Fingerprint sensor issues, and WiFi issues "Obtaining IP address"

andygold

Senior Member
Aug 20, 2007
241
35
0
Northern NY
My LG G7 is a Verizon Wireless model that is not rooted. Over the last few weeks, the fingerprint sensor has been working only part of the time. Mostly, when I hit it with the phone locked, it will do nothing. Then I push the power button to get the screen to light up, and it leaves me at the knock code screen. 95% of the time, the fingerprint sensor will work at this time (yes I know I need to use the knock code when I boot the phone, before the sensor will work). A couple of days ago, the sensor would not work at all, so I went in and deleted some stored fingerprints. When I tried to enter new ones, I instantly got a message on the screen telling me the sensor was not working and to contact a customer center.


So, I did a factory reset and set the phone up as a new phone, figuring some setting was wrong, or an app messed with things. No luck. Still a partially working fingerprint sensor. Strange thing is, I then booted into safe mode and the sensor works 100% of the time. In regular mode though I may be able to wake the phone 5 times in a row, and then for the next 10 times nothing.


A short time after these issues started, I started getting a WiFi issue in that my phone will not connect to my work's "Public_Access" WiFi. It connects up to my home WiFi, and other WiFi, but not at work anymore. My tablet connects at work, and everyone else's phone connects, but not mine. I get a "Obtaining IP Address.." message, and every once in a while it will flash the word "Saved", but no luck in connecting. Signal strength is "good" to "excellent". Link speed is normally around 144 Mbps or higher, frequency is either 2.4 or 5Ghz, and security is "None". None for proxy, and I'm DHCP. If I go to static settings, the IP and gateway look like numbers from home.


Anyone else having these issues? anyone found any workarounds?
 

OnceAMatrixMan

Senior Member
Feb 27, 2008
863
132
0
NYC
My LG G7 is a Verizon Wireless model that is not rooted. Over the last few weeks, the fingerprint sensor has been working only part of the time. Mostly, when I hit it with the phone locked, it will do nothing. Then I push the power button to get the screen to light up, and it leaves me at the knock code screen. 95% of the time, the fingerprint sensor will work at this time (yes I know I need to use the knock code when I boot the phone, before the sensor will work). A couple of days ago, the sensor would not work at all, so I went in and deleted some stored fingerprints. When I tried to enter new ones, I instantly got a message on the screen telling me the sensor was not working and to contact a customer center.


So, I did a factory reset and set the phone up as a new phone, figuring some setting was wrong, or an app messed with things. No luck. Still a partially working fingerprint sensor. Strange thing is, I then booted into safe mode and the sensor works 100% of the time. In regular mode though I may be able to wake the phone 5 times in a row, and then for the next 10 times nothing.


A short time after these issues started, I started getting a WiFi issue in that my phone will not connect to my work's "Public_Access" WiFi. It connects up to my home WiFi, and other WiFi, but not at work anymore. My tablet connects at work, and everyone else's phone connects, but not mine. I get a "Obtaining IP Address.." message, and every once in a while it will flash the word "Saved", but no luck in connecting. Signal strength is "good" to "excellent". Link speed is normally around 144 Mbps or higher, frequency is either 2.4 or 5Ghz, and security is "None". None for proxy, and I'm DHCP. If I go to static settings, the IP and gateway look like numbers from home.


Anyone else having these issues? anyone found any workarounds?
By any chance are you using VZW Messenger?
 

jefflikesbagels

Senior Member
Oct 19, 2010
55
8
0
I'm having the same issue with the fingerprint sensor. The only workaround I've found is to reboot the phone, then it will start functioning again for a little awhile. Very bizarre.
 

tommy320

Member
Oct 19, 2010
44
8
8
I also recently started having issues with the fingerprint scanner. Since a lot of people have this issue I'm starting to think it is software related.
 

OnceAMatrixMan

Senior Member
Feb 27, 2008
863
132
0
NYC
My LG G7 is a Verizon Wireless model that is not rooted. Over the last few weeks, the fingerprint sensor has been working only part of the time. Mostly, when I hit it with the phone locked, it will do nothing. Then I push the power button to get the screen to light up, and it leaves me at the knock code screen. 95% of the time, the fingerprint sensor will work at this time (yes I know I need to use the knock code when I boot the phone, before the sensor will work). A couple of days ago, the sensor would not work at all, so I went in and deleted some stored fingerprints. When I tried to enter new ones, I instantly got a message on the screen telling me the sensor was not working and to contact a customer center.


So, I did a factory reset and set the phone up as a new phone, figuring some setting was wrong, or an app messed with things. No luck. Still a partially working fingerprint sensor. Strange thing is, I then booted into safe mode and the sensor works 100% of the time. In regular mode though I may be able to wake the phone 5 times in a row, and then for the next 10 times nothing.


A short time after these issues started, I started getting a WiFi issue in that my phone will not connect to my work's "Public_Access" WiFi. It connects up to my home WiFi, and other WiFi, but not at work anymore. My tablet connects at work, and everyone else's phone connects, but not mine. I get a "Obtaining IP Address.." message, and every once in a while it will flash the word "Saved", but no luck in connecting. Signal strength is "good" to "excellent". Link speed is normally around 144 Mbps or higher, frequency is either 2.4 or 5Ghz, and security is "None". None for proxy, and I'm DHCP. If I go to static settings, the IP and gateway look like numbers from home.


Anyone else having these issues? anyone found any workarounds?
By any chance are you using VZW Messenger? It was an update to VZW Messenger that caused the issue for me. Next update resolved it.
 

andygold

Senior Member
Aug 20, 2007
241
35
0
Northern NY
By any chance are you using VZW Messenger? It was an update to VZW Messenger that caused the issue for me. Next update resolved it.
I do have Messenger on the phone. It is NOT set as my default messaging app as I do not like it. Only reason I have it is because too many of my colleagues send me messages through it, which I can't open any way else that I know of. I'll look for an update and see if that helps. If not, I'll delete it and check again.


Thank,


Andy
 

andygold

Senior Member
Aug 20, 2007
241
35
0
Northern NY
Last update to Messenger I have is from April 9th. I looked for a more recent update but no luck.

Just deleted Messenger, and rebooted. After the initial need to enter the knock code, I slept the phone by tapping the power button (sorry if my terminology is off). 4 different fingers then and no joy (from the sleeping phone). If I hit the power button, the screen lights up and leaves me at what I guess is the lock screen showing recent email and calendar events. From there, I can successfully (still about 95% of the time) use the fingerprint sensor or the knock code to unlock the phone. But from a screen-off, sleeping mode, the fingerprint is still in a maybe it will work, maybe it won't situation.
 

Seba rubio

Member
May 6, 2016
7
1
0
If I have the same problem for about two weeks approximately install youtube vanced and yowhatsapp I do not know if it will be that but it is very annoying I hope lg update soon but I do not think I have the Indian version
 

redbar0n11

Member
Jun 28, 2008
7
0
0
Have same model and had same issues. I recently found out that I was missing 3 updates. December update started these issues. I'm now on the 10j version and so far haven't noticed the issue. But it's only been a day or so.
 

andygold

Senior Member
Aug 20, 2007
241
35
0
Northern NY
Have same model and had same issues. I recently found out that I was missing 3 updates. December update started these issues. I'm now on the 10j version and so far haven't noticed the issue. But it's only been a day or so.

I am also on 10j, and the issues are still there in regards to the fingerprint sensor....although for some unknown reason, after weeks of no WiFi at work, my phone finally decided to hook up to my work WiFi yesterday afternoon, and this morning when I got into work it instantly hooked up to it again. So, hopefully the WifI issue has been rectified. I guess I should somewhat count my blessings as WiFi is more important to me than fingerprint sensor, in the big scheme of things!


There has to be a software/firmware issue going on though as the sensor seems to be most troublesome when the phone is sleeping. Once the lockscreen is on, although there are still issues, it works 95% of the time. That makes me believe it's not a hardware issue.
 
Last edited:

netookska05

Senior Member
Jan 28, 2013
550
218
73
Albuquerque
I have Verizon also. It may help if all of you download the latest kdz for Verizon and reflash it vs factory reset. Using the lg up method by lamemonster. I do it all the time when I cross flash kdz as well as flashing back to Verizon. Hope this helps.
 

OpenMinded

Senior Member
Oct 26, 2006
884
67
28
I have Verizon also. It may help if all of you download the latest kdz for Verizon and reflash it vs factory reset. Using the lg up method by lamemonster. I do it all the time when I cross flash kdz as well as flashing back to Verizon. Hope this helps.
can you link to or specify that exact flashing method? nothing works for me, second piece of new hardware, no results.