Mi 9 cant activate with LTE on AT&T network? - Xiaomi Mi 9 Questions & Answers

So I got a Chinese edition phone with band 2, 4, 5, 12, and 17 to fully support both TMobile and ATT network. The Global edition was missing band 17 for ATT so I didnt want to go that route. Been going back and forth with ATT a bit for the past few days since my device came in. The phone shows up and an "unknown device" on their network when we tried adding the IEMI. It will get UMTS (2g) and HSPA+ (3Gish/4G), but will not connect to any LTE or GSM. The phone supports GSM fine, so its strange that it wont do normal cellular connection over that, it will only do cellular over UMTS. The device wont detect as an LTE device and so the sim wont activate LTE on it.
Anyone else with ATT have this issue? And were you able to resolve it somehow?
Or those with TMobile in the US, are you able to activate the phone fine and get full coverage and LTE working?
I messed around with the connection settings in the *#*#4636#*#* menu. Only the "LTE/TD-SCDMA/UMTS" and "LTE/TD-SCDMA/WCDMA" will work properly at all. Both options give me UMTS for cellular, and HSPA+ for data. Of the 4 APNs that ATT uses, only the "ATT Phone" will work at all. The standard LTE APN "NXTGENPHONE" will leave the phone with no data or cellular service. This is related to the phone not being detected as an LTE device and the SIM not activating as such.

I simply put my AT&T sim in my China version and it worked straightaway. I didn't have to do anything else.

I am on Cricket, which leases service from AT&T, so I should know if it works once it comes Tuesday.

Just for perspective, I got a EU version of the Mi 9. Popped in a T-Mobile sim and it worked out of the box. Try the other sim slot. Could be your sim card if not.
Try these codes in Dialer. See if that helps anything.
VoLTE *#*#86583#*#*
VoWIFI *#*#869434#*#*

I was just making an ATT account so no previous activations or sims. So that could be the issue. I will try activating a sim with an old phone and then move the sim over. Or since it is the same hardware as a Galaxy S10, ill see if I can find a store that will activate a sim with a floor model S10 and then let me swap the sim into my Mi 9

Straight talk (ATT sim) lte without issue. no programming necessary , I have the global model though

jvs60 said:
I simply put my AT&T sim in my China version and it worked straightaway. I didn't have to do anything else.
Click to expand...
Click to collapse
airwebber said:
I am on Cricket, which leases service from AT&T, so I should know if it works once it comes Tuesday.
Click to expand...
Click to collapse
MixEvo said:
Straight talk (ATT sim) lte without issue. no programming necessary , I have the global model though
Click to expand...
Click to collapse
Where did you guys buy the China version from?

US mobile white SIM from starter kit (T-Mobile) works well with LTE on Chinese model of Mi 9. Black one (Verizon) technically works, registers in the network and enables data, but Verizon refuses the IMEI as non-certified brand of the phone. Trick with activation on the iphone first and switching to xiaomi did not work, service gets cut off, when trying to make a call, it keeps dropping. AT&T based: Cricket and Straight Talk work just fine too.
---------- Post added at 06:15 AM ---------- Previous post was at 06:14 AM ----------
StDevious said:
Where did you guys buy the China version from?
Click to expand...
Click to collapse
Aliexpress https://www.aliexpress.com/item/Ori...222.html?spm=a2g0s.9042311.0.0.58b14c4dxws9df
You'r welcome =)

StDevious said:
Where did you guys buy the China version from?
Click to expand...
Click to collapse
I bought my Transparent Edition from Tradingshenzhen.com

Neolo said:
US mobile white SIM from starter kit (T-Mobile) works well with LTE on Chinese model of Mi 9. Black one (Verizon) technically works, registers in the network and enables data, but Verizon refuses the IMEI as non-certified brand of the phone. Trick with activation on the iphone first and switching to xiaomi did not work, service gets cut off, when trying to make a call, it keeps dropping. AT&T based: Cricket and Straight Talk work just fine too.
Click to expand...
Click to collapse
Thanks for the info.
I was wondering about Verizon, since it support some CDMA bands and support 2 out of 3 of the LTE bands they use (doesnt support B13). Unfortunately I never tried it myself since half the coverage near me uses the band this phone doesnt support on Verizon.
I went and got my ATT account updated to an old Nexus 6 IMEI number and it got LTE on the N6. I then took the sim and put it in my Mi 9 and now the Mi 9 has LTE. So for anyone just getting this phone, you must have an IMEI on your account that is recognized as an LTE phone. If you try to add the IMEI of the Mi9 it is not recognized by ATT and wont provision LTE.

IMEI spoofing does not work with Verizon, as they simply ban the device. They call it “non certified”. Bands are seem ok.

StDevious said:
Where did you guys buy the China version from?
Click to expand...
Click to collapse
I been purchasing from liaow. Never ran across a issue with them

I've been having the same issue, with a recently-bought (last week arrived) Mi 9 Global on AT&T postpaid. LTE showed up and worked fine day one, now network speeds are dropped down to 3.5G speeds. Anyone else have success with getting LTE on a fresh SIM?

EniGmA1987 said:
So I got a Chinese edition phone with band 2, 4, 5, 12, and 17 to fully support both TMobile and ATT network. The Global edition was missing band 17 for ATT so I didnt want to go that route. Been going back and forth with ATT a bit for the past few days since my device came in. The phone shows up and an "unknown device" on their network when we tried adding the IEMI. It will get UMTS (2g) and HSPA+ (3Gish/4G), but will not connect to any LTE or GSM. The phone supports GSM fine, so its strange that it wont do normal cellular connection over that, it will only do cellular over UMTS. The device wont detect as an LTE device and so the sim wont activate LTE on it.
Anyone else with ATT have this issue? And were you able to resolve it somehow?
Or those with TMobile in the US, are you able to activate the phone fine and get full coverage and LTE working?
I messed around with the connection settings in the *#*#4636#*#* menu. Only the "LTE/TD-SCDMA/UMTS" and "LTE/TD-SCDMA/WCDMA" will work properly at all. Both options give me UMTS for cellular, and HSPA+ for data. Of the 4 APNs that ATT uses, only the "ATT Phone" will work at all. The standard LTE APN "NXTGENPHONE" will leave the phone with no data or cellular service. This is related to the phone not being detected as an LTE device and the SIM not activating as such.
Click to expand...
Click to collapse
I got the Chinese version and I'm in the US. And I I have the straight talk T-Mobile sim and everything works like it is suppose to expect my internet. It says its 4g but it is very very slow. Any ideas?

Related

Using on Other Carriers(GSM)

I am a n00b in the subject of unlocking phones to use on other networks etc.
Is there a possibility when the SPL is unlocked that we could use this on any GSM network since it is a 'world' capable phone with the GSM radio and a SIM card?
I have used a lot of WINMO phone son VZW and I flash and unlock quite often. Just had no idea how this process worked. sorry if this is a duplicate of any kind
thank you
You can call Verizon and ask them for the unlock code to your phone. The number is 1-800-711-8300, option 2 I believe. Either way you'll end up talking to a human who can do that for you. Then you'll enter the code (code A) in All Settings > Personal > Security. According to others, this unlock on the SIM will remain, even after flashing with a custom ROM.
no software to unlock the sim card, i don't want to call vz
I can buy unlock code for Imagio.
Why dont you want to call verizon? They are perfectly happy to unlock the sim for you as long as you dont have any problems with your account like delinquent payments. I called and had both of my phones unlocked in minutes and tested my ATT sim card, worked great on the aTT network
GSM 3G on america?
devlspawn said:
Tested my ATT sim card, worked great on the aTT network
Click to expand...
Click to collapse
Did you see if you had E or 3G or H?
I've looked at the specs but haven't found the GSM 3G bands that it has.
Just this:
Digital Dual (CDMA,PCS) /1X, EVDO /Rev.A <---- perfectly clear
GSM Quad Band (GSM/GPRS/EDGE) <---- perfectly clear
WCDMA / HSDPA / HSUPA <---- not clear if it has 850mhz here
I guess it doesn't have 3G in 850mhz but I still have hopes.
Regards!
I only get "E" - my SIM is 3G capable, but the corporate plan is text-only. In other words, I can't say for certain if it will get 3G speeds. HSDPA is available here in the US, so it should be possible for an Imagio to have 3G in the States.
I called yesterday, told them I would be going overseas, they gave me the unlock code. Simple as pie. I can use my neighbor's AT&T sim card without any issues minus stuff that is Verizon specific.
The SIM unlock was easy and successful. Just call Verizon at the above number and its a done deal in 30 seconds. Will try my wife's SIM in it later.....woohoo....
because i dont have vz wireless phone number, but i need to use the t-moible or at&t, i call them, but they need me vz wireless phone number... i dont have, they not unlock for me
as i was told u are able to get it unlocked verizon will do it if ur account is 3months old and in good standing... also as far as using it on gsm not sure as of yet but will say tmobile basic signal i E in an area where out of ur basic ntwork jumpin off of another tower it will put u on H or even G but there is no 3G
wingtytn said:
as i was told u are able to get it unlocked verizon will do it if ur account is 3months old and in good standing... also as far as using it on gsm not sure as of yet but will say tmobile basic signal i E in an area where out of ur basic ntwork jumpin off of another tower it will put u on H or even G but there is no 3G
Click to expand...
Click to collapse
H is HSDPA, which is 3.5G (faster than 3G... 7.2mbps compared to 1.5 mbps or something like that)
Edge is like 0.3 mbps and GPRS like 0.1
not really sure, but you get the idea.
Here in Mexico we have HSDPA but never get above 2mbps, at nights we do peak at 3mbps but avarage is still at much 2mbps.
Did I do something wrong?
I told them I was going over seas, I gave them my sim number and they said I was all set to go over there. Does this mean my phone is unlocked, I didn't have to put in any numbers. I will hate myself if I said the wrong thing. And if I did it right then how do I switch between sim cards and cdma?
For you phone to be unlocked they would have to give you a number to enter.
To switch between sim and cdma, go to settings -> phone -> network and change it from global mode to GSM
Razorfold said:
For you phone to be unlocked they would have to give you a number to enter.
To switch between sim and cdma, go to settings -> phone -> network and change it from global mode to GSM
Click to expand...
Click to collapse
Not true, works fine with t mobile and at&t, didn't enter any numbers did it all from their, weird, but whatever.
I think a few things from the last three posts need clarification:
1. When you call VZW Global Support, they should have given a security code to unlock the SIM. It is a string of numbers. It is not a phone number.
2. Once the SIM is unlocked, if a SIM is present in the phone, there is no guarantee that switching back from GSM/UMTS to Global will switch the phone back to CDMA. There have been times where I've done that, and the phone has stayed on AT&T (my employer uses AT&T). I think a better method is to use either CDMA or GSM/UMTS, and to avoid the Global setting completely.
Kebero said:
I think a few things from the last three posts need clarification:
1. When you call VZW Global Support, they should have given a security code to unlock the SIM. It is a string of numbers. It is not a phone number.
2. Once the SIM is unlocked, if a SIM is present in the phone, there is no guarantee that switching back from GSM/UMTS to Global will switch the phone back to CDMA. There have been times where I've done that, and the phone has stayed on AT&T (my employer uses AT&T). I think a better method is to use either CDMA or GSM/UMTS, and to avoid the Global setting completely.
Click to expand...
Click to collapse
On item number 1 I would agree with you ignore my experience because even my friend who unlocks all kinds of phones for metro says it is a weird case. I have never received any unlcock cod yet it says "sim security unlocked" probably will be screwed up if I ever want to flash or reset it but whatever.
On number 2 I can't agree with you because I bought an at&t go card just for sh**ts and giggles and I have no problems, infact I can switch between the two while the phone is on, done many tests. But if anyone else experiences this issue I would like to know.
I have never heard an unlock like that. But could be... like an 'on air update'... Most times is a code or the frown upon methods (connect it to a PC or a box).
If any one wants to know, no it does not have GSM 3G for 850mhz band, not 3G with ATT and others in the world that uses that band. Tested it myself.
medellinrob said:
I have never heard an unlock like that. But could be... like an 'on air update'... Most times is a code or the frown upon methods (connect it to a PC or a box).
If any one wants to know, no it does not have GSM 3G for 850mhz band, not 3G with ATT and others in the world that uses that band. Tested it myself.
Click to expand...
Click to collapse
Even if you run at&t 3g it is much slower than verizon's. Either that or safari renders slower than s**t on brother's Icrap 3g. T mobile's is faster if you can find their 3g coverage, good luck.
PS I am still looking for internet connection settings for tmobile as I sold an unlocked imagio to my buddy and he can't get the data connection working.
does anyone ever solve de 3G problem with the 850 MHZ band... I live in Venezuela use movistar i ve the imagio sim unlocked can´t get 3G due to band restriction

[Q] Sim Unlocked At&t s5, will it work with Verizon's network?

I carrier unlocked my Galaxy S 5 and wanted to know if it would work on Verizon's network.
It might work on Wcdma, & Lte. Maybe other chime in.
Sent from my SAMSUNG-SM-G870A using Tapatalk
I'd like to know as well.
Because I'm switching and my S5 is carrier unlocked.
When I put my VZW SIM (which works fine in an iphone 6) in the phone there is no indication of a problem, i.e. wrong sim, etc.
However the signal icon is generic and if I try to place a call it gives me that dreaded not registered on network pop up.
If I look in the properties on the phone the (VZW) number is displayed but it does not show as activated on network.
So my question is does the S5 (actually purchased at a Best Buy store as MetroPCS and unlocked to use on ATT) have the proper modem to work with VZW? If not I will need to sell it.
Interestingly enough I put the ATT SIM in the (VZW) iphone and it worked instantly. Placed calls, send SMS, and get LTE speeds with nothing to change whatsoever!
Here's a fairly good read on network bands and compatibility between carriers....
It should help.....g
http://www.tech-recipes.com/rx/1498...-network-frequencies-and-phone-compatibility/

AT&T and LTE?

Anyone using LTE on the Nexus 6 with AT&T? Mine from Motorola came today. I'm just getting HSPA though. When I try to select preferred network LTE, the button is filled but the text doesn't say lte. Previous phone was the 6 Plus. Any help? Talked to AT&T and they added the phone but no worky!
breezing on the LTE here
dwd3885 said:
Anyone using LTE on the Nexus 6 with AT&T? Mine from Motorola came today. I'm just getting HSPA though. When I try to select preferred network LTE, the button is filled but the text doesn't say lte. Previous phone was the 6 Plus. Any help? Talked to AT&T and they added the phone but no worky!
Click to expand...
Click to collapse
make sure you have the correct APN settings,
I had issues at first but turned on airplane mode for 5 minutes then after I turned it off I had LTE
dwd3885 said:
Anyone using LTE on the Nexus 6 with AT&T? Mine from Motorola came today. I'm just getting HSPA though. When I try to select preferred network LTE, the button is filled but the text doesn't say lte. Previous phone was the 6 Plus. Any help? Talked to AT&T and they added the phone but no worky!
Click to expand...
Click to collapse
Lte works fine and Att is bad where I live.
dwd3885 said:
Anyone using LTE on the Nexus 6 with AT&T? Mine from Motorola came today. I'm just getting HSPA though. When I try to select preferred network LTE, the button is filled but the text doesn't say lte. Previous phone was the 6 Plus. Any help? Talked to AT&T and they added the phone but no worky!
Click to expand...
Click to collapse
I have the same issue, except I was not able to even select LTE before calling the tech support.
The tech support has confirmed my data plan and APN setting are correct.
Can it be like the tech support said it might be the sim card? Or my APN setting is actually incorrect?
Anyone has solution for this issue?
If someone with LTE can post his/her APN setting, I'd be really thankful.
bigwhiteegg said:
I have the same issue, except I was not able to even select LTE before calling the tech support.
The tech support has confirmed my data plan and APN setting are correct.
Can it be like the tech support said it might be the sim card? Or my APN setting is actually incorrect?
Anyone has solution for this issue?
If someone with LTE can post his/her APN setting, I'd be really thankful.
Click to expand...
Click to collapse
Here ya go
Sent from my Nexus 6
Thanks a lot! It does allow me to use LTE.
I found out my phone switched to LTE couple minutes after I post the reply.
I had another APN setting, and it also works with the setting you provided.
So the key here is to talk to a knowledgeable tech support, and confirm your plan, IMEI, and APN setting is correct on his/her end.
The tech support mentioned my device displayed on his end was not Nexus 6, so I provided him with my IMEI, and that is probably why I was able to select LTE for my prefer network.
I'm on AT&T with an AT&T preordered 32GB. I've got my grandfathered unlimited LTE (according to the tech support chat dude) and the IMEI matches his database. I'm still only getting on average 1-3Mbps down and .02-1Mbps up.
I've double checked APN settings, tried the old "phone" APN settings, spoke with chat who advised me to try a new SIM or exchange the phone, reboots and all. I'm pretty much in DC, so coverage should be a non-issue. I've got full bars and the indicator shows "LTE". I'm at a loss and was wondering if anyone on here had any bright ideas?
I have AT&T, but purchased my unit at T-Mobile. I switched sim cards out the box, and had LTE with no issues.
Have no problems with mine (and yes, mine is a freshly rooted AT&T model Nex6--yes, you can oem unlock and root it just fine).
Of course, I also live in one of those parts of the country where the Deathstar Telco tends to have the best coverage so there's that; I'd be shocked if I DIDN'T get LTE around here
(Which is rather more than I can say for Sprint around here, but that's neither here nor there)

Unlocked Sprint LG V40 for use on Tmobile

I'm novice to the whole rooting scene so please cope with me.
I found a good deal on almost new Lg v40 from a Sprint user.
We'll meet at Sprint store to verify device is paid off and unlock it.
Once Sprint unlocks it, can I just use this device on Tmobile with my Tmobile sim and will it have band 71 or do I need to have Tmobile fw on it to open band 71 ?
Lg website lists in specs for sprint model (model LM-V405UA) as having band 71.
Can anyone confirm ?
rdx2019 said:
I'm novice to the whole rooting scene so please cope with me.
I found a good deal on almost new Lg v40 from a Sprint user.
We'll meet at Sprint store to verify device is paid off and unlock it.
Once Sprint unlocks it, can I just use this device on Tmobile with my Tmobile sim and will it have band 71 or do I need to have Tmobile fw on it to open band 71 ?
Lg website lists in specs for sprint model (model LM-V405UA) as having band 71.
Can anyone confirm ?
Click to expand...
Click to collapse
I don't think Sprint uses the same LTE bands.
Mine works just fine on T-mobile as of a week or so ago when i got it .Mine is the Sprint version full network & Factory UNLOCKED.
To make sure your GSM unlocked go to system/system-updates--
Then look in the list UICC Unlock it should say -----( The Device is unlocked for any SIM card )
zxhwk said:
Mine works just fine on T-mobile as of a week or so ago when i got it .Mine is the Sprint version full network & Factory UNLOCKED.
To make sure your GSM unlocked go to system/system-updates--
Then look in the list UICC Unlock it should say -----( The Device is unlocked for any SIM card )
Click to expand...
Click to collapse
*Edit - confirmed band 71 is only active in the tmo model, I went with it vs an unlocked variant*
Are you able to use band 71/600mhz? I've seen comments suggesting band 71 isn't enabled in any other model besides tmo, even though specs show all variants having the same band capability.
I'm in the same boat, on tmo & tempted by the lower priced unlocked variant, but would like to confirm band 71 is usable before ordering one.
my sprint v40 was working on t mobile for about two weeks then it went dead and lost its network settings now i cant seem to get it back on tmobile some1 help ! i did the uicc unlock and enable oem unlock
brian9291 said:
my sprint v40 was working on t mobile for about two weeks then it went dead and lost its network settings now i cant seem to get it back on tmobile some1 help ! i did the uicc unlock and enable oem unlock
Click to expand...
Click to collapse
OEM unlock is specifically for bootloader unlocking not network unlocking..
I will be able to report back in about a week whether band 71 works.
I bought the Sprint version of the V40.
I am on Sprint now.
I am crossflashed to US.
I am switching to T-Mobile at the end of the week.
I live in a Band 71 market.
[NG]Owner
So I have switched to TMobile.
I used the hidden Service Menu ( *#546368#*405# ) to force the phone to Band 71. It did not connect to Band 71, instead to Band 2, as reported by LTE Discovery.
I then used the hidden Service Menu ( *#546368#*405# ) to force the phone to Band 12. It did connect to Band 12 as reported by LTE Discovery.
So either band 71 doesn't work, or I don't have access to Band 71 from my house. I have heard that there are confirmed Band 71 sightings in Kansas City, so I will go there to try. Once I do I'll report back.
Both VoWiFi and VoLTE are listed as provisioned.
[NG]Owner
Can somebody also confirm band 71 compatibility? I'm looking to get a Sprint V40 but I'm not sure if cross flashing will enable band 71. Also can somebody confirm if services such as VoLTE, HD Voice, and Wi-Fi calling will work on a cross flashed device? Also how exactly do you force gsm bands if it gives you a checklist? Do you just remove all the bands but one? Also will crossflashing to unlocked make OTA stop working? If so, why does it not work?
So I have to amend my previous post:
I can confirm the following:
Using the Hidden Service Menu from this post, and several apps out of the Play store, my phone sees T-Mobile bands 2, 4, 12 and 71 towers. And I have successfully been connected to a Band 71 tower.
Oddly enough, LTE Discovery still reports the connection as a different band. So I'm going with the Hidden Service Menu as definitive.
[NG]Owner
NGOwner said:
So I have to amend my previous post:
I can confirm the following:
Using the Hidden Service Menu from this post, and several apps out of the Play store, my phone sees T-Mobile bands 2, 4, 12 and 71 towers. And I have successfully been connected to a Band 71 tower.
Oddly enough, LTE Discovery still reports the connection as a different band. So I'm going with the Hidden Service Menu as definitive.
[NG]Owner
Click to expand...
Click to collapse
After you cross flashed, do services like VoLTE, HD Voice, and Wi-Fi calling still work?
---------- Post added at 09:59 PM ---------- Previous post was at 09:52 PM ----------
NGOwner said:
So I have to amend my previous post:
I can confirm the following:
Using the Hidden Service Menu from this post, and several apps out of the Play store, my phone sees T-Mobile bands 2, 4, 12 and 71 towers. And I have successfully been connected to a Band 71 tower.
Oddly enough, LTE Discovery still reports the connection as a different band. So I'm going with the Hidden Service Menu as definitive.
[NG]Owner
Click to expand...
Click to collapse
Also how were you able to open that hidden menu. I entered in the code and nothing happens.
jimmysofat6864 said:
After you cross flashed, do services like VoLTE, HD Voice, and Wi-Fi calling still work?
Click to expand...
Click to collapse
Not sure what you mean by still. I was on Sprint. Received Sprint v40. Immediately crossflashed to US version. Used phone on Sprint. Migrated to T-Mobile. VoLTE, HD Voice, and Wi-Fi calling work. That was the sequence. I have no idea if Sprint has those features or if they work on Sprint. But on T-Mobile with a cross flashed to US version v40, those services work just fine for me.
Now if you are thinking of crossflashing a T-Mobile v40, stop right now. You'll brick it. There is nothing you can do to a TMo v40.
jimmysofat6864 said:
Also how were you able to open that hidden menu. I entered in the code and nothing happens.
Click to expand...
Click to collapse
I assume you are also entering it into the phone dialer. I type in the code, and the hidden service menu appears. If it's not working for you, I don't know why not.
[NG]Owner
I was referring to a sprint model phone but was nice to know everything works. Just have to wait and see if OTA updates work.

network change firmware

So running the latest software it seems no need to flash firmware for carriers when you place an actual carrier sim in the splash screen and everything automatically switches to sim...I have a note 8 and a note 9 one cricket one metro since note 9 has band 71 I wanted to try metro in it and utilize that but ofcourse finding out metro locks service to imei unlike cricket does where any phone unlocked will work..but although I couldn't use my metro on my note 9 it did change splash screen and showed the wifi calling which I cant use wifi calling but i am able to hotspot again so that's the bonus for everyone on cricket needing hotspot again try popping in a tmobile or metro sim it holds even after restarting...correct me if I'm wrong on the firmware automatically switching cause the note 9 is a verizon bought phone and had been showing verizon splash screen....diagnose further when I buy new sim to tie note 9 to metro since they apparently pair sim and imei...
Terasman210 said:
So running the latest software it seems no need to flash firmware for carriers when you place an actual carrier sim in the splash screen and everything automatically switches to sim...I have a note 8 and a note 9 one cricket one metro since note 9 has band 71 I wanted to try metro in it and utilize that but ofcourse finding out metro locks service to imei unlike cricket does where any phone unlocked will work..but although I couldn't use my metro on my note 9 it did change splash screen and showed the wifi calling which I cant use wifi calling but i am able to hotspot again so that's the bonus for everyone on cricket needing hotspot again try popping in a tmobile or metro sim it holds even after restarting...correct me if I'm wrong on the firmware automatically switching cause the note 9 is a verizon bought phone and had been showing verizon splash screen....diagnose further when I buy new sim to tie note 9 to metro since they apparently pair sim and imei...
Click to expand...
Click to collapse
all us devices contain all carrier's csc.
bober10113 said:
all us devices contain all carrier's csc.
Click to expand...
Click to collapse
It's kind of new to me but I guess the take away for anyone is I've lost my hotspot capability on cricket when I switched to note 9 from note 8 cause changing the apn didn't work with new software like I did with note 8....and now i have regained that on note 9 which was bought through verizon also I'm able to utilize dialer codes again where I lost that too...so if your on cricket or something like that and lost those abilities then just pop in a metro or tmobile sim and restart phone then put your cricket sim back in and your good to go with hotspot and dialer codes again....I just wish cricket didn't whitelist phones capable of using volte where I could get that on my note 9 cause 3g calling has definitely went downhill with low to no coverage anymore on it...my real question is this everyone is talking about flashing the carrier csc to whatever carrier you going to so you have the best and all their perks just seems with latest updates there's no need for it like my note 9 has band 71 but while on verizon I'm sure they disable that band because it's not needed so it seems when you swap sims and forced to restart because new sim is detected and you put a tmobile sim in it automatically turns correct radio bands on for its network...correct or not because I want tmobile just need to know band 71 will be activated when I put a tmobile sim in this verizon bought note 9 and I'll be able to utilize their full network spectrum...cause metro by tmobile apparently only utilises band 2 and band 12 which cuts my coverage...sorry for the long read

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