Sony Xperia C6603 auto reboot - Xperia Z Q&A, Help & Troubleshooting

I have a problem that my phone automatically reboots itself everytime my mobile data is on even when it's not overheated. My phone is using android 5.0.2 build number 10.6.A.0.454 (HK version), kernel 3.4.0-perf-g8fa3dae that comes with it, and it was rooted.
This problem only happens since I update to 4.4.4 or later versions. It never happened on 4.3 (originally installed on the phone).
Anyone got the same problem or any solution for this?

Did you try to wipe data/cache/dalvik?
did you try to fix permissions?
both with recovery

khoale1802 said:
I have a problem that my phone automatically reboots itself everytime my mobile data is on even when it's not overheated. My phone is using android 5.0.2 build number 10.6.A.0.454 (HK version), kernel 3.4.0-perf-g8fa3dae that comes with it, and it was rooted.
This problem only happens since I update to 4.4.4 or later versions. It never happened on 4.3 (originally installed on the phone).
Anyone got the same problem or any solution for this?
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I am having the same problem, it's rebooting it self only and one thing i measured which is actually strange that while it is under charging then it does not reboot itself so what should be the problem??
Help me to sort out this ASAP.

I had also that issue recently. After so much rom flashing i decided to try to replace the battery and it worked. Just try to replace battery may be that wil also work for you guyz.

Related

phone reboot by itself!!

I got mine from uk handtec and been use four days without any problem
but today it reboot two times alreday without any touch.
did anyone have that kind of iusse any suggestion?
I haven't root my phone and I updated to 534 firmware
paullu said:
I got mine from uk handtec and been use four days without any problem
but today it reboot two times alreday without any touch.
did anyone have that kind of iusse any suggestion?
I haven't root my phone and I updated to 534 firmware
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Click to collapse
you might need to do a factory reset then update the firmware again, I think the update to 534 didn't go too well... also happened to my samsung phones preiously after updating to latest firmware...
Morlock O said:
you might need to do a factory reset then update the firmware again, I think the update to 534 didn't go too well... also happened to my samsung phones preiously after updating to latest firmware...
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Click to collapse
I was just about to post about the same issue. Twice now when driving I have noticed that the phone suddenly reboots. It's sitting in a passive car holder (no power, NFC, bluetooth etc). But it's just in my line of sight so I quickly notice when it suddenly boots.
I have no idea if it does this the rest of the day or not as well. But this is not a good sign.
if resetting to factory setting then re-updating the firmware does not work, try to re-flash the stock firmware using FTF files...
http://forum.xda-developers.com/showthread.php?t=2459365
http://forum.xda-developers.com/showthread.php?t=2464389
this usually happens when there is some conflict with the firmware.. very common issue with all android phones...
I'd flash it with flashtool.
I did a "reflash" of the latest firmware using the PC companion software that came with the phone. Will report back in it helped or not.
I did a factory reset.hope will solve it

[Q] After installation of 2.257 GMS drop and loop boot problem

Hi there,
After I have updated my Xperia Z1 to 2.257 version. I ntoiced things have changed for better, no overheat etc. however my phone tend to lose GSM signals completely as well as go into a loop boot and then what I get is a lock screen and it does not ask me for SIMCARD password. Then the phone reboots itself again into the loop. I managed to get out of the situation last time by plug the USB cable into the laptop but it went ok. But now, it does not work anymore and I have done nothing to cause this issue as it does by all itself. Please advise if there is anything I can do to fix this issue or if it is a hardware problem. Thanks.
I have done the clean installation as suggested by Sony and now after two weeks, this loop booting issue is back again! I can not reinstall every 2 weeks! Can anyone help?:crying::crying::crying:
Try to flash clean 534 and use it for a day or two.
If you get same result - use your waranty and send phone back.
But if your phone work O.K on 534 firmware, try to update via OTA to 257.
Don't flash ftf, update via OTA without any wipe (of course)
If you are from Europe use Europe generic version of 534 and update via OTA to 257 but try first 534 and observe behavior.
Sent from my Z1

Random reboots

Hi. I hate this phone.
After three months since I got it, one day it turned off by itself and never turned on again. I sent it to customer care in the store where it came from, and they changed the battery. The moment I got home, the phone had the same problem. So I tried Sony PCC to repair it. It turned on, I installed some apps and suddendly it turned off again. I suspected it was because I deactivated bravia engine, but I'm not so sure that's the problem. Anyway, I decided to downgrade to Android 4.1 version .254 with root. Now the phone seems to be working. But sometimes it just reboots by itself. It happened once when I was scrolling Facebook, and twice when I was using Chrome. It just reboots and restars like nothing happened.
Is this a Ram problem? I can't put the latest firmware because the phone doesn't work AT ALL with it. What can I do?
Hi. Try to flash 254 fw with flashtool. It could help.
Flash the latest FTF via Flashtool
I have quite similar issue on my Xperia SP (random reboots). I have latest official rom installed via PCC.
Try switching off Stamina Mode and see if it keeps happening. It seems to work in my case.

Random Shutdowns and Reboots?

The other day, my friend gave me his old Xperia T as it had started to act up and eventually stopped turning on entirely. I took it home, downloaded a generic 4.3 ftf and flashed it. Although the phone now boots, it occasionally reboots or just flat out turns off (without warning - the screen just goes black and I have to turn it back on again). I have tried flashing a few different ftfs, and the problem still persists. Does anybody know how I can stop this and finally be able to abandon my Arc S for good?
hi dude i have the same problem but on xperia v, i installing a stock rom many times but the phone after 5 minuts reboot, i thought was the battery but it isnt. meaby the kernel modify i think, please let me now i u resolved this
alusan20raziel said:
hi dude i have the same problem but on xperia v, i installing a stock rom many times but the phone after 5 minuts reboot, i thought was the battery but it isnt. meaby the kernel modify i think, please let me now i u resolved this
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Click to collapse
I'm fairly certain my problem is just with the battery, as I've installed a 4.0.4 ftf,a 4.1.2 ftf and a 4.3 ftf and the problem is consistent on all of them. Once I've bought a new battery, I'll let you know if the problem still persists.
PluckyJokerhead said:
I'm fairly certain my problem is just with the battery, as I've installed a 4.0.4 ftf,a 4.1.2 ftf and a 4.3 ftf and the problem is consistent on all of them. Once I've bought a new battery, I'll let you know if the problem still persists.
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Click to collapse
i bought a new battery but the problem persist i hope u can resolve this with a new battery

Z3 Compact - How to ONLY update baseband (having "sim" loss issues)

Hy guys,
I'm facing some issues with my Z3C. I bought it 2 weeks ago, unlocked bootloader, installed twrp, flashed CyanogenMod 12.1 Nightly on day 3. Updated CM twice with OTA since then.
My problem is that the "sim" card (GSM/LTE) is randomly not noticed by my phone, like if its removed. I checked the sim tray, everything is stable and well seated, the sim is also OK, never had an issue with it. I just have it in my pocket or on the desk, pick it up to do something and there is already a No SIM icon on the status bar, and "Emergency calls only" If I lock the phone. Only a restart solves it.
I could not find any noticeable trigger which would lead me to the source of the problem. Sometimes its OK for 2 days sometimes it happens 2 times a day. The really frustrating part is that when the sim "disconnects" the phone starts to heat up significantly. I usually only notice it because my phone is burning my pocket. Also it looses around 20% battery before I notice it. After the restart everything is fine, the phone cools down.
Went to the Cyanogen forums for some possible solution for the problem, they suggested that I should try to update my baseband to the latest version, and if that still doesn't help, do a full wipe / clean install of CM nightly. I tried downloading the latest firmware using FlashTool and XperiFirm, creating an ftf, and flashing only AMSS_FSG, AMSS_FS1, AMSS_FS2 included into the flash ( I only wan't to flash the baseband ?!?).
My question would be: Anyone else had this problem and managed to fix it somehow? If not, anyone could please help me with a small guide how to ONLY update the baseband of my Z3C (D 5803) running CM 12.1 nightly on twrp recovery?
When I tried the flash above, my baseband version did not change. Currently I'm on "8974-AAAAANAZQ-00005-40" Baseband version, and I would like to move to the latest most stable one.
Thanks for the help in advance!
If it were my Z3c, I would flash back to stock completely and then reflash with Cyanogen. This is a device on which you have the freedom to do that, and that gets the job done safely. Backup your CM install, and then flash everything.

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