[Ozzyel PT]

Just signed in to share this.. I solved it by deleting /data/misc/wifi/wpa_supplicant.conf .
It will reset all your saved networks.
I have it rooted and deleted the file through a root explorer or you can remove it via adb (adb shell rm -r /data/misc/wifi/wpa_supplicant.conf Im not sure).

You may back it up before then open with a text reader to see your saved passwords.

Hope it helps.

[MarkColo]

Thanks OzzyPT - will try that next time.
Did a factory reset. Problem persisted. OzzyPT - would a factory reset blank out the file you indicate?

After the factory reset, I fixed it by pulling the microSD card and wiggling around the SIM card. Specifically I pushed it towards the center of the phone. The SIM on this model does not have an obvious way to remove it so I went with re-positioning it.. Booted it up. It worked. Put the memory card back in. Booted up. Still working. I wanted to remove and re-seat the sim because of something someone said above about lacking hardware ID's...

My phone was a T-Mobile Alcotel One Touch (3 months old)

[that1techieguy]

Just signed in to share this.. I solved it by deleting /data/misc/wifi/wpa_supplicant.conf .
It will reset all your saved networks.
I have it rooted and deleted the file through a root explorer or you can remove it via adb (adb shell rm -r /data/misc/wifi/wpa_supplicant.conf Im not sure).

You may back it up before then open with a text reader to see your saved passwords.

Hope it helps.

Are you positive that this will solve it? Did you just browse to that file, delete it, reboot, and the wifi started to work?

Thanks

[jlost]

This seems to be a sprint thing. I'm on Verizon and don't have this issue.

[that1techieguy]

This seems to be a sprint thing. I'm on Verizon and don't have this issue.

I am on Verizon, and experiencing this issue. I've tried everything except rooting and deleting that file. I bought my phone off craigslist brand new, so I can't go through LG because of no proof of purchase.

[jlost]

Eek, this is why I only buy from credible sellers, like a store

[that1techieguy]

Eek, this is why I only buy from credible sellers, like a store

Yes i agree now..

[that1techieguy]

Just signed in to share this.. I solved it by deleting /data/misc/wifi/wpa_supplicant.conf .
It will reset all your saved networks.
I have it rooted and deleted the file through a root explorer or you can remove it via adb (adb shell rm -r /data/misc/wifi/wpa_supplicant.conf Im not sure).

You may back it up before then open with a text reader to see your saved passwords.

Hope it helps.

I rooted my Verizon g4 and this did not fix the issue..wifi is still broken.

[dbacks34]

I am also with VzW I started having this issue back in July, device was replaced and it is still having the same issue. When you call LG they say it is being worked on. I was hoping the new software released this passed weekend would fix it but it did not. LG said I could wait for a new update or mail it in to be manually repaired. From what I can read over all forums, it is effecting all carriers with this phone model as well as a Samsung s5 devices since the Lollipop update as well. I hope google gets it updated soon. As all the suggestions are not working. No wi-fi is getting annoying.

[jlost]

I haven't see any software update for Verizon since the 12a one.

[Aflaaaak]

I haven't see any software update for Verizon since the 12a one.

Just downloaded the new Verizon Update, version 13B

[Ozzyel PT]

It worked for me just as described on an LG L3X. no reboot needed. Maybe it's just one of many problems that can cause the wifi get broken

[Almighty1]

I am on Verizon, and experiencing this issue. I've tried everything except rooting and deleting that file. I bought my phone off craigslist brand new, so I can't go through LG because of no proof of purchase.

Just call Verizon Wireless tech support as Verizon Wireless will provide replacement warranty for 12 months from activation date of devices that they also sell regardless where you bought it. If you have Total Equipment Protection, then they will cover it anytime you still have the TEC on your account. They will send you a replacement in advance and you just either accept the new device and send the old phone back or send the new one they send you if you like it within 5 business day which realistically is 30. If you don't like it and want another replacement, call them and they will ship you another one while you still have the replacement they sent you, they provide pre-paid shipping.

[Danadiamond]

I bought mine at USCellular. I have the same problem with the wifi blinking. My phone keeps shutting down and won't reboot for hours. I was told I need to pay an additional $35.00 on top of the purchase price so I can return to them this defective new device that is less than 2 months old and they can send me a remanufactured device.

[Andre Eugenio da Luz]

Same problem in my LG G4 H818P Brazil no carrier, any workaround?

[mccann0128]

I had this same issue on my wife's AT&T LGG4. I turned off the battery saving mode, then restarted the phone and this fixed the problem. Hope this helps.

[Tidebeast3991]

So is there gonna be any update its 2016 now or replacing it is the only option. I have lg h818p model.

[jlost]

No update for yooouuu

[Tidebeast3991]

Damn never thought one of lg's device is gonna be a problem and that though the latest g4.

[Tidebeast3991]

Btw when are we gonna get marshmallow that might solve the issue?

[gg2121]

I have the same exact problem.
Purchased the Hong Kong version H815T and using it in the UK.
It worked fine for 5 months but then wifi and bluetooth refused to be controlled (turned off / on).
LG is acting like they are different companies in different regions and LG G4 refuses to fix it under warranty.
LG Hong Kong is not replying to my emails.
Never again LG, not even a TV, not even a refrigerator, not even a pen!

[InsaneHien]

My AT&T G4 started having the same problem 3 weeks ago. Really sucks because I've had the phone since August and was working fine then. Using a Note 3 now.

I'm even more disappointed because I don't have the receipt for it when I got it at the AT&T store, so I can't send it to LG for repair. Can't do much for now.

[Tidebeast3991]

Have ur device updated to android m.Its available in honkong just try to update to android m guys and some one pls post abt it.Does android m solves this issue or not.

[LynnBCarter73]

Thank you so much for this! I tried the more complicated solutions (with trepidation, because I don't know the ins and outs of some of the things I was changing) to no avail, but what always works is to turn the battery saver mode on if it's off, or off if it's on, and restart. Works *every* time.

This was supposed to be a reply to #41, but it didn't nest there, so I've clarified

[Tidebeast3991]

I tried battery saver on or off n restart but it aint working for me.
Any 1 with this problem updated to android m?? Any1?