Galaxy Tab S7 Plus Wifi-Problem - Samsung Galaxy Tab S7 / S7 Plus Questions & Answer

Hi!
I hope I haven't missed an already existing thread, but I hope, I can get help here
I just got my S7Plus tablet, but somehow the WiFi doesn't work correctly as it sometimes sees networks, sometimes it doesn't...
It really seems very random
It sees (and connects) to my home-Wifi (2,4Ghz)
It doesn't see my parents's WiFi (2,4Ghz)
It sees my Hotspot-Wifi (Samsung Galaxy Note 10Plus) only on 5Ghz
When using Auto-Connect in Hotspot-options, it sees it (only under "Autoconnect") but can't connect
I tried:
- reset network settings
- erase known networks
- restart
- clean cache partition
- started in safe mode
- factory reset
But to no avail, nothing changed...
Does anyone have an idea, what to do?

Related

Bug: When 3G is enabled, Wi-Fi fails

I have noticed that all of a sudden in the past few hours my device has started to get very hot and when 3G is enabled the device suggests that all Wi-Fi connections are not in range, but when I dsable the mobile data, Wi-Fi connects fine, I was running the official LPM rom, and I decided to update to the latest release to see if there was a problem with the modem files, but the problem is still there on the latest rom.
Is this a known problem with the S2, or have I just got a faulty device?.
*UPDATE*
For anyone who may come across this problem, I have managed to fix it by doing a factory data reset.
If you want to try this yourself, then goto: Settings > Back up and reset > Factory data reset, then click reset device, (I didn't need to format if you are wondering)

[Q] Samsung Galaxy SIII (GT-I9300) International Crashing And Rebooting

Hi, I'm having a curious problem with my S3 and I've been unable to solve it. I watched the "noob" video and tried searching these forums as well as a google search with various combinations of the wording for my problem. Nothing matching my issue turned up, I hope I didn't miss anything.
I recently bought a S3 second hand (yes, i know, i should have known better). It was rooted and running some kind of custom ROM when I first turned it on, but I was willing to deal with it until I double checked the procedure for getting it back to stock and starting again myself (nothing against the original rooting and flashing, just like to know exactly what I'm running).
When I purchased the phone I obviously checked that all of the main things worked - calling, texts, mobile data, wi-fi etc. I get home and connect to my home wi-fi and start checking things out and setting stuff up. The phone randomly rebooted. I carry on after the reboot and about 10 mins later, another restart.
To cut a long story short, there is something wrong with the wi-fi. If I turn off wi-fi in the settings menu and reboot, everything works great. No crashes, no reboots. If however I enable the wi-fi about 50% of the time it will crash while wi-fi is activating. The other 50% of the time, it will crash as it goes into the screen lock (either via timeout or pressing the button).
I've re-flashed to it's stock version of Android (using the 'Samsung GS3 Toolkit and Odin), same problem. Anyone got any ideas?
Thanks in advance
You can try updating the modem and RIL to the right version for your country, search in general forum. If it still reboots then try with another wifi source - I've seen some routers cause problems on client machines.
If you do a factory reset when you flash the modem, plus you have the latest stock ROM on board, then any remaining problems are probably hardware.
Test it fully after the factory reset, before you add any apps etc.
boomboomer said:
You can try updating the modem and RIL to the right version for your country, search in general forum. If it still reboots then try with another wifi source - I've seen some routers cause problems on client machines.
If you do a factory reset when you flash the modem, plus you have the latest stock ROM on board, then any remaining problems are probably hardware.
Test it fully after the factory reset, before you add any apps etc.
Click to expand...
Click to collapse
After much experimentation and flashing of various files to my phone I have further narrowed the problem. I've still not solved it, but getting closer I feel.
After a clean ROM flash it works like a charm regardless of how much i use the wifi etc. It's only after the first reboot that the trouble starts. It will begin randomly restarting. If I perform a factory reset from recovery mode, it works again, but starts resetting again after a reboot.
Any ideas?

WiFi Direct Can't Stay Connected

Hello everyone,
First time poster hoping experts may be able to help.
I have Galaxy S II phone and Galaxy Tab 4 7". I want to hook them up via wi-fi direct. I go through all the steps, connect them, but 2 seconds after connection is established they simply disconnect and start scanning again. No matter which device initiates the connection, or whether there is or isn't wifi AP in range, the result is the same. I've tried deleting WiFi Direct cache and also wipe cache partition but to no avail.
Can anyone suggest any solutions? It's strange that a basic feature of devices of the same manufacturer doesn't work.
The Galaxy Tab 4 is: 4.4.2
The Galaxy S II is: 4.1.2
Thanks in advance!
T.

Samsung Galaxy S2 doesn't recognize SIM-card anymore

My Samsung Galaxy S2 doesn't recognize my SIM-card anymore. I can't make calls or use (3G) internet.
Problems started after my phone was unresponsive while trying to pick up an incoming phone call. I had this before, but this time I shut down my phone with the power button. I can't make phone calls ever since or use (3G) internet. At first I could use wifi, but after a hard reset to factory defaults and a cache wipe I couldn't use wifi either.
If I look under 'About the Phone ... Status' (not completely sure what the English version exactly reads) it does not show the IMEI or IMEISV, nor the Wi-Fi MAC-address, nor the Bluetooth-address. The Wi-Fi MAC-address was shown before the reset to factory defaults.
I can't access my phone with (the freshly installed newest version of) Kies, although the 3 drivers install correctly (under Windows 7) when attaching my phone to my PC. I can access the phone via USB (and Windows Media Player).
I tried 2 other SIM-cards. They had the same problem. My own SIM-card works in another (older Nokia / non Smart) phone in the sense that I can make phone calls with it.
My phone has not been rooted.
Android version: 2.3.5.
Any help and solutions to this problem are much appreciated!
GvDam said:
My Samsung Galaxy S2 doesn't recognize my SIM-card anymore. I can't make calls or use (3G) internet.
Problems started after my phone was unresponsive while trying to pick up an incoming phone call. I had this before, but this time I shut down my phone with the power button. I can't make phone calls ever since or use (3G) internet. At first I could use wifi, but after a hard reset to factory defaults and a cache wipe I couldn't use wifi either.
If I look under 'About the Phone ... Status' (not completely sure what the English version exactly reads) it does not show the IMEI or IMEISV, nor the Wi-Fi MAC-address, nor the Bluetooth-address. The Wi-Fi MAC-address was shown before the reset to factory defaults.
I can't access my phone with (the freshly installed newest version of) Kies, although the 3 drivers install correctly (under Windows 7) when attaching my phone to my PC. I can access the phone via USB (and Windows Media Player).
I tried 2 other SIM-cards. They had the same problem. My own SIM-card works in another (older Nokia / non Smart) phone in the sense that I can make phone calls with it.
My phone has not been rooted.
Android version: 2.3.5.
Any help and solutions to this problem are much appreciated!
Click to expand...
Click to collapse
You can hope that it isn't a hardware problem and try to Root your phone and flash a custom ROM and see if the problem still is there.
Cleaning the SIM slot maybe is also worth a try.

Problems switching on Wifi on Galaxy S5 LTE (SM-G901F Android 6.0.1) Original ROM

Hello,
since a couple of days I experience a problem with my WIFI. The phone is neither rooted nor does it use a custom ROM.
When trying to switch on WIFI it turns into light green, then green and then it changes back to gray immediately. Same behavior can be seen when trying to switch WIFI on via settings.
This behavior appeared all of a sudden, I dont think that I changed something or installed a new app that could have caused that error. Maybe there was an update of an already installed app...
I then installed a terminal emulator and tried to start wifi via command line with
Code:
svc wifi enable
. That command immediately causes a message:
Code:
reset_reason_init
Killed
Wifi module seems to work. I've done
Code:
ifconfig
and it comes up with a usual result except it does not have an counters > 0
I've also tried another app called "Wifi Analyzer". That app seemed have no problems with wifi since it shows a huge number of networks around (but of course does not connect to them)
So, from my point of view there is an issue with Android that wont let me start WIFI. I think it is not a problem with hardware.
I really need my WIFI. I also tried do do a factory reset. But that doesnt help either....
Any ideas on how to fix that issue?
Regards
Olaf
Go to Sammobile. Com and download the firmware you are on currently on check this by booting to recovery mode or check in settings menu about
Once you have it downloaded flash it in odin to your s5 then everything will hopefully be working this is a small chance of lost data so backup any important data before you flash the firmware in odin
If you have any questions just ask
sent from my nexus 4 I also own a voyager tablet and an I-phone 4s

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