yashsingh1/xdaforums huggingface dataset:
[General Topics] YIt2:
Thank you!

No planned Verizon support for the F22.
[General Topics] nemoslumbers:
{Mod edit: Quoted post has been deleted. Oswald Boelcke, Senior Moderator}

That's awesome. Any further testing? What made you turn off wifi calling?
[General Topics] moogpunk:
Yeah it's been used by the person I did it for with no issues to speak of. The reason I turned off wifi calling is because when the call would drop or we would have weak signal, the phone might drop the call and try switch to wifi calling automatically and a message would come on the screen that says "turn on wifi calling to continue". You can probably keep it on, but I just want the phone to force network use not wifi.
[General Topics] ben00:
If someone can help me I would greatly appreciate it.

I purchased my F21 Pro from Aliexpress with Firmware Ver. 1.1.5 and the Playstore installed.

I followed the instructions to Unlock the bootloader, and it said Bootloader Unlocked Successfully, as well as in the logs. However, in Developer Options, the OEM Unlocking is still Greyed out.

I continued to install TWRP, and than flash the boot_2.img. Successfuly.

However, I did not install the entire Rom, along with the Rooting. (Is that necessary?)

I than continued to flash the US Bands, as described in this Forum. Everything seems to have been Successful. Entering the hidden menu using the *#"#.. Does display the new bands as described.

However, I am on Telus Mobile in Canada, which seems to be using Mostly LTE bands 2, and 7. Before flashing the US Bands, I was able to connect to LTE Band 7 (as displayed in the app "LTE Discovery") when available (mostly not) and when it wasn't available it connected to 3G.

After the flash However, firstly the original LTE bands that were available before the flash are greyed out and no longer available. (Is that how it's meant to be?) So I can no longer connect to LTE Band 7.

2nd, I can see randomly (in the LTE Discover app) that there are some LTE Band 2's available, but it will never connect. Most of the time it will just show 2 or 3 Band 66's available, but will display "Emergency calls only". When I go very close to the cell tower, I think I have gotten it to successfuly connect to a Band 66 for a few minutes. With 1 bar. But it doesn't stay for long.

My phone is basically useless at the moment.

Was I meant to follow all the steps and flash the firmware in that post, even though I already have Google services? Will that make a difference?

If someone can assist I would really appreciate!!
[General Topics] moogpunk:
if you didn’t do the steps properly you wouldn’t have been able to change the bands so it doesn’t seem your installation method is wronng

Were you ever able to successfully place a call before or after the change? You need to figure out if this is a band issue or an imei one
[General Topics] baruchtosh7:
Thank you so much for your help the only problem I have is that it doesn't work in Canada because it missing the band 5 and 7 LTE do you have a way how I can add on this 2 bands To the US bans

Thanks Amelia
[General Topics] Arony1:
Any updates if anyone gets any luck to get the Verizon bands on the F22?
[General Topics] M4x0u:
​

Hello,

I'm also living in Canada and I'm having connection problems with my F21 Pro. I'm with Public Mobile, which uses Telus, and when I put in my SIM, I only had calls, but no 4G.

I followed all the steps in the tutorial, hoping it would work. But in the end, it doesn't work at all. This is quite logical since it is about the US bands while I live in Canada (it is important to understand that I did not know anything about this at all and it is by making these mistakes that I understood how the bands work). My phone is currently displaying "Emergency calls only".

I tried with my wife's SIM and, this time, I had no phone network, but I was picking up 4G. So I checked my wife's chip network with her iPhone, and I saw that it was using band 4 (so that's why it worked). But I don't know why the phone doesn't work?

In addition, I checked my SIM on my wife's iPhone and it says that my chip is using band 2, which is weird since band 2 is available on my F21 pro. Is it possible that it is band 2, but GSM for example?

I therefore have three questions:

1) Is it possible that the band that handles the 4G connection is different from the one for calling?

2) Can I undo the procedure and go back to the configurations I had before?

3) Is there anyone who lives in Canada and has managed to get everything working?

Thank you
[General Topics] samtee237:
is there another to backup the files on your phone using these commands

adb pull /dev/block/by-name/nvdata

adb pull /dev/block/by-name/nvram

adb pull /dev/block/by-name/nvcfg

without TWRP it wasn't working with ADB
[General Topics] samtee237:
And if anyone knows what the boot r o m key of the F-22 pro is please let me know ASAP
[General Topics] syty:
works with US mobile. but took good few HRs to reformat and redo all settings
[General Topics] syty:
I'm using the Original China IMEI, Just call US Mobile say your phone isn't working, and they will update the settings.
[General Topics] alisasa:
I cannot get the phone unlocked because I cannot get my computer to recognize the phone via usb.,.. no amount of button combinations are letting my windows computer see the phone so I cannot unlock it.
[General Topics] Oswald Boelcke:
Moderator Announcement

@moogpunk @ben00 @suarez90 @syty @samtee237 @Frume

I've sanitised this thread from posts regarding IMEI swaps i.e. change of IMEI's and some of your posts were effected by this cleaning! Edit or change of IMEI is illegal in quite a few of countries. XDA doesn't allow and doesn't accept discussions about or support for such an edit, change or swap.

XDA Forum Rules (excerpt):

Please refrain from such posts in future in future. Thanks for your cooperation!

Regards

Oswald Boelcke

Senior Moderator
[General Topics] syty:
1) did you move the file to c:\

2) did you install the 2 drivers ?

3) restart your PC,

4) try again
[General Topics] bbb034:
Hey, fantastic guide!!!

I flashed the bands and re wrote the IMEI, however the phone connects to ATT and t mobile networks with 4g and data and texting works fine, however the phone cannot make or receive calls... Verizon does not work at all, (this is not an IMEI issue😉) any solutions?
[General Topics] rdlan:
im not so techy and dont really understand the thread. Anyone know if I can pay someone to do this for me?
[General Topics] bbb034:
Update about my issue mentioned above.....

It seems that phones running 1.1.5 seem to be having this issue...after flashing a 1.1.1 build it seemed to have fixed my issues!!!!
[General Topics] niqsu12f:
how do u flash the build?
[General Topics] syty:
use the flash tool, just like you flash to F30, us bands, just use this link to download the 1.1.1(2)

https://xdaforums.com/t/guide-xiaomi-qin-f21-pro-custom-firmware-root-playstore-certified.4405615/

1) unlock your bootloader

2) flash to 1.1.1(2) link above

3) flash to F30 US bands
[General Topics] niqsu12f:
does it fix verizon?
[General Topics] Ostrich50:
Hi, I have a Xiaomi f21 pro and I plugged it into my computer, launched adb and I was able to issue commands. However, when I booted it into TWRP, it did not allow me to issue commands. It responded with an 'Android Keys unauthorized' message.

I have already tried deleting the keys and generating new ones, but it can only generate new ones when in full operational mode. I have also tried revoking permissions in developer settings, but none of these seem to do anything to help.

Please let me know if you have any thoughts on this!
[General Topics] daowlie10:
I followed the guide, and Engineer Mode shows the listed bands as open, but I don't have access to Verizon service. Is there something I've missed?
[General Topics] Hahazzz:
I flashed the f21 and have the US bands, doesn't work in my house while the my F30 has full bars.

Any insights would be appreciated!
[General Topics] baboonheart:
Hi guys,

Why would it be that all of the bands are showing (2, 4, 12, 13, 17, 66, 71) but my device only can use 66 and 4? I know that the other bands are present in my area, but the phone only can use those 2. any advice would be greatly appreciated.
[General Topics] ben00:
Same

Same Problem. In Canada
[General Topics] Big Suspenders:
Would this work on a tagged phone?
[General Topics] f21proenjoyer:
I was under the impression that radio bands were gated at the hardware level but this really did give me signal on at&t where I previously had none. Unfortunately at&t/Cricket were quick to tell me that my device doesn't support HD Voice and kicked me off 🤣.

Mint mobile's (T-mobile) IMEI checker says the F21 pro is supported so looks like I'll be giving them a try.

Thanks for the guide!!
[General Topics] Avrumy:
Hi guys, would like to know if this guide work only for the 4/64 Version, or also for the 3/32 version.

Thanks
[General Topics] Sad-Pain-2749:
Are there any major differences between 1.1.5 and 1.1.1?

I just got my f21 pro 4/64gb - Google Play version. It came with the bootloader unlocked, and it is running V1.1.5.

I have Verizon and want to flash the phone to US bands. I see I need to install TWRP, but the only way I see to do so involves flashing 1.1.1
[General Topics] Fliphone Bochur:
I just got 3 new F21s shipped to me with locked bootloaders. I tried using MTKClient (which has worked for me in the past) and the linked tool to unlock the bootloader with no success. When you run flashing unlock in fastboot mode it says unknown command. I heard that China stopped allowing the bootloader to be unlocked on new F21s. Is this true? Does anybody have any other ideas I could try?
[General Topics] Sad-Pain-2749:
I just want to say THANK YOU!! I received my F21 Pro 4/64 with unlocked bootloader and Google Play yesterday. I have never done anything like this in my life, but your instructions were so clear that I was successful in my quest to unlock US bands and now my phone works with Verizon (I live in NY)!

I had to first follow a different guide to get TWRP, which involved rooting the phone and some other good stuff. But now it works and I'm very happy! Thank you again!
[General Topics] yechiele:
Could you link which other guide you needed to follow?

Waiting for my Qin F21 Pro to arrive.

(Although TIQ M5 is now available with US support, I prefer the Qin as it is 4GB/64GB)

Thanks
[General Topics] Sad-Pain-2749:
Sure! I'm a bit busy now but I can do this either Saturday night or Sunday.
[General Topics] samtee237:
Yes it should work
[General Topics] yechiele:
What did US Mobile Rep do when called? I gave them my IMEI and they said it shows up as a Qin phone which is not compatible.
[General Topics] sgtmug:
i'm gonna be honest... i've tried to follow this tutorial, but this sort of thing does not seem to be in my skill set!! does anyone know if a service exists that i can mail my phone to and have this done for me? would rather drop a bit more cash than deal with this process

specifically, i can't even get through the "required materials" section, because i keep getting an error message when i try to extract the custom firmware.

pretty damn close to giving up and just buying a different phone, but if y'all were able to make this work then clearly it's doable...!
[General Topics] Savvybro:
Do you know if this works with the qin f22 pro? Or how to do this with the f22 pro?
[General Topics] yechiele:
Wont work for the Qin F22 Pro. No current to get it to work with well with US carriers. (It does somewhat work with T-Mobile).
[General Topics] samtee237:
Anyone know why I'm getting this error
[General Topics] ari bari:
Thanks! this realy helped me, but I lost google play service.

is there any way i can get this to work again? is there a way to edit the scatter file of the tutorial that you provided a link for twrp so it should not over write the bands?
[General Topics] samtee237:
I'm not sure how you managed to do that this guide only overwrites the network bands doesn't have anything to do with Google Play
[General Topics] :
Can anyone explain why I get this error when trying to flash? I followed everything.

I don't know if I have TWRP, but I do have superuser rights.

Even trying to install TWRP I get this error.

Can anyone help?

(When I'm trying to format+download, I get an error that "it can't find the .Img)
[General Topics] samtee237:
Is this version 2.0.8 32GB?
[General Topics] :
I'm not sure about the version, but it is the 32gb.
[General Topics] samtee237:
What's the build number
[General Topics] YzWolf:
Hi, I'm considering buying the F21 Pro, but I'm seeing a lot of things and hoping someone and confirm

I was told that If you buy the ones that come with google etc. on aliexpress, they are most likely spyware.

So if I buy the original China one, and run this fix for the bands, will it also make it "Kosher" like the F30 (in other words no apps or anything?)

If not, will it be a regular android phone that I can add Google services (play store, maps, etc.)?

Also, I would want to use a debloater and kind of make is Semi-Kosher, as the school I go to has restrictions on phones. (In other words remove browser and stuff like that, but add Uber, Maps, and other useful apps.)

Will I be able to to do that after this?

Thanks in advance for clarifying
[General Topics] :
No. It's just for the bands. It's not the whole f30.

And yes, is gonna be a normal Google phone.

And yes, you can filter it afterwards.

(Make sure you filter it tzadickel...)
[General Topics] :
So let's be honest, I'm not sure. It's not by me right now. But I will say, it's not the default F-21. It's a hybrid-f30-f21 thing.

It's called F-21, but by default the package installer is disabled. It's like from the first "kosher" versions to come out.

Does that explain everything?

And do you have a solution?

Thanks so much samtee237
[General Topics] YzWolf:
I'm assuming there are guides on how to add playstore etc. (?)

shkoyech
[General Topics] :
Looks like I didn't understand your second question well.

If your phone has Google services now, nothing will change after you flash. But if it doesn't have Google services now, you can install it by following This tutorial.

it's complicated, but possible.

(P.s. - Zul zein mit hatzlachah)
[General Topics] YzWolf:
Thanks.

Also, do you know if its true that they Google versions come with spyware? I got that info from a reddit post
[General Topics] YzWolf:
(deleted)
[General Topics] :
I can't read the reddit post due to my filter, but it's a half truth.

Let's clear this out:

- on every late Android device, you can be a Device owner, and make users etc.

- for some reason, on every qin phone (not only Google version) the feature is disabled.

- when trying to set a device administrator, the error you get is that "the Device already has a owner" - but that mystery owner is nowhere to be found.

- that's the reason why Gentech™ netspark™ MBsmart™ and all other filtering companies refuse to filter it - because, they simply can't obtain full Device administrator control.

- now, who's this owner? "The Device policy". Yeah, why? who's that? Maybe China, maybe not. It can be just another firmware quirk that doesn't mean anything significant.

[But don't feel so special that the Chinese government needs ya... They only need ppl that are "top-secret mission-impossible spies" = you have nothing to worry.]

So in summary, the answer is "ya never know".

(This is how it looks when trying to set a device administrator on a qin f22/f21/f30. Note the first message)
[General Topics] YzWolf:
The complaints weren't the same as what you just brought:

(reddit): "Phone was from AliExpress I spent 173$ (Canadian dollars) the phone came in three weeks. First Impressions everything is cute and good HOWEVER as you guys know the phone is from china so I ran an Antivirus software to find out that the keyboard that came with the phone called (kika 123) is legit a virus and it triggered the bitdefender app and I deleted it SADLY before taking a screenshot. I went to settings I realized this phone came with security patch 2020?? This phone also has an unlocked boatloader??? None those things were in the description. This phone has no compass so google maps and the GPS is literally useless it'll get you lost because google maps won't realize if you turn left or right due to no compass within the phone.

This phone is highly suspicious don't buy it. I learned my lesson not to trust AliExpress now. The phone is from xiamoi which is a good company but this seller took the phone put a virus on it and modded it even though it's not the cracked f21 pro version that works in the USA I think called koushair or something.

Guys what's deadly suspicious is the browser (Chinese) once you oken it to takes you to their weird search engine called Badu or something and other Chinese apps that you can't disable and they have access to all settings camera and location and microphone and you can not even disable the access!!! Whoever is selling this phone knows what they're doing.

Unlocked boatloader

No compass

Outdated security patch Suspicious browser, contacts, messages apps that have access to everything and you can't disable it

Virus with the keyboard that came with it and on top of this the seller won't issue a refund!!! A despute with my bank will be immediately processed. I've been using AliExpress for years and this will be my first ever despute within the app and actually my first ever time calling a bank for a despute/charge back."

Yea dw i know, but the reddit was saying how the google isnt from xiaomi, rather someone got it and resold it with google. I'm not exactly scared so much because i dont have any private and sensitive things on my phone, but if by getting the non google one and putting it on i can get a safer device i would
[General Topics] :
I hear what he says.

First of all: there is indeed suspicious stuff going on. But whatever he says, isn't suspicious.

1. Kika 123 is a typical keyboard. Nothing major there. The nuu f4L has it. Whatever... Plus - the models we have doesn't have that specific keyboard.

2. Unlocked bootloader. What's the problem? It's just practical since programmers will unlock it anyways.

3. The location isn't good, but works fine. Try it yourself using Waze or Google maps. (What does this have to do with China anyways?)

4. default messaging and browsing apps - you can uninstall them if your scared. (Use lucky patcher for easy uninstalling)

5. "Koshair" (🤣) has nothing to do with cracked f21 version (I couldn't breath )

This guy is just a conspiracy theorist that loves adventure and watch dogs 🎮.

What might be suspicious is:

- that they don't sell it on the official xiomi website.

- Or some apps wouldn't run saying "the Device isn't certified" (for an example, TextNow)

- Or that they illegally forged the מאושר logo.

It just sounds that the guy wants to feel ethically correct for asking for a refund.

Hatzlachah rabbah
[General Topics] YzWolf:
Thanks a lot
[General Topics] YzWolf:
Sorry, one more question.

Would it be worth it to buy a non-google one and follow this guide

Or to just buy the google one?

in other words, whats the difference?
[General Topics] :
It's always the best to go simple. Buy a Google version. That guide is really complicated and it's not worth using so much energy for a $20 difference. Let alone the chance that you hard brick the phone.

(Except if you really really want TWRP, which you get via that guide. You would need TWRP in order to obtain US bands. - basically, you will need that process anyways. So decide yourself which way to go.)

PS: you don't have to excuse yourself for asking to many questions. I'm happy to help you anyway. Since apps4flip shut down, this will hopefully become the forums that dumbphone users use.
[General Topics] YzWolf:
Besides the price, would there be any difference in the actual phone?

And is TWRP the hard part of the guide? If so, as I would need it anyway for the bands, might was well get it without google?
[General Topics] :
Again.

The Google version is obviously better - since you can have play store, and all Google apps.

Now, since you might need to flash it - to get USA bands, you need TWRP.

There are Google versions that come with TWRP by default, But most don't. So you'll have to put it on yourself.

Now in the process of putting on TWRP, you also get Google services.

So after all - if you're getting a f21 and you want it to work in the USA, you'll have to flash TWRP (including Google services) - so now you can get a non Google version "cuz you're anyways gonna flash Google services onto it" .

Maskim?

(Unless you get an f30 or fig flip 2 and shoin)
[General Topics] YzWolf:
I dont think you understood me

I know that with google its better, but does it make a difference in the actual phone if (a) I buy it with google or (b) I buy a stock version and then put google onto it.

And if Im already putting on TWRP for the band fix, why would it be that "much harder" to just by the stock one and flash google, in the other guide (unless the magisk part it hard, i dont know because its my first time doing something like this)

Sorry if I'm not making much sense, this my first time doing this and although I consider myself pretty techy in using computers etc bchlal and knowing specs and stuff, this is my first time going into and reading about stuff like this (as I mentioned earlier)

I dont want to (a) because of the price and (b) because I dont want it THAT filtered, and the option of changing the filter later on.

Again, thanks for answering my (amateur) questions
[General Topics] :
A original Google F-21 vs. a non original Google F-21 (which is now Google) which one is better? If That's your question:

From my experience, original is better.

With what? I don't know exactly, but I do know that the non original one can sometimes make problems like "Google services has stopped" etc.

Always, the best option is to go straight.

Rather get the original Google version.

Was that clear? ☺️
[General Topics] YzWolf:
Yea, thanks so much :)
[General Topics] samtee237:
That depends what are you trying to do are you trying to do over your entire phone and make it back a f21?
[General Topics] :
I'm Trying to install TWRP or flashing US bands.
[General Topics] samtee237:
Well anyway TWRP is not going to work normally on any version only on version 1.1.1 where they decrypted the phone there TWRP works The other phones are encrypted so even if you do install TWRP you won't have access to the file system files, as far as flashing US bands you said it's the f30 I don't understand why I need to do that?
[General Topics] :
It's a f21 but with f30-like restrictions. Anyways, when flashing anything, that error comes up. I guess it's not for my version.

Thanks for your help.
[General Topics] qinpro:
I tried following these steps and i got no service when i put in my sim card and now i have a fake imei. can someone help me put it back to the original one and help me get this phone working in the us?
[General Topics] heimlichforone:
Didn't do my due diligence and got a build 5.0.8 4/64GB manufactured around 12/23. What are the odds that newer builds will get an unlock/decrypt? Chances of installing TWRP and turning on US cell bands seem rather slim at this point.
[General Topics] qinpro:
I have Verizon with us mobile and the service goes in and out. also I checked on Verizon and other services that use Verizon and they all say the phone won't work with their service, only TracFone said the phone will work and they use verizon. so basically only t mobile will work with this?
[General Topics] yechiele:
Call or Chat with US-Mobile.

Tell them to activate CDMA-Less on your line.

It will then work fine.
[General Topics] qinpro:
Thanks, i'll try it, will this work for any service using Verizon or just us mobile?
[General Topics] yechiele:
If they activate CDMA-Less on your Verizon SIM, it will work fine on the Verizon towers.
[General Topics] qinpro:
Ok thanks. I didn't test it on t mobile, but I assume it will work correct? also and way to make it work with att?
[General Topics] yechiele:
It should work on T-Mobile without doing anything.

I have not tested on ATT