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Hi guys,
Earlier i found out that my sim card was the one responsible for the sudden reboots of my Xperia T. Does anybody know how to fix this? I am currently on stock JB 4.3 with locked boot loader.
Thanks for the help :laugh:
Hi there,
I would like to post my 2 cents here too, cause this is bug or whatever it is so annoying that I want to smash my Xperia against the wall.
It started shortly after I upgraded my Xperia T to 4.3 (.295). First I thought it is caused by wrong USIM placement, but even if I pull it out and follow the click to be sure it is placed properly, reboots appear from time to time. I was trying to track the source of this with "standard" steps like factory reset, installing apps and do settings without using Backup&Restore app, testing another USIM however without success, using phone with/without microSD card. I even upgraded to latest bugfixing .199 today but those damn reboots persists.
Maybe these observations will help to solve this issue:
- reboots appear usually after using apps using internet connection (mostly local news, gmail, Chrome etc) and, whats interesting, when screen is off
- mostly when on HSPA, not wi-fi
- when I play music, using PowerAmp, not tested on other mainly because I have no other installed
- sometimes after the call
- once or twice it happened when unlocking the phone
- reboots stops only if battery is totally drained or if I notice smell of the the burning flesh of my thigh and I put my screen on/or reinsert USIM.
I will observe more, but Im loosing patience
There were no reboots when on stock 4.1.2 with locked bootloader with root. I also had to turn off SIM card lock, because I need to be reachable. I like this phone, 4.3 is nicely done but this is driving me mad. I consider to downgrade and visit my local vendor, but beforehand I decided to ask community.
Sorry if this is discussed somewhere else here, I just spotted this post and added my POW. Thanks for your help
it may related to the battery
Sent from my Xperia T using xda app-developers app
daemin said:
Hi there,
I would like to post my 2 cents here too, cause this is bug or whatever it is so annoying that I want to smash my Xperia against the wall.
It started shortly after I upgraded my Xperia T to 4.3 (.295). First I thought it is caused by wrong USIM placement, but even if I pull it out and follow the click to be sure it is placed properly, reboots appear from time to time. I was trying to track the source of this with "standard" steps like factory reset, installing apps and do settings without using Backup&Restore app, testing another USIM however without success, using phone with/without microSD card. I even upgraded to latest bugfixing .199 today but those damn reboots persists.
Maybe these observations will help to solve this issue:
- reboots appear usually after using apps using internet connection (mostly local news, gmail, Chrome etc) and, whats interesting, when screen is off
- mostly when on HSPA, not wi-fi
- when I play music, using PowerAmp, not tested on other mainly because I have no other installed
- sometimes after the call
- once or twice it happened when unlocking the phone
- reboots stops only if battery is totally drained or if I notice smell of the the burning flesh of my thigh and I put my screen on/or reinsert USIM.
I will observe more, but Im loosing patience
There were no reboots when on stock 4.1.2 with locked bootloader with root. I also had to turn off SIM card lock, because I need to be reachable. I like this phone, 4.3 is nicely done but this is driving me mad. I consider to downgrade and visit my local vendor, but beforehand I decided to ask community.
Sorry if this is discussed somewhere else here, I just spotted this post and added my POW. Thanks for your help
Click to expand...
Click to collapse
mine was the opposite, reboots all the time when tethering unless I kept the phone on charge on stock 4.1.2. now on 4.3 and only had two reboots after heavy usage, but the phone wasn't on charge and was hot.
Looks like the reboots are caused by handover between 2G and 3G networks. I have set my T to stick on the 3G only and reboots have disappeared. Two days without single reboot
However I have found strange dots on the display recently, like some layer of the display is too thin and light is bit brighter in these parts, so I need to pay a visit to my vendor anyway.
Theme
Hello. I updated to 4.3 rooted ROM, and always restarted and I cant start the phone when is SIM in. Tried reinstall via CWM, nothing helped. And... yes.. maybe installed programs caused this boot loop, try install step by step program to program and succes. I found Woody theme. When I setup this theme, phone cant process Sim pin code section at start. Deleted theme helped me, and now work fine Darklord Rom
Well, I have finally isolated issue and it is not related to cellular handovers. Reboots are caused by faulty mechanism holding SIM card in place. Despite I hear and feel obvious "click" indicating SIM card is in place and mounted, it is not. After undefined time SIM card gets loosed and you can take it out very easily. Not sure if this is just me or it is a construction issue, but I saw too many posts regarding reboots. Time to check guts of your Xperia folks..
daemin said:
Well, I have finally isolated issue and it is not related to cellular handovers. Reboots are caused by faulty mechanism holding SIM card in place. Despite I hear and feel obvious "click" indicating SIM card is in place and mounted, it is not. After undefined time SIM card gets loosed and you can take it out very easily. Not sure if this is just me or it is a construction issue, but I saw too many posts regarding reboots. Time to check guts of your Xperia folks..
Click to expand...
Click to collapse
This reboot issue start happening to me just last night, no Wi-Fi no 3G, just using "UBreader" (reading a ebook, obviously ) before sleep... it reboots 3 times within an hour calling for "sim/usim card removed"... After third reboot, I open the card holder and removed SDcard, nothing happen, then I remove the sim card and did it again [the reboot] this time on porpuse, so... yeah, I think what @daemin says is true, the mechanism for holding sim card gets loose after a while... sad but true...
Maybe, when holding the phone, we press to hard on that side without noticing and that cause the problem, I don't know... but this morning I check at running apps and all or mostly all say 7 hours "running" so I think phone didn't reboot after I left it there for sleep... who knows...
I have 3 Xperia LT30 all running the same android 4.3, LT30_9.2.A.1.205. I use one, and my sister uses another. Anyway. it seems to restart alot. At first I thought it was my sister apps that keeps it restarting, as it doesn't happen to me. She even change SIM cards and remove the Micro SD card, but it still restarts randomly. recently, it happened to me as well, while using my Bluetooth stereo headphones, I notice it keeps restarting, as it continues to connect and disconnect my bluetooth.
I think it got something to do with the SIM card. it's like popping out and in the Micro SIM, which restarts it. It's like the phone keeps losing the SIM and then reads it.
How to fix this?
FYI, Same thing is happening on a 4.3 android Xperia SP.
Check your battery: it's the first and biggest problem of this device.
90% of people who were suffering from random reboots, have fixed by changing their battery...
Hello all,
I have had my unlocked H9493 Bordeaux Red XZ3 for about 6 months and it has worked fine on T-Mobile (Android 9, 52.0.A.3.202). Unfortunately, yesterday it randomly rebooted and after that it would no longer detect the SIM card and there is no wifi signal either; everything else on the phone works just fine. I keep getting the message "No SIM Card - No Service". I have rebooted several times with no luck. If I do leave it off for a while and turn it back on, sometimes I will get service & wifi for a little bit before the error starts all over again. If I leave the phone on with the error, it will reboot itself every few minutes.
I tried a different SIM card in the phone but still got the same issue. I put the original SIM card in another phone & it worked.
I scoured the web & found others having similar issues but none of their fixes worked (like using the *#*#... code and playing with the settings). I should mention that I did drop the phone a few hours before this started to happen but it was not that big a drop and I have a Ringke Fuxion-X case on it. There is no visual damage to the phone but perhaps I knocked the antennas loose ... ?
Before I do a factory reset, does anyone have any suggestions?
Thank you!
LePro69 said:
Hello all,
I have had my unlocked H9493 Bordeaux Red XZ3 for about 6 months and it has worked fine on T-Mobile (Android 9, 52.0.A.3.202). Unfortunately, yesterday it randomly rebooted and after that it would no longer detect the SIM card and there is no wifi signal either; everything else on the phone works just fine. I keep getting the message "No SIM Card - No Service". I have rebooted several times with no luck. If I do leave it off for a while and turn it back on, sometimes I will get service & wifi for a little bit before the error starts all over again. If I leave the phone on with the error, it will reboot itself every few minutes.
I tried a different SIM card in the phone but still got the same issue. I put the original SIM card in another phone & it worked.
I scoured the web & found others having similar issues but none of their fixes worked (like using the *#*#... code and playing with the settings). I should mention that I did drop the phone a few hours before this started to happen but it was not that big a drop and I have a Ringke Fuxion-X case on it. There is no visual damage to the phone but perhaps I knocked the antennas loose ... ?
Before I do a factory reset, does anyone have any suggestions?
Thank you!
Click to expand...
Click to collapse
Hi LePro69,
I am likely in the same situation as yours, I've just posted here:
https://forum.xda-developers.com/xperia-xz3/help/wifi-network-sim-card-reboots-efs-modem-t4014047
Did you have any luck at fixing your phone?
Nope
SonicKiller said:
Hi LePro69,
I am likely in the same situation as yours, I've just posted here:
https://forum.xda-developers.com/xperia-xz3/help/wifi-network-sim-card-reboots-efs-modem-t4014047
Did you have any luck at fixing your phone?
Click to expand...
Click to collapse
No, I gave up & switched to a Pixel 3 XL. Every now & then I turn on the XZ3 to see if it fixed itself & no luck so far.
Hope yours works.
Update
SonicKiller said:
Hi LePro69,
I am likely in the same situation as yours, I've just posted here:
https://forum.xda-developers.com/xperia-xz3/help/wifi-network-sim-card-reboots-efs-modem-t4014047
Did you have any luck at fixing your phone?
Click to expand...
Click to collapse
OK for funsies I turned on the XZ3 again after all this time & it is working. Going thru the setup process & so far the SIM or wifi has not disconnected so maybe it fixed itself after all these months?
LePro69 said:
OK for funsies I turned on the XZ3 again after all this time & it is working. Going thru the setup process & so far the SIM or wifi has not disconnected so maybe it fixed itself after all these months?
Click to expand...
Click to collapse
Maybe dirt in the sim slot?
I have the same issue. Took the phone to repairs and it got better for like 2 weeks and then again the signal began to drop randomly to the point where "sim card is not detected" is written on the screen. When I press on the backplate of the case near the camera (where coax antennae cable is supposed to be) the issue resolves itself for like half an hour and then repeats. The issue is 100% hardware because no firmware (stock, GSI, AOSP, even Sailfish) would affect how SIMs are becoming not detected.
ozamyatin said:
I have the same issue. Took the phone to repairs and it got better for like 2 weeks and then again the signal began to drop randomly to the point where "sim card is not detected" is written on the screen. When I press on the backplate of the case near the camera (where coax antennae cable is supposed to be) the issue resolves itself for like half an hour and then repeats. The issue is 100% hardware because no firmware (stock, GSI, AOSP, even Sailfish) would affect how SIMs are becoming not detected.
Click to expand...
Click to collapse
I would let it repair again.
In the SODP team I never heard about the problem, so I assume it must be a rare one.
Getting the phone fixed in service center is not the russian way of nailing it I just sticked a slim piece of plactic onto the back of sim and sd card holder in the sim slot bay to apply pressure on the back of sim card. No issues for a week so far, great and stable signal quality.
Hi guys since yesterday I have problems with my phone
the phone suddenly freezes over without being able to interact.
it restarts on its own but without ever starting the operating system in fact it shuts down and does not turn on again as if the phone had died.
the really strange thing is that the phone was fine Then suddenly he started making this mess.
Yesterday after so many hours of problems I managed to start the phone and now it works well but I am afraid that the situation will repeat itself.
the phone has the bootloader unlocked has root permissions, I followed the guides on this site.
But I have had this phone for two months now and these problems never occurred.
where can i start to understand what the problem is?
Mine suddently become all white, with the interface cut in half and moved up. i could do nothing. nor reboot nor shutdown.
after some minutes it turned back normal. i hope its color os bug and realme will fix it
It appears to be a firmware problem. We hope well.
Today did not give problems. This behavior is really strange, what can I install to understand the root of the problem?
I noticed that if the phone never goes into deep sleep mode the problem does not occur.
Now I am registering the log and as soon as the problem occurs again I go into detail to find out the real reason.
I'm trying to create an automatic script that is launched on the boot that practically never makes the phone sleep.
i'm really desperate the phone started to reboot itself.
I would like to try using a system log recorder but I realized that when I restart the phone these logs are not saved so it is impossible for me to verify the reason.
Can any of you help me out?
the phone freezes and then restarts.
Did you achieve any solution ?
No. I'm disperate.
Why don't you flash stock fw /recovery? Just to make sure it isn't an Hardware problem ?
I try but have this problem
https://forum.xda-developers.com/realme-x2-pro/help/bootloop-realme-x2-pro-rmx1931ex-t4089177
@westenlive
The problem appears only when you use data connection right?
If you try to switch off data and use wifi , you will not notice
The problem is because of the the operator, try another sim provider
Yes, in fact, that could be the problem because a few months ago removing the SIM card the phone did not give more problems
maybe you gave me the solution. I'll try
Ahmed Momtaz said:
@westenlive
The problem appears only when you use data connection right?
If you try to switch off data and use wifi , you will not notice
The problem is because of the the operator, try another sim provider
Click to expand...
Click to collapse
I am now testing the LINEAGE it happened to me this I removed the SIM card and I installed the costum Rom, I made the various customizations and the phone never locked OR restarted.
I inserted the SIM card in the phone worked perfectly, then having messed up with luckypatcher I had to reinstall the Rom.
So I performed the same procedure with the SIM card inserted in the phone and already at the first start it was unstable with reboots.
Currently I have applied for a change of sim card.
As soon as it arrives I will try to remove the sim card Install from scratch The system is to insert the new SIM card only so I can have the mathematical certainty that it is the SIM card
I hope my experience can help someone
This problem seems true, my X2 Pro also faced same issue when enabling cellular data. The phone sometimes loses the signal or the app freezes and perform a phone reboot. X2 Pro is a mid-range flagship phone, and yet this problem should be solved before they start to sell the phone.
Yes this device has many software problems but hardware problems of this kind are not acceptable.
Practically mine has become unusable, as soon as I turn it on after a few minutes of use it start closing the apps by itself.
Then after AN intende use of 30 minutes it start to restart.
This phone is truly incredible
Next time buy ONE PLUS
Hey. So I've the h8416 version of xz3, I updated to android 10 and have a host of issues.
I randomly get no SIM card and no service messages, up to about 30 times a day....this also disconnects the WiFi too.
As well as that I get random freezing and the phone reboots a number of times a day. Even when the phone isn't in use it happens.
Does anyone have any fixes or have solved these issues?
I've factory reset the phone to no avail and it keeps happening still.
Thanks.
I have a 8416 and running android 10 May 2020 build with no issues..
I know this is a bit late but... Back up all your data and all your phone, Install Xperia Companion and do a "Software Repair" ... this wipes the phone entirely and basically re-installs the SONY OS as it would be OOTB... Also back up your SD Card and once the phone has the new software on it.. wipe the SD Card in the phone and try it all again..
Good luck!!
mrandmrshemming said:
Hey. So I've the h8416 version of xz3, I updated to android 10 and have a host of issues.
I randomly get no SIM card and no service messages, up to about 30 times a day....this also disconnects the WiFi too.
As well as that I get random freezing and the phone reboots a number of times a day. Even when the phone isn't in use it happens.
Does anyone have any fixes or have solved these issues?
I've factory reset the phone to no avail and it keeps happening still.
Thanks.
Click to expand...
Click to collapse
https://forum.xda-developers.com/t/xz3-wifi-and-network-connection-problem.4242893/