yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi 5 Guides, News, & Discussion] chief13:
lol .

why dont you Go to a xiaomi's Chinese forum then....?

off topic p.s-> off topic: why Chinese youtubers always use english titles when they upload a video to youtube and after they use to speak Chinese... ??I hate that...

Does He expect us to speak Chinese because the topic is for Xiaomi phone?
[Xiaomi Mi 5 Guides, News, & Discussion] njeri123:
Please don't spam. Many people have push notification on this thread and many people try hard to find a solution for that problem. Thank you.

Gesendet von meinem E5823 mit Tapatalk
[Xiaomi Mi 5 Guides, News, & Discussion] fabioplata:
I made all this, use a apk to see the available lte bands and appear band 4 and others but dont Connect to lte? I miss something?

I need this bands

FDD-LTE: Bands 1/2/4/5/7/12/17/30

I use this number 2061719111903
[Xiaomi Mi 5 Guides, News, & Discussion] zzuurraa:
What someone with Mi Note 2 should to do to help with the B20 progress?
[Xiaomi Mi 5 Guides, News, & Discussion] QTeknology:
nv_rf_hw_config_i
[Xiaomi Mi 5 Guides, News, & Discussion] greasymonkey1960:
Good Question.......

It has not looked at it very closely, as we are not changing the HW configuration.

Do you have any insights into this value?

The current set value is "220" (dec), any ideas as to how to decode this?

My immediate thought is that the MSB is a "generation" ID, given that the RF devices are basically a thrird-generation set (Qualcomm RF360 devices), with MIPI control interfaces, etc. This would also support the use of the V3 calibration method used by these devices, as seen by the datafill.

The second and third numbers I can only guess at

Any feedback or information would be greatly appreciated.
[Xiaomi Mi 5 Guides, News, & Discussion] zzuurraa:
What if Mi5's hardware does not support 800mhz transmissions?
[Xiaomi Mi 5 Guides, News, & Discussion] greasymonkey1960:
The transceiver (TRX) is the Qualcomm WTR3925, it is used in many devices which support down to 700MHz, also the Mi5 uses Band 17 as one of the basic calibration frequencies, which is 700 MHz.

The power amplifier (PA) is the Skyworks 77646-51, which definitely supports B28 (700MHz) and B20 (800MHz), and is used widely used in other devices that support these lower frequency bands.

The supporting RF devices used also are used in other phones which operate on 700 and 800MHz bands.
[Xiaomi Mi 5 Guides, News, & Discussion] zzuurraa:
http://en.miui.com/thread-304198-1-1.html They managed to make B20 work on Redmi note 3 by flashing Radio only from international version, so maybe the case is in the ROM itself?
[Xiaomi Mi 5 Guides, News, & Discussion] greasymonkey1960:
No, it is not working, all he managed to do was to get a better signal from the existing B3 or B7 channels that are available.

What was posted is wrong, so don't be fooled by it.

There is all the configuration and setup data for the TX, RX, PA and LNA that is held in the NVRAM, and that is not flashed as part of non-HLOS.bin, which is only the modem, i.e. baseband.

The modem is only for taking the voice or data traffic, and changing it to I & Q modulation streams for either GSM, CDMA, WCDMA, TSCDMA or LTE - it has NOTHING to do with the RF parts of the phone.

---------- Post added at 03:21 AM ---------- Previous post was at 03:16 AM ----------

There is very little that can be done using the Mi Note 2, as the RF components are different, and the major challenge is finding/developing the calibration curves and parameters for optimising the performance of the RF devices in the Mi5.
[Xiaomi Mi 5 Guides, News, & Discussion] greasymonkey1960:
The number you quote will "enable" more than you require above - it will enable 1/2/3/4/5/7/8/12/17/20/28/38/39/40/41

Just because they are enabled using NVRAM 6828 does NOT mean they are set up to work. There are all the RF parameters for the Tx, RX, PA and LNA that need to be configured for the bands excepting those that are officially supported, being 1/3/7/38/39/40/41.

Just because your APK can read that the bands are set in the LTE Preferred Bands list does NOT mean they will work.
[Xiaomi Mi 5 Guides, News, & Discussion] fabioplata:
Ok, but its possible? What can I need change? I need band 4.
[Xiaomi Mi 5 Guides, News, & Discussion] greasymonkey1960:
As the title of the thread says "Work in Progress".....

It is not yet known definitively whether it will work or not, the things being done here are experimental.

If you need Band 4 for LTE, I would suggest that you buy a phone that supports it "out-of-the-box".
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
I remember when I mounted non-hlos.bin that there are files in there for each band except for B20. So, if we do not add the B20 file, it won't work because it won't be able to modulate the streams that come throuhg B20? Is that possible ?
[Xiaomi Mi 5 Guides, News, & Discussion] tndb:
Yeah im pretty sure from my brief understanding that the files in non-hlos is "calibration-data" and I cant see how it would work without those. Thats why I think its easier to break this "barrier" on the lenovo zuk z2 which can use the zuk2 pro modem (non-hlos.bin) that has b20 already and then its just figuring out the last barrier. There might be a hardware lock on the zuk z2 though so its not totally certain that we should use that as the only option but it feels logically easier. The mi5 shouldnt have any hardware lock since you can unlock band8 relatively easily + b8 files exist already in non-hlos.bin and in the nvram part.

(Im not stating this as fact btw but merely my logic guesses)
[Xiaomi Mi 5 Guides, News, & Discussion] DanielD99:
Am I reading this correctly that a true unlock of bands other than B20 (e.g. B4), may be possible/easier?
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
Yes, as fewer calibration data are missing and seems that non-hlos.bin is complete.
[Xiaomi Mi 5 Guides, News, & Discussion] djmajino:
I have a qeustion.. maybe a stupid one, but still .. What would happen if non-hlos.bin from Mi5 would be replaced by non-hlos.bin from MiNote2, which has Band 20 already functional? I know there is newer hw, which is QS 821, but there is not much differnce, or is there? I am trying little bit to understand the basics
[Xiaomi Mi 5 Guides, News, & Discussion] efferre:
I think snapdragon 820 and 821 are already different and probably need different firmware versions.

But actually I was thinking the same, I mean taking the firmware from another smartphone (e.g. the Zuk Z2 Pro) with the same processor. The baseband firmware should depend only on the processor and not on the effective radio part which is driven using the calibration data stored in the NV memory.

Any thought?
[Xiaomi Mi 5 Guides, News, & Discussion] greasymonkey1960:
The baseband interaction with the RF device is a critical interface, the Digital Pre-Distortion is stored in the NVRAM - this is applied to the output of the modem and grossly impacts the TRX performance.

If you change the modem software, there is a very high risk that you would cause significant performance loss, to all bands.
[Xiaomi Mi 5 Guides, News, & Discussion] efferre:
Now just a few considerations/guesses about the reason I think the modem firmware itself is not changing, it's only adapting its behaviour given the NVRAM values (i..e the binary code stays the same).

The modem is provided by Qualcomm and I hope doesn't change with the RF part, so basically the smartphone producer can only tune the NVRAM data to match a fixed modem to the chosen RF part. If that is not the case than Qualcomm has to adapt the modem part to the RF part chosen by the producer and iterate this for every combination. The modem firmware source is the real valuable part and I don't think it's given out to the producers, even with a NdA agreement.
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
Well, this is a good point and would explain why the Z2 Pro modem works in the Z2, which apparently has different hardware QM58101 vs WTR3925.
[Xiaomi Mi 5 Guides, News, & Discussion] QTeknology:
I tried z2 modem on z2pro and.....

I lost sensors and telephony...
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
it does not make a lot of sense... compatibility should be both ways. If non-hlos.bin of Z2Pro can be used in Z2, it should also work the other way round.

http://zukfans.eu/community/threads/how-to-enable-lte-band-20.427/page-2#post-8009
[Xiaomi Mi 5 Guides, News, & Discussion] djmajino:
I don't know if I help, but I found that Galaxy S7 edge has Qualcomm Snapdragon 820 as CPU and WTR3925 as RF transciever == that's the same as Xiaomi Mi 5... but the Power Amp module is (if i'm right) some Avago AFEM-9040..

SKY77646 is used in Samsung Galaxy Note 4 (fe N910f) but has not the same CPU and RF :(

does it help somehow?
[Xiaomi Mi 5 Guides, News, & Discussion] greasymonkey1960:
Thanks.

Any information regarding the hardware is always useful, and in this case, it shows that the WTR3925 is pretty much the top-flight TRX device on the market at present (Samsung Galaxy S7, iPhone 6 & 7, etc).

The 77646 is also a widely used device, so it is not like we are dealing with small-scale esoteric device manufacturers, but rather the high-end mainstream devices.

EDIT:

I was just going through a teardown of of the Xiaomi Mi Note 2 (all international bands), and it uses the same TRX and PA devices as the Mi5, so the limitation of the Mi5 is not in the hardware components, at least not the WTR3925 and SKY77646.

Now we need a cashed-up person to buy one and get the non-HLOS.bin and the EFS uploaded for comparison :)

Cheers,

GM
[Xiaomi Mi 5 Guides, News, & Discussion] tndb:
This is good news since it brings us a bit closer to the goal! Im trying to find firmware files for the phone but its so d.amn new still.

There are 2 models of it

Mi note 2 (no band 20, just the regular bands as mi5 has)

Mi note 2 Pro (this is the one we want firmware from since it supports a hefty slew of bands)

We can grab the non-hlos.bin from the firmware but need the actual phone to extract the EFS data

Ps. Dont confuse it with the redmi note 2 models as they are not similar at all in this area.
[Xiaomi Mi 5 Guides, News, & Discussion] djmajino:
yeap.. Thats right.. there is even two versions of PRO .. Pro and Pro GLOBAL... but as far as I know, the is only pre-sale yet. it starts selling at the end of December

http://www.xiaomidevice.com/xiaomi-mi-note-2-pro.html
[Xiaomi Mi 5 Guides, News, & Discussion] Fortinho:
That's not an official site, so don't base selling dates on it.
[Xiaomi Mi 5 Guides, News, & Discussion] sweetbam:
Has anyone been able to successfully unlock band 13 yet for Verizon lte in the US? Only thing keeping me from purchasing the phone.
[Xiaomi Mi 5 Guides, News, & Discussion] chan200606:
Please excuse me for asking a dumb question: does the region setting do anything to the modem/bands?

Reason for asking: my new Mi 5 came with the global developer rom which doesn't have Australia in its list of regions. I initially chose US thinking that it might give me a "cleaner" English environment. However, apart from the phone kept changing my time zone to GMT-6, I found the phone not locking onto 4g/LTE too well. I then changed the region to Taiwan, which is closer and uses similar 4g bands as Australia. Apart from the default time zone now closer, LTE now works smoothly. This leads me to wonder if this setting also involves some programming of the modem. Has someone looked at what this region setting actually does?
[Xiaomi Mi 5 Guides, News, & Discussion] greasymonkey1960:
There is set of files in non-HLOS.bin (LTE Modem), Z:\image\modem_pr\mcfg\configs\mcfg_sw\mbn where all of the (pre-defined) operator-specific settings are loaded, and as you say, there are no Australian settings.

I suspect that the selection of US time-zone has invoked the LTE band selection to be driven by the US operators settings that are in these files.

As you say, the Taiwan frequency set is quite close to those for Australia, so it is probably the best selection.

I have not specifically researched the impacts of the region settings, the information above was something I stumbled upon whilst looking at other matters.

Cheers,

GM.
[Xiaomi Mi 5 Guides, News, & Discussion] chan200606:
Thanks for the info which does make sense. I was sort of hoping that the Mi5 might actually already have the code to activate additional bands through the region settings. Maybe it was just wishful thinking on my part...
[Xiaomi Mi 5 Guides, News, & Discussion] greasymonkey1960:
Unfortunately not, from the research I have done thus far. The biggest issue I have come across (excluding possible missing Tx/Rx filters) is the need to extrapolate the RF cal data for TRX, PA and LNA, and configuring the data in NV RAM. This is not easy, but being reviewed, again.
[Xiaomi Mi 5 Guides, News, & Discussion] M!tch:
i think we should ask blog-writer who got a testing device if they could provide us the required files. but i have no personal connections to someone. can anybody help?
[Xiaomi Mi 5 Guides, News, & Discussion] djmajino:
I would actually ask something in this forum, but I don't know exactly what... But maybe someone would ask .. http://xdaforums.com/mi-note-2 official thread for mi note 2 , maybe there will be somebody who can help us with the bands problem on mi5
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
I did already to 3 youtubers.

One answered positively but he reviewed the non Pro version. Still, it could be that some of the parameters are there.

I did not get the QCN yet. When I get it, I will let you know.
[Xiaomi Mi 5 Guides, News, & Discussion] PanNet:
As far as I know there is only one Mi Note 2 and you can take non-hlos.bin from fastboot build.
[Xiaomi Mi 5 Guides, News, & Discussion] traxxx79:
Isn't the modem part of the Note 2 more or less the same as in the Mi5s? The Mi5s is lying in front of me, so i am happy to help you out, if possible.
[Xiaomi Mi 5 Guides, News, & Discussion] fredda88:
There is a "global" global version of the Note 2 pro that supports B20 (and many more bands), thats the one who might be a step in the right direction.

I can buy it for my wife as a christmas gift but i belive the release is some weeks away.
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
That would be great!

Regarding the mi 5s [MENTION=1131316]traxxx79[/MENTION], it would be nice to see if there is any item about LTE B20 in the qcn. So if you could extract the qcn,we could check it.
[Xiaomi Mi 5 Guides, News, & Discussion] traxxx79:
Damn, forgot the usb-c cable at work while sitting on tons of micro-usb cables ;)

Hopefully I can get you the file by tomorrow.
[Xiaomi Mi 5 Guides, News, & Discussion] djmajino:
You have Mi Note 2 ??

Because if you have only the Mi5, I think the guys have already the files from Mi5, what we need actually is files from Mi Note 2.. but I can be wrong.. If it's helpfull, keep going. :) I am just an observer, who has Mi5 and is very sattisfied with it, so I don't need to buy other phone. Can't wait when the B20 will be live on my Mi5, but I have to wait.. :angel:
[Xiaomi Mi 5 Guides, News, & Discussion] baskaflyfer:
You can't unlock the B20, only the replacement of the NvItems (there are modem settings). I tested it for 1 + 3. You need to overwrite the NvRam, so that it was changed after reboot(QCN which includes all parameters the b20, as well as the modem mode), and flash your firmware (Global).

Sorry, I can't properly explain)))
[Xiaomi Mi 5 Guides, News, & Discussion] tndb:
Ok found something interesting (possibly). I got my gf a mi5 aswell replacing her old z5 compact and went through and unlocked band8 since we have an operator in sweden using this band on LTE and ive already done it on my own before. Before I changed any nvram values I checked with network signal guru showing I had 4g coverage on band 7 (2600Mhz) so I activated diag mode and started editing values and rebooted and checked signal guru again and it was still on band 7.. Scratched my head, checked my own phone and it was indeed locked on band8..

Started thinking if xiaomi started locking it somehow in hardware but then I thought of swapping the card from sim1 to sim2 and presto band 8... Swapped back to sim1 again and it went to band7 refusing to register on band8 so maybe we have something here. Someone that may reproduce this? This was on miui 8 (xiaomi.eu_multi_MI5_6.10.27_v8-6.0 since diag mode is disabled for some reason on cm) while my own phone runs cm13 11/16. Im upgrading her phone to cm13 now so ill edit the post if it detects band8 in both sim slots now

And before someone says fake or w/e I ran a speedtest and it got me around 3-4mbits and you can forget that with regular gsm/edge (which shares the same frequency 900Mhz)

Edit

So got the same results now on her phone with cm13 (16/nov), both sim1 and sim2 registers on band8 so probably something software related in miui perhaps stopping certain bands on sim1?
[Xiaomi Mi 5 Guides, News, & Discussion] djmajino:
ehmmm.. guys.. I tried to install drivers for my xiaomi.. I've had 4 item with exclamation mark and I managed to install 3 of 4, but QDSS Data is the one I can't install (see the picture below).. And I don't know why.. Can you help me with it? I don't like not-installed drivers..

The link for drivers from this site http://en.miui.com/thread-241222-1-1.html not working, it redirects me to some site, which my antivirus does't like it..

The 3 drivers was successfully installed from this source : http://xdaforums.com/attachment.php?attachmentid=3682462
[Xiaomi Mi 5 Guides, News, & Discussion] baskaflyfer:
I'm trying to find the right settings for the modem. There are a lot of dependencies.

For 1+3 we have the patched rmt_storage.
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
Cool, I did not know you got it.

Ok,

can you extend a bit on that, or point us to some more info?

We are also in contact with the people from Zuk Z2 and Zuk Z2 Pro. The Pro has B20.

The Zuk Z2 works with the modem of Z2 Pro (non-hlos.bin). But, even though the NVItems for B20 are added, it does not connect or even see the B20.

To sum up:

Zuk Z2 + modem Zuk Z2 Pro + NvItems B20 = no B20.

I think that this is the ideal situation because the modem of the Pro is ready to work with B20, but still it does not work. Any ideas ?
[Xiaomi Mi 5 Guides, News, & Discussion] baskaflyfer:
I try to find something useful, but without a results.

I restore the qcn(a3003) to my a3000, and also without results!!!

the only thing that has improved the quality of communication)))

all depends on the modem,

likely to have a configuration file for the modem, or something like that!!!
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
Ohh, this is really bad news.

The previous OPO and OP2 had worked this way in order to activate some bands (I think B4 B2, but not with B20, I think). Maybe after all there is a hardware limitation. We should get a high res photo of the chip board, so that we can check the paths for each band. If we could get a repair service manual, it would be good (even better) as there would be the schema there.

I do not think so. All the cases of success, OP1, OP2, Nexus5, Nexus6, have worked without any need of modifying the modem. It is also true that I think it has never worked with B20, it was always with other bands.

In the case of mi5, B8 can be activated without changing the modem, and I am pretty sure other bands like B4 too.

There is another factor which is the fact that the modem contains parameters for the different telephony providers. If your provider is not there, then it will not work (see the post of some Australian guy a few posts above).
[Xiaomi Mi 5 Guides, News, & Discussion] baskaflyfer:
Maybe you are right:)

If I find something useful, then I will tell you.
[Xiaomi Mi 5 Guides, News, & Discussion] traxxx79:
I have to get my VM up and running again. I hope to extract the qcn file from Mi 5s by the weekend.
[Xiaomi Mi 5 Guides, News, & Discussion] tndb:
Some chinese phonemaker called BLU sent a OTA update which unlocked band12 for their t-mobile customers, maybe worth digging into?

http://www.androidpolice.com/2016/11/17/blus-50-r1-hd-gets-updated-support-t-mobile-band-12-volte/

Might just be some silly lock they implemented but can perhaps be useful
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
have you compared the modems of A3000 and A3003 ? It is worth checking whether they are different.
[Xiaomi Mi 5 Guides, News, & Discussion] baskaflyfer:
I did not compare them, but I think they are the same.

I need to have an A3003 on hand, it would be much easier)))
[Xiaomi Mi 5 Guides, News, & Discussion] djmajino:
thanks, I downloaded the driver from your link and it works perfectly...

So, I tried to look into the nv browser, because I wanted to know what is this forum all about.. I took few screenshots (find it below) from qxdm and found there are only 5 bands inside the categories. So you are trying to somehow add new lines into the nvram ?

I also found there is a lot of lines of gsm or wcdma , etc which has in the description number 800, so I assume that is frequency..

My humble opinion is that the phone can work with frequency 800MHz, which band20 uses.. So, if phone has this items in the nvram, I think it should work somehow.. there should be no hw limitation then..

Or am I wrong?
[Xiaomi Mi 5 Guides, News, & Discussion] traxxx79:
[MENTION=4339055]pakidermo5000[/MENTION]: I send you a link to the Mi5s QCN file. I do not see any item for B20 in it. Maybe you can dig any deeper into it.
[Xiaomi Mi 5 Guides, News, & Discussion] sergey1977:
VOTE TO UNLOCK LTE BAND 20
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
Thanks !

I will look into it, but if there is no B20 is not of great use. However, we can compare it to mi5 and see what is different. Although I am starting to think that there are many more things that we need to modify in order to get B20 working.

cheers.
[Xiaomi Mi 5 Guides, News, & Discussion] chan200606:
Hi guys, most of the discussions in this thread are on band 20, but that faces a big hurdle of lack of configuration info for the band. Can I ask if anyone is successful with unlocking other bands, e.g. band 28 which is used in a number of Asian and Oceania countries?
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
Band 28 is pretty much the same as B20. No Items in the QCN. B4 (used in America) seems more reasonable as there are many Items already in the QCN. Only 3 items are missing, we are working on it.

At the end, I have to say that Xiaomi's policy is making me angry and I think that if they do not care for me by providing B20 or other bands that I use, it means they do not deserve my money. Luckily as consumers we still have the power to decide.
[Xiaomi Mi 5 Guides, News, & Discussion] azazello22:
Still, Xiaomi officially sells only in countries where there's no need of band20, I can't see why they should include that. I mean, if they do that, that's good, but if they don't, you can't blame them.

sent from my MI5
[Xiaomi Mi 5 Guides, News, & Discussion] pakidermo5000:
Absolutely, you are right. What i can do is not buy their phones anymore. If had been paid for the time spent in trying to activate B20 in mi5 I could probably have bought a S7 edge already.

It is just a thought out of frustration.
[Xiaomi Mi 5 Guides, News, & Discussion] smeroni68:
Do not be frustrated... you knew that MI 5 was from ever without B20. So try to unlock is not a must about the result itself, but a trial you are performing. In case of success you will be remembered for long time... if not, you spent your free time to try... but you try at least.

About buying an S7... That's another story, you can still do that, but you finished to play around... That's life.

Xiaomi Mi5 Pro on AOSP 7.1.0 (JDC)
[Xiaomi Mi 5 Guides, News, & Discussion] laueugen:
Truly agree with You guys.let try spreding the word out there about this petition and we Hope someone from Xiaomi will hear and they are releasing B20 for Mi5

https://www.change.org/p/millet-tec...utm_source=share_petition&utm_medium=copylink

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