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Wifi unable to reconnect when coming back in range

I have this rather annoying problem with my OPO: When I'm on WiFi and go out of range and get within range of another WiFi (eg leaving from home in the morning and getting on the train where there's also WiFi) my OPO will not connect.
I've tried switching WiFi off and back on, tried forgetting network and connecting again but the network just displays as "Saved". Only thing that works is a reboot. Funny thing is that it actually detects open WiFi's and displays the question mark in the notification bar.
I've read that themes can cause WiFi problems so I haven't changed that. I'm using the Apex launcher with no visual changes.
I've rooted my phone but left the bootloader locked.
Any advice?

I'm rooted with the TWRP custom recovery installed. I had the same thing happen to me. If you toggle airplane mode on/off, it will reconnect. But, as for a solution, my fix was to restore a previous TWRP backup of my phone. I also had heard that the problem could be coming from a theme. What themes have you used? I bought the Flux theme and have been using its style and fonts. I was running the stock CM11s when this happend just a few days after getting my OPO. I would try a factory reset first. If that does not work, there is a thread in the OPO forums about flashing a factory image and getting back to 100% stock.
I have switched to the CM11 nightlies as of a couple of days ago. I will probably refrain from messing around with the theme packs for now.

kevinga said:
If you toggle airplane mode on/off, it will reconnect...
Click to expand...
Click to collapse
Works for me too
kevinga said:
What themes have you used?
Click to expand...
Click to collapse
None as I've read reports about themes causing WiFi problems.
kevinga said:
I would try a factory reset first.
Click to expand...
Click to collapse
Will probably unlock the bootloader. Then a factory reset should be taken care of I guess...

Anyone have a solution to this? My OPO is having this problem too and it is rather annoying...

GoTexan20 said:
Anyone have a solution to this? My OPO is having this problem too and it is rather annoying...
Click to expand...
Click to collapse
Have you taken the OTA update yet?

kevinga said:
Have you taken the OTA update yet?
Click to expand...
Click to collapse
I'm now on KTU84P and the problem is still there
Yesterday I failed to flash MAHDI and ended up clearing everything from my phone. I had to follow this guide:
http://forum.xda-developers.com/oneplus-one/general/guide-return-opo-to-100-stock-t2826541
to get back to pre-KTU84P (can't remember the build number).
So I guess it's safe to say that my phone has had all sorts of memory cleared. And the problem is still there...

kroogar said:
I'm now on KTU84P and the problem is still there
Yesterday I failed to flash MAHDI and ended up clearing everything from my phone. I had to follow this guide:
http://forum.xda-developers.com/oneplus-one/general/guide-return-opo-to-100-stock-t2826541
to get back to pre-KTU84P (can't remember the build number).
So I guess it's safe to say that my phone has had all sorts of memory cleared. And the problem is still there...
Click to expand...
Click to collapse
I really hate to hear that you are still having the wifi issue. One would think that if you flashed all partitions with a factory image that it would solve the problem. You might want to have a look at this thread. This guy was unsuccessful in fixing his efs and bluetooth problems until he flashed Color OS and then went back to CM. Have a read: http://forum.xda-developers.com/oneplus-one/general/fix-people-corrupt-efs-mobile-data-t2836389
Keep us posted.

kevinga said:
Keep us posted.
Click to expand...
Click to collapse
Will have a look at the ColorOS thread. But I think I'll give Mahdi another go first to see what that brings me.
Thanks for the link.

Flashed Mahdir ROM yesterday and though the rom works just fine my WiFi reconnect issue has not been resolved
I find flashing yet another rom (ColorOS) sounds a bit drastic. Really no way of debugging what's wrong?

GoTexan20 said:
Anyone have a solution to this? My OPO is having this problem too and it is rather annoying...
Click to expand...
Click to collapse
Have you been able to fix your wifi problem?
---------- Post added at 06:28 AM ---------- Previous post was at 06:24 AM ----------
kroogar said:
Flashed Mahdir ROM yesterday and though the rom works just fine my WiFi reconnect issue has not been resolved
I find flashing yet another rom (ColorOS) sounds a bit drastic. Really no way of debugging what's wrong?
Click to expand...
Click to collapse
Although is sounds drastic I think it would be worth trying.

kevinga said:
Have you been able to fix your wifi problem?
No. I'm waiting for the update to hit my phone and install it to see if that solves it. In the meantime though, I installed an app called Smart WiFi Locker that seems to keep the issue solved (for now)
Click to expand...
Click to collapse

GoTexan20 said:
kevinga said:
Have you been able to fix your wifi problem?
No. I'm waiting for the update to hit my phone and install it to see if that solves it. In the meantime though, I installed an app called Smart WiFi Locker that seems to keep the issue solved (for now)
Click to expand...
Click to collapse
Thanks for sharing. I think there are two things that can produce a major restore/fix to a phone - a nandroid restore and a major rom update. I hope it fixes yours. The nandroid restore is what saved mine.
Click to expand...
Click to collapse

kevinga said:
Although is sounds drastic I think it would be worth trying.
Click to expand...
Click to collapse
Been there. Done that. Read the book. Got the t-shirt.
Flashed ColorOS.
Factory reset.
Booted and got through into ColorOS (skipped account setup).
Booted into recovery.
Factory reset.
Restore backup of CM11S.
No dice :'-(
What are my options now?
A couple of days ago I completely wiped my OPO - radio, modem, everything and flashed a new stock image. Nothing has helped.
I really find it hard to believe this to be a hardware issue.

GoTexan20 said:
kevinga said:
I installed an app called Smart WiFi Locker that seems to keep the issue solved (for now)
Click to expand...
Click to collapse
Could it be Smart WiFi Toggler?
Click to expand...
Click to collapse

kroogar said:
Been there. Done that. Read the book. Got the t-shirt.
Flashed ColorOS.
Factory reset.
Booted and got through into ColorOS (skipped account setup).
Booted into recovery.
Factory reset.
Restore backup of CM11S.
No dice :'-(
What are my options now?
A couple of days ago I completely wiped my OPO - radio, modem, everything and flashed a new stock image. Nothing has helped.
I really find it hard to believe this to be a hardware issue.
Click to expand...
Click to collapse
Just for clarification - after flashing Color OS, did you turn on wifi and use it to see if the problem was still there while in Color OS?

If your WiFi 2.4 or 5GHZ?
Sent from my A0001 using Tapatalk

kevinga said:
Just for clarification - after flashing Color OS, did you turn on wifi and use it to see if the problem was still there while in Color OS?
Click to expand...
Click to collapse
Eh... nopes - should I have...?

fr4c said:
If your WiFi 2.4 or 5GHZ?
Click to expand...
Click to collapse
My phone is set to auto but I have tried setting it to 2.4 and 5 GHz respectively. Nothing works.

kroogar said:
Eh... nopes - should I have...?
Click to expand...
Click to collapse
Yes. I would recommend you consider doing that. If it works then I would flash a fresh Cm11s rom, not a nandroid backup. Flash the Color OS and do a full check of the Wifi.
Sent from my A0001 using XDA Free mobile app

kroogar said:
My phone is set to auto but I have tried setting it to 2.4 and 5 GHz respectively. Nothing works.
Click to expand...
Click to collapse
I was having the same issue, but here's what I did and it seems to have resolved my issue.
1) Updated firmware on my ASUS AC68 router
2) Boot into recovery mode (volume down+power), wipe cache and media, then factory wipe
3) When setting up phone, did not apply CM theme on the options after logging into CM account.
It seems like WiFi might drop when you get to homescreen, just reboot phone and Wifi should reconnect. Make sure to go into your WiFi settings and remove any networks that was saved, and re-add.
Still not ideal (since it seems like themes might be killing WiFi for some users), so hopefully a new OTA update will solve this problem.

Recovered from boot loop but constant crashes with older ROM

I am helping a friend to get his One Plus One 64GB to work again after an OTA update broke it.
Initial Problem
Two days ago she started an OTA update which made the phone reboot constantly before even android started. Basically it showed the logo for about 6s then vibrated and restarted again. I later found /o/Android/data/com.cyngn.fota/cache/cm-12.0-YNG1TAS17L-bacon-signed.zip so I assume that this was what was installed.
The phone is completely untouched otherwise. She has no computer knowledge whatsoever and says she didn't give it to anyone.
My attempt
I was able to install cm-11.0-XNPH33R-bacon-signed.zip and cm-11.0-XNPH22R-bacon-signed.zip via sideloading. The phone started ok but was crashing all the time. I am not able to get into settings to activate developer settings (adb) because the crash notifications hinder navigation and after about 10s the whole gui crashes and I see the black screen with the hexagon loading logo. The latter firmware is worse meaning it crashes at a higher frequency.
The Problem
She didn't expect any problems and does not have a backup of her data. Thus I can't do a factory reset or use fastboot.
Question
Did I use the wrong ROM? There seem to be many variants. I haven't found any information which explains the differences.
Could I maybe flash a minimal ROM that would not crash to backup the data and than do a factory reset?
Is there any way to activate adb access without having to navigate to settings?

I've experienced your issues as well when helping another friend out, try using a newer version of cm11s, something like 44S /44R (i dont remember what it is) or 05Q, those should not have the issue and everything should work fine

Jst flash a newer modem in recovery

mugoftee said:
I am helping a friend to get his One Plus One 64GB to work again after an OTA update broke it.
Initial Problem
Two days ago she started an OTA update which made the phone reboot constantly before even android started. Basically it showed the logo for about 6s then vibrated and restarted again. I later found /o/Android/data/com.cyngn.fota/cache/cm-12.0-YNG1TAS17L-bacon-signed.zip so I assume that this was what was installed.
The phone is completely untouched otherwise. She has no computer knowledge whatsoever and says she didn't give it to anyone.
My attempt
I was able to install cm-11.0-XNPH33R-bacon-signed.zip and cm-11.0-XNPH22R-bacon-signed.zip via sideloading. The phone started ok but was crashing all the time. I am not able to get into settings to activate developer settings (adb) because the crash notifications hinder navigation and after about 10s the whole gui crashes and I see the black screen with the hexagon loading logo. The latter firmware is worse meaning it crashes at a higher frequency.
The Problem
She didn't expect any problems and does not have a backup of her data. Thus I can't do a factory reset or use fastboot.
Question
Did I use the wrong ROM? There seem to be many variants. I haven't found any information which explains the differences.
Could I maybe flash a minimal ROM that would not crash to backup the data and than do a factory reset?
Is there any way to activate adb access without having to navigate to settings?
Click to expand...
Click to collapse
The problem here is that you flashed an older build, going backwards like that is what's causing the crashes. Grab the latest build from here:
https://www.androidfilehost.com/?fid=24052804347802356
Flash that and hopefully you'll be ok.

PivotMasterNM said:
I've experienced your issues as well when helping another friend out, try using a newer version of cm11s, something like 44S /44R (i dont remember what it is) or 05Q, those should not have the issue and everything should work fine
Click to expand...
Click to collapse
That won't help, flashing an older build than what was previously installed without wiping properly will cause problems.
KURDKiNG said:
Jst flash a newer modem in recovery
Click to expand...
Click to collapse
Modem has nothing to do with this.

Well mines did like it was at lockscreen and wen i tried to unlock it rebooted so i jst flash a modem and booted fine

KURDKiNG said:
Well mines did like it was at lockscreen and wen i tried to unlock it rebooted so i jst flash a modem and booted fine
Click to expand...
Click to collapse
Most likely pure coincidence.

Thanks your reply!
Heisenberg said:
The problem here is that you flashed an older build, going backwards like that is what's causing the crashes. Grab the latest build from here:
https://www.androidfilehost.com/?fid=24052804347802356
Flash that and hopefully you'll be ok.
Click to expand...
Click to collapse
Actually this is what I did in the very first beginning but I encountered the same rebooting symptoms like after the OTA update. Since it didn't seem to change anything I didn't mention it. I used cm-12.1-YOG4PAS1N0-bacon-signed.

Any other ideas? I am about to unlock it with fastboot but really would prefer not to delete all user data.

mugoftee said:
Any other ideas? I am about to unlock it with fastboot but really would prefer not to delete all user data.
Click to expand...
Click to collapse
I don't think you have any other option unfortunately.

Oneplus One LTE Issue

Dear All,
I don't know if I have posted it at the right place if I have not please guide me.
I tried my best to find a solution but couldn't that's why I am posting this.
So here I begin,
I am using OnePlus One from last 2 years and it is still working fine.
I have spent most of the time on Sultan's Rom which ran without any issues.
Recently I flashed [ROM][OFFICIAL][7.1.1_r9][BACON][OPTIMIZED]RESURRECTION REMIX [5.8.0] Rom and it worked well too.
But all of a sudden I started experiencing LTE signal drop.
I always do Nandroid backups so I restored to Sultan Rom but the problem was still there.
I have tried flashing modems with no luck.
Now I have started experiencing intermittent 3G signal too.
I have even tried restoring old KK backups but that doesn't resolve the problem.
This is so frustrating, Please help.
Let me know if more information is needed.

iamvashisht said:
Dear All,
I don't know if I have posted it at the right place if I have not please guide me.
I tried my best to find a solution but couldn't that's why I am posting this.
So here I begin,
I am using OnePlus One from last 2 years and it is still working fine.
I have spent most of the time on Sultan's Rom which ran without any issues.
Recently I flashed [ROM][OFFICIAL][7.1.1_r9][BACON][OPTIMIZED]RESURRECTION REMIX [5.8.0] Rom and it worked well too.
But all of a sudden I started experiencing LTE signal drop.
I always do Nandroid backups so I restored to Sultan Rom but the problem was still there.
I have tried flashing modems with no luck.
Now I have started experiencing intermittent 3G signal too.
I have even tried restoring old KK backups but that doesn't resolve the problem.
This is so frustrating, Please help.
Let me know if more information is needed.
Click to expand...
Click to collapse
I'd do a complete clean restore of last official stock. If the issue still persists, it must be a hardware issue or an issue with your carrier.
If your device is wiped clean and stock software restored, there's no way it can be a software issue.
Good luck!

iamvashisht said:
Dear All,
I don't know if I have posted it at the right place if I have not please guide me.
I tried my best to find a solution but couldn't that's why I am posting this.
So here I begin,
I am using OnePlus One from last 2 years and it is still working fine.
I have spent most of the time on Sultan's Rom which ran without any issues.
Recently I flashed [ROM][OFFICIAL][7.1.1_r9][BACON][OPTIMIZED]RESURRECTION REMIX [5.8.0] Rom and it worked well too.
But all of a sudden I started experiencing LTE signal drop.
I always do Nandroid backups so I restored to Sultan Rom but the problem was still there.
I have tried flashing modems with no luck.
Now I have started experiencing intermittent 3G signal too.
I have even tried restoring old KK backups but that doesn't resolve the problem.
This is so frustrating, Please help.
Let me know if more information is needed.
Click to expand...
Click to collapse
if clean flash through fastboot don't work out,try changing network antenna.
I don't think it's a carrier issue because it was perfect before.
The problem in network antenna must've been due to sudden drops or heavy impact.

Mr.Ak said:
if clean flash through fastboot don't work out,try changing network antenna.
I don't think it's a carrier issue because it was perfect before.
The problem in network antenna must've been due to sudden drops or heavy impact.
Click to expand...
Click to collapse
Hi, thank you for replying.. Flashing stock ROM from fastboot is different than flashing it from twrp recovery?
Please let me know if it is.
I will certainly give it a try then.

Darth said:
I'd do a complete clean restore of last official stock. If the issue still persists, it must be a hardware issue or an issue with your carrier.
If your device is wiped clean and stock software restored, there's no way it can be a software issue.
Good luck!
Click to expand...
Click to collapse
Hi, thanks for replying... I will do a clean install, does it need to be done via fastboot or just recovery?
And do I need to wipe internal storage too?
Since fresh installs via recovery couldn't resolve the problem..

iamvashisht said:
Hi, thanks for replying... I will do a clean install, does it need to be done via fastboot or just recovery?
And do I need to wipe internal storage too?
Since fresh installs via recovery couldn't resolve the problem..
Click to expand...
Click to collapse
Flash stock Cos13 through fastboot,it will wipe your internal storage so take a backup.
Refer to guide "Bring your device back to stock Cos by Eddy".

Mr.Ak said:
Flash stock Cos13 through fastboot,it will wipe your internal storage so take a backup.
Refer to guide "Bring your device back to stock Cos by Eddy".
Click to expand...
Click to collapse
Thanks man... Gonna give it a try...

iamvashisht said:
Thanks man... Gonna give it a try...
Click to expand...
Click to collapse
I did a clean install via fastboot, that unfortunately didn't resolve the problem.

iamvashisht said:
I did a clean install via fastboot, that unfortunately didn't resolve the problem.
Click to expand...
Click to collapse
Do you have 'unknown' baseband?? I was stuck on 3g due to that..

Issue Resolved
I dont know what happened, I had flashed stock cm13.1 via fastboot.
I checked and that didnt resolve the problem, so I had accepted the way things were and started using my 3g.
All of a sudden the 4g signal came this morning and now I can use LTE well.
I dont know how long it will stay but seems like phone decided to bring back 4g.

iamvashisht said:
I dont know what happened, I had flashed stock cm13.1 via fastboot.
I checked and that didnt resolve the problem, so I had accepted the way things were and started using my 3g.
All of a sudden the 4g signal came this morning and now I can use LTE well.
I dont know how long it will stay but seems like phone decided to bring back 4g.
Click to expand...
Click to collapse
Bro, I am facing the exact same issue man. My LTE still doesn't work. I tried installing various modems. Still no use. I hope it does soon. :/
---------- Post added at 04:58 PM ---------- Previous post was at 04:56 PM ----------
Im facing the excat same issue. Did everything and nothing worked. Somebody please help. :/

Bro try flashing stock cm13 via fastboot... That will wipe your internal storage but eventually bring back 4G

I am also facing network drop issue for last few weeks.at first i thought it may be rom's problem,because generally i try a new rom in every 2/3 weeks,but now i notice that ,i am facing the issue in all roms,i read all the comments in this threads and see that cm13.1 can solve my issue.but can i solve my issue within any nougat rom?

I too am having the issue. Occasionally my 3/4g data just cuts out but it is still enabled in settings. It seems to be when I come off of WiFi most of the time. I'm on CM13.1 by jgcaap.
I'm going to flash back to full stock and then reinstall TWRP, then the ROM. I have a few issues and I figured it was time for a fresh flash.
Sent from my A0001 using XDA-Developers Legacy app

iamvashisht said:
Bro try flashing stock cm13 via fastboot... That will wipe your internal storage but eventually bring back 4G
Click to expand...
Click to collapse
Are you talking about CyanogenMod 13?
I clean installed COS 13.1.2 via fast boot. It even removed TWRP and brought back Cyanogen recovery. The problem didn't resolve.
Can I install CyanogenMod 13 via fastboot now? or should I unlock bootloader, install TWRP and then install CyanogenMod 13 via fastboot? Please help. I'm a beginner.

In my opinion you should unlock bootloader and then reinstall via fastboot...

iamvashisht said:
In my opinion you should unlock bootloader and then reinstall via fastboot...
Click to expand...
Click to collapse
I'm right now on COS 13.1.2.
Lets say I install CM 13 via fastboot and my LTE works. Can I again revert back to COS 13.1.2 using fastboot without affecting LTE again?
Thanks for the help. I will try that this Sunday and Will tell you if it works.

Andy928 said:
I'm right now on COS 13.1.2.
Lets say I install CM 13 via fastboot and my LTE works. Can I again revert back to COS 13.1.2 using fastboot without affecting LTE again?
Thanks for the help. I will try that this Sunday and Will tell you if it works.
Click to expand...
Click to collapse
The latest official build is 13.1.2.
You can flash that via fastboot

iamvashisht said:
The latest official build is 13.1.2.
You can flash that via fastboot
Click to expand...
Click to collapse
Hi Brother. Thank you so much for your help.
My LTE is working now. I unlocked bootloader using fastboot. I installed CM 13 tugapower ROM using TWRP provided by Tugapower. Its all back to normal. I'm so glad. i'm not going to change a damn thing now. ha ha.
Lot of tries and finally its working. Can Push this baby for another year now.
---------- Post added at 07:02 AM ---------- Previous post was at 06:59 AM ----------
donk165 said:
I too am having the issue. Occasionally my 3/4g data just cuts out but it is still enabled in settings. It seems to be when I come off of WiFi most of the time. I'm on CM13.1 by jgcaap.
I'm going to flash back to full stock and then reinstall TWRP, then the ROM. I have a few issues and I figured it was time for a fresh flash.
Sent from my A0001 using XDA-Developers Legacy app
Click to expand...
Click to collapse
Try Installing Tugapower TWRP and his CM13 ROM. My LTE is working and everything's back to normal!

Congrats man..happy for you...
And yeah we can push this phone for another year...
?

[Completed] LineageOS 14.1 APN issue SM-G900V

SM-G900V (PB1) KLTE, Samsung eMMC (CID 15)
When I first was able to install Lineage everything seem to work fine. But when I woke up the next morning I had a notification saying SIM card not found. So I went to go to cellular networks to check the APN and when I clicked it I recieved an error com.android.phone error. Would you like to restart or mute. Neither option worked. So I reflashed the os and still had the same issue. With TWRP I reformatted and wiped all data and tried for a fresh install. Nothing worked. Was wondering if anyone knows of anything. If you took the time to read this I thank you for your interest.

Rismr said:
SM-G900V (PB1) KLTE, Samsung eMMC (CID 15)
When I first was able to install Lineage everything seem to work fine. But when I woke up the next morning I had a notification saying SIM card not found. So I went to go to cellular networks to check the APN and when I clicked it I recieved an error com.android.phone error. Would you like to restart or mute. Neither option worked. So I reflashed the os and still had the same issue. With TWRP I reformatted and wiped all data and tried for a fresh install. Nothing worked. Was wondering if anyone knows of anything. If you took the time to read this I thank you for your interest.
Click to expand...
Click to collapse
Greetings and welcome to assist. This sounds like a rom specific bug, have you tried grabbing a log and posting it in the rom thread ?
Regards
Sawdoctor

sawdoctor said:
Greetings and welcome to assist. This sounds like a rom specific bug, have you tried grabbing a log and posting it in the rom thread ?
Regards
Sawdoctor
Click to expand...
Click to collapse
Thank you for replying. I seem to have fixed the issue. So I flashed the phone back to factory and rerooted and reflashed rom and it seemed to fix the issue. Not sure I understand how. This time I did wait for a little bit after rom booted and it seemed to eventually work.

Rismr said:
Thank you for replying. I seem to have fixed the issue. So I flashed the phone back to factory and rerooted and reflashed rom and it seemed to fix the issue. Not sure I understand how. This time I did wait for a little bit after rom booted and it seemed to eventually work.
Click to expand...
Click to collapse
As long as its all working thats the main thing

Question Random Restarts

So anyone else having random restart issues no matter what firmware you are running?
I am having this issue even after updating the firmware (yes I managed to get it updated lol didn't realize need to do it in increments rather straight to the latest).
I found a work around sort of but it requires having my hotspot on and another device connected at all times to keep the phone from restarting randomly.
Has anyone else ran into this issue and have a fix? Could it be a battery optimization setting?
Thanks

i got it when i update the rog 5 to latest version so i factory reset it then worked well

messhary said:
i got it when i update the rog 5 to latest version so i factory reset it then worked well
Click to expand...
Click to collapse
Ok thank you for replying, I just finished backing up with Migrate and going to do a factory wipe and then restore all my apps. Hopefully that solves my issues.

I have the same problem for last two firmware updates, for each update I need to do a full factory reset in order to let it work again!