[Q] No SIM card - Emergency calls only - Nexus 5 Q&A, Help & Troubleshooting

Hi, everyone, sorry to bother you, but I'm in a bit of a pinch.
My unrooted stock Nexus 5 was running smoothly with then latest OTA update 5.0.1 until I got No SIM card error. I eliminated SIM card as problem source, removed SIM, discharged it completely and after few days turned it on and it was working. But problem returned soon and same method didn't show result. So things I already did:
- check my card in other phone: works
- check other cards in my phone: doesn't work either
- left it off without SIM for a few days
- erase cache
- upgrade to OTA 5.1.0
- factory reset
- unplug battery from motherboard for some time
- flash stock 4.4.4 from developers google com
- put some tape on card to make contact better
in this order. My next move would be to check if SIM card case pins are broken. Warranty expired month ago so there's that. Do you have any advice to give me? Is there any part of the phone that could've stayed not wiped during 4.4.4 stock flash and that's the reason problem remained?

You have a weather widget, clock, GPS location app that is causing the issue. Try uninstalling one at a time until you find the culprit. For me it was transparent weather clock widget that was causing this. Something about the way the app polls the GPS location causes problems.

I flashed stock 4.4.4 and only stock apps are present. I can either uninstall upgrades or root and delete gapps for good. What say you? I think phone somehow got "stupid" hard and I have to reset certain part that wasn't affected during flashing because it haven't once worked throughout process.

My nexus 5 is doing the exact same thing, exactly as you described, since the update. I'm losing my mind
Seeing as we both have the issue I don't think its a problem with your phone in specific. If anyone knows please help! I've tried uninstalling every app, going on safe mode, swapping sims etc

ag1000 said:
My nexus 5 is doing the exact same thing, exactly as you described, since the update. I'm losing my mind
Seeing as we both have the issue I don't think its a problem with your phone in specific. If anyone knows please help! I've tried uninstalling every app, going on safe mode, swapping sims etc
Click to expand...
Click to collapse
If it happened immediately or just after update try flashing stock KitKat.

Got the same trouble
The problems begun 1 week ago with interruptions with the radio, i have to restart the phone with Stockrom 5.1 self flashed and uber-kernel to get any connection. Switch the airplane mode often to get any radio signals. I ask my provider o2-germany for some trouble in their radio stations - and there was, just a few hours it worked. In a few days ago I traveled across germany, from the south to the north and back, got while traveling no good receptions, only gprs and edge. And now I switched from stock-rom 5.1 to OptiPop 5.1 the trouble begins with no-simcard ...
I will try xTraSmooth 5, when this ist not working i try an older image...
Edit:
OptiPop working now without flashing UBER Kernel. Now Issues so far!

Mine is absolutely stock on 5.1, not seen it once in 18 months and now it has done it twice in 12 hours.

I've always been completely stock and my phone started doing this every time I reboot it. Any more word on this? It also does seem my GPS looses lock on a lot too. This seems to have started since the last OTA update a few weeks back or so.

after i flash latest factory image mmb29v I got No SIM card error. There is an error in Safe Mode and SIM card not detected .pleas help me

Related

[Q] Note pro 12.2 keeps rebooting after using facebook app

i just got my note pro 12.2 wifi version (international) a few days ago and already experiencing problems, firstly the wifi was so slow so i updated it OTA to the latest stock firmware i can't remember what it is but it's the latest official 4.4.2 they have and that improved the wifi but now i'm encountering issues of rebooting randomly after using facebook app. it's always after i lock the screen it suddenly reboots after 2 mins or something especially if i have say been using a lot of memory for it.. ie if i scroll down 4000 friends that's when it always reboots once i lock the screen. is this liekly to be hardware or software issue or an app issue?
i have only had it a few days so haven't managed to play with it enough to test it to the max.
just now it rebooted and i played one youtube HD video and used multi window to use the facebook app (old version 7.0 - i like this version).. but i hadn't used the facebook app that much while on, the only thing i did different was i plugged in my samsung s3 charger into the note pro to test how long it would take to charge using a usb 2.0 connection instead. it's official charger official cable, is that likely to cause reboot issues?
previously it was just after using facebook for a long time for a ram intensive amount, i also tested it after reboot and using facebook a bit and locking screen and it didn't reboot so it made me think ok it's just when facebook is being used a lot and all the ram and memory is exhausted caching 4000 friends viewing so i didn't think anything of it.
is this likely to be hardware or software issue? are hardware issues ever the main problem with rebooting?
I know the usual tests, having to use odin to flash official firmware, trying a different facebook version, removing and not using facebook at all and see if it still reboots and lastly factory reset.
ideally i'd like to avoid all of those things as it is a major hassle and i can live with the reboot issue provided it isn't a hardware problem. is there anyway to test it to know for certain it is hardware and not software and the app?
edit: it keeps rebooting even if i dont use the app
seems to happen when i lock the screen sometimes it just reboots randomly.
anyone else have this?
You could try to remove that facebook app and see if that fixes the problem.
does anyone know what is causing this?? is it hardware?
i've factory reset removed all apps, then added one app at a time then added about 6gb of videos and added wakelock detector. all seemed fine
then i tried to unmount the sd card and then it rebooted.. why is it doing this??
pete101 said:
does anyone know what is causing this?? is it hardware?
i've factory reset removed all apps, then added one app at a time then added about 6gb of videos and added wakelock detector. all seemed fine
then i tried to unmount the sd card and then it rebooted.. why is it doing this??
Click to expand...
Click to collapse
Could it be a bad sector on the SD card? I'd long format it using a pc to be sure.
Sent from my SM-P900 using Tapatalk
it's not the faceboook k app i've realised now it just coincidentally seemed to be that as it is ram intensive.
i factory reseted and then put the app back on but didn't log in. 3 times it has rebooted by itself over different scenarios.. 1 plugging in a samsung usb 2.0 charger from a samsung s3, 2 when unmounting sd card, 3 when closing the screen when any ram intensive app is in the background (there's still like 500mb of ram left!! i dont know why it's rebooting like this.
i can't figure it out. is anyone else having these issues? im not sure if it's a kitkat 4.4.2 issue.. reading forums from other users with different devices i'm seeing the reboot issue coming up alot especially on the s4.
http://forum.xda-developers.com/xposed/modules/samsung-kitkat-systemserver-crash-fix-t2806046/page22
but i dont know for certain if it's a hardware issue.
my next steps which i really want to avoid is to factory reset AGAIN and not load any apps (the problem with this is it requires a certain amount of ram intensity to be used before it randomly happens.. if i dont add any apps like instagram or facebook or tumblr i can't get it back to the state where it reboots randomly)
i've also enabled all apps (i usually disable all the bloatware i can without being rooted) but it does bring up errors of android.core.process has stopped etc and some gapps errors (im hoping this is the cause of the reboot) and see if it reboots. it's difficult recreating the scenario consistently.
i udnerstand it might reboot if you've overused the memory but it clearly shows lots is free so i can't figure out what is causing it?
my next step after all this is to flash the latest version of stock so i can't put it down to the OTA updates that is causing it. if that fails i revert to odin to flash the original 4.4.2 it came with.. and failing that i'll have to return it
does anyone have any ideas whether it is hardware (maybe the power button is slightly off so when you press down it in a certain angle it triggers a restart?)
or is the motherboard or corrupted sector of the memory which when it writes over it causes the reboot?
i always assumed reboot issues were normally always firmware issues and not hardware.. surely samsungs quality control is a bit better than that??
If it were me I would yank the microsd card out, factory reset, set up just my gmail without allowing auto backup/restore and apply all updates. I'd then let the tablet run for a full day and use it just for web browsing and Youtube to see if the problem is still there. I would not install anything for at least a day, including the microsd card. This would be as stock as one could get and rule out the possibility of it being any software that I installed or the microsd that I was using.
I suspect it's software but the only way to know is to be patient and test it out for sure.
Sent from my SM-P900 using Tapatalk
Hi,
same tablet, bought there is 3 weeks. I installed the latest firmware update (XXUANI1)
I rooted the tablet (to allow sd-card writing).
and that's it.
like some of you, I have random reboot.
I can't remember if it happened before the root or not. I think that yes, but I am not 100% sure.
I don't see anyone reported that the root cause random reboot...
it is really random. sometime, the tablet stay one night without reboot, sometime, I can have 3 reboot in one hour.
I don't find what kind of application is causing that issue.
I really believe that it is software. before the firmware update, I stayed 2 weeks without any issue.
I tried to reboot in recovery mode, and wipe the cache, without success.
I will probably try to do a factory reset...
Olivier
orobin said:
Hi,
same tablet, bought there is 3 weeks. I installed the latest firmware update (XXUANI1)
I rooted the tablet (to allow sd-card writing).
and that's it.
like some of you, I have random reboot.
I can't remember if it happened before the root or not. I think that yes, but I am not 100% sure.
I don't see anyone reported that the root cause random reboot...
it is really random. sometime, the tablet stay one night without reboot, sometime, I can have 3 reboot in one hour.
I don't find what kind of application is causing that issue.
I really believe that it is software. before the firmware update, I stayed 2 weeks without any issue.
I tried to reboot in recovery mode, and wipe the cache, without success.
I will probably try to do a factory reset...
Olivier
Click to expand...
Click to collapse
Assuming you have custom recovery installed as well; have you tried wiping dalvic? It will force applications to recompile and possibly fix a corrupted application or its associated files.
Hi,
I just checke.…
I was thinking that the root method was not setting the knox flag, so i was thinking there is no recovery in the file flashed… .
I was wrong.
My waranty is void, knox is set. I still have no custom recovery : in the file provided by chainfire, there is a recovery which is probably coming from samsunG…
So i will install a new recovery and try to wipe all caches dalvik.etc.
Hi,
since my knox is set now :
I tried to install TWRP recovery, which allow me to do a wipe of the cache AND dalvik Cache.
it did not resolved anything. the tablet still reboots randomly.
then, I decided to restart from scratch :
I flashed the same firmware I had, using ODIN, and do not root it.
this is this firmware : http://www.sammobile.com/firmwares/database/SM-P900/XEF/
I will keep you updated if it solve the reboot issue or not.
thanks
Olivier
pete101 said:
i always assumed reboot issues were normally always firmware issues and not hardware.. surely samsungs quality control is a bit better than that??
Click to expand...
Click to collapse
Hi
I had the same problem and also thought it was the power button that was faulty but then I flashed the previous firmware then tried to use it a bit and no reboots since so I guess samsung released a new firmware that solved the slow wifi problem but then boosted it a little too much or so it seems judging by the reboots whenever there's too much overload.
So I guess for now I will stick with an older firmware
oops... it rebooted while I was surfing the play store so I guess I spoke too soon

Wifi / Bluetooth / Sim Card Issues Since Last Two OTA Updates

I received an OTA Update in early to mid May. I am now forgetting which version I received at that time. ( I forget as I have done so many downgrades/upgrades/factory resets in my troubleshooting the last month!) Up until these issues, I've never rooted or flashed a ROM, or unlocked boot loader or anything. My N5 had always been completely stock.
First Issue
It all started with just the sim card. I get "no sim card" message, even though it was in there. This was my original SIM card and I had never ejected it since I bought it new. I found I could turn it off, pop it out and back in, and boot it again. Sometimes it will see the sim card again. It may take 20 times, but finally work.
I naturally got a new sim card, as well as confirmed said sim cards worked in other phones. My wifi and bluetooth were working fine at first. Working with google support, they recommended a factory reset to fix the sim card issue. Immediately after the factory reset, my bluetooth would no longer turn on nor show a MAC address. At this point, my wifi was fine.
Second Issue
In addition to the sim card slot issue, now my Bluetooth no longer works! Around this time, I received another OTA update, this time it was 5.1.1 LMY48B. I had hoped it would fix the issues, but no dice! I start reading up on the XDA forums as I am determined to start rolling back to see if this will fix anything. I unlocked the boot loaded, rooted, etc following the threads on XDA
Third Issue
I do all sorts of flashing to hammerhead-krt16m_4.4 to hammerhead-ktu84p_4.4.4 to hammerhead-lrx21o_5.0 to hammerhead-lmy48b_5.1.1 . On the final flash back to 5.1.1 my wifi now no longer works!!!!!!!!!!! It is stuck at wifi turning on and no MAC address shows. It also seems my cell data is very very slow now!
After many calls to google, I think I finally succeeded in getting a “ticket routed up”. My phone is from the play store around 10/31/2013. They keep pushing I am out of warranty. I attempt to ask for a refurb N5 without luck so far. I am not very confident anything will come from google. This being my only handset now, it is just not an option to send this to LG. My current state is my voice/txt and cell data are working. Data seems a little slow but usable. Wifi and bluetooth won't turn on. I also still have the sim car slot issue upon rebooting. After a bunch of reboots it will eventually see sim card.
What else can I try? Is there a better way to attempt to repair/reload my radio drivers? Perhaps there is corruption of sorts? I have not tried a custom ROM or radio or kernel…… I did take to a local tech. They looked at everything literally under a microscope and did not see any issues that way. I am in the USA and have a lgd820. Although we are quick to assume a hardware issue, I am wondering if there is some sort of incompatibility with the first run of N5 and lollipop….. who knows!
I’ve read all sorts of threads on the internet. It seems I am not the only one. We are very quick to assume it must be a bad motherboard, it just seems too coincidental to me!
Here is a collection of threads……
Within the N5 Sub
http://www.reddit.com/r/Nexus5/comments/2g0i3m/no_wifi_or_bluetooth/
http://www.reddit.com/r/Nexus5/comments/253y8d/my_nexus_wont_activate_wifi_and_bluetooth/
http://www.reddit.com/r/Nexus5/comments/2pur0v/wifi_stuck_on_turning_on_mac_and_ip_addresses/
http://www.reddit.com/r/Nexus5/comments/361ecw/help_wifi_and_bluetooth_stopped_working/
http://www.reddit.com/r/Nexus5/comments/2h4co7/wifi_wont_turn_on/
http://www.reddit.com/r/Nexus5/comments/2hpj2w/can_no_longer_connect_to_wifi_stuck_at_wifi/
http://www.reddit.com/r/Nexus5/comments/2wjk38/wifibluetooth_issues/
http://www.reddit.com/r/Nexus5/comments/2zboet/no_wifi_no_bluetooth_and_reboots_whenever_i_press/
Other Links
http://forum.xda-developers.com/google-nexus-5/help/wifi-stuck-t2721643
http://forum.xda-developers.com/google-nexus-5/help/bluetooth-t2733672
https://productforums.google.com/forum/#!topic/nexus/IJSOuc7gw0w;context-place=forum/nexus
https://productforums.google.com/fo...otification#!category-topic/nexus/1H6ZiIMYrtw
https://productforums.google.com/forum/#!topic/nexus/ke-OEPLbRSQ
https://productforums.google.com/fo...xus/lollipop|sort:relevance/nexus/NbO-AGvRCLk
http://code.google.com/p/android/issues/detail?id=80028
I found this, but not really sure it’s the same thing….. http://forum.xda-developers.com/showpost.php?p=52441901&postcount=47
Prodeje79 said:
I found this, but not really sure it’s the same thing….. http://forum.xda-developers.com/showpost.php?p=52441901&postcount=47
Click to expand...
Click to collapse
Hi,
This link was actually what i was going to suggest. It seems you've tried pretty much everything in the book except that.
I think its worth a try. Same as any other learning process, take your time and read the whole thing once or twice until you feel comfortable with the process. Then go for it.
Darn it, I should have downloaded those programs BEFORE rooting my phone again. Now I a struggloing to get my SIM card detected again to get data to DL them! whooops!
How would I go about attempting to read my files first to see if they are accessible and potentially write down my old MACs first?
EDIT: I found this but not sure how to get that working? I have Windows 7 and CMD prompt at this point. what program is that using?
https://www.reddit.com/r/Nexus5/comments/2j6vao/how_to_changefix_your_wifi_mac_address/
beekay201 said:
Hi,
This link was actually what i was going to suggest. It seems you've tried pretty much everything in the book except that.
I think its worth a try. Same as any other learning process, take your time and read the whole thing once or twice until you feel comfortable with the process. Then go for it.
Click to expand...
Click to collapse
OK, I went through those steps. everything appeared to go through correctly. Still no wifi nor bluetooth
EDIT: I rebooted a second time. WHen it first boot up, wifi was on and connected to my works AP. I quickly went in and snagged a screen shot of MAC address. Oddly enough, it did not match what I had input via hex editor. Within a few moments the wifi stopped working. It is back to the turning wifi on issue..... bluetooth still not working as well.
Very interesting.....
EDIT2: I get access denied when attempting to read either files within their corresponding folders under persist.
I was able to copy my stock files into my sdcard download folder and read them there without issue. Thus seeing my default addresses for both!
Perhaps it is normal, but I am never able to edit the old or new files under persist. I basically renamed original folders to bluetoothold and wifiold. I could delete them perhaps.
Note that I put my phone into airplane mode before doing anything noted in the steps.
Any other ideas? Given that it is showing my original MAC address the one time it worked, this makes me think that it is not reading the files .macaddr at all
I have the same problem. Funny thing is, the phone is just over 2 years old and the motherboard was replaced just 9 months ago (so, brand new one).
In my case, I received and Android update 2 days before I found the phone burning hot and restarting on it's own. Then the same chain of events you describe started to unleash. Now I can't be sure if this is software related, hardware related or both.
Can't seem to find a solution to the issue either.
Prodeje79 said:
I received an OTA Update in early to mid May. I am now forgetting which version I received at that time. ( I forget as I have done so many downgrades/upgrades/factory resets in my troubleshooting the last month!) Up until these issues, I've never rooted or flashed a ROM, or unlocked boot loader or anything. My N5 had always been completely stock.
First Issue
It all started with just the sim card. I get "no sim card" message, even though it was in there. This was my original SIM card and I had never ejected it since I bought it new. I found I could turn it off, pop it out and back in, and boot it again. Sometimes it will see the sim card again. It may take 20 times, but finally work.
I naturally got a new sim card, as well as confirmed said sim cards worked in other phones. My wifi and bluetooth were working fine at first. Working with google support, they recommended a factory reset to fix the sim card issue. Immediately after the factory reset, my bluetooth would no longer turn on nor show a MAC address. At this point, my wifi was fine.
Second Issue
In addition to the sim card slot issue, now my Bluetooth no longer works! Around this time, I received another OTA update, this time it was 5.1.1 LMY48B. I had hoped it would fix the issues, but no dice! I start reading up on the XDA forums as I am determined to start rolling back to see if this will fix anything. I unlocked the boot loaded, rooted, etc following the threads on XDA
Third Issue
I do all sorts of flashing to hammerhead-krt16m_4.4 to hammerhead-ktu84p_4.4.4 to hammerhead-lrx21o_5.0 to hammerhead-lmy48b_5.1.1 . On the final flash back to 5.1.1 my wifi now no longer works!!!!!!!!!!! It is stuck at wifi turning on and no MAC address shows. It also seems my cell data is very very slow now!
After many calls to google, I think I finally succeeded in getting a “ticket routed up”. My phone is from the play store around 10/31/2013. They keep pushing I am out of warranty. I attempt to ask for a refurb N5 without luck so far. I am not very confident anything will come from google. This being my only handset now, it is just not an option to send this to LG. My current state is my voice/txt and cell data are working. Data seems a little slow but usable. Wifi and bluetooth won't turn on. I also still have the sim car slot issue upon rebooting. After a bunch of reboots it will eventually see sim card.
What else can I try? Is there a better way to attempt to repair/reload my radio drivers? Perhaps there is corruption of sorts? I have not tried a custom ROM or radio or kernel…… I did take to a local tech. They looked at everything literally under a microscope and did not see any issues that way. I am in the USA and have a lgd820. Although we are quick to assume a hardware issue, I am wondering if there is some sort of incompatibility with the first run of N5 and lollipop….. who knows!
I’ve read all sorts of threads on the internet. It seems I am not the only one. We are very quick to assume it must be a bad motherboard, it just seems too coincidental to me!
Here is a collection of threads……
Within the N5 Sub
http://www.reddit.com/r/Nexus5/comments/2g0i3m/no_wifi_or_bluetooth/
http://www.reddit.com/r/Nexus5/comments/253y8d/my_nexus_wont_activate_wifi_and_bluetooth/
http://www.reddit.com/r/Nexus5/comments/2pur0v/wifi_stuck_on_turning_on_mac_and_ip_addresses/
http://www.reddit.com/r/Nexus5/comments/361ecw/help_wifi_and_bluetooth_stopped_working/
http://www.reddit.com/r/Nexus5/comments/2h4co7/wifi_wont_turn_on/
http://www.reddit.com/r/Nexus5/comments/2hpj2w/can_no_longer_connect_to_wifi_stuck_at_wifi/
http://www.reddit.com/r/Nexus5/comments/2wjk38/wifibluetooth_issues/
http://www.reddit.com/r/Nexus5/comments/2zboet/no_wifi_no_bluetooth_and_reboots_whenever_i_press/
Other Links
http://forum.xda-developers.com/google-nexus-5/help/wifi-stuck-t2721643
http://forum.xda-developers.com/google-nexus-5/help/bluetooth-t2733672
https://productforums.google.com/forum/#!topic/nexus/IJSOuc7gw0w;context-place=forum/nexus
https://productforums.google.com/fo...otification#!category-topic/nexus/1H6ZiIMYrtw
https://productforums.google.com/forum/#!topic/nexus/ke-OEPLbRSQ
https://productforums.google.com/fo...xus/lollipop|sort:relevance/nexus/NbO-AGvRCLk
http://code.google.com/p/android/issues/detail?id=80028
I found this, but not really sure it’s the same thing….. http://forum.xda-developers.com/showpost.php?p=52441901&postcount=47
Click to expand...
Click to collapse
+1
I'm facing the same issues and I tried all the possible steps I could find on internet trying to repair the problem.
Actually, since the latest updates I was encountering some issues with the WiFi only: not turning on either off and not showing properly the MAC addres. So I decided to factory reset, even SDcard and since yesterday I have tried all the possibile guide I found to internet to fix the MAC address not showing and the WiFi not turning on/off but nothing worked. I tried even to flash again the old factory images, such as KitKat, Lollipop, etc., to lock the bootloader again and to dismantle the phone in order to clean the motherboard, but nothing worked. Phone still gives me MAC address 02:00:00:00:00:00 alternatively with the correct one, I can't figure out on what it depends because sometime it seems to work: it shows the correct MAC, it connects to wifi network; suddenly it doesn't!
I'm really going crazy to understand what's wrong.
You'll have to dig up my final posts on this , but in a nutshell, send into LG for repair, select cheapest option they offer. Receive mint phone. My cost was $45 and about one month... I picked up a cheap $20 phone to get me by.
In other news.... I now have a 6p!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Renton91 said:
+1
I'm facing the same issues and I tried all the possible steps I could find on internet trying to repair the problem.
Actually, since the latest updates I was encountering some issues with the WiFi only: not turning on either off and not showing properly the MAC addres. So I decided to factory reset, even SDcard and since yesterday I have tried all the possibile guide I found to internet to fix the MAC address not showing and the WiFi not turning on/off but nothing worked. I tried even to flash again the old factory images, such as KitKat, Lollipop, etc., to lock the bootloader again and to dismantle the phone in order to clean the motherboard, but nothing worked. Phone still gives me MAC address 02:00:00:00:00:00 alternatively with the correct one, I can't figure out on what it depends because sometime it seems to work: it shows the correct MAC, it connects to wifi network; suddenly it doesn't!
I'm really going crazy to understand what's wrong.
Click to expand...
Click to collapse

Strange and significant reset and camera problems after latest update

I've got some very strange issues happening since the latest T-Mobile update to baseband G930TUVU2APC8.
The phone is a T-Mobile Galaxy S7 with a Sandisk 200GB micro SD card installed
Whenever I'm on a phone call through a my Jawbone Era (and charging; I haven't tried it unplugged) the phone will behave as if it did a reboot, without actually rebooting, every few minutes. The phone will stop responding for about 20 seconds, then show just the wallpaper for about 5 seconds, then go back to the lock screen. At this lock screen it requires me to enter my password instead of using fingerprint as if it had just powered up. The phone call does not drop through all of this.
The next issue is that some pictures taken from the quick launch are sometimes not saved. I'm not 100% sure that this only happens after the reboot issue above, but I think it does. I have secure startup disabled .
I tried a factory reset which did not fix the issue, contacted t-mobile and was sent a replacement device that still has the problem. None of this was happening prior to the latest update.
Has anyone else experienced these issues? Also, is it possible to downgrade the firmware version?
Thank you,
Matthew
techy101 said:
I've got some very strange issues happening since the latest T-Mobile update to baseband G930TUVU2APC8.
The phone is a T-Mobile Galaxy S7 with a Sandisk 200GB micro SD card installed
Whenever I'm on a phone call through a my Jawbone Era (and charging; I haven't tried it unplugged) the phone will behave as if it did a reboot, without actually rebooting, every few minutes. The phone will stop responding for about 20 seconds, then show just the wallpaper for about 5 seconds, then go back to the lock screen. At this lock screen it requires me to enter my password instead of using fingerprint as if it had just powered up. The phone call does not drop through all of this.
The next issue is that some pictures taken from the quick launch are sometimes not saved. I'm not 100% sure that this only happens after the reboot issue above, but I think it does. I have secure startup disabled .
I tried a factory reset which did not fix the issue, contacted t-mobile and was sent a replacement device that still has the problem. None of this was happening prior to the latest update.
Has anyone else experienced these issues? Also, is it possible to downgrade the firmware version?
Thank you,
Matthew
Click to expand...
Click to collapse
The problem started in PB8 firmware, PC8 firmware has constant wifi dropout issues, you might find even that at 3G connection performing better than fiber optic wifi internet.
Easiest is to update facebook to latest version and see how many "can not connect right now" errors.
Random reboots is normal never mind how many times your factory reset or do a full firmware PB8 flash.
T Mo is not the brightest tools in the shed, it takes 5 visits to their T Mo offices to get the accounts and products purchased + refunds for items payed in cash or freebies refunded etc etc etc.....

G Pro 2 bootloops when trying to connect to any data service

Last night, I was trying to play a 1080p, 60 fps video while connected to data (HSPA), and suddenly my phone died (with 80% battery) and entered into a neverending bootloop.
After I came home, I tried Normal Flash via the LG Flash Tool, and I successfully got it to boot into the OS, only to have it bootloop again after unlocking the phone. Next I tried to CSE Flash which removes literally everything, and it bootlooped the first instance, after restarting again, it somehow managed to enter the login screen and I was able to navigate for a little bit.
After that, I deduced that the coast was clear and that it was safe to rebuild my apps and all, but after I tried to reconnect to our WiFi (I had sim and SD card out), it bootlooped again!
Now I'm on my 2nd CSE Flash to have it forget our WiFi network, and try to see if I can still use the phone functionality. If it can connect to a network and let me make calls/texts it's fine. However, has anyone experienced this before? How did you fix it? What was the problem? My initial deduction was that an application or something was causing the bootlooping, but after a fresh CSE Flash, I don't think that's the case. I also doubt it could be a battery problem, since this phone is barely over a year old (around 4 months over a year) and has not suffered any kind of heavy/extreme damage.
Right now I'm trying to revert it back to Lollipop, if that doesn't work, then I'll try KitKat and see what I get.
Literally, just started facing this issue. Did reverting to lollipop work.

SIM hacked/infected - reflashing does not remove it

Hello XDA.
Over the last three months, my phone has been regularly sending SMS's to a number in Singapore. Of course this is not something I have had anything to do with.
I have an LG G3 (D855) phone running Android 6.0_EU. My phone has been rebooting itself numerous times a day with the message that the SIM card was removed. It starts back up and usually works without a hitch. Checking my carriers log, I see that every reboot correlates to a sent text to Singapore at the exact time the phone was booting up again.
There is absolutely no evidence as far as I can tell that these messages are sent from my phone.
As I only just recently discovered this, I started investigating. I flashed my phone with a 6.0 KDZ from a thread on this forum, but it still rebooted afterwards and sends texts. I placed my SIM into my wifes D855, and it started experiencing the same issue. When we placed her SIM back into her phone, we could see that her phone number had ALSO started sending texts to Singapore.
We flashed her phone, put in a completely fresh SIM with an unused phone number, and that number started sending texts as well.
This leads me to thinking that there was a virus or malware on my own SIM and phone which then was tranferred to my wifes phone via my SIM and then from her phone onto the fresh SIM.
My question is this:
Has anyone ever heard of a malware/virus capable of replicating itself in such a degree that it exists on SIM cards and on the phone while it survives reflashing a stock ROM?
Also, is there any way to competely, and i mean completely wipe a phone so a bootkit is removed as well?
I hope there are some wise heads out there who has any idea regarding this.
According to Google there aren't really an precidences of what we are experiencing.
Infection has now been removed
Persistent memory can be a nuisance.
Confirmed infection has been removed by two days of inactivity on a fresh SIM-card by doing the following:
Rooted the phone using KingRoot and a guide here on XDA
Installed the custom Recovery TWRP
Installed the Lineage OS 7.1.1 custom Firmware
Through this, we can with a 95% certainty determine that the virus/malware resided in the recovery partition and the reflash of stock ROM did not flash the recovery partition.
In fear of being reinfected, I have not inserted an infected SIM into the new environment test test, whether or not it would be reinfected.
I hope this helps anyone who may experience this gnarly situation.

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