Hi
Anyone else get random disconnects from mobile network? My device says H+ has a good signal but can't transfer data. Enabling/disabling flight mode fixes. I believe it's linked to cell handover or LTE <--> WCDMA handover. Does not do it if device is stationary. Sim works fine in my xperia z3, likewise sim from Z3 (different network) has same issues when installed in TAB S.
To complicate things, I have also seen issues with BT tethering, using phone for data transfer when device in this non working state. Again, in/out of flight mode fixes. WiFi works just fine.
Device is latest stock firmware, not rooted because I like OTA, and have no time to fiddle these days.
Just switched it to WCDMA-only for a test tomorrow. I commute same route by train each day.
Really annoying. Afraid tab is headed for fleabay if I can't solve. Beginning to think it's a designed-in Samsung issue. [emoji20]
Nigel
I am experiencing the same issue with my LTE signal. it says 4g with 2 bars of signal then suddenly the arrows stops so transmission of data also stops then airplane mode sometimes no longer work. i would have to put the device to WCDMA only then back to LTE.. I can force my device to use LTE only bad sadly the signal drops almost 1 minute after connection
Is your device exynos based or snapdragon. There are two variants doing the rounds with the snapdragon only in the US. On exynos based devices, an Intel LTE chipset provides the LTE connectivity. I believe the US version uses the (faster and better) snapdragon due to a lack of LTE band support in the frankenstein exynos/intel solution. I wonder if the intel lte chip does everything or if the exynos is left to do 2g/3g?
I have disabled 4G on my tab s and the random disconnects appear to have stopped. Did not buy a 4G tablet to have to disable 4G to make the ruddy thing usable though!
Device is also very jerky in comparison to my snapdragon based phone. Not enjoyable to use really. Prob due to all the junk (touchwiz) that samsung shove on it. Its a huge shame because I love the design and build of it, as well as the elegant way in which the stock cover attatches. Good hardware let down by very poor software for the most part.
I think i'll give up on it as a bad job, shove it on ebay and buy a Z3 Tablet Compact instead which is snapdragon 801 based.
Nigel
*#0011#* Service Mode SM-T705
Hi
Been fiddling with band settings in the service menu in order to solve this issue.
See: http://forum.xda-developers.com/galaxy-tab-s/help/unlock-aws-tab-s-8-4-lte-t2860001
I have disabled the 2G,3G and 4G bands that my network does not use - at least it will save the device from hunting for stuff that it is never going to find. Of course, it will need to be re-enabled when I go abroad.
Will see if it makes any difference. One thing it is useful for is preventing the device switching from LTE to 3G where the LTE signal is marginal, and the 3G signal strong. Just disable the 3G band, and the device is forced to hold onto the LTE signal. Its also useful if you have a tablet and thus find 2G useless. Disable all the 2G bands and the device is prevented from connecting to 2G networks. It will then hold onto that 3G signal as much as possible rather than dropping down to a stronger 2G signal.
Nigel
I have the exynos version of tabS 8.4.. this fooled me when I bought my device since I was hoping for a Snapdragon version.. but too late. I had to live with this.
what I normally use is *#2263# same with my galaxy note3.. I disable the wcdma and gsm. so forcing the device to LTE only. but this problem is that data transmission drops frequently.
when I tried what you said. signal seems to be better.. I'm still testing it out. thanks for this!
*update. same problem but less frequent.. so still crap:crying:
Guys
Possibly related is the S5 DUOS phone is also reporting issues with dropouts on LTE.....users are having to reset or enter Airplane mode to 'reset', could be a common chipset/firmware/modem issue perhaps.
So... I fixed my issue by buying a Sony Xperia Z3 Tab Compact.
Superb device, and so so so much faster than my Tab S + battery lasts much longer. Not had it long, but some initial thoughts here:
http://forum.xda-developers.com/showpost.php?p=56721334&postcount=11
Tab S 8.4 LTE (Exynos version) on fleabay soon!
Rather expensive mistake, and my final Samsung device for a while I think.
Nigel
it's a LTE band problem ; this is how to fix it
hello
first before u do anything , you have to look for the LTE frequencies used by ur provider , for example here in Morocco my provider Orange works on 800Mhz , 1800 Mhz and 2600 Mhz , which i LTE B3 ,B7,B20 .
So , i had to select only those bands only in the service menu (*#0011# : Back Back /UE setting & information/ Setting / Protocol /NAS/Network Control/Band Selection/[1] LTE BAND
All you need to select in the service menu is the Bands used by ur provider to avoid lost of network by ur Tablet when it s switching between bands which causes rebooting everytime .
i hope it works for u , because it works just fine for me
Im leaning towards the 8.4 version, since i think the 10.5 and 8.4 all have the same processors. Im trying to decide between lte and wifi only based on two factors : performance and lte usability.
i did some research but i cant seem to find a consensus on which processor is better, the wifi only exynos or the lte qualcomm.
I have at&t and i get free hotspot on my phone. I also have a big discount so an lte tablet would only be 5 dollars a month on my plan, but of course the lte tablet costs more. Will there be an internet speed performance difference in using a tablet with built in lte vs just using wifi off of my samsung note edge? I know lte gets up to 50mbps, so what quality connection do i get on wifi when using an lte smartphone as my source? Would both connections give me identical lte performance? Im just trying to figure out if there is a point at all in paying those 5 dollars a month.
thanks all for your help.
Well I do know that WiFi on the tab s can pick up WiFi signals that are very far. I have the wifi T800 and sometimes use my computer hotspot and it works fine. I haven't tryed it on a phone though but I have not seen any speed differences on my network and its always a steady 2mbps ( how fast my WiFi is lol). The exynos chipset on the WiFi tab s lags here and there but not much. I haven't seem much snapdragon or anything else but that might be better then exynos.
To answer your questions and make things easy here.
As from my experience there's no speed performance difference in using a tablet with late or WiFi coming from an hotspot. So what ever speed is putting out is mostly the same with the tab s.
Depending on lte speeds, it may be slow or fast depending on where you go. But 10 Mbps should be fine if the speeds are somewhat slow. But idk if your plan is unlimited data, so using hotspots will use a lot of data when using a hotspot.
You can try the WiFi one first and maybe (not sure) if of doesn't work out for you.
All the best!
my plan isnt unlimited. Are you saying that the tablet will use more data out of my plan while piggybacking off of a hotspot than having its own lte connection?
darkleafar said:
my plan isnt unlimited. Are you saying that the tablet will use more data out of my plan while piggybacking off of a hotspot than having its own lte connection?
Click to expand...
Click to collapse
From my guess, I think hotspots will use more data since a device is connected and the phone is feeding out internet/WiFi to the tab s with it being connected. From what I heard hotspots use more data vs an lte itself. That's my best guess and hope this helps! How much data does 5 bucks a month get you?
^^^^ hes correct. Hotspots or any kind of tethering use a ton of data. More so then LTE. Without a unlimited plan I wouldn't recommend it as your going to hit your data cap quite fast.
Just recently picked up the exynos version for duo sim purposes. No issues except signal strength/reception .
I'm not dropping calls or anything but internet speeds are slow compared to everything Im coming from.
Does the snapdragon version offer significantly better signal/reception compared to the exynos? I don't care for oneplus/pixel devices so my dual sim needs are limited.
I'm getting 1-2 bars vs full. I knew beforehand I would lose some before purchasing.
I've owned an A50 for a year, on Comcast with the newest router XB7. After running speed tests with my A50 and iPhone 8 plus. The A50 gets 330 down speed and the iPhone 8 gets over 600 both tested on the 5ghz side. None of the phones are wifi 6. I also own a Samsung S5E tablet that also gets 330 on testing. Can some explain to me why that is? Thanks
Can someone at least post the max speeds you get on a 5ghz network
Thanks
The phone is a Xiaomi Redmi Note 11, and its WiFi is somehow capped at about 48Mbps. Do note that there is nothing wrong with the WiFi networks I test with, they're all Fibre connections that go above 100Mbps with different 2.4GHz and 5GHz APs (most importantly, another flagship Xiaomi phone I have does get those speeds).
I can't figure out why it can't go above this speed, I've tried everything I could so now I would like to know if there are some apps or such that display diagnostic data which would make it easy to pinpoint what exactly is related to this speed limit. The phone should in no way also pose a hardware limitation, it's rated for AC WiFi networks and the Snapdragon 680 should be more than enough.
What's funny is I have a Redmi Note 8 as well, and it has the same exact issue. It also can't go above 48Mbps.
One thing I noticed after browsing through that phone's threads online is that it used to be a Bluetooth and 2.4GHz issue. So I tested this with my Redmi Note 11, and doing things like changing the GPS WiFi/Bluetooth scanning on while turning off Bluetooth thereafter and not doing all that gets the speeds from 36-41Mbps to the 48Mbps theoretical 'limit'.
It may very well be connected to sharing the wireless hardware in the phone with other features, and the OS is somehow limiting the WiFi speeds to get things done.
In any case, TL;DR what apps or resources can I use to diagnose WiFi speeds on Android (preferably MIUI), which would hopefully also include other wireless diagnostics information to probe the relevant causes as to why my Redmi phones don't go above 48Mbps?