Develop Bugs

Wi-Fi suddenly disabled, phone halting, root lost

So, my phone reset itself randomly today and I noticed it was unable to turn on Wi-Fi for some reason. I uninstalled an app I've had for a long time called Power Toggles as I know it also can turn on/off the Wi-Fi (to make sure the phone and it weren't fighting) and I got the idea to check the root using Root Checker. Turns out, it failed . . . So something funny is going on.
I have not knowingly taken any type of update but every once in a while, my phone has tried to update and then said it aborted it due to suspected root. Not sure if that's what happened this time around as it happened while it was in my pocket (or at least it was working before I put it away and then later on, it basically stopped working and just seems to continuously reboot for funsies).
I tried rooting my phone using Kingoroot, an LG one click method (both script and GUI) with no luck. I've never had trouble rooting my phone, especially with one click roots before! I reinstalled LG drivers, disabled and re-enabled USB debugger, switched between MTP and PTP connections, etc. I can't seem to get it to recognize the phone. When doing one root method though, it reminded me to accept the RSA fingerprint and I realized that my phone is not asking me for the RSA fingerprint for my computer. I even tried revoking previous fingerprints and no luck there either. So I'm not sure what might be repressing that option but I'm assuming that's the "root" of my rooting issue.
Anyway, does anyone know
a) why my phone would suddenly be acting this way (I think I read someone else had similar symptoms in one of the one click root forums. Tried searching for more mentions but the website seems to be halting and letting me know the issue has been sent to administrators or something to that effect).
b) how do I solve this?
Below is what I'm running:
Android Version
5.0.1
Kernal Version:
3.4.0
Build Number:
LRX21Y
Software Version:
D85021I
Security Software Version:
MDF v1.1 Release 2
I have a TWRP backup made from quite a while ago (possibly a year ago) so i can try and utilize that but I'm not sure if that will do me any good if I can't root my phone first. I don't want to do anything out of desperation that's going to put me into more trouble down the road. At least as of now, my phone boots up correctly (even if it does seem to reset fairly regularly and has a constant battery drain from trying to turn on the wifi).
Any help you guys can give me would be greatly appreciated. Hopefully, I won't just have to buy a new phone . . . Thanks in advance!

Turns out Bluetooth no longer works either. Just thought that might be worth mentioning.

http://forum.xda-developers.com/lg-g3/help/wi-fi-bluetooth-fm-radio-d855-t3284582 Old problem, not much that can be done :|

jbrookley said:
So, my phone reset itself randomly today and I noticed it was unable to turn on Wi-Fi for some reason. I uninstalled an app I've had for a long time called Power Toggles as I know it also can turn on/off the Wi-Fi (to make sure the phone and it weren't fighting) and I got the idea to check the root using Root Checker. Turns out, it failed . . . So something funny is going on.
I have not knowingly taken any type of update but every once in a while, my phone has tried to update and then said it aborted it due to suspected root. Not sure if that's what happened this time around as it happened while it was in my pocket (or at least it was working before I put it away and then later on, it basically stopped working and just seems to continuously reboot for funsies).
I tried rooting my phone using Kingoroot, an LG one click method (both script and GUI) with no luck. I've never had trouble rooting my phone, especially with one click roots before! I reinstalled LG drivers, disabled and re-enabled USB debugger, switched between MTP and PTP connections, etc. I can't seem to get it to recognize the phone. When doing one root method though, it reminded me to accept the RSA fingerprint and I realized that my phone is not asking me for the RSA fingerprint for my computer. I even tried revoking previous fingerprints and no luck there either. So I'm not sure what might be repressing that option but I'm assuming that's the "root" of my rooting issue.
Anyway, does anyone know
a) why my phone would suddenly be acting this way (I think I read someone else had similar symptoms in one of the one click root forums. Tried searching for more mentions but the website seems to be halting and letting me know the issue has been sent to administrators or something to that effect).
b) how do I solve this?
Below is what I'm running:
Android Version
5.0.1
Kernal Version:
3.4.0
Build Number:
LRX21Y
Software Version:
D85021I
Security Software Version:
MDF v1.1 Release 2
I have a TWRP backup made from quite a while ago (possibly a year ago) so i can try and utilize that but I'm not sure if that will do me any good if I can't root my phone first. I don't want to do anything out of desperation that's going to put me into more trouble down the road. At least as of now, my phone boots up correctly (even if it does seem to reset fairly regularly and has a constant battery drain from trying to turn on the wifi).
Any help you guys can give me would be greatly appreciated. Hopefully, I won't just have to buy a new phone . . . Thanks in advance!
Click to expand...
Click to collapse
Well ok, you have that TWRP backup, how about accessing TWRP?
Can you enter recovery?
Does it display your IMEI in system settings, what does it do when you try to enable wifi?
Can you make backup of your current ROM in TWRP, then try to restore the old one, try restoring only system partition if the backup was made on same Android Lollipop 5.0.1. ?

Well, I was able to get into recovery and run an old image but it appears to have the same issue. My IMEI is fine (I did a full backup including IMEI but it had a valid IMEI before as well) so that wasn't the issue. Looking at that other thread someone posted, it looks like my phone is just screwed and this is a well known issue. It looks like people were able to fix it by replacing the motherboard, which is obviously not an option for me. If that's the case, I'm guessing this is my first and last LG phone. I've never had this kind of issue with a Samsung. In fact, I'm now back on an old S4 until I can figure out what to do. Not sure what phone to get at this point.
Natus, to answer your question, the Wi-Fi icon just kinda goes in a loop like it's trying to start it up. Opening up the Wi-Fi menu has it say it's starting up the Wi-Fi but never gets there. Unfortunately, it eats up battery fast, heats it up quickly, and eventually restarts.
I'm open to any other ideas but I'm guessing it's a hardware problem at this point. Thanks for the info, everyone! I do appreciate the help!
If you have any suggestions for a new phone, I'm all ears. Trying to stay out of a payment plan so I'm looking at the Nexus 6P but I'm wondering if there's one coming down the pipeline I might want to hold off for. I'd rather buy directly from the manufacturer than go through AT&T, given the option. Might need to start a new thread for that one though . . . Thanks!

jbrookley said:
Well, I was able to get into recovery and run an old image but it appears to have the same issue. My IMEI is fine (I did a full backup including IMEI but it had a valid IMEI before as well) so that wasn't the issue. Looking at that other thread someone posted, it looks like my phone is just screwed and this is a well known issue. It looks like people were able to fix it by replacing the motherboard, which is obviously not an option for me. If that's the case, I'm guessing this is my first and last LG phone. I've never had this kind of issue with a Samsung. In fact, I'm now back on an old S4 until I can figure out what to do. Not sure what phone to get at this point.
Natus, to answer your question, the Wi-Fi icon just kinda goes in a loop like it's trying to start it up. Opening up the Wi-Fi menu has it say it's starting up the Wi-Fi but never gets there. Unfortunately, it eats up battery fast, heats it up quickly, and eventually restarts.
I'm open to any other ideas but I'm guessing it's a hardware problem at this point. Thanks for the info, everyone! I do appreciate the help!
If you have any suggestions for a new phone, I'm all ears. Trying to stay out of a payment plan so I'm looking at the Nexus 6P but I'm wondering if there's one coming down the pipeline I might want to hold off for. I'd rather buy directly from the manufacturer than go through AT&T, given the option. Might need to start a new thread for that one though . . . Thanks!
Click to expand...
Click to collapse
I'd wait for note 7 or even iphone 7 =]

My phone got stolen

Hey guys, about a year and a half ago, my lg g3 d855 got stolen, I know that's sad I probably also posted some questions about it back in the days.. it took a long time but today I got it back ( it was an evidence in court so I couldn't take it and now when they are in jail and the case is closed they gave it back to me ).. anyway, apparently the thief changed the phone password, and I really want to get all my information inside, I guess USB Debugging is off since I can't use adb commands (adb devices returns an empty string), and after booting to recovery I see it has the stock recovery installed, so flashing zips is not an option,
I have no other option then trying, am I right?
Just to mention, I can try as many backups pins as I want, it doesn't lock me there, and I can also try his Gmail password..

JusTeN_ said:
Hey guys, about a year and a half ago, my lg g3 d855 got stolen, I know that's sad I probably also posted some questions about it back in the days.. it took a long time but today I got it back ( it was an evidence in court so I couldn't take it and now when they are in jail and the case is closed they gave it back to me ).. anyway, apparently the thief changed the phone password, and I really want to get all my information inside, I guess USB Debugging is off since I can't use adb commands (adb devices returns an empty string), and after booting to recovery I see it has the stock recovery installed, so flashing zips is not an option,
I have no other option then trying, am I right?
Just to mention, I can try as many backups pins as I want, it doesn't lock me there, and I can also try his Gmail password..
Click to expand...
Click to collapse
Wait as i understood.. You want to put your info inside to your phone?
Then why don't you do a factory reset and then do it..?
I know it may get the Google security (it needs the gmail and password that was in the phone) (it may be your gmail so give it a try..)

Sotiris02 said:
Wait as i understood.. You want to put your info inside to your phone?
Then why don't you do a factory reset and then do it..?
I know it may get the Google security (it needs the gmail and password that was in the phone) (it may be your gmail so give it a try..)
Click to expand...
Click to collapse
I want to see the info inside the phone, all my photos, chats, were stolen.. anyway I already did a reset.. thank you

Rootkit on LG G4. Takes over my network and can't remove it.

So last month I was following a tutorial on how to install ManageIQ. One of the steps involved pasting someone elses JSON on my google cloud account. That part of the tutorial was now changed with "generate your own private key".
Well, next thing I know my entire network got hacked, every single device too, my gmail account completely stolen, all passwords included etc. I didnt know that pasting someone elses Json key was basically giving access of everything to someone else.
The LG G4 was infected with some kind of malicious **** that as soon as I turn it on and connect it to my network, it opens my network to everyone.
The problem is ; I cant remove the rootkit because I cant root the phone. When I try to do it, I get a "this phone is from singapore and cant be unlocked" (?) message on he LG page, even tho its an International LG G4 H815 and shouldnt have this problem.
Yes, I already made several factory resets and using both methods (volume key down and by just doing it through the Opions menu), already tried with a brand new google account after one of these resets but still nothing. Same results. Today was ver obvious that the my phone was one of the issues because everything on my network was working fine until I decided to turn the g4 on after like 2 weeks..I wanted to check whatsapp.. And then I started to see random processes on my PC, ipsec, ssh enabled on my router, people getting access to the webcams of all devices (Im not joking) and all the nightmarish stuff Ive been suffering all this time. It came back once again.
One thing I noticed is that theres a ton of credentials that looks weird. Could someone with a clean lg g4 upload pictures of their credentials page on their phone? Also I cant remove all credentials because its greyed out.
Will upload screenshots of my credentials, later, so you can see and maybe tell me if something looks shady.
Solutions? Thanks.
EDIT: Here are all the credentials I got:
imgur . com / a / lA66Z
It gives me the option to encrypt and sd i dont have, altho I read this is a common issue.
I didnt take direct screenshots because im scared of plugging this into my PC right now so I just took photos. These pictures were taken right after a factory reset (low volume key method), just now.

Have you tried this?
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848

dsip said:
Have you tried this?
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
Click to expand...
Click to collapse
Interesting. Would this work on a H815 with android 6.0?

dsip said:
Have you tried this?
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
Click to expand...
Click to collapse
Ok, installed using LGUP, refurbish option.
The certificates are still there tho.
Can I assume my phone is safe now ?

same problem

genjumain said:
Ok, installed using LGUP, refurbish option.
The certificates are still there tho.
Can I assume my phone is safe now ?
Click to expand...
Click to collapse
No security expert here, nor programmer, just a reader of these forums. But it seems pretty unlikely to me that you would have caught something that gets so deep into the system that it's still there after an lgup flash.
I have a bunch of things (about 40, maybe?) in the trusted credentials, too, so I guess that's normal?

genjumain said:
Ok, installed using LGUP, refurbish option.
The certificates are still there tho.
Can I assume my phone is safe now ?
Click to expand...
Click to collapse
After flashing the kdz your phone is clean if it was infected but! if you restore apps you may get infected again (IF it was a smartphone virus).
The trusted certificate authorities in your screens looking fine and the reason why you cannot remove them is they are coming with the android OS.
Your main problem seems to me your PC or PCs . I would run an offline antivirus scan with a boot ISO. I would do it in 2 steps. Step 1 would be to run the AV boot ISO scan on your system partitions only to see if it find anything. Do this with different scanners is highly recommended!!
If you found something I recommend to reinstall the OS! Cleaning is no 100% choice.
You should download at least 2 (3 are the top most I would use) of the free boot ISOs:
https://www.raymond.cc/blog/13-anti...-compared-in-search-for-the-best-rescue-disk/
You can make your life easier when using a method to make multiple boot ISOs e.g. on one USB stick:
https://www.raymond.cc/blog/integra...ne-single-disc-or-usb-flash-drive-with-sardu/
If you really do not want to reinstall your OS the next step is to scan ALL your data as well.
To be honest the above can be a VERY time consuming process and there will be still a risk that not every virus can be caught. The only chance to be clean is reinstall the OS of your PC. I assume it is windows so it may be the time to think about installing Linux instead the security concept of Linux is different to windows and keep in mind that 95% of viruses target windows systems.
.
Sent from my LG-H815 using XDA Labs

Unable to reset Andriod ZTE phone bc of FRP lock, Looking for help unlocking Please!

Hi,
So I have a rather unheard of problem. I was given a phone from a friend before they moved out of state and have no way of contacting them anymore. I turned it on and it had a pass code so i just figured i would do a factory reset ( or what i assumed to be a factory reset) using the buttons on the phone. I used the recovery menu to get to the screen that gave me the options to wipe data, or install update from apk, or factory reset the phone so i used the volume buttons and clicked reset. I let the phone do its thing and when it turned back on it goes to the google factory reset protection page saying i need to login using a google account that was previously used on the phone before the reset. FML! i used the talk back option to be able to access the settings menu and figured i would just do the reset from the settings menu. This is were all of my problems begin!! I can access the settings menu and get to the back up & reset and then click the the Factory reset option. However, the factory reset screen has a button at the bottom of the screen that says Reset Phone and when I click the Reset phone button, absolutely nothing happens. (It makes a click sound but it doesn't do anything at all)
The Other Problem!!: For some unknown reason i cant seem to access the developer options and enable USB debugging. even after i put the phone in safe mode i still could not get the developer options to appear. I have no clue what i am doing wrong but i feel like i am running into a brick wall and not matter what i click or press the phone just will not do what it is suppose to do! I tried every way I can think of to enable USB debugging but, no matter how many times I try to click Build Number or Build Version ( whatever it is exactly called, hopefully you can understand what I mean) nothing happens! I have tried to install a USB debugging app from a qr code but it won't read the qr code from the camera app. I was able to access the camera app using the same talk back trick that i used to get into the settings. I keep telling myself if only i knew about the talk back trick to get into the settings menu before i stupidly reset the phone when i first saw the pass code. So I am hoping that a google FRP Bypass program will work and help me make the phone usable again!! Does anyone have any suggestions or advice?? I am open to all ideas.
So far i have come up with a few ideas but idk if any of them are even possible to accomplish! Can someone help me out and tell me if any of the following options are even possible and whether or not it will be helpful and make the phone usable so i can have a cell phone again. Please, Please can someone help me!! Ideas:
1.) Use a Google Factory Reset Protection Unlocking program.
2.)Somehow completely delete the entire phone and reinstall the marshmallow android OS, like when you would do a fresh clean install of windows on a PC, (IDK if this is even possible but i am assuming it should be)
3.) Rooting the phone and finding a new custom ROM. ( I haven't even done anything like or close to rooting a phone, but im guessing it cant be that hard, right? Google and YouTube have vast amounts of tutorials........, hopefully,....right?
4.) I have backups of my older phones that i am wondering if it would be possible to use one of the backups i have saved and somehow putting it on the phone as a way to get pasted the FRP lock? I haven't a clue if the backups are only usable to the specific phones that created them or if they can be used on any phone?
5.) Downgrade the Android version to a older version that doesn't have the FRP lock, then once i have access into the phone i can just upgrade the phone after i logging into my google account.
6.) You know how Windows PC have the restore option in the settings so you can go back to a previously made restore point? Like turning back the clock so to speak, Is this option available or does it even exist at all on Android? I was thinking if it does i can just simply store the phone back to before i stupidly reset it and then use the trick to bypass the screen lock code and use the settings to do a hard reset ( I really don't think this option even exists or is possible but im literally at the point of willing to try and do absolutely anything to be able to have a phone again! Please and thanks! It is a ZTE Z837VL and it is Android marshmallow, Android Version 6.0.1 (I'm not sure if the
Android version matters or not?)
Thanks. Also If this is the wrong place for this post then please just let me know where the correct spot is to post and i will quickly fix it!! I am new to the site and I have read alot of posts and truthfully, feel like i have overwhelmed myself with trying to make sure i do things the way its supposed to be done. I know many most likely ALL of the members on this site are advanced and way more knowledgeable about the mobile phone information. I do know alot of computers and I have alot of programming experience but i have only focused on PCs and am just starting to learn what i can about mobile development.
Thanks again for helping me and sharing whatever you can with me to help solve things. I am really hoping not to end up with a paperweight haha!!
Alyson

Recovering from Locked Phone (forgotten pw)

I seem to have really screwed things up. Device is at the required lock screen after a restart (biometrics are obv still fine), but I have forgotten my lock screen credential. USB debugging is not enabled, so adb isn't playing nice. Never unlocked the bootloader. What can I do other than wipe the device? I have data I wish to recover, so would prefer to rule out wiping, if possible.

notmike_ said:
I seem to have really screwed things up. Device is at the required lock screen after a restart (biometrics are obv still fine), but I have forgotten my lock screen credential. USB debugging is not enabled, so adb isn't playing nice. Never unlocked the bootloader. What can I do other than wipe the device? I have data I wish to recover, so would prefer to rule out wiping, if possible.
Click to expand...
Click to collapse
I hate to be the bearer of bad news but you might just have to deal with the unconditional you're losing all that info that you still gradually want to keep you should have made a backup beforehand especially knowing that you keep a screen lock but you forgot it... I don't know if he had passwords etc backed up through your Google account if you have a Google account and a serious question is your phone even the unlockable type? I would suggest making backups and keeping them on a PC not directly onto your phone does backup every file manually but you may have to take the slight loss on this one I'm not 100% on that but I wish you luck I've been there before in the past and learn my lesson the harsh way

notmike_ said:
I seem to have really screwed things up. Device is at the required lock screen after a restart (biometrics are obv still fine), but I have forgotten my lock screen credential. USB debugging is not enabled, so adb isn't playing nice. Never unlocked the bootloader. What can I do other than wipe the device? I have data I wish to recover, so would prefer to rule out wiping, if possible.
Click to expand...
Click to collapse
Try to remember the pin, pattern or password you used. Whatever you do, DO NOT RESET THE DEVICE. If you do reset, Google's Factory Reset Protection will kick in, and you will need to know the pin, pattern or password to continue setting the device up.

I pretty much gave up for now. The timer between tries is at around 4m. I hope perhaps some day in the future that there may be a way to activate usb debugging on the device (for adb) or somehow otherwise get my data off, but I don't have super high hopes.

notmike_ said:
I pretty much gave up for now. The timer between tries is at around 4m. I hope perhaps some day in the future that there may be a way to activate usb debugging on the device (for adb) or somehow otherwise get my data off, but I don't have super high hopes.
Click to expand...
Click to collapse
if you know you google account you can easily unlock it but you will loos all your data , reset your device through recovery then while setting on FRP use your same account that you have setup on your device and it will ask you to add new account or use current . make sure you use current account and not new account
- hope this helps , if you dont get anything work around i would suggest you to go to nearest google SVC and ASk them for the same issue they will surely help as they have software to solve this kind of issue frequantly :good: