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Wifi switching off instantly

H

hellostephan

Lurker
Hello! Every time I try to switch wifi on on the phone, it switches itself off instantly. I tried resetting the phone, master resetting, wiping data cache, safe mode but with no luck.
It's like a "don't touch box" where the switch is my wifi switch button
 
Hello Clementine! Thanks for the reply. I have a Samsung Galaxy J5 2016. The problem is new. I woke up with it being like this. It shuts right off. Thanks in advance!
 
Try a few things, that may or may not help:

On your phone, in wifi settings, 'forget' your connection
Turn the wifi off

Reset your wifi modem (unplug it, wait a few then plug it back in)

On your phone, turn wifi back on and see if it scans for networks (and hopefully finds yours)
 
Like in that video, the wifi switch turns itself off. I can't see any wifi network, i can't "forget" my network because it doesn't have time to appear. And resetting my modem has nothing to do with it because the issue is with the wifi switch. I can't turn it off because it turns itself off instantly. I can only turn it on just to see it turning itself off in a second. It doesn't have time to scan for network
 
hellostephan said:
Is this one of those issues that no one knows the explanation or any temporary fix?
Click to expand...

No, but you're not going to like it. What you are describing is what happens when the Os tries to detect a Wireless network adapter but fails. This means one of two things, the drivers are incompatible or corrupt (firmware), or the WiFi adapter has failed (hardware). Since you say this is a recent development then situation #2 is more likely and the fix for that is replacing the WiFi component of your phone (which is probably on the main logic board).

Still under warranty?
 
Yes, it's under warranty. I love how random this happened to me as I never dropped the phone or something like that. Meanwhile I found out that if I activate data and then hotspot and then i try to activate the wifi it stays grey and "in the middle" of being on. After 50 seconds it goes back to off. I attached 2 pics.
Also, can't I get an app or something that is going to tell me if my wifi module is all right or no? Like if it's being there and detected?
 

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These kinds of failures are rarely due to physical damage like drops or bumps. It could be a failed component due to excessive heat, a broken solder joint or simply a marginal circuit path on the IC that finally gave up.

Every time you turn on Wifi it's going to try and locate a working WiFi radio and when it doesn't find it it will try to enable the driver which is failing. When you try to turn on the hotspot while it's searching, it's going to slow things down and 50 seconds doesn't seem unreasonable. I doubt your going to fix this by changing settings.

If you are determined to find a fix you can do yourself, you could try reflashing the factory firmware which should re-install the radios, but if it's truly a hardware problem, it's not going to make it any better.

While it's under warranty, get it fixed properly.
 
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