Develop Bugs

MDA PRO TMOBILE USA SETTINGS

HI all, thanks here for all your help. I finnaly have my unlock code from T-mobile UK, for 30 pounds, but i think it is workth it.
Now using the PRO as a phone, it is kinds weird to get used to. I live inthe US and i put my T-MOble US sim card in, when i check the settings, i found out for some strange reason that the GSM band it was using was EGSM+DCS1800, i don't know what this band is, but i noticed that i don;t get enought bars, always loosing signal, and i have put the new 1.08 radio rom on it. My SK65 gets better signal.
The only other option i see there for GSM band is PCS1900, so i have manually set it to this. My question is, which band should i be using? whats the diffrence? and when setting up WAP for MMS, do i use WAP1.2 or WAP2.0.
Also does the UTMS2100 mean it will work on Sprints 2100 network?
Thanks.

Search is your friend
All of the Universal forums are full of information about why the MDA Pro is not as useful in the US because it is just Tri-Band. T-Mo USA uses GSM/GPRS 1900 for voice and data. You need to stick to this band alone. Try using WAP 1.2 for WAP. There's no EDGE available on the Uni.
No, Sprint won't work It's different technology using a different standard. You can only use UMTS in Europe, the Middle and Far East. That's why this device is targeted for these markets and was never brought to North America. And it never will be.
Let's hope the successor to the Universal can do it by incorporating the latest technologies prevalent in North America.

[Q] Are any other N7 2013 LTE users having issues with specific carrier SIM cards?

Hi all,
While back in the USA, I was lucky enough to get a new Nexus 7 (2103) 32GB LTE model which shipped with a T-Mobile micro SIM card good for prepaid data access plans. However, I live in the Netherlands and when I tried to use my Nexus with a micro SIM from my provider Vodafone, it was not able to properly list the mobile network operators.
I opened a technical support incident with Google Play services who lead me through several diagnostic steps which included verifying that the tablet is not SIM or carrier locked, it properly recognizes the available networks with other carriers SIM cards (worked with T-Mobile USA, Telecom DE, MTN NG, Rogers CA) it also can list the mobile networks with no SIM in the device. But when a Vodafone SIM is added, it simply doesn't recognize any network operators. It's not a matter of APN settings, as we have verified these are correct, but the problem occurs at a very early level in preventing the mobile networks from being listed.
I believe this to be somehow related to the SIM card/middleware used to communicate with the SIM to the hardware. I see this behavior with the LTE Factory Image JLS36C as well as the Cyanogen Mod 10.2 unofficial deb builds.
Are there any other LTE users that are having a similar problem? Without mobile network access, my LTE model is effectively a WiFi only model and I'd really like to get this fixed.

buckofive said:
While back in the USA, I was lucky enough to get a new Nexus 7 (2103) 32GB LTE model which shipped with a T-Mobile micro SIM card good for prepaid data access plans. However, I live in the Netherlands and when I tried to use my Nexus with a micro SIM from my provider Vodafone, it was not able to properly list the mobile network operators.
Click to expand...
Click to collapse
As has been posted quite a few times already, the US and Europe use different channels for LTE. So a US N7 will not work with all European providers and vice versa. Most probably Vodafone uses one of the LTE channels not supported on the US N7. So you have two choices:
1. Find a different provider that uses the channels supported by the US N7.
2. Replace your current US N7 with an European N7 model.

Guhrasoh said:
As has been posted quite a few times already, the US and Europe use different channels for LTE. So a US N7 will not work with all European providers and vice versa. Most probably Vodafone uses one of the LTE channels not supported on the US N7. So you have two choices:
1. Find a different provider that uses the channels supported by the US N7.
2. Replace your current US N7 with an European N7 model.
Click to expand...
Click to collapse
While the US and Europe do have some variance in LTE bands - we confirmed that the bands used by Vodafone NL are as listed below:
Nexus 7 (2013) Tech Specs (LTE)
Network
North America and Japan:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/2100/AWS (1700/2100) MHz (Bands: 1/2/4/5/8)
LTE: 700/850/1700/1800/1900/2100 MHZ (Bands: 1/2/3/4/5/13/17)
Rest of World:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/2100/AWS (1700/2100) MHz (Bands: 1/2/4/5/8)
LTE: 800/850/1700/1800/1900/2100/2600 MHz (Bands: 1/2/3/4/5/7/20)
Wireless
Dual-band Wi-Fi (2.4G/5G) 802.11 a/b/g/n
We confirmed that Vodafone NL use 4G data enabled in a combination of the 800MHz and 1800MHz bands which are listed as supported.
The fact that my N7 can connect to other mobile networks in Europe with other carrier SIM cards also disproves the need to get a "European" model to connect to a network. There clearly is a problem with the Vodafone SIM and the NA Nexus, but simply blaming it on the channel or bands is not correct. Addittionally, even if the LTE connection is not possible 3G connection via HSPA+ or 2G GSM connection should be possible. The same Vodafone SIM worked with my N7 2013 3G model, which was also from NA, so it is clearly not an issue with the bands & channels.

Have you tried manually changing your prefered network type in testing menu *#*#4636#*#*
Since there is no dialler on N7 deb, I use https://play.google.com/store/apps/details?id=org.freespirit.hms&hl=en
From tablet info submenu, u can also use settings button (3 dots) to manually select radio band

Raverbunny said:
Have you tried manually changing your prefered network type in testing menu *#*#4636#*#*
Since there is no dialler on N7 deb, I use https://play.google.com/store/apps/details?id=org.freespirit.hms&hl=en
From tablet info submenu, u can also use settings button (3 dots) to manually select radio band
Click to expand...
Click to collapse
Thanks for the tips regarding the Hidden Menus application. I've installed it and set the GSM/UMTS band to EURO Band (GSM-900/DCS-1800/WCDMA-IMT-2000) but still not had any luck detecting mobile networks with the Vodafone SIM inserted. After removing the SIM and restarting, performing the same operation to search for available networks shows the four network operators in this region. I'm currently in Germany and in this area it shows
E-Plus
o2- de
Telekom.de
Vodafone.de
If I replace the Vodafone NL sim and try the same operation again, Settings | Mobile Networks | Network Operators - it searches for only a second or two (compared to the 15 or so it takes with no SIM installed) then does not show any networks.
All signs point to the issue being with the SIM chip OS or incompatability of the SIM chip profiles with the Nexus 7 (2013) LTE model. I didn't have any issues with this and my Nexus 7 (2012) 3G version.
In another strange hardware related issue, I have noticed that the Nexus 7 (2013) uses a different NFC stack and does not recognize all of the NFC tags that the 2012 model recognizes. A co-worker with the 2013 Wifi only version ordered some NFC tiles but they don't work with either his or my 2013 model, but work with the 2012 model. Very curious if this is somehow related to the issue that I see with the SIM card problem I am having.
Any other ideas?

Did you find a solution?
buckofive said:
Thanks for the tips regarding the Hidden Menus application. I've installed it and set the GSM/UMTS band to EURO Band (GSM-900/DCS-1800/WCDMA-IMT-2000) but still not had any luck detecting mobile networks with the Vodafone SIM inserted. After removing the SIM and restarting, performing the same operation to search for available networks shows the four network operators in this region. I'm currently in Germany and in this area it shows
E-Plus
o2- de
Telekom.de
Vodafone.de
If I replace the Vodafone NL sim and try the same operation again, Settings | Mobile Networks | Network Operators - it searches for only a second or two (compared to the 15 or so it takes with no SIM installed) then does not show any networks.
All signs point to the issue being with the SIM chip OS or incompatability of the SIM chip profiles with the Nexus 7 (2013) LTE model. I didn't have any issues with this and my Nexus 7 (2012) 3G version.
In another strange hardware related issue, I have noticed that the Nexus 7 (2013) uses a different NFC stack and does not recognize all of the NFC tags that the 2012 model recognizes. A co-worker with the 2013 Wifi only version ordered some NFC tiles but they don't work with either his or my 2013 model, but work with the 2012 model. Very curious if this is somehow related to the issue that I see with the SIM card problem I am having.
Any other ideas?
Click to expand...
Click to collapse
Hello All,
Apologies for the opportunistic first post but I only "discovered" this forum today.
I am facing the same issue as buckofive and was wondering whether anyone has ever found a solution?
Thank you.

ricmartins said:
Hello All,
Apologies for the opportunistic first post but I only "discovered" this forum today.
I am facing the same issue as buckofive and was wondering whether anyone has ever found a solution?
Thank you.
Click to expand...
Click to collapse
Unfortunately, I have not been successful in getting this resolved. I've visited Vodafone several times, but none of their in store personnel have been able to give me any other answer than "it doesn't work" and we also see this with North American Nexus 5 handsets. I've done some addditional testing with other MNO SIM cards with American, Dutch, and German T-mobile SIMs and they work flawlessly and with 4G LTE speed, so it isn't a question of network or band.
The issue is definitely related to the SIM card OS and version. However, Vodafone have been unable to tell me what the SIM vendor is and what the chip operating system is.

Vodafone promised a solution
I have AGAIN asked Vodafone for help and they promised me a solution. I have my doubts ad will post an update next week once i hear back from them.
buckofive said:
Unfortunately, I have not been successful in getting this resolved. I've visited Vodafone several times, but none of their in store personnel have been able to give me any other answer than "it doesn't work" and we also see this with North American Nexus 5 handsets. I've done some addditional testing with other MNO SIM cards with American, Dutch, and German T-mobile SIMs and they work flawlessly and with 4G LTE speed, so it isn't a question of network or band.
The issue is definitely related to the SIM card OS and version. However, Vodafone have been unable to tell me what the SIM vendor is and what the chip operating system is.
Click to expand...
Click to collapse

ricmartins said:
I have AGAIN asked Vodafone for help and they promised me a solution. I have my doubts ad will post an update next week once i hear back from them.
Click to expand...
Click to collapse
Did you hear anything back from Vodafone? They have simply told me they don't support the device and explain that it is due to a North American device, which is simply not true. I've tested with T-Mobile data card from The Netherlands and also from Telekom in Germany and the Nexus 7 2013 gets 40+ Mbps download speeds on those networks. So the issue is clearly related to the Vodafone SIM cards, but no one has been able to give me any insight as to what card OS they are using, so it is very hard to troublehsoot the problem any further.
Two big thumbs down for Vodafone service & support!

Any news on this problem yet? I have exactly the same problem, I can use a KPN sim but my Vodafone sim simply won't work in my US Nexus 7. This sucks, I upgraded to a multisim Red Super subscription to be able to use my new tablet anywhere without having to tether.
I made sure to check which bands the US Nexus supports and figured in a worst case scenario I would simply use 3G instead of 4G. But it won't connect to 3G either

Sorontar said:
Any news on this problem yet? I have exactly the same problem, I can use a KPN sim but my Vodafone sim simply won't work in my US Nexus 7. This sucks, I upgraded to a multisim Red Super subscription to be able to use my new tablet anywhere without having to tether.
I made sure to check which bands the US Nexus supports and figured in a worst case scenario I would simply use 3G instead of 4G. But it won't connect to 3G either
Click to expand...
Click to collapse
I have the issue as well. openend a ticket with Vodafone and directed them to this thread. unfortunately they were thus far also not able to solve it yet. hopefully something will happen, as otherwise I will need to drop Vodafone....
I also tested it with a KPN sim which worked perfectly. two Vodafone sims and a duo sim all had the same issue. Real strange thing is that with the KPN sim I was able to see the Vodafone network. But on the Vodafone sim I wasn't able to see any network. They assured my it was not a 4G only sim card, thus it was also strange the nexus did not pick a 2G or 3G network. In the settings though I could not change the 4G perferred setting to either 2G or 3G. it immediately reverted back to the 4G setting....
All in all, no realy help yet, only confirmation of what is being seen above.

pwvandeursen said:
I have the issue as well. openend a ticket with Vodafone and directed them to this thread. unfortunately they were thus far also not able to solve it yet. hopefully something will happen, as otherwise I will need to drop Vodafone....
I also tested it with a KPN sim which worked perfectly. two Vodafone sims and a duo sim all had the same issue. Real strange thing is that with the KPN sim I was able to see the Vodafone network. But on the Vodafone sim I wasn't able to see any network. They assured my it was not a 4G only sim card, thus it was also strange the nexus did not pick a 2G or 3G network. In the settings though I could not change the 4G perferred setting to either 2G or 3G. it immediately reverted back to the 4G setting....
All in all, no realy help yet, only confirmation of what is being seen above.
Click to expand...
Click to collapse
I wouldn't hold your breath waiting on the response from Vodafone. I've had a ticket open for months with them, and it supposedly has been escalated. I've inquired in person with the so called "specialists" and they simply say it doesn't work with their SIMs. Yet nobody can tell me anything about the SIM, like manufacturer card OS, etc. It is really frustrating to hear this as I work with smart card and SIM middleware developers and if we had a bit to work with we might be able to fix the problem on our own.
I was at the end of my rope and extreme frustrated with them and wanted to cancel my contract, but they said that despite me paying for months of service that I haven't been able to use, that I would have to pay the remaining duration of my contract before I could switch to T-Mobile, which I think is total crap.

dual sim same problem with vodafone NL
I have the same issue. I use a dual sim from Vodafone in my Nexus 5 and Nexus 7. The Nexus 5 does not show these problems, but the 7 does. When I buy prepay mobile data abroad (Europe, Asia, US, Australia), the Nexus 7 2013 C works great with e.g. Orange, t-Mobile, Vodafone etc. But as my cellular subscription is a corporate one, at home I have to stick to wifi, for almost 2 years now! (I bought the 7 in Australia about 2 years ago). And yes exchanging sims between the devices does not make a difference. The combination vodafone NL sim + nexus 7 does not provide mobile data.

Best firmware for note 10 plus USA in France?

Hello,
I have a note 10+ of US origin with snapdragon 855, I want to use it in Europe (France) in order to have the best possible network.
I installed the firmware N975U1 XAA but I don't have 4G + (I only have the LTE logo, no LTE +), a lot problem of concern for notification with my mailboxes.
So I would have liked to know if there was a more suitable firmware for France in order to have the 4G logo which replaces the LTE logo? and maybe be able to receive 4G +?
I know I cannot install the XEF firmware because the processor is not the same.
Thanks for your help

Hello ,
I'm surprise ! Your provider ? Your mobile network coverage ? If you have another mobile , full XEF , what result on the same place ? switch off !

I use the Orange network. the network is the same with another mobile except that I receive 4g + while there it is simple lte. I know there is normally lte + in us. so know if it is possible to have a firmware allowing to have 4g +. after maybe nothing to do but I receive with great difficulty the notifications gmail and other mailbox. I have however reinstalled everything several times but no change.

does anyone know if this is possible? or a tweak that allows you to do it? thank you

4G, 4G+, lte, lte+, lteA, 5G, etc, are sevice provider dependant, so, you will get what the carrier gives you, no way to obtain services that other carriers provide

I'm using a Canadian Note 10+ (N975W) here in the UK which is working flawlessly, I have full 4G+, VoLTE & WiFi calling, the only thing that doesn't work is Samsung Pay which I knew anyway, and as I use Google Pay, it isn't a issue :highfive:

Firstly search the bands that your phone uses with its model name on GSM arena, then the ones used by the carriers you'll need for both countries.
Then with the RNC mobile app or with Activity Launcher, search "hidden" and launch the one under "paramètre d'appel"
You'll be able to see what bands are actually used by your current carrier.
Since the protocol names and frequency aggregation hints are carrier specific, you may already use 4G+ without knowing.

Hello, I'm going back to the topic because I still don't have a solution at the moment. I had the opportunity to have a French Note 10 alongside with the same operator, I had the "4G +" (LTE+) logo, the speeds were tested at 300 mega / sec. With my 10+ USA rating stuck on the LTE logo I only get 50 mega / sec ...: /
according to my research this is a carrier aggregation problem.
How to unlock it?
I just tried the Canadian rom and the same, no support for LTE + or 4G +, the speeds are as low as with the US version

Question Will UK variant work on AT&T?

I need unlocked/dual sim. If I buy the UK variant, SM-F926B/DS, will it work on AT&T network? Will I get 5G/LTE? Will it update? Thanks!

It should. The spec sheets for the phone does not show any variance in the radio's and frequencies they are compatible with in regards to where it's sold other than the ROM's with the carrier configurations pre-configured.

Doesnt the US version have a mmwave 5g antenna the UK version doesn't have?

If correct, how would this affect me? Thanks!

I would be very careful. In 2020 I bought unlocked Note 20 Ultra in Czech Republic and brought it to USA to be used on AT&T network. Unfortunately the 5G bands are not compatible and I didn't get 5G at all. Otherwise the phone works fine, you get LTE speeds and little bit spotty coverage. If you can live with that, you will be ok.

I use an international note 10+ n975f in USA on ATT and my line was shutoff last month because of a new company policy that will be fully in effect Feb 2022. Only u/u1 variants will work on their network...must have volte working and be a device provided thru ATT...not imported. I recommend a different carrier.
These phones will keep working on AT&T after the 3G network shutdown
AT&T will shut down its 3G network and require HD Voice support by February 2022. Check this list to see if your phone will make the cut.
www.xda-developers.com
It sucks. They did send me a free note 9, but...I need a new carrier.

Interesting. I’m on an unlocked, dual-SIM, Note 8, N950F which came from Singapore. I don’t remember how long I’ve had it, but I think it’s been around 5 years. It’s not a 5G device, but it is 4G/LTE and supports VoLTE. I think AT&T knows about it because I think I had to provide them with a S/N, M/N, and IMEI years ago. I’d like a 5G device and this one isn’t holding a charge for a full day anymore, but otherwise works fine on AT&T for now. I’d really like to stay with an unlocked, dual-SIM.

Question SM-F936B/DS not having 5g support in Europe (estonia)

So like the title says, i dont have 5g in mt 2k€ phone, what gives? is samsung lazy with the firmware updates? or is the international unlocked phone actually hacing some locked bands? any way to unlock n75/n77 bands? i tried my sim in my australian netgear m6 pro in estonia in my location and it works perfeclty, other phones, older samsungs also work fine, but fold 4 just doesnt seem to find anything, besides competing isp tower and saying unknown frequency and 5g sa, if im not mistaken the int fold 4 should have everything? sa, nsa, all bands, etc? no? anyways maybe someone has a solution for me what firmware to flash or what to do, i rma'd my phone but i am 99.9% sure that samsung validated "repair" center wont be able to do anything like that as i have had different issues with different samsung phones before and they wont flash you anything than baltics firmware

Fold4 has 5g and it's working perfectly no need a firmware update. Witch csc are you using ? Witch firmware ? Did you check and search your provider in settings ? 5g/4g/3g/2g is selected ?
I'm not living in a big city in France and have great signal

5G from Orange Flex (Poland) works perfectly.

The same model. No issues. 5G is ok in Germany.

Same here. Latvia, 5G works fine.

the issue is in the firmware side, one of the operators doesnt work, every other operator 5g works, already got samsungs answer that they are working on a fix for it