Has anyone experienced bad or inconsistent LTE speeds on the International S7 Edge Duos while on AT&T? I was out walking the dog yesterday and my speeds were ranging anywhere from 0.3 megabits/second to 12 megabits/second depending on which block I am on. This morning, on my commute to work, I had anywhere from 2 megabits/second speeds or 32 megabits/second speeds depending on where I am on the road.
Is the International not nearly as good with using AT&T band LTE? Is there perhaps an APN setting I should be making? Or should I just learn to live with this?
Thanks in advance
No one has encountered this at all? Perhaps it's emblematic of a potential defect?
Im on att using g935fd, no issue with lte. Im ranging from 15-30 mbps depending on the area. im in boston,ma
in dallas with a 935FD and i've been getting average 29mb down/19mb up... check your APN and also consider testing with another sim card if you have one available.
I'm having the same issue. There is definitely something going on with the Duos. I'm on T-mobile and experience weaker signal (10-15 dBm) on Duos than I get on my 935T sitting next to it. I've flashed several modems, csc's and firmwares. Nothing has helped. Even lost signal last week at a clinic and had to tether of my wife's T-Mobile s7 edge.
VinylJStar said:
I'm having the same issue. There is definitely something going on with the Duos. I'm on T-mobile and experience weaker signal (10-15 dBm) on Duos than I get on my 935T sitting next to it. I've flashed several modems, csc's and firmwares. Nothing has helped. Even lost signal last week at a clinic and had to tether of my wife's T-Mobile s7 edge.
Click to expand...
Click to collapse
It got so bad that I am returning the phone. The speeds I was getting was just too low to make it a useful device.
Maybe its the rom. What firmware you guys are using? I flashed the stock g935f PHN firmware, CSC, AP and then OntheedgeLite UX rom.
There was another posst with OP having similar issue. I have issue as well. But flashing BTU csc ap bl and cp helped me gain better 4g around my home, so I thought problem was fixed. but when I go to poor reception areas and phone is switching to 2g/3g bands, I lose 4g unless restart or messing with sim options switching 4g between sim1 and sim 2.
currently on stock samsung touchwiz rom. BTU cp, csc, ap, and bl
Is it missing the appropriate at&t bands ? I'm looking at note duos as an alternative to the ATT version a day it's meant to be the same chipset and that misses one of the LTE bands.
Sent from my SAMSUNG-SM-N920A using XDA-Developers mobile app
Related
Any issues with the Unlocked version in using it to T-Mobile?
[EDITED for accuracy] Yes - weaker signal on T-Mobile than the S5, with the unlocked international SM-G935FD (dual SIM). This might be due to the metal body around the antenna, or weaker modem.
Dandv, you are an idiot. Quit giving people false information. Your phone does get lte. You have an international version. Just because your phone says 4g doesn't mean your not getting lte. Everyone but the US labels lte as 4g. What the label says in the top right corner of your phone has no bearing on what you are getting as far as the international version goes. Here's how it breaks down international to us version. LTE=4G on international version. H+=What T-mobile calls 4G. H=3G and so on. It's just labeling and has nothing to do with what you are actually getting. If you don't believe me you can switch the network in the settings from lte to 4g and it will change the symbol from 4g to h+. Now, your signal is a whole different issue. A-the modem that came with your phone might not be optimized for T-mobile but you can find a different modem to try and flash via Odin. B-the phone supports all bands from every region. And C-the modem in the s7 might be weaker than the s5. My modem in my s6 is weaker and it's because of the metal body. This is very well known and could be found out if you did some research. Everything that I am telling you can be Googled if you don't believe me. This is suppose to be a helpful forum for people with questions so please stop giving false information.
miller1821 said:
Dandv, you are an idiot. Quit giving people false information. Your phone does get lte. You have an international version. Just because your phone says 4g doesn't mean your not getting lte. Everyone but the US labels lte as 4g. What the label says in the top right corner of your phone has no bearing on what you are getting as far as the international version goes. Here's how it breaks down international to us version. LTE=4G on international version. H+=What T-mobile calls 4G. H=3G and so on. It's just labeling and has nothing to do with what you are actually getting. If you don't believe me you can switch the network in the settings from lte to 4g and it will change the symbol from 4g to h+. Now, your signal is a whole different issue. A-the modem that came with your phone might not be optimized for T-mobile but you can find a different modem to try and flash via Odin. B-the phone supports all bands from every region. And C-the modem in the s7 might be weaker than the s5. My modem in my s6 is weaker and it's because of the metal body. This is very well known and could be found out if you did some research. Everything that I am telling you can be Googled if you don't believe me. This is suppose to be a helpful forum for people with questions so please stop giving false information.
Click to expand...
Click to collapse
I know it's not what was asked. but ZERO issues on ATT network with 935F.
In some regions they dont name it LTE, its Just 4G or 4G+. so if it displays 4G then you are on LTE
Any comments on International vs. T-Mobile version as far as everyday use and performance on T-Mobile? I'm trying to decide which version I should get. I like the absence of bloatware, etc. on International version (though T-mobile probably has the least of the big 4 carriers), and possibly better/more frequent (?) updates.
GeodudeFFP said:
Any comments on International vs. T-Mobile version as far as everyday use and performance on T-Mobile? I'm trying to decide which version I should get. I like the absence of bloatware, etc. on International version (though T-mobile probably has the least of the big 4 carriers), and possibly better/more frequent (?) updates.
Click to expand...
Click to collapse
The international version doesn't completely lack bloatware. My G935FD has a bunch of apps that you can't remove (unless you root the phone): S Planner (a calendar, which keeps begging for permission to display notifications, via another notification!), MS suite (Word, Excel, PowerPoint, OneNote, OneDrive, Skype), Samsung's browser (Chrome is already installed), an Email client, Facebook app that you can't remove if you want to use Metal instead, Samsung Gear (even if you don't have any Gear devices, you can't uninstall it) etc. There are lots of threads on debloating the S7.
I got the Dual sim version using it in hawaii and everything seems fine for me, no changes from my tmobile note 5.
dandv said:
The international version doesn't completely lack bloatware. My G935FD has a bunch of apps that you can't remove (unless you root the phone): S Planner (a calendar, which keeps begging for permission to display notifications, via another notification!), MS suite (Word, Excel, PowerPoint, OneNote, OneDrive, Skype), Samsung's browser (Chrome is already installed), an Email client, Facebook app that you can't remove if you want to use Metal instead, Samsung Gear (even if you don't have any Gear devices, you can't uninstall it) etc. There are lots of threads on debloating the S7.
Click to expand...
Click to collapse
That's not really bloatware at least like it is in the US, but I know what you mean.
Sent Via My Samsung S7 Edge
dandv said:
The international version doesn't completely lack bloatware. My G935FD has a bunch of apps that you can't remove (unless you root the phone): S Planner (a calendar, which keeps begging for permission to display notifications, via another notification!), MS suite (Word, Excel, PowerPoint, OneNote, OneDrive, Skype), Samsung's browser (Chrome is already installed), an Email client, Facebook app that you can't remove if you want to use Metal instead, Samsung Gear (even if you don't have any Gear devices, you can't uninstall it) etc. There are lots of threads on debloating the S7.
Click to expand...
Click to collapse
Agreed, that's a lot of junk I don't need, but at least it's without the carrier bloatware.
How about real-world performance...any differences I would notice (i.e., the pros/cons)?
GeodudeFFP said:
Agreed, that's a lot of junk I don't need, but at least it's without the carrier bloatware.
How about real-world performance...any differences I would notice (i.e., the pros/cons)?
Click to expand...
Click to collapse
exynos are better than SD820 in term of dev and battery live
DUOS on T-Mobile
I just received my DUOS today. Ijbterms of reception, seems about half as weak a signal as from my s6 edge I upgraded from.
My major concern is the 4G vs LTE connectivity. I understand how most of the world dubs LTE as 4G, however my worry is not what tiny icon displays in the corner of the screen, its the performance...
My s6-edge was getting the "LTE" speeds of 15mb/s down but now I'm currently faced with speeds 70% slower.
I've checked in settings under Sim manager and mobile networks, but can't seem to change anything.
I know there was mention of finding the right modem firmware to flash onto the phone depending on region of use, can anyone advise me what I might try switching it to?
DJ.A-BOMG said:
I just received my DUOS today. Ijbterms of reception, seems about half as weak a signal as from my s6 edge I upgraded from.
My major concern is the 4G vs LTE connectivity. I understand how most of the world dubs LTE as 4G, however my worry is not what tiny icon displays in the corner of the screen, its the performance...
My s6-edge was getting the "LTE" speeds of 15mb/s down but now I'm currently faced with speeds 70% slower.
I've checked in settings under Sim manager and mobile networks, but can't seem to change anything.
I know there was mention of finding the right modem firmware to flash onto the phone depending on region of use, can anyone advise me what I might try switching it to?
Click to expand...
Click to collapse
What do you have when you dial *#0011# ?
Hi, any luck getting band 12 to work?
Also if you guys can recommend a good app/way to mesure reception strentgh I have both a 935F and 935T running on T-mobile so I can measure speeds if needed - in my apartment (in NYC) I seem to be getting less signal on the international than on the Tmo (1-2 bars vs 4), but call quality is fine.
Remix22 said:
Hi, any luck getting band 12 to work?
Click to expand...
Click to collapse
The phone has band 12 but it won't connect to it with tmobile. It needs tmobile specific files which the international rom doesn't have which is bs.
Sent from my SM-G935F using Tapatalk
---------- Post added at 12:14 PM ---------- Previous post was at 12:11 PM ----------
Remix22 said:
Also if you guys can recommend a good app/way to mesure reception strentgh I have both a 935F and 935T running on T-mobile so I can measure speeds if needed - in my apartment (in NYC) I seem to be getting less signal on the international than on the Tmo (1-2 bars vs 4), but call quality is fine.
Click to expand...
Click to collapse
There are plenty of signal in the play store. But don't be tricked by bars. Tmobile plays around with bars and dB values. The international version keeps it real. It'll tell you the truest bar value in my opinion. With tmobile, where most phoned would show 2 bars, tmobile will show 3-5 bars on their phone, making you think you have excellent service everywhere
Sent from my SM-G935F using Tapatalk
dandv said:
Facebook app that you can't remove if you want to use Metal instead, Samsung Gear (even if you don't have any Gear devices, you can't uninstall it) etc. There are lots of threads on debloating the S7.
Click to expand...
Click to collapse
Well, I managed to get Facebook off my phone and I'm not rooted
Sent from my SM-G930F using XDA-Developers mobile app
SD here on tmo, no issues. Better reception than on my iphone 6 plus on tmo.
ssgunner20 said:
SD here on tmo, no issues. Better reception than on my iphone 6 plus on tmo.
Click to expand...
Click to collapse
hi, I just got the 935f and still have a 935t, I compared signal reception and strength between the two, see my post in the t-mobile section, oh and I get LTE over band 12. One funny thing is that the 935F seems to connect to different towers than the t-mobile one I have no idea why... http://forum.xda-developers.com/showpost.php?p=66740184&postcount=47
So I have the 935f and here's some things I'm seeing. It does have band 12, though no Volte. When I do *#0011# it shows the phone as being in band 12. Now here's the thing, in band 12 on T-Mobile the speed is nowhere near the speed of Band 4, but the phone seems to want to stay in Band 12. I've used a "connection stabilizer" app and it does seem to "bump" the phone into Band 4. I'm no expert on this stuff, but this is my personal experience as the phone is "stuck" in band 12 otherwise. I'm just north of Detroit, and here are my speedtest results in my house. Keep in mind I have never had good reception in my home, 2-3 bars max.
On 2 bars at time of test in my house
Band 12 down 1.71 Mbps up .12 Mbps
Band 4 with app on down 18.90 Mbps up .19 Mbps
Does someone know a better fix for this than an app, it works but it's a major battery drain .
I just bought the 935F and I am stuck on Edge data. I also have the At&t model of the gs7 edge and I get full LTE and good speeds in the exact same spot. Same sim card, and I believe I'm using the correct APN settings. I want to switch to the international model because at&t ruins this phone with bloatware. I get a lot of lag on the at&t gs7 edge, and no lag at all on the 935F. Now I just need the LTE to work!!
Anyone able to try and help? I did search the forum first and didnt see anything relevant.
do you see 4G instead but not LTE on your 935F? US carriers call HSPA+ 4G (while it's 3G+) so when their branded phones are in LTE they add an LTE (or 4G LTE for tmobile) icon. My G935F always shows 4G but it's actually LTE. You can dial *#0011# to check for reception or download the LTE discovery app to check your reception
Remix22 said:
do you see 4G instead but not LTE on your 935F? US carriers call HSPA+ 4G (while it's 3G+) so when their branded phones are in LTE they add an LTE (or 4G LTE for tmobile) icon. My G935F always shows 4G but it's actually LTE. You can dial *#0011# to check for reception or download the LTE discovery app to check your reception
Click to expand...
Click to collapse
Thank you very much for the reply. I see E for edge data. I think I may have made some progress by changing the APN settings though. I am seeing LTE now, but the speeds are terrible. Nothing close to what I was getting with the ATT branded version of the GS7E.
Anyone know exactly what APN settings the G935F should be using on ATT? I have unlimited data, so I want to be able to use it!
toptekjon said:
I just bought the 935F and I am stuck on Edge data. I also have the At&t model of the gs7 edge and I get full LTE and good speeds in the exact same spot. Same sim card, and I believe I'm using the correct APN settings. I want to switch to the international model because at&t ruins this phone with bloatware. I get a lot of lag on the at&t gs7 edge, and no lag at all on the 935F. Now I just need the LTE to work!!
Anyone able to try and help? I did search the forum first and didnt see anything relevant.
Click to expand...
Click to collapse
It has nothing to do with the APN, but you have to tell AT&T you have an AT&T branded phone and give them an imei of that phone. Or your 935F will not be able to get lte.
Psyscope said:
It has nothing to do with the APN, but you have to tell AT&T you have an AT&T branded phone and give them an imei of that phone. Or your 935F will not be able to get lte.
Click to expand...
Click to collapse
Hmm, Ok thank you. I'll try that now. I haven't been on att in years, and don't remember having to do that but I will now.
Yeah if you don't have an ATT branded phone they will limit you to the 4g network and not the new LTE network. I bought a cheap Motorola LTe phone that was an at&t approved. I gave them its imei, and I started to get lte.
Psyscope said:
It has nothing to do with the APN, but you have to tell AT&T you have an AT&T branded phone and give them an imei of that phone. Or your 935F will not be able to get lte.
Click to expand...
Click to collapse
Ok so I worked with At&t and gave them the IMEI, but still no LTE data
Psyscope said:
It has nothing to do with the APN, but you have to tell AT&T you have an AT&T branded phone and give them an imei of that phone. Or your 935F will not be able to get lte.
Click to expand...
Click to collapse
No, you do not have to give AT&T the IMEI of your 935F phone.
I just got back to the US, popped my AT&T SIM card in my new intl S7e (935FD) and LTE works as it should. I get speeds of >10 Mbs
LTE bands 2 & 17 are used (in my area - Portland)
Not getting full speed LTE
I have the 935FD S7E. I just went to the AT&T store as I needed a nano sim. The guy who helped me did a Speed Test right next to me performing the exact same test. His AT&T S7 was receiving in the mid to high 30's for download speed while I was getting in the mid 20's. He checked the APN, we assumed that I was getting an LTE speed even though no LTE icon showed. However his S7 was receiving significantly consistent faster data rates than I was getting.
Is there anything I can do to resolve this?
This will be the main hindrance for me buying the international version. If someone gets the LTE thing figured out I'm all in
Sent from my SAMSUNG-SGH-I337 using XDA-Developers mobile app
For what it's worth, AT&T LTE problems in my case were caused by custom ROM.
I just got International S7 Edge (G935F), and without thinking, rooted it and installed SuperMan-ROM 1.8.1. In that state I did have LTE formally, but speeds were very bad. Tried turning data on/off, changing APNs - nothing helped. As a result, in some places data connection barely worked (1.0 Mbps down / 0.1 Mbps up), and the best result reported by SpeedTest was around 4 Mbps up/down. At the same time, when I moved this SIM card into older XPeria phone, it consistently showed ~15 Mbps up/down, which was normal performance for me on AT&T prepaid in NYC. Unfortunately, I didn't check LTE performance with the original default ROM on the Edge, but I recorded all versions.
I went back to stock ROM using this German stock firmware. It was possible to switch to English during installation. Other downloads in that thread are dead links. I immediately did official OTA update, and after that, I now have normal LTE performance on AT&T (15+ Mbps).
I am pretty sure that at least in my case, the radio which the custom ROM insisted I have (G935FXXU1APEQ) was the problem. After going back to stock, I have baseband G935FXXU1APD1, which is what I had out-of-the-box.
cozzamara said:
For what it's worth, AT&T LTE problems in my case were caused by custom ROM.
I just got International S7 Edge (G935F), and without thinking, rooted it and installed SuperMan-ROM 1.8.1. In that state I did have LTE formally, but speeds were very bad. Tried turning data on/off, changing APNs - nothing helped. As a result, in some places data connection barely worked (1.0 Mbps down / 0.1 Mbps up), and the best result reported by SpeedTest was around 4 Mbps up/down. At the same time, when I moved this SIM card into older XPeria phone, it consistently showed ~15 Mbps up/down, which was normal performance for me on AT&T prepaid in NYC. Unfortunately, I didn't check LTE performance with the original default ROM on the Edge, but I recorded all versions.
I went back to stock ROM using this German stock firmware. It was possible to switch to English during installation. Other downloads in that thread are dead links. I immediately did official OTA update, and after that, I now have normal LTE performance on AT&T (15+ Mbps).
I am pretty sure that at least in my case, the radio which the custom ROM insisted I have (G935FXXU1APEQ) was the problem. After going back to stock, I have baseband G935FXXU1APD1, which is what I had out-of-the-box.
Click to expand...
Click to collapse
Imgo to try this you flash via Odin?
I got the S7 edge 935FD on t-mobile , I am running Superman room. I noticed that sometimes having full bars of LTE , my connection is really slow I check it with Speed Test and it is under 0.3 Mb. I installed the recommended Modem and Bootloader, and I also try with different CSCs , like XEF,XSG and XSA. At some places with 2 or 3 bars I got 60Mb with speed test , and in others that my old phone get 18Mb , I got 0.2Mb , and my connection is too slow. I tried also other rooms and I am getting similar results. What I am missing?, Could be my phone?, Is this happening to the S7 international versions in the US?
Thank you
APN Setting is not right?
Player04 said:
APN Setting is not right?
Click to expand...
Click to collapse
Definitely APN settings are right, I checked in tmobile website and I also call them to be 100% sure.
Thanks
I am thinking buy 935fd.That is what I afraid. I saw some forum say some 935fd problem with network speed.
Sent from my HUAWEI NXT-L29 using XDA-Developers mobile app
considering
I am trying to decide if I want the 935FD, but am also worried about data speeds in US. does anyone have any newer recommendations?
Voluntario said:
I got the S7 edge 935FD on t-mobile , I am running Superman room. I noticed that sometimes having full bars of LTE , my connection is really slow I check it with Speed Test and it is under 0.3 Mb. I installed the recommended Modem and Bootloader, and I also try with different CSCs , like XEF,XSG and XSA. At some places with 2 or 3 bars I got 60Mb with speed test , and in others that my old phone get 18Mb , I got 0.2Mb , and my connection is too slow. I tried also other rooms and I am getting similar results. What I am missing?, Could be my phone?, Is this happening to the S7 international versions in the US?
Thank you
Click to expand...
Click to collapse
What band is being used when you connect to LTE?
Dial *#0011# when you're on LTE and click STACK 1 if it's in the first SIM slot, and STACK 2 if it's in the second one.
It'll show you Band information.
Secondly, it could also be because of the carrier aggregation stuff, maybe the Exynos variant of the S7E isn't compatible with T-Mobile's Carrier Aggregated LTE network and hence only uses one band for LTE, which will result in poor speeds for the user.
Does anyone here have a UK G950F or G955F on T-Mobile in the USA?
I am curious as to the LTE speeds you are getting.
Currently if I take a N950F on T-Mobile and Speed Test it next to a N950U or a N920T also on T-Mobile, I get a fraction of the speeds.
For example right now Im getting 203mbps download on my N950U / N920T & on my N950F I am getting 50mbps.
During the day when there are more users on we could be getting 40mbps down on the N950U / N920T and be getting less then 10mbps on the N950F.
To make matters worse the connection seems not so stable.
Before you ask this not an iscolated issue. There are several people experiencing this issue.
Matter of fact if you go buy a N950F from Clove in the UK right now and use it on T-Mobile USA it will do this.
Also before you ask, Yes the APN settings are correct, yes we have tried a million and one things, yes CSC(s) are in place
I heard through the grape vine that that also happened on the Galaxy S8 line. So I figured I would stop by and ask.
Thanks in advance for any replies and feedback.
Carrier Aggregation/MIMO? The US unlocked models with qualcomm modems are designed to use mutilple US tower connections while exynos arent.
It's all very carrier specific. T-Mobile certified the Qualcomm S8/Note for their Network, not the exynos. Sure it works, but theyre no saying its 100%.
Varying modem version maybe? Or chipset bindings, Location, Towers, Network Congestion etc.
Right now I have a 950F on T-Mobile in San Diego. Last Modem I flashed was the one included with the Netherlands AQI7 update. I've seen 50-60Mbps and as low as 2Mbps while on LTE.
I've already posted on Reddit looking for advice, but realised I might be more likely to get some good answers here. I’ll start with the TL;DR… What stock firmware (preferably without bloatware) should I flash on a Verizon Galaxy S10+ SM-G975U that’s going to be used in France with a French SIM, to get the best network coverage?
Some more info: I bought a refurbished Galaxy S10+ which was said to be an unlocked model originated in Europe. Turns out it was shipped from the US, and is a Snapdragon-based Verizon phone.
To get rid of all traces of Verizon, I successfully flashed U1 XAA firmware downloaded with Frija (SM-G975U1, XAA, June 1 2021 Security Patch Level) which did get rid of the bloatware, and now doesn't have the Verizon startup screen. Success? Not quite...
On this firmware, 4G signal doesn't seem to get picked up as easily as when it was on the original Verizon firmware. It also shows LTE rather than 4G in the notification bar as it did before flashing the U1 firmware.
My S9+ (Exynos 'F' model, flashed with French non-carrier firmware) gets 4G signal (-115 dBm 25 asu) on a certain spot on my desk. In the exact same spot, the S10+ gets H (-101 dBm 19 asu), and I struggle to find a spot in the house where it gets LTE/4G. This makes me wonder if some required frequency bands aren't supported on this firmware?
I'm wondering whether the U1 firmware was not the best option after all? If U1 isn’t the way to go, what firmware version would you suggest? Should I go back to U firmware instead, or maybe go for the Canadian W XAC unbranded firmware? Not sure if there's even a version of U firmware that doesn't come with carrier branding + bloat...
Basically, I'm looking for stock firmware without carrier bloatware, that'll work well on the SFR network in France, and ideally show 4G in the notification bar. It's actually a surprise birthday gift for my wife too, so I'm trying to prepare it for her so she has the best experience with the phone as possible.
Cheers in advance for any advice! You might help me save this from being a bit of a disaster of a birthday gift
Quick update. I've flashed SM-G975W XAC (unbranded Canada) firmware, and now the phone picks up LTE signal in parts of the house where it would only get E signal whilst on SM-G975U1 XAA firmware. So I know that the Canadian firmware is at least a bit better in my situation.
However, the LTE speeds are still between 25%-50% of what I get on my S9+ Exynos on French unbranded firmware using the same SIM. And obviously the phone still shows LTE in the notification bar, rather than 4G.
I might try going back to Verizon firmware to see if the LTE/4G performs better, which might be the best route to go, even with the bloatware and Version branded annoyances.
Ok, I thought it might be best to post my last update to close this off, in case it helps anyone else who stumbles on it in future.
I was going to do back-to-back tests on U1 XAA, W XAC, U VZW and U CHA firmware, in that order, to see what would work best and give a good 4G signal.
I started with flashing the latest U1 XAA, which had the same poor signal and only showed LTE in the notification bar and not 4G, as before.
Next up, I flashed the same W XAC (Canadian non-carrier) firmware as before, but this time I left my SIM card in the phone. Out of paranoia I'd always removed it when flashing, but when the phone booted up it showed 4G in the notification bar, not LTE like before, and signal strength and speeds were good!
So I stopped there and have stuck with SM-G975W XAC firmware. It seems to have achieved what I want—decent performance on the French SFR network, without bloatware, and correctly displaying 4G—so I decided not to push my luck and stop flashing any more firmware versions, just in case I end up with an expensive paperweight.