thread as it might save people time when they get their Chinese OPOs and notice WCDMA doesn't work..
For all those who don't know, the Chinese OPO does not support WCDMA/FDDLTE in its stock software configuration. You need to swap out the modem to a hacked modem in order to get the feature to work.
I believe the modem attached was pulled from a Find 7, I've tested it, it works. It has been running pretty well for the last week or so but I'll have to test it over the coming weeks to see how reliable it is. They claim 2G/3G but no 4G. 3G/2G works.
hacked modem
http://pan.baidu.com/s/1bnAeztt (run through google translate)
For further info (google translate required) :
http://www.oneplusbbs.com/thread-304186-1-1.html
can you please explain step by step procedure for same?
so your saying that the chinese and world versions of the opo are the same hardware wise and its just a software modem difference?
Deadpool253 said:
Thanks for the info!
Click to expand...
Click to collapse
I have chinese OPO using on T-Mobile in Hungary. 2G/3G/4G are working out of the box, just for you information.
So for three in the UK the Chinese opo might not work at it's best?
Edit: did some research for myself and it will work fine.
As I saw in one of threads on OPO forums it was explained that chinese version do not support only WCDMA band 4.
According to the wiki (UMTS_frequency_bands) this band is used only by following operators:
North America: USA(T-Mobile US, Cincinnati Bell, i wireless), Canada (Eastlink, Mobilicity, Vidéotron, Wind Mobile)
Latin America: Chile(VTR, Nextel), Colombia(TIGO, Movistar), Uruguay(Ancel), Perú(Movistar, Nextel)
The question is can the modem be flashed to support missing WCDMA band 4?
I just flashed the modem on my Chinese OPO and it works flawlessly with China Unicom's 4G service.
Has anyone tried to flash the CM11S factory image and see if that radio activated the bands? The CM11S factory image includes radio images, and I believe is flashed together as a whole.
Yes. Would like to know if the 1700 and 2100 frequency are activated after flashing the modem.
All-
This is the hacked modem for China OPO that supports China Unicom networks.
I have made cwm zip for easiler install as CM would override the modem during OTA upgrades.
This modem comes from the chinese oneplus forum. See link: http://www.oneplusbbs.com/thread-429139-1-1.html
Code:
http://speedy.sh/ddWNw/OPOHackedModem.zip
I have tried other networks with the modem from the ColorOS or CM rom, seems there is no restriction on WCDMA for other networks.
sasalove said:
All-
This is the hacked modem for China OPO that supports China Unicom networks.
I have made cwm zip for easiler install as CM would override the modem during OTA upgrades.
This modem comes from the chinese oneplus forum. See link: http://www.oneplusbbs.com/thread-429139-1-1.html
Code:
http://speedy.sh/ddWNw/OPOHackedModem.zip
I have tried other networks with the modem from the ColorOS or CM rom, seems there is no restriction on WCDMA for other networks.
Click to expand...
Click to collapse
A few things,..
1. I've been lead to believe from various sources that the Intl. and Chinese versions of the OPO are in fact almost identical hardware wise.
see: http://www.gizchina.com/2014/06/12/differences-international-chinese-oneplus-one/
2. I don't have a 4G subscription in China so I cannot confirm whether or not it works with this modem hack.
3. I bought my Chinese OPO from a reseller here in China on Taobao. When I received it I immediately flashed it over to CM11s and subsequently had no 3g (I use WCDMA network China Unicom FYI) for a few days until I found the hacked modem on the Chinese OPO forums. As for those of you who are not in China, I've heard that many Int. resellers will complete this process for you so you won't need to do any flashing yourself, but I can't generalise for all of the sellers out there.
4. I cannot confirm is whether or not this is only some kind of restriction for Chinese wcdma networks (China unicom). I haven't as yet taken my OPO out of this country and tried an international sim card so that is yet to be determined.
ThExSenatoR> I'm curious about your phone configuration perhaps you could post which modem version you use printed from the about screen??
sasalove> are you saying that the Chinese OPO will work outside of China on other wcdma networks but will not work inside China on China Unicom with the stock modems from coloros and CM?
can anybody who uses China unicom on 4g confirm which modem you use and if you also had to flash a different modem in order to access the service?
With some testing, I'm quite confident to conclude the restriction for 3G is on China Unicom only. I got my CMHK and one2free sim to confirm it. I can use 3G and 4G without issue in HK.
I occasionally travel to mainland and I got both China Mobile and China Unicom 3G sim. Only the hacked modem got China Unicom 3G and meanwhile the CM modem cannot connect to the TD-SCDMA for China Mobile.
I'm still waiting for my 4G China Mobile to test TD-LTE...
So in any case, I decide to flash this hacked modem, as it seem to work for all to date...
---------- Post added at 01:56 PM ---------- Previous post was at 01:38 PM ----------
If anyone got some time to test out the difference in modem versions as well as for rolling back, here you go!
Code:
http://speedy.sh/3DuFz/CMModem.zip
Code:
http://speedy.sh/DvQpu/ColorOSModem.zip
Code:
http://speedy.sh/ddWNw/OPOHackedModem.zip
Verizon?
Will this work on Verizon? CDMA bands 4 and 13, 3g.
Thanks!
shwise said:
Will this work on Verizon? CDMA bands 4 and 13, 3g.
Thanks!
Click to expand...
Click to collapse
The modem that come with CM11 should have WCDMA band 4 (1700 MHz) and should also have LTE band 4 (1700 MHz) and band 17 (700b MHz). According to the spec, the difference is supporting TD-SCDMA band 34 (2010-2025 MHz) / TD-LTE for band 39 (1900 MHz) for China. Other than that the spec matches both side.
Therefore, if anyone need band 4 and band 17, they should use the modem that come with CM11 which lack in the Chinese modems.
Connectivity [CM]
GSM: 850, 900, 1800, 1900MHz
WCDMA: Bands: 1/2/4/5/8
LTE: Bands: 1/3/4/7/17/38/40
Connectivity [ColorOS]
GSM:850 / 900 / 1800 / 1900
TD-SCDMA:1880-1920 (39) / 2010-2025 (34)
WCDMA*:2100 (1) / 1900 (2) / 850 (5) / 900 (8)
TD-LTE:2570-2620 (38) / 1880-1920 (39) / 2300-2400 (40)
FDD-LTE*:2100 (1) / 1800 (3) / 2600 (7)
sasalove said:
With some testing, I'm quite confident to conclude the restriction for 3G is on China Unicom only. I got my CMHK and one2free sim to confirm it. I can use 3G and 4G without issue in HK.
I occasionally travel to mainland and I got both China Mobile and China Unicom 3G sim. Only the hacked modem got China Unicom 3G and meanwhile the CM modem cannot connect to the TD-SCDMA for China Mobile.
I'm still waiting for my 4G China Mobile to test TD-LTE...
So in any case, I decide to flash this hacked modem, as it seem to work for all to date...
---------- Post added at 01:56 PM ---------- Previous post was at 01:38 PM ----------
If anyone got some time to test out the difference in modem versions as well as for rolling back, here you go!
Code:
http://speedy.sh/3DuFz/CMModem.zip
Code:
http://speedy.sh/DvQpu/ColorOSModem.zip
Code:
http://speedy.sh/ddWNw/OPOHackedModem.zip
Click to expand...
Click to collapse
Thanks mate for clearing that up for me! So it seems that this restriction is only for China Unicom, why might that be I wonder? to my knowledge, It's not like the Chinese OPO's are being sold by China mobile directly...
I'd still like to test out 4G for China Unicom but I would like to find a cheap deal to do it. I can never seem to fully understand the mobile plans in China anybody got any suggestions as to how I might find a plan with a decent amount of data (at least 300mb) for less than 100yuan a month ??
sasalove said:
The modem that come with CM11 should have WCDMA band 4 (1700 MHz) and should also have LTE band 4 (1700 MHz) and band 17 (700b MHz). According to the spec, the difference is supporting TD-SCDMA band 34 (2010-2025 MHz) / TD-LTE for band 39 (1900 MHz) for China. Other than that the spec matches both side.
Therefore, if anyone need band 4 and band 17, they should use the modem that come with CM11 which lack in the Chinese modems.
Connectivity [CM]
GSM: 850, 900, 1800, 1900MHz
WCDMA: Bands: 1/2/4/5/8
LTE: Bands: 1/3/4/7/17/38/40
Connectivity [ColorOS]
GSM:850 / 900 / 1800 / 1900
TD-SCDMA:1880-1920 (39) / 2010-2025 (34)
WCDMA*:2100 (1) / 1900 (2) / 850 (5) / 900 (8)
TD-LTE:2570-2620 (38) / 1880-1920 (39) / 2300-2400 (40)
FDD-LTE*:2100 (1) / 1800 (3) / 2600 (7)
Click to expand...
Click to collapse
Are we certain that the Chinese OPO has the EXACT SAME hardware as the international OPO sold by One plus?
I remember reading people claiming either side.
Just want to make sure that they indeed have the exact same hardware ie. Radio/modem and just need to have different ROM/modem firmware flashed to enable different bands ie. Band 4 (1700) in my case.
There is a newer hacked modem available. The author states the modem is based on CM12S while supporting all 3G/4G in China. Another user claims to test all of the network modes.
Original Link: http://www.oneplusbbs.com/thread-392257-1-3.html
User confirming all network modes: http://www.miui.com/thread-1832939-1-1.html
Code:
http://speedy.sh/vnvZQ/CMHackModem.zip
:good:
dhaub said:
A few things,..
1. I've been lead to believe from various sources that the Intl. and Chinese versions of the OPO are in fact almost identical hardware wise.
see: http://www.gizchina.com/2014/06/12/differences-international-chinese-oneplus-one/
2. I don't have a 4G subscription in China so I cannot confirm whether or not it works with this modem hack.
3. I bought my Chinese OPO from a reseller here in China on Taobao. When I received it I immediately flashed it over to CM11s and subsequently had no 3g (I use WCDMA network China Unicom FYI) for a few days until I found the hacked modem on the Chinese OPO forums. As for those of you who are not in China, I've heard that many Int. resellers will complete this process for you so you won't need to do any flashing yourself, but I can't generalise for all of the sellers out there.
4. I cannot confirm is whether or not this is only some kind of restriction for Chinese wcdma networks (China unicom). I haven't as yet taken my OPO out of this country and tried an international sim card so that is yet to be determined.
ThExSenatoR> I'm curious about your phone configuration perhaps you could post which modem version you use printed from the about screen??
sasalove> are you saying that the Chinese OPO will work outside of China on other wcdma networks but will not work inside China on China Unicom with the stock modems from coloros and CM?
can anybody who uses China unicom on 4g confirm which modem you use and if you also had to flash a different modem in order to access the service?
Click to expand...
Click to collapse
I can confirm China Unicom 4g is working with the hacked modem.
sasalove said:
There is a newer hacked modem available. The author states the modem is based on CM12S while supporting all 3G/4G in China. Another user claims to test all of the network modes.
Original Link: http://www.oneplusbbs.com/thread-392257-1-3.html
User confirming all network modes: http://www.miui.com/thread-1832939-1-1.html
Code:
http://speedy.sh/vnvZQ/CMHackModem.zip
:good:
Click to expand...
Click to collapse
Cheers mate! On another note, can anyone confirm what their wifi/cellular peformance is like with either the original or hacked modems? Since I've pretty much only used the hacked modem (the one I posted at the start of the thread), I can add that performance wise, it's significantly worse than my computer and old iPhone 5 when using the wifi from my bedroom. Where I sit in my bedroom I get consistent full reception on my computer and used to get the same on my iPhone 5, on my OPO I get 1 or 2 bars at most irrespective of whether or not I use 2.4ghz or 5ghz...
Anyone else experience similar?

[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
Click to expand...
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

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.

chinese version vs global version

I got a question . I am from Romania and i bought the chinese 6/64 version of Redmi Note 7. Will the 4G work in Romania? My network provider is Orange. How can i check this info?
Are the chinese and global version same when it comes to supported 4G bands?
And the second question is if you can install the global rom on a chinese version of Redmi note 7? Will the B20 for 4G be automatically unlocked when installing the global rom? Those accepted 4G bands are a software or hardware thing ?
Thanks in advance.
vendetta17 said:
I got a question . I am from Romania and i bought the chinese 6/64 version of Redmi Note 7. Will the 4G work in Romania? My network provider is Orange. How can i check this info?
Are the chinese and global version same when it comes to supported 4G bands?
And the second question is if you can install the global rom on a chinese version of Redmi note 7? Will the B20 for 4G be automatically unlocked when installing the global rom? Those accepted 4G bands are a software or hardware thing ?
Thanks in advance.
Click to expand...
Click to collapse
check this out mate, it says here that the Chinese RN7 with LTE band B3 and B7 will work on Orange Network.. here's the link if you need all the info's regarding RN7 technical specs and comparisons. just navigate with the page and you'll find your answers:
https://www.kimovil.com/en/where-to-buy-xiaomi-redmi-note-7-4gb-64gb
B20 is available to Global version but not in Chinese variant..
Unfortunately, changing ROM won't change the modem ability to connect a band that it is not designed to manage. So, yes it is a hardware issue. The modem of the CN version of the Redmi Note 7 is probably able to manage the B20 technically speaking, but it doesn't have the proper embed instructions to do so. I have read some posts about flashing the modem. It is sometimes possible (when there is no hardware limitation), but honnestly, it is not something you can envisage to do by yourself right now, and until someone with good skills does it and share the method (if someone decides to challenge this someday...). The instructions are coming under binary codes. This is a real quest!
Buying a cellphone that doesn't manage the B20/800MHz in Europe is really a bad idea. B20 is the golden band in Europe, since this frequency allows the most performing penetration indoor, and offers the best distance range (about 15 km around the antenna communicationg on B20/800MHz versus barely 5 km around an antenna communicating on B7/2600 MHz). While using your phone in big cities, you will probably catch a B7/2600MHz or a B3/1800MHz signal on your network. But globally your experience won't be good. In many places where your friends using the same network will have a good signal, you will sometimes have a low signal or just no signal (or a switch to the 3G network). For example, when I check my LTE info right now, in a very dense area (Paris, where my network operates from B3, B7 and B20 antennas), my phone is connected on the B20. For sure, if my phone didn't manage the B20, it would connect alternatively to another available band. But if it "chooses" the B20, it means it's the best signal, so.... And now, imagine when you go to the countryside, where there are lessa ntennas, without being able to connect the antennas running the long distance range frequency... This can't be better.
Good luck, though.

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