Does the Zenfone 9 officially "support" T-Mobile 5G? I believe the answer is NO, and that's why 5G is disabled by default. With 5G enabled on my phone, I frequently encounter a complete lack of mobile data, even though the phone is showing full signal. I believe there are certain carrier aggregation combos that the phone is using, that T-Mobile doesn't support (and/or vice versa).
Users on Reddit have noted that the following two 5G CA modes do not work on this phone:
* n41 NSA
* n41_n71 SA CA
https://www.reddit.com/r/zenfone/comments/y47z51
It seems like if you're going to try to use this phone on T-Mobile you NEED to disable 5G.
I have also seen people state that if you are rooted, you can edit QPST (carrier_policy.xml) to disable n41 entirely and it mostly "solves" the problem.
Seems like this is a pretty big problem with this phone that no one is really talking about.
I get T-mobile 5G, but only after dialing *#*#ENHANCED4G#*#* and toggling the 4G Calling option after each reboot and I don't need to reboot that often.
T-mobile US VoLTE 5G mobile data instability fix with root
I was having problems with mobile data through T-mobile in the US that I was have to disallow 5G or else the carrier connection would drop. Sometimes it would reach 4G+, but it would drop the mobile data connection all the time, especially when...
forum.xda-developers.com
Another update.... Lots of people tell me their calls to me go directly to voicemail, so I did some testing. Sitting at home, with very very good 5G coverage, about 25% of the time, when I placed test calls to myself (from another cell phone) the phone would not even ring, just go directly to voicemail. Same problem on wifi calling on my rock solid 1gbps/1gbps network.
If I disable 5G (use 4G only), the problem is solved.
This phone DOES NOT properly support T-Mobile 5G.
I have T-mobile and have been using Zenfone 9 (US version which is C version I believe).
Phone does support 5G for T-mobile, as you can see below. What Zenfone does not support is mmwave 5G which are on bands 258, 260 and 261 from Tmobile. That is also known as 5G UC (ultra capacity) which is usually 250-300-350Mbps network speed.
Just earlier today I measured my speed in Chicago where I had 5G+, and it came back at 192Mbps.... Now which is exactly this 5G+ band, I have no clue, but all above listed is my personal experience, and I live in Chicagoland...
Check your coverage area, and try to get Tmobile to provide you exact information on what the network band is used for the area where you live... That may be the resolution to your issues where you do not have 5G...
Btw: where I live there is just normal 5G but speeds from Tmobile are about 30Mbps for 5G and on the 4G I get about 20Mbps... I can tell you for a fact there is not much difference in what that 20Mbps does for you, while 5G is just tiny bit faster that is all...
My next phone will be Samsung S23+ or Ultra because Samsungs support ultra capacity 5G and are certainly faster on 5G UC than anything I have seen before on mobile phones.
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Related
I've been searching high and low for a phone that will work on both T-mobile and AT&T. The Galaxy Nexus was going to be my choice, but it has way too many problems (screen being the biggest issue).
I found this version of the Razr Maxx which says that it has bands for both AT&T and T-Mobile. My question to you guys is this: If I buy this phone, will I be able to use it and get full 3G (HSPA+) speeds on either carrier?
http://www.clove.co.uk/motorola-razr-maxx
Thanks!
After doing some more research, it seems that the phone has to have 1700/2100 bands in order to work on T-Mobile.
The phone has 2100 band. Does this mean that T-Mobile 3G HSPA will work only when the area has that band, or not at all?
That model runs on :
GSM/GPRS Yes
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Frequencies850/900/1800/1900 MHz
and/or
3G/HSPA Yes
Frequencies2100/1900/900/850 Mhz
So YES, that model WILL WORK on ATT/TMO. Both companies have roaming agreements with each other and other companies which would allow your device to work if and when you are within a coverage area. NOT ALL features may work in certain areas AND data may be a certain speed in 1 area and in another it may be MUCH MUCH SLOWER due to the fact that it is using your 2G/GSM bands because there is no 3G/HSPA aka HSPA+ aka 4G (aka by ATT and/or TMO). This particular model CANNOT AND WILL NOT ever get true 4G/LTE.
Hope this helps...
Thanks for the answer. After doing a lot of research, I've learned that it WILL work for AT&T 3G/"4G" speeds, and will NOT work for T-Mobile 3G/"4G" speeds.
Reason being is that even though it has the 2100 band, it doesn't have the 1700 band, which T-Mobile requires for full HSPA speed. It uses one for uplink and the other for downlink. So even though it has one of the bands, I'll never be able to get full speed 3G on it.
ajm786 said:
Thanks for the answer. After doing a lot of research, I've learned that it WILL work for AT&T 3G/"4G" speeds, and will NOT work for T-Mobile 3G/"4G" speeds.
Reason being is that even though it has the 2100 band, it doesn't have the 1700 band, which T-Mobile requires for full HSPA speed. It uses one for uplink and the other for downlink. So even though it has one of the bands, I'll never be able to get full speed 3G on it.
Click to expand...
Click to collapse
after many years of following this stuff, and as a user of both tmo & att services, i must say you are exactly correct! i vaguely recall reading about a pentaband phone in development that would do 3g on both services, but lost track of whether it ever came to market
edit: turns out pentaband phones exist:
forums.androidcentral.com/android-hardware/170487-pentaband-phones.html
i'm surprised the RAZR wasn't developed as penta...
I need some technical help; I want to purchase a SONY xperia SX or praying a 850/1900 shows up soon as I doubt the nexus variant will be this small (if it even will come).
However the spec sheet shows that:
LTE 2100 (Band I)
HSPA+ 800 (Band VI), 800 (Band XIX), 2100 (Band I) GSM 850/900/1800/1900
I want to use the phone on AT&T HSPA which is Band II (1900) and Band V (850) <-this one
This WONT work right even though Band VI and XIX are narrower in TX/RX than Band V? I don't want to spend $900 and be stuck using this phone on 2G/EDGE only. Stupid bands.
please forgive me as I posted in the arc s q&a but I never got a reply. i figure there are enough technical minded folk here that can answer my question.
T-Mobile USA
Similar question as OP, except for bands on T-Mobile (1700MHz & 2100MHz needed for 4G). I use an SE Xperia Ray (ST18a) on T-Mobile US, but only get 2G. It is adequate for now. Was wondering if I would be losing ALL data functionality or might gain some with the Sony Xperia SX SO-05D.
Thanks!
I have one!
I live in Japan and have just purchased an SX.
If there is anything I can do with the handset to answer your questions let me know how.
I am experienced in the fact i can follow forum instructions quite well (have rooted/Jailbroken/flashed custom firmware etc on mine and my friends' phones) but a newbie in the fact I have never coded, made my own ROMs etc.
As this is a Japan exclusive phone I really want to know if I am going to be able to flash custom ROMs etc? It seems there is already a "one-click root" on the Japanese forums but CWM isn't fully working yet and i don't know if they will develop ROMs or port CyanogenMod to it.
Seeing as SE are really unreliable with updates I would like to have a failsafe in case they dont release any. How would I go about porting CM10 for example myself? Is it something only an experienced coder can do?
Many thanks in advance.
As I previously wrote: http://forum.xda-developers.com/showthread.php?p=39144776#post39144776
I have been using an SX on AT&T in the USA for a couple months. LTE does not work but HSPA seems OK. Using speedtest.net, I have seen over 4 Mbps but usually it is much closer to 1 Mbps in practical use. That's a far cry from the theoretical maximum for HSPA, but it's pretty fast.
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I'm seriously considering the LG G5 Model RS988 that you can get on Amazon because it's cheaper and easier to get that at AT&T or Best Buy, but will that version work with AT&T LTE Bands? AT&T LTE bands are 2,4,5,12,29, and 30. I see that the RS988 model doesn't have bands 29 and 30. Will that affect AT&T LTE performance? Please let me know. I want to get the phone in the next day or two. Thank you in advance for your help!!!
You can always check the bands that the device supports, though, yes it does.
But is band 29 and 30 critical for LTE on AT&T?
junodragon said:
But is band 29 and 30 critical for LTE on AT&T?
Click to expand...
Click to collapse
No its not just don't change your imei from the phone you have right now
I wasn't going to change anything. I was just going to pop in my nano-sim from my Iphone and it should work automatically right? Or do I need to do anything else?
junodragon said:
I wasn't going to change anything. I was just going to pop in my nano-sim from my Iphone and it should work automatically right? Or do I need to do anything else?
Click to expand...
Click to collapse
Nope. That's the beauty of GSM carriers.
also it has band 17..... which Att uses alot too, which is used lot in southern Michigan where I lived, but I use Cricket wirless which uses the same towers, I ordered my RS model from Amazon about hour ago and will be here tomorrow:good:
2003vstrom said:
also it has band 17..... which Att uses alot too, which is used lot in southern Michigan where I lived, but I use Cricket wirless which uses the same towers, I ordered my RS model from Amazon about hour ago and will be here tomorrow:good:
Click to expand...
Click to collapse
Just received mine off Amazon this morning and confirm after changing the apns my LTE is working awesome! Faster then my 6S was.
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Sent from my RS988 using Tapatalk
No LTE love for me...
I would love my RS988 to get LTE on ATT... I switched from Cricket which has LTE on it, to ATT GoPhone and I only get a max of HSPA+. I can scan for networks and click on ATT LTE but it just fails to register. ATT support said they cannot force it to work because their system shows my IMEI as an unknown manufacturer. ... what?
I already have the same APN settings as listed. I would LOVE some help with that!
I have been testing and also read on official telegram group that carrier aggregation (4G+ or LTE-A) is not enabled in Europe.
Will there be any fix for it on future updates? Phone is listed as CAT16 but its working as a CAT4.
Any idea? Was Poco community manager on forum? Would be nice to know if Pocophone will be CAT16 in Europe or just CAT4.
zgotenz said:
Any idea? Was Poco community manager on forum? Would be nice to know if Pocophone will be CAT16 in Europe or just CAT4.
Click to expand...
Click to collapse
yep, it's quite slow and I hope they'll fix it with an update cause compared to my Mi A1 I'm not getting full-speed LTE experience, only slow 4G mode. band 3 actually, no band20:
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meltbanana said:
yep, it's quite slow and I hope they'll fix it with an update cause compared to my Mi A1 I'm not getting full-speed LTE experience, only slow 4G mode. how did you check and find out it's cat4 only?
Click to expand...
Click to collapse
With *#*#4636#*#* you can see connected cells, or some apps for cell monitoring, it doesn't use never more than one band (EARFCN is the frequency of band used). Could maybe be a CAT5, that it's like CAT4 but supporting MIMO 4x4, but the most standard is CAT4. CAT6+ are all LTE-A with carrier aggregation, what Poco doesn't support in Europe bands. (some info in http://main.rfassurance.com/?q=LTEUeCategory )
Also I work on mobile network engineering, so I have some info from network, but it can be easyly checked from phone, no network aggregation = no 4g+ or LTE-A
my problem was solved by a call with three austria service line.
in fact they didn't get band 20 frequency by auction, only 1800 and 900 for volte calls only.
https://www.rtr.at/de/tk/FRQshare
so, I'd have to change my provider (telekom or t-mobile or a sub) to get band 20.
meltbanana said:
my problem was solved by a call with three austria service line.
in fact they didn't get band 20 frequency by auction, only 1800 and 900 for volte calls only.
https://www.rtr.at/de/tk/FRQshare
so, I'd have to change my provider (telekom or t-mobile or a sub) to get band 20.
Click to expand...
Click to collapse
It's not related to the lack of carrier aggregation for Pocophone in Europe. My provider uses bands, 3, 7 and 20, in a cell with the three bands and that allows carrier aggregation between all them in any order, doesn't work at all while works with another phones.
Btw, installed new MIUI10 open beta, and problem is still there.
@ PocoCommunityManager are you there? Any info?
zgotenz said:
It's not related to the lack of carrier aggregation for Pocophone in Europe. My provider uses bands, 3, 7 and 20, in a cell with the three bands and that allows carrier aggregation between all them in any order, doesn't work at all while works with another phones.
Btw, installed new MIUI10 open beta, and problem is still there.
@ PocoCommunityManager are you there? Any info?
Click to expand...
Click to collapse
There is not 4G+ for Poco in Europe like on most xiaomi phone, stop to ask.
I don't think asking is a problem, Pocophone lists the phone as 4g+ in Europe (example: https://www.poco.net/es/specs/ or https://www.mi.com/es/pocophone-f1/specs/ ), so we ask for it.
SD845 allows it, probably it's a fw thing, not hw.
zgotenz said:
I don't think asking is a problem, Pocophone lists the phone as 4g+ in Europe (example: https://www.poco.net/es/specs/ or https://www.mi.com/es/pocophone-f1/specs/ ), so we ask for it.
SD845 allows it, probably it's a fw thing, not hw.
Click to expand...
Click to collapse
I mean, there is 4g+ but only in special conditions, very rare: it's as if it were not there.
Any chance someone from Poco team could answer this? Other phones using perfectly 4g+ and Pocophone fake CAT16 doesn't at all?
My internet is slower on pocophone than in my last phone, Xiaomi mi a2. And both have band 20, then i thing that is a rom problem.
I think more band combinations are available with MiUi 10 because after the update it's showing me 4G+ on a network.
I'm also having the same problem in Europe. It just wouldn't connect to 4G+, not like on other phones. My operator supports 3+20 and 3+7+20 band carrier aggregation. LTE Discovery app shows that the phone is always connected to band 3 only.
Up !
I wrote about this problem in the main pocophone forum and to be honest there is no real official reply. Some people wrote that CA is disabled due to pocophone not buying proper licences from Qualcomm.
It's difficult to say how accurate this explanation is. One thing is definite, they advertise pocophone as LTE cat.16 capable and at the same time they disable this feature completely and limit capabilities to LTE cat.4 (not even cat.6 ....). This is not what you call honest marketing. More like lying about you product capabilities. I think CA happens but only in India or in some extremely rare cases in some other countries, especially if certain phone companies offer CA on frequencies similar to indian frequencies.
No developer can activate this option? With a custom ROM or something? The sd845 supports this though!
Any update?
they are not interested as usual. flagships in Xiaomi's term: "yeah it's fast but that's all. buy it then don't ask CAUSE IT'S FAST OKAY?"
Why is this thread inactive? I live in Greece where carriers use 3 7 and 20 for 4g although poco is always connected on 3 as stated. Has anyone tried to enable 3CA using QPST?
I usually get connected to band 3 or 20.
I'm in Spain. To make sure I'm using band 20 I switch from 4g to 3g and back to 4g Enmidiately. Screenshots attached.
When i bought the Edge 30 Pro i was promised 5G, but it never connects to 5G.
I have a ipone with 5G, a samsung with 5G, and they can connect to 5G on the same spot. With 200mbps or more
The edge 30 Pro only to 4g+ and maks 80 mbps. I was reading at the lenovo motorola forum that some had to wait for the 5G update? Not sure what that means:
English Community-Lenovo Community
I can see 4G/5G network option in preferred network. (same line)
My sim card is 5G ready. Is there something i missed here?
vargens said:
When i bought the Edge 30 Pro i was promised 5G, but it never connects to 5G.
I have a ipone with 5G, a samsung with 5G, and they can connect to 5G on the same spot. With 200mbps or more
The edge 30 Pro only to 4g+ and maks 80 mbps. I was reading at the lenovo motorola forum that some had to wait for the 5G update? Not sure what that means:
English Community-Lenovo Community
I can see 4G/5G network option in preferred network. (same line)
My sim card is 5G ready. Is there something i missed here?
Click to expand...
Click to collapse
Check if the Moto Edge 30 Pro can use the bands from your SIM card carrier.
vargens said:
When i bought the Edge 30 Pro i was promised 5G, but it never connects to 5G.
I have a ipone with 5G, a samsung with 5G, and they can connect to 5G on the same spot. With 200mbps or more
The edge 30 Pro only to 4g+ and maks 80 mbps. I was reading at the lenovo motorola forum that some had to wait for the 5G update? Not sure what that means:
English Community-Lenovo Community
I can see 4G/5G network option in preferred network. (same line)
My sim card is 5G ready. Is there something i missed here?
Click to expand...
Click to collapse
Select the '5G' option in - "Setting > Network and Internet >Internet > Sim setting > preferred network type " .
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