Strange and significant reset and camera problems after latest update - T-Mobile Samsung Galaxy S7 Questions & Answers

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.....

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

[Q] No SIM card - Emergency calls only

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

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

Pixel 4a No SIM card detected

So, every since I have updated my pixel 4a to the August security patch, it starts giving me an issue with my SIM, it seems to not detect my SIM at random points of the day and I sometimes have to restart it multiple times to get it to detect again. After it gets detected, it will work fine for about 12 - 15 hours before the issue comes back again. When the issue occurs, my mobile network option in the settings will get greyed out. (see attachment below)
Went to my carrier and get a new SIM. Still, the issue persists. Even tried an E-SIM and it still doesn't work
I have contacted Google support and they told me to send my device down for repair and inspection however, even after repairing my device, the issue still persists. Factory reset does not fix it as well. Dig thru Reddit and Google forum as well, tons of others are facing the same exact issue after the August update leading me to deduce that this is not a hardware but a software issue with the update.
I saw that there was the September security update patch yesterday and I went to update it, however, the issue is still there
I then proceeded to contact Google support again and they kept telling me to send it for repair even though I already have?
Does anyone have a clue what to do?
Felixxxxx said:
So, every since I have updated my pixel 4a to the August security patch, it starts giving me an issue with my SIM, it seems to not detect my SIM at random points of the day and I sometimes have to restart it multiple times to get it to detect again.
Dig thru Reddit and Google forum as well, tons of others are facing the same exact issue after the August update leading me to deduce that this is not a hardware but a software issue with the update.
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If others are experiencing the same issue after the update, then that highly suggests the problem was caused by the update.
So, unfortunately, ONLY google can fix it with another patch and you will have to wait until google gets around to fixing it.
I have similar problem though I thought it's caused by android 12 beta so I outped out it and everything was fine for few days. I restated my phone after day or two and the problem of no serivce came back. This time even factory reset didn't help.
I can't manually change preffered network type to 2g/3g and everytime I try to make a phonecall it says i need to turn off aeroplane mode off.
Felixxxxx said:
So, every since I have updated my pixel 4a to the August security patch, it starts giving me an issue with my SIM, it seems to not detect my SIM at random points of the day and I sometimes have to restart it multiple times to get it to detect again. After it gets detected, it will work fine for about 12 - 15 hours before the issue comes back again. When the issue occurs, my mobile network option in the settings will get greyed out. (see attachment below)
Went to my carrier and get a new SIM. Still, the issue persists. Even tried an E-SIM and it still doesn't work
I have contacted Google support and they told me to send my device down for repair and inspection however, even after repairing my device, the issue still persists. Factory reset does not fix it as well. Dig thru Reddit and Google forum as well, tons of others are facing the same exact issue after the August update leading me to deduce that this is not a hardware but a software issue with the update.
I saw that there was the September security update patch yesterday and I went to update it, however, the issue is still there
I then proceeded to contact Google support again and they kept telling me to send it for repair even though I already have?
Does anyone have a clue what to do?
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Click to collapse
Wow, unfortunate for sure. Isn't it possible to roll back to just before the update? Of course google makes the entire firmware available and I believe I've read if you remove the '-w' at the end of the script it doesn't wipe data?
At least if this was possible it would certainly indicate if it was the update or not?
cheers
So my Pixel 4a updated to the October Security Patch this night, and from there on it says "SIM not detected".
But when I go in settings it shows the network name.
I tried switching the SIMs with my Pixel 2 and everything works there, but any SIM I put in my 4a shows "SIM not detected" even though it can detect the network.
Which it probably wouldn't do if the SIM slot were defective, right?
And the timing with the update is too much of a coincidence...
I have similar issue - Pixel 3A, after update with November Security Patch, "No simcard" error appears with mandatory reboot. Tried with different SIM, there was prompt for PIN, verified and then it seems no access to simcard data. Even "emergency call" is no allowed from now. Looks like additional privilidges needed for access SIM card. No clue, how to proceed...

Question Problems with Random Shutdowns and Inability to play certain games.

Hello. Rather new here. I have newly purchased a Red Magic 7 Pro from their Official Website. It hasn't even been 10 minutes since I got it before it started having problems like random shut down and reboots.
I've reached out to their support page now where they've told me to try updating the version of the phone. I've done both online updates and local updates, but neither method worked. I've thought about sending the phone back for a replacement if this continues, but I'd rather see if I can resolve the issue first before resorting to that
Mine is the global version and I've been told the update to download in the US and Asia update 3.14. The current version it's running is 3.12
I've considered rooting the device to see if I can do a true factory reset since their method of resetting it via the phone's settings and getting in its debug menu has done nothing. But it's still under warranty so if they give me the option to return it for a new one I will. Hopefully, if this is busted, it's only this particular phone.
When you got the the phone new did you transfer the data of your old phone?
Yea I was trying to transfer files at the time to my other android.
Pokemonaces said:
Yea I was trying to transfer files at the time to my other android.
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There was a bug in the beginning i've you transfer files the Cellar data will never connect and turn off on with cause the phone to overheat. But you got a different bug i see. you can only try to update the phone to 3.14 or factory reset without transfer the apps first and update then. Btw ask on Reddit there are more active people.
Reddit link: https://www.reddit.com/r/RedMagic/
Update link: https://help.redmagic.gg/hc/en-us/articles/6360319907865-REDMAGIC-7-Pro\
I've tried updating first before transferring, but I get the same errors on the images above.
Depending on how often it reboots, in some cases it gets stuck on gaming mode and I have to wipe the data via holding down the volume down and power button method.
Some other causes include missing apps as it keeps resetting. The common factors is that certain games fail to download and random reboots.
The reboots happen pretty frequently when I try to update using Wifi. Even if it does go through, I get the update package error or poor signals error even though I have a solid internet connection.
And thanks I'll check out the Reddit page for more solutions there
Pokemonaces said:
I've tried updating first before transferring, but I get the same errors on the images above.
Depending on how often it reboots, in some cases it gets stuck on gaming mode and I have to wipe the data via holding down the volume down and power button method.
Some other causes include missing apps as it keeps resetting. The common factors is that certain games fail to download and random reboots.
The reboots happen pretty frequently when I try to update using Wifi. Even if it does go through, I get the update package error or poor signals error even though I have a solid internet connection.
And thanks I'll check out the Reddit page for more solutions there
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Click to collapse
Hmm can you check your google play system update. There is a bug that hasn't been fixed it can't update so the phone will reboot twice.
The only options is to reflash the software or send it back for a replacement.

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