Samsung Tab 4 SM-T335 random vibration - General Questions and Answers

after I connect to the internet (wifi or mobile data) the tablet starts to vibrate like it has a notification but nothing appears
it starts even if the wifi is only enabled but not connected
if I restart the tablet with the wifi and mobile data turned off there is no vibration ... but after enabling one of the 2 even without internet access the vibrating starts and won't stop until I restart the tablet
Sadly I can not really afford to do a factory reset (that's only the very last resort)
since it started no app has updated even though I can not exclude a rouge app behaving like this. is there anything that could show me what exactly is causing the vibration ?
Thank you

same issue

Related

Frustrating Wifi problems

It seems like wifi on my phone just won't cooperate with me.
The problem's never the same but the general concept is the same. Either my wifi doesn't turn on, or it'll turn itself off after some time. Sometimes I turn on wifi in comm manager and I'll get the loading thing, but then it doesn't turn on.
Other times, it'll turn on only to be instantly turned off again.
Other times it'll turn on. I'll start surfing the web (or doing nothing for that matter) and it'll be turned off again!
Sometimes it'll turn on, work fine, and then I'd lock my phone and turn off the screen for a while. Afterwards, I turn on my phone again and it's turned off again. It was on before I turned off the screen (and it should stay on.. it did when I first got my phone).
I recently hard reset and flashed to Energy Rom, Mercury. The problem persists. I guess this means it's a hardware issue right? I've checked many settings (including all of the settings in advanced config) and it seems like wifi isn't acting as it should..
Anyone have any ideas?
hard reset, flash new radio/rom
paperWastage said:
hard reset, flash new radio/rom
Click to expand...
Click to collapse
thats not going to work he said that he just flashed the newest mercury rom and that means he has probably got a good radio too . unless its just the radio .
other than that i don't know what to tell you about wifi other than i don';t use it much .
the rom works fine and the radio doesn't affect wi-fi. there are some settings that disable wi-fi after a period of no use. it could be that. only reason that would occur while you're actually using it tho would be that it was using your data connection and not wi-fi the whole time so wi-fi stayed inactive and decided to shut off. check your wi-fi settings.
I made sure that I disabled data connections (since I don't have a data plan. I cannot connect to the internet if I do not have wifi on).
I'm pretty convinced this is a hardware issue.. Looking at my wifi settings, there's no reason why it should turn off, and the only thing I noticed was that in advanced config, it's set to disconnect wifi after 2 mins of inactivity. I often get disconnected from wifi like 4 seconds after turning it on (and often while I'm trying to load a page in opera too).

Atrix 2 known wifi problems?

I have an Atrix 2. It has been replaced twice by AT&T due to this problem. I have factory reset each phone and tried every battery mode, data saver, sleep policy and wifi channel.
The problem:
The wifi turns off by itself! not sleep, off! As in the checked box is unchecked. The phone does it during use and when not being used. The timing between instances is random. The wifi sometimes stays on for hours. Other times it wont last five minutes. I have 4 other wifi devices connected by wifi to my secured router.
Note: I travel across the country for work and the problem occurs at airports, hotels, mcdonalds, ect.
I have called Motorola and their only option is to send it to the with no replacement. I could use some help. I have been searching online and others with this problem dont persist, they simply state that unsecuring their router fixed the problem. That is not an option for me as the routers are not mine.
Any input will be greatly appreciated.
Hi, I recently noticed this problem started after I installed the ATT Smart Wi-FI app. Mine will connect then turn off, wait a second turn back on then I get the WIFI networks avail message and I check it and it's not connecting to the network til I tell it too then it will stay connected all day.
I"ve had my atrix 2 for about a little over a month. It's doing the same thing. Wifi will randomly shut off. I have to go into the settings to turn it back on. It will work fine for a little while then just shuts off again. Does anyone know if this seems to be hardware or software related. I've tried different apps and WiFi sleep settings to no avail. I really like the atrix but this is kind of annoying.
I have the same issue also, except I have top reboot my phone for wifi to work again.
Sent from my MB865 using XDA App
i have the same problem, it's not my wifi connection, but the actual wifi setting turns off whenever i turn off my screen and yes, i've set the wifi sleep policy to "never", so that's not the problem. i've also tried "never when plugged in" and "when screen turns off" and i still get the same problem. i was thinking about going to at&t and asking them about it but decided to come here first.
(a white iphone 4 is looking better and better ) can anyone help?
I had this problem but after I disabled the power saver option under battery and data (set it back to performance) it went away and Wi-Fi works perfect.
Tried different battery saver settings as well, nothing changed.
Sent from my MB865 using XDA App

[Q] Lumia 1020 connectivity issues (bt/wifi/plane mode)

Hello there.
I am facing a problem which i think is caused from the bt.
Everything works fine (no battery drain, no heat, not lagging, no crashing apps, perfect voice quality etc) EXCEPT when i connect my bt headset(-s).
At first it works fine, make my calls, download emails browse everything. At some point (it could be 5 minutes it could be 5hrs) i am facing disconnections with the connected bt device. The phone may or may not show it is disconnected, it may or may not enable voice through bt (but i cannot hear anything). During the call i can toggle bluetooth and speak through the phone.
Here is the chain of events.
After this it drops the connection with the wifi and the menu stays at Searching mode (i left it in search mode for >5hrs with no luck discovering any wifi). If i disalble wireless or bt or enable/disable airplane mode the menu stays grey forever and with the dots in the upper screen keep coming and coming. Long story short i cannot toggle on/off any connectivity feature (only cellular data works under any circumstances), i have to either turn off and on the phone or soft reset it. I did two hard resets (one of them was clean state) but this behavior hasn't changed.
Also if i have only bt on and connected and i leave it overnight in the morning it shows about 10 - 15% battery and quiet hours are not auto disabled (also tried to turn Cortana Off) BUT if i plug it for FIVE minutes it goes back to 90-95%. and have normal battery consumption during the day.
The only thing i havent tried (and if i do i will do it only for testing reasons) is roll back back to WP8.0.
Am i facing a warranty issue or is it a glitch of the software (i am running Cyan)?
Lef84 said:
Hello there.
I am facing a problem which i think is caused from the bt.
Everything works fine (no battery drain, no heat, not lagging, no crashing apps, perfect voice quality etc) EXCEPT when i connect my bt headset(-s).
At first it works fine, make my calls, download emails browse everything. At some point (it could be 5 minutes it could be 5hrs) i am facing disconnections with the connected bt device. The phone may or may not show it is disconnected, it may or may not enable voice through bt (but i cannot hear anything). During the call i can toggle bluetooth and speak through the phone.
Here is the chain of events.
After this it drops the connection with the wifi and the menu stays at Searching mode (i left it in search mode for >5hrs with no luck discovering any wifi). If i disalble wireless or bt or enable/disable airplane mode the menu stays grey forever and with the dots in the upper screen keep coming and coming. Long story short i cannot toggle on/off any connectivity feature (only cellular data works under any circumstances), i have to either turn off and on the phone or soft reset it. I did two hard resets (one of them was clean state) but this behavior hasn't changed.
Also if i have only bt on and connected and i leave it overnight in the morning it shows about 10 - 15% battery and quiet hours are not auto disabled (also tried to turn Cortana Off) BUT if i plug it for FIVE minutes it goes back to 90-95%. and have normal battery consumption during the day.
The only thing i havent tried (and if i do i will do it only for testing reasons) is roll back back to WP8.0.
Am i facing a warranty issue or is it a glitch of the software (i am running Cyan)?
Click to expand...
Click to collapse
I got the exact same problem with my own L1020, have been fighting with support to have it fixed, they changed about everything (except the mainboard...) and the problem is still there.
I started to be really angry and got a free Lumia 930 in "replacement"... as I still got the L1020, I tried to put it under W10 preview, and it looks like the problem is really a software issue... with some builds, Bluetooth was working fine, with some the same problem appeared again...
I don't know if you found a solution in the meantime... if you did, I'd like to know what it was, because I like the 1020 better than the 930 (size and camera mostly) and I'd love to have it working with my MS Band

Nexus 5 WiFi Crashing Phone

Hi all. I have a weird issue that after Googling it doesn't seem anyone else has had.
The issue started earlier today, in the morning. I was using my phone on the WiFi and it was working phone, then my phone crashed, restarted itself.
I noticed it wasn't connected to the WiFi, went to the WiFi settings and where it usually says the list of networks it said "Turning on WiFi" and the slider at the top was greyed out so I couldn't turn it off.
I tried airplane mode and that didn't help. But the phone was working fine on my mobile data so restarted.
Now the weirder part starts. I basically have an issue where, if I turn on the WiFi, my phone crashes, or doesn't act like it's turning the WiFi on.
Even going Settings and then pressing on the WiFi option freezes the phone.
The problem started when I was still using 4.4.4 however since the problem developed I've used my mobile data to download the updates and now have 5.1.1 I think.
The problem persists even after updating to the most recent version and doing a factory restore. The phone is currently completely stock with nothing downloaded on to it. All I did is go through the first time setup for the device.
The WiFi currently is off, and the phone is working however it won't connect to my data, it has the signal bars and then an ! instead of a 4G icon.
If I try to turn the WiFi on it crashes the phone.
The phone is still under warranty so I plan on contacting LG on Monday however it's currently 3:34 AM on a Sunday so I have a day until I can call them and was hoping for a solution in that time.
Thanks in advance. I have the phone to hand so anything you want me to test I'm able to.
There is some information I didn't type as I don't know what is important was trying to avoid a wall of text so if you have any more questions I'll answer I best I can.
Thanks for reading, I hope you can help!

WLAN Hotspot doesn't work on Android, looking for competent help

Hi,
I'm using a Sony Xperia Z5 Dual Android 7.0 facing that issue making me unable to use my WLAN hotspot (which it pretty anoying cause it doesn't only dissallow me to share my internet connection but also I can't do other network stuff between devices I'd use that hotspot for).
So when I try to turn on my the hotspot it simply turns itself off again after small amount of seconds. When I got to WLAN hotspot in settings then I have the active button to switch the hotspot on while it shows me tbat it's of at the moment. Doing that it says "Activating hotspot..." (pretty exactly that) until it's going off again with a quick "Deactivating hotspot" and you could activate it again but it will do nothing again than say "activating" and go off again. While it is "activating" it already shows the active hotspot icon in the top bar of the phone and the hotspot settings are as well already active and no more inactive greyed out. But only for nk idea, 3 seconds probably. Within that short period of time my laptop didn't find my phones hotspot but that might just be down to an to high delay in scanning and finding so I don't know wether it would shortly pop up seeable for other devices.
Earlier that day I had my hotspot working actively (nobody actually joined) but it worked and would have if somebody joined because that issues is not new to me on my phone and when the hotspot activates, then it also works. But half of the time it seems when I want to use it, it doesn't work. I haven't changed any settings inbetween or restarted my phone. It was probably on for one week, but after then trying a restart it still didn't help.
I already changing some one-click stuff like just turning out WLAN, turning off or on data save mode (which stops background data for all apps in mobile internet and WLANs marked as hotspots), turning off or on mobile data. But well, I don't know anything else and earlier it worked with all the same settings so what could be the problem behind that?? Besides that my phone always just works completely normally without any issues, WLAN always works without problems, only Bluetooth sometimes doesn't want to activate and then I see it active after some minutes or hours later, but that can always be fixed with a restart if I needed it instantly. If you just wait and it is active then tough, it is kinda awoken and works instantly then again shutting it off and on.
Phone is not rooted btw.
Ok long text, but please if you have any ideas tell me..
Greetings, HelpsToMes

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