[Q] Galaxy Grand duos Network fluctuation in wcdma (3G) mode - Galaxy Grand Duos i9082 Q&A, Help & Troubleshootin

Hi, I am using galaxy grand duos I9082 for last few months. I have a strange issue which was identified recently. When my phone is in 3G mode (WCDMA) the network signal fluctuates a lot and drops to Zero. But no fluctuations is observed in 2G mode (GSM). The same was tested and confirmed many a times .What could be the issue and help me resolve the same.

Related

Problems changing from Edge to 3G

Hi all
my wife and i both have Note 2's ..
mine rooted, hers not
we are both having issues that edge connections to to be the norm for data even when 3g is available..
i'm having to force 3g by setting network to wcdma only when i know there should be 3g
sometimes (after a while) it does go to 3g if left alone, but very rarely
network is Thailand AIS one2call. using the same sim card i had in my old S3 that had no issues
N7100XXDLJ2

[Q] Network Connectivity failure (Dual Sim)

Hi All,
I face a network discontinuity in my GRAND when both the SIMS are active. Calls and messages are not connecting properly sometimes and had to know only when our friends inform us, Facing this same problem in Galaxy GRAND/QUATTRO/S Duos..
What is the use in marketting it as a dual sim mobile when all the dual mobiles facing this problem.
Is there any resolution for this problem?
I am facing the same issue too,may be the latest 4.2 firmware is causing the problem. While using the Data services I am unable to receive calls most of the time.
I had this problem from the initial firmware 4.1.2 as well. Low quality mobiles like mmx, karbonn etc works good with dual sim feature but not samsung
Please check your SIM cards, they may have dirty or worn out connectors. If that is fine, then check your settings. You can set up the phone for dual standby or dial active or data on one SIM and voice on the other etc. Limitless choices that are not available on non branded phones. I have used the Grand in 4 countries now when I travel and across more than half a dozen service providers. Have never faced any connectivity problems on the stock Rom both 4.1 and 4.2
Sent from my GT-I9082 using xda app-developers app
samsung galaxy grand duos
I bought a new sim then too I am facing this problem. I tried sim of another operator, the same problem occurs. I tried setting one sim as GSM only and other as WCDMA only. Then too problem occurs. Actually, the sim which has 3G plan activated has no issues. Problem occurs on the other sim. I have activated dual sim active as well. I have deactivated data on the phone and I am monitoring and seeing no issues till now. But this is not a solution as if you buy a smartphone and cant use it for 3G it is of no use. Please guide me on this issue. This is frustrating me..
Bought g2 on sept 14 from the 5th day it s having network connectivity issue..cant use 2 sim..if only one sim is putted not much pblm..wen goin on 2 sim..network wont connect..irregular network..useless smartphone..no value for money..shame on samsung as other less price mobile phones has no problems at all..i request samsung to take back all grand 2 having these issues..

Tab S 8.4 LTE SM-T705 random disconnects from mobile network

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

Weak signal

I purchase note 5 920A at & t from pakistani markeet now problem is that there weak signal problem ..when i enter into room network does not work plz help me what to do

A50 Network problem in low signal area

While using the phone in an area with good signal coverage, it works fine.
But when the signal levels are relatively low, the mobile data doesn't work/ terribly slow.
Compared this with some Nokia and Xiaomi midrange devices with the same sim (LTE enabled, same apn) but they worked without any issue compared with this.
Anyone experiencing the same issue??
Is there any way I can tweak/fix this??
(Samsung forums suggests resetting phone and it didn't work for me)
P.S : I am using the Exynos model (SM-A505F)

Categories

Resources