Rebooting problem with SIM card. - XPERIA X8 Q&A, Help & Troubleshooting

When I insert a SIM card into my phone, it always reboots after it finds signal. So I could be in airplane mode, but when I disable it, the phone reboots just after it finds signal! This first happened on MiniCM7, then I tried GinderDX, but still the same! I have unlocked bootloader, Alfs v09a and GingerDX v028, if that matters...
PLEASE HELP ME

Flash stock kernel or another version of Alfs....on current rom
Sent from my E15 using Tapatalk 2

bandarigoda123 said:
Flash stock kernel or another version of Alfs....on current rom
Sent from my E15 using Tapatalk 2
Click to expand...
Click to collapse
I don't think that would help, because it worked perfectly even with custom kernel. I used the same ROM and kernel all the time, then suddently the SIM card rebooting problem appeared. The problem was there too with Alfs 08!

No one can help me?

Maybe its a problem with your sim card chip? It may have been corrupted or damaged. Go to a communications store and check..
Sent With My Fingernails To Your Eyeballs

Or just try using the sim card on another phone..
Sent With My Fingernails To Your Eyeballs

My SIM card is not damaged, it's the phones fault. What should I do?

Try downgrading to 2.1 all stock softwares will be restored then you can know wether it is hardware or software problem .. if it isn't solved then can be hardware problem with sim or sim slot...
Sent by the walking walkman..

You Sure?
velnens123 said:
My SIM card is not damaged, it's the phones fault. What should I do?
Click to expand...
Click to collapse
How are you sure the Sim isn't damaged.. It may well work in another phone, maybe just that the x8 is highlighting that there is an issue?
Your provider will supply you another sim for free so it's easy to get that verified..
Try another sim in your phone (x8) and you'll soon find out..

sidhart said:
Try downgrading to 2.1 all stock softwares will be restored then you can know wether it is hardware or software problem .. if it isn't solved then can be hardware problem with sim or sim slot...
Sent by the walking walkman..
Click to expand...
Click to collapse
Okey, will try it.
CtrlAltDelIrl said:
How are you sure the Sim isn't damaged.. It may well work in another phone, maybe just that the x8 is highlighting that there is an issue?
Your provider will supply you another sim for free so it's easy to get that verified..
Try another sim in your phone (x8) and you'll soon find out..
Click to expand...
Click to collapse
Another SIM card doesn't work too in my X8, so that's not a SIM card problem.

half solved
velnens123 said:
When I insert a SIM card into my phone, it always reboots after it finds signal. So I could be in airplane mode, but when I disable it, the phone reboots just after it finds signal! This first happened on MiniCM7, then I tried GinderDX, but still the same! I have unlocked bootloader, Alfs v09a and GingerDX v028, if that matters...
PLEASE HELP ME
Click to expand...
Click to collapse
I have the same problem.
insert your sim then press the power button
wait until bootanimation appears nd connect your charger to x8 when bootanimation is running.
your phone will boot safely but remember when ever you plug out your charger it will reboot again.
I'll tell you full solution.
wait for few days.
sorry for my bad eNgLIsH

Husan Rall said:
I have the same problem.
insert your sim then press the power button
wait until bootanimation appears nd connect your charger to x8 when bootanimation is running.
your phone will boot safely but remember when ever you plug out your charger it will reboot again.
I'll tell you full solution.
wait for few days.
sorry for my bad eNgLIsH
Click to expand...
Click to collapse
it also hapens to me, what is the solution? phone is working only pluged in with a charger

The same problem
I have the same problem Anyone have solution for that?

Same issue here. Anyone?
I don't think this is caused by my SIM card. It happens with other SIM cards too and my SIM works fine on another phone.
It does not seem to be software either because the problem still happening after flashing the stock rom with SE PC Companion.
I even bought another Xperia with the screen damaged and tried to replace the full main board but the problem still happening. After this, I tried to replace only the screen on the other phone to see if it would work, but it didn't!
Now I don't know if I bought a damaged phone with the same problem as mine or if this problem is caused by my LCD screen (that is the only part that the phones shared).
Mine is E15a with unlocked bootloader. I flashed SEMC Debrand Engine around a week before the problem happens.
The other X8 is also E15a, but it does not have unlocked bootloader (capital R) and arrived with stock ROM and full reset, so I do not know it it was "custom flashed" before.
F** weird problem!

FernandoNaka said:
Same issue here. Anyone?
I don't think this is caused by my SIM card. It happens with other SIM cards too and my SIM works fine on another phone.
It does not seem to be software either because the problem still happening after flashing the stock rom with SE PC Companion.
I even bought another Xperia with the screen damaged and tried to replace the full main board but the problem still happening. After this, I tried to replace only the screen on the other phone to see if it would work, but it didn't!
Now I don't know if I bought a damaged phone with the same problem as mine or if this problem is caused by my LCD screen (that is the only part that the phones shared).
Mine is E15a with unlocked bootloader. I flashed SEMC Debrand Engine around a week before the problem happens.
The other X8 is also E15a, but it does not have unlocked bootloader (capital R) and arrived with stock ROM and full reset, so I do not know it it was "custom flashed" before.
F** weird problem!
Click to expand...
Click to collapse
Unlocking bootloader is restoring the sim-lock state. I'm not too sure about that. But I hope your phone is locked back :/
Sent from my X8 using Tapatalk 2

FernandoNaka said:
Same issue here. Anyone?
I don't think this is caused by my SIM card. It happens with other SIM cards too and my SIM works fine on another phone.
It does not seem to be software either because the problem still happening after flashing the stock rom with SE PC Companion.
I even bought another Xperia with the screen damaged and tried to replace the full main board but the problem still happening. After this, I tried to replace only the screen on the other phone to see if it would work, but it didn't!
Now I don't know if I bought a damaged phone with the same problem as mine or if this problem is caused by my LCD screen (that is the only part that the phones shared).
Mine is E15a with unlocked bootloader. I flashed SEMC Debrand Engine around a week before the problem happens.
The other X8 is also E15a, but it does not have unlocked bootloader (capital R) and arrived with stock ROM and full reset, so I do not know it it was "custom flashed" before.
F** weird problem!
Click to expand...
Click to collapse
If you can flash custom kernel then it's unlocked.

WrongType said:
If you can flash custom kernel then it's unlocked.
Click to expand...
Click to collapse
Yes, my X8's bootloader is unlocked. I've bought a X8 without LCD to replace my main board and this new X8'bootloader is not unlocked.
And to give you some update, I've just found out what was the problem!
The problem was with the battery. Since I replaced it, I have had NO PROBLEM AT ALL anymore!
When I wrote the last post, I forgot that the battery was also the same in both phones (just like the screen that is from my first X8).
I will try to follow this tutorial to see if can make my phone work with the old battery, but I am not very confident that it will work.
Anyway, I'll let you know if I have some news...

Related

No sim card problem

Hi i did a search for the problem but none of the other threads with this title matched my problem.
I'm hoping someone can help i rooted and unlocked the bootloader on my x8 and put on ginger DX about 2 months ago and it's been working great.
just for info I didn't flash any custom kernel
So to my problem i tried to send a text message earlier tonight and i wouldn't send. my phone appeared to have no signal. I moved about in the house trying to get a signal no joy. So i rebooted my phone when it came back on it said there was no sim card!
Thinking something had gone wrong with the rom I tried a full wipe through xrecovery to no avail so i then did a repair with PCC.
However my phone still says No sim card
anyone know of any other steps i can take to fix my phone?
if it's beyond me fixing it I'm with O2 and have insurance will they be able to tell that i rooted and unlocked the bootloader and is that likely to invalidate my insurance??
Thanks in advance
IAmNice said:
Abot the insurance if you relock bootloader and unroot phone you will be fine. About the sim card ive no idea and this thread belongs in q and a
Sent from my E15i using xda app-developers app
Click to expand...
Click to collapse
whoops you're right i posted in the wrong part of the forum. thanks for your reply anyway
can any mods reading this move it for me?
Try disable your PIN
Sorry for my bad english
Sent from my E15i using xda premium
Front-Line said:
Try disable your PIN
Sorry for my bad english
Sent from my E15i using xda premium
Click to expand...
Click to collapse
the PIN was never enabled.
going back to the previous reply wouldn't doing a repair with PCC relock my bootloader?
FIX
I had the same problem. did you use this guide HERE?
If not do the whole guide following his instructions.
or
If you did go to the bottom of the first post and look at common issues. One of them is sim is not recognised. All you have to do is use the other unlock tool.
You will have it fixed in no time!
Please thank me if you appreciate my effort to try and fix this problem.
baddaman54 said:
I had the same problem. did you use this guide HERE?
If not do the whole guide following his instructions.
or
If you did go to the bottom of the first post and look at common issues. One of them is sim is not recognised. All you have to do is use the other unlock tool.
You will have it fixed in no time!
Please thank me if you appreciate my effort to try and fix this problem.
Click to expand...
Click to collapse
I wasn't trying to re unlock my bootloader i just wanted my sim to be recognised, but if i reunlock it is it likely to be recognised?
I didn't use this guide when i originally unlocked my bootloader i used x8toolbox
Have you tried inserting the sim to other fone and see if it works? or try using different sim and see if the fone recognize it.
Im guessing your sim card was damage.
deedii said:
Have you tried inserting the sim to other fone and see if it works? or try using different sim and see if the fone recognize it.
Im guessing your sim card was damage.
Click to expand...
Click to collapse
Just tried that just before i turned the computer on and i was just thinking the same thing then i saw your reply
now just need to unroot the phone and lock the bootloader before i ring O2
Thanks for everyone's replies and i'll try to put my threads in the right forum next time
You did not unlock the bootloader properly. There was a bug. if sim is working before and not working afterward. Baddaman54 is right. you need to follow the guide and troubleshooters notes. Even though this has been solved I will make this post so that if someone comes here with the same problem they can see all solutions.
gidefide said:
You did not unlock the bootloader properly. There was a bug. if sim is working before and not working afterward. Baddaman54 is right. you need to follow the guide and troubleshooters notes. Even though this has been solved I will make this post so that if someone comes here with the same problem they can see all solutions.
Click to expand...
Click to collapse
I didn't follow that guide at all, as posted earlier i used x8toolbox and i ran the s1 tool which seemed to indicate it was unlocked fine
But i did it about 2 months ago. The phone and sim's been ok all this time running GingerDX with stock kernel.
it appears the sim is damaged not sure how it happened though.

[Q] SIM stopped working in my LG Optimus 4X HD

I'm new to this.
A totally random event. I restarted my phone one evening last week and it show no sim. Using the LG support tool I had multiple failed attempts to update the software. Then as sudden a the sim registration had disappeared it came back to life. All fine until again the phone just stopped registering the sim.
Phone is secondhand. And I have tried numerous times removing, cleaning and replacing the SIM. Tried another active SIM on the same network with no luck.
I've never had a 'bricked' phone so don't know what to expect but I imagine the phone wouldn't even boot up!
I have now rooted the phone and installed CWM recovery, still no joy and have in desperation performed a hard reset. Nada!
Software is V10h. I read something about EFS folder to backup but all I could find is a text file. The IMEI is not registering on the phone. It could be a very simple answer but currently I'm stumped. I have requested a replacement SIM but have little hope this will resolve the issue.
I hope someone has an answer...
mvz3k said:
I'm new to this.
A totally random event. I restarted my phone one evening last week and it show no sim. Using the LG support tool I had multiple failed attempts to update the software. Then as sudden a the sim registration had disappeared it came back to life. All fine until again the phone just stopped registering the sim.
Phone is secondhand. And I have tried numerous times removing, cleaning and replacing the SIM. Tried another active SIM on the same network with no luck.
I've never had a 'bricked' phone so don't know what to expect but I imagine the phone wouldn't even boot up!
I have now rooted the phone and installed CWM recovery, still no joy and have in desperation performed a hard reset. Nada!
Software is V10h. I read something about EFS folder to backup but all I could find is a text file. The IMEI is not registering on the phone. It could be a very simple answer but currently I'm stumped. I have requested a replacement SIM but have little hope this will resolve the issue.
I hope someone has an answer...
Click to expand...
Click to collapse
re-flash 10h or 20a kdz. look for various tutorials on the forum. (btw, your phone isnt registring on network cuz your imei isnt being read, probably due to failed upgrade process
(or some other bug). it should be fixable though)
also, replacement sim wont help. its your cell phone that's faulty, either hardware or software, not the SIM itself
also, i'm not sure how it goes if your IMEI is blacklisted by your cell phone company - is it possible the phone was stolen? perhaps the original owner reported it stolen to his carrier and they blocked the IMEI?
Flying_Bear said:
also, i'm not sure how it goes if your IMEI is blacklisted by your cell phone company - is it possible the phone was stolen? perhaps the original owner reported it stolen to his carrier and they blocked the IMEI?
Click to expand...
Click to collapse
If the IMEI is blacklisted, the phone will still show it correctly in the settings and the carrier will just block based on this. This is why changing an IMEI is illegal in most countries and why discussions on how to change it aren't allowed on XDA as it can get the site in serious trouble.
mvz3k said:
I'm new to this.
A totally random event. I restarted my phone one evening last week and it show no sim. Using the LG support tool I had multiple failed attempts to update the software. Then as sudden a the sim registration had disappeared it came back to life. All fine until again the phone just stopped registering the sim.
Phone is secondhand. And I have tried numerous times removing, cleaning and replacing the SIM. Tried another active SIM on the same network with no luck.
I've never had a 'bricked' phone so don't know what to expect but I imagine the phone wouldn't even boot up!
I have now rooted the phone and installed CWM recovery, still no joy and have in desperation performed a hard reset. Nada!
Software is V10h. I read something about EFS folder to backup but all I could find is a text file. The IMEI is not registering on the phone. It could be a very simple answer but currently I'm stumped. I have requested a replacement SIM but have little hope this will resolve the issue.
I hope someone has an answer...
Click to expand...
Click to collapse
check if ur gapps are fine. reinstall all gapps. maybe u deleted some app that u shouldnt. happened to me too 2 weeks ago and i had no sim so signal , i couldnt see my imei, etc. if that doesnt help , then reinstall ur rom or install a custom one. I mean maybe u must be sure to check if u deleted some system app that u shouldnt. Since u have double checked with other sim , if its not from an app , then the above thread is right, the owner could have reported the phone stolen
kessaras said:
if its not from an app , then the above thread is right, the owner could have reported the phone stolen
Click to expand...
Click to collapse
I have had this phone since June and this only happened last week.
Flying_Bear said:
re-flash 10h or 20a kdz. look for various tutorials on the forum. (btw, your phone isnt registring on network cuz your imei isnt being read, probably due to failed upgrade process
(or some other bug). it should be fixable though)
also, replacement sim wont help. its your cell phone that's faulty, either hardware or software, not the SIM itself
also, i'm not sure how it goes if your IMEI is blacklisted by your cell phone company - is it possible the phone was stolen? perhaps the original owner reported it stolen to his carrier and they blocked the IMEI?
Click to expand...
Click to collapse
Okay, strange happenings with this phone. I've not hd the opportunity to re-flash as suggested but by the by I put my SIM back in and it worked fine. IMEI registered in the phone settings and all was as it should be. Until again first the signal disappeared and when I restarted the SIM did not register. Has anyone experienced this before?
mvz3k said:
Okay, strange happenings with this phone. I've not hd the opportunity to re-flash as suggested but by the by I put my SIM back in and it worked fine. IMEI registered in the phone settings and all was as it should be. Until again first the signal disappeared and when I restarted the SIM did not register. Has anyone experienced this before?
Click to expand...
Click to collapse
There have been some problems with this, but normally due the the RIL on CyanogenMod-based ROMs. I would suggest that you find the time to either reflash v10h or upgrade to v20A/B/C (as appropriate for your region) and see if that fixes it for you.
you still havent mentioned anything about gapps. this means you checked and you are sure that they are fine ??
So I have tried flashing software V20A using the LG software updater and now all I get is the phone booting into 'S/W Upgrade please wait while upgrading'
I can get into any other screen, despite pressing all combination of buttons together.
I have attempted reflashing back to V10H and try and get it back to how I had the phone. No luck there
And also tried again with V20A. No joy.
Is there anything else I could try?
mvz3k said:
So I have tried flashing software V20A using the LG software updater and now all I get is the phone booting into 'S/W Upgrade please wait while upgrading'
I can get into any other screen, despite pressing all combination of buttons together.
I have attempted reflashing back to V10H and try and get it back to how I had the phone. No luck there
And also tried again with V20A. No joy.
Is there anything else I could try?
Click to expand...
Click to collapse
Yes, Follow the instructions to flash a v20x KDZ EXACTLY and look at your drivers.
SimonTS said:
Yes, Follow the instructions to flash a v20x KDZ EXACTLY and look at your drivers.
Click to expand...
Click to collapse
Which version of instructions is definitive? I've tried multiple methods with battery in and out. Are you referring to the LG drivers?
Thanks for responding.
mvz3k said:
Which version of instructions is definitive? I've tried multiple methods with battery in and out. Are you referring to the LG drivers?
Click to expand...
Click to collapse
I have always found this thread [TUTORIAL]Update firmware through flashing the kdz files( With Picture )Step by Step works perfectly every time.
Got the same problem here, running cm for a month with no probs, restarted phone and sim not recognized. Installed a backup of the original rom and everything ok. Reflashed kdz's and did a fresh install of cm and still no sim. Am now on Zaiben which is ok but takes about 15 mins to recognize sim?
fastpottsy said:
Got the same problem here, running cm for a month with no probs, restarted phone and sim not recognized. Installed a backup of the original rom and everything ok. Reflashed kdz's and did a fresh install of cm and still no sim. Am now on Zaiben which is ok but takes about 15 mins to recognize sim?
Click to expand...
Click to collapse
Hello, did you solved this issue?
I´m struggling with it now.
ssefrgr said:
Hello, did you solved this issue?
I´m struggling with it now.
Click to expand...
Click to collapse
hi, sorry but no, i think it was probably hardware related as it would no longer allow me to flash kdz's.
good luck.
fastpottsy said:
hi, sorry but no, i think it was probably hardware related as it would no longer allow me to flash kdz's.
good luck.
Click to expand...
Click to collapse
Hi again. I ordered one of these. Lets test it. Last resort
http://forum.xda-developers.com/showthread.php?t=2780274&page=165

[Q] SIM-card(s) not readable

I've got a more or less big problem. My Xperia SP cannot recognize, that my SIM-card is inserted. If I turn it on it doesn't ask for the PIN and furthermore I can't receive or send SMS's, I can't receive calls or call somebody and I haven't got mobile data. I tried to insert my SIM-card in another sony phone and it didn't work. I also put another working SIM-card in my phone and it also couldn't recognize it. I think (I'm actually sure) it's caused by the non-functional phone apk, but maybe also the SIM-card is broken.
What shall I do? I have a TWRP backup, but I'm not 100% sure, whether it is from before or after. What is a less- or non-risky possibility to replace the phone.apkor is there a better method to repair the phone?
edit: I found out, if my phone is turned on and I remove the SIM-card, it realizes it, and reboots.
Please help me!
???
Sorry, but why is my post ticked with a hook??? The problem isn't solved yet!
Get a new sim card.. This will fix most simcard issues
mrjraider said:
Get a new sim card.. This will fix most simcard issues
Click to expand...
Click to collapse
First of All thanks for your reply. But I already took another SIM-card (which on Xperia L works fine) and put it into my device but there were the same problems. Yesterday I downloaded the SemcPhone.apk file, pushed it to /system/app and changed permissions to rw-r--r-- and rebooted. Then it asked for the PIN but after unlocking I got a bunch of Force closes and they didn't stop.. Even after rebooting again I had the problem, so I deleted the apk file again. But it's now the same like I described there above :/
Reflash ROM.. You have phone.apk problems aswell so this should fix it
Okay.. And the stock ROM, is this the "Deodexed stock ROM" (777MB) from android development or the "normal" stock ROM (odexed) (12.0.A.2.245) also from android development section?
No, to prevent any issues just open Sony Update Service (can be downloaded from the Sony website) and "restore" your phone..
So go back to full stock
Okay cool thank you I'll try it
Schokonuss said:
Okay cool thank you I'll try it
Click to expand...
Click to collapse
The last version of Sony Update Service misses the XSP.
I have contacted Sony Mobile to point this out. Untill we recieve a new update you need to use the PC Companion to restore your phone or you need to use Flashtool
mrjraider said:
The last version of Sony Update Service misses the XSP.
I have contacted Sony Mobile to point this out. Untill we recieve a new update you need to use the PC Companion to restore your phone or you need to use Flashtool
Click to expand...
Click to collapse
Okay, then I'll do that
:/
I tried it with PC Companion but when it had to start repairing and it booted the phone into flashmode (I think so, because the LED was green) and then PC Companion said: "The phone contains modified software, which cannot be updated" and below "Error 2003" ..
I tried it 2 times and both the same :/
My phone has unlocked bootloader, is rooted, and has the DoomKernel, no custom rom.
Schokonuss said:
I tried it with PC Companion but when it had to start repairing and it booted the phone into flashmode (I think so, because the LED was green) and then PC Companion said: "The phone contains modified software, which cannot be updated" and below "Error 2003" ..
I tried it 2 times and both the same :/
My phone has unlocked bootloader, is rooted, and has the DoomKernel, no custom rom.
Click to expand...
Click to collapse
Well that is unfortunate. You need to relock bootloader and reflash with flashtool.
You cannot use Sony software with unlocked bootloader
Sent from my C5303 using Tapatalk
Oh! That's actually bad. But then I first have to flash back the stock kernel, then relock bootloader, repair with PC Companion and eventually unlock Bootloader again if necessary for me, right? Just for being sure.
Yes correct you need stock kernel then lock bootloader,then re flash/repair phone
Sent from my C5303 using Tapatalk
Ok good. Now the last question: from where can I get the right stock kernel? I found a post from DoomLoRD, where he wrote, that you have to flash stock kernel.sin and no FTF kernel but I couldn't find a stock kernel.sin and in another post from alivanov79, alivanov79 posted a link to an FTF kernel. So Do you know which one is the right one?
Schokonuss said:
Ok good. Now the last question: from where I can get the right stock kernel? I found a post from DoomLoRD, where he wrote, that you have to flash stock kernel.sin and no FTF kernel but I couldn't find a stock kernel.sin and in another post from alivanov79, alivanov79 posted a link to an FTF kernel. So Do you know which one is the right one?
Click to expand...
Click to collapse
Hello! I hope you're still alive!
I am facing the same problem, but before I start doing stuff, may I know if your problem has been solved?
My Xperia SP as well on occassion doesn't detected sim card. Sometimes when I need to make phone calls the most, it starts to do it. I am planning to send it for warranty, as I am having another 20 days before the warranty expires.
Surprisingly, many Sony Xperia models users have experience of having a phone that doesn't read SIM cards. Google reveals it all.
TechnoSparks said:
Hello! I hope you're still alive!
I am facing the same problem, but before I start doing stuff, may I know if your problem has been solved?
My Xperia SP as well on occassion doesn't detected sim card. Sometimes when I need to make phone calls the most, it starts to do it. I am planning to send it for warranty, as I am having another 20 days before the warranty expires.
Surprisingly, many Sony Xperia models users have experience of having a phone that doesn't read SIM cards. Google reveals it all.
Click to expand...
Click to collapse
Hey,
yeah, I'm still alive
So, the thing is, my problem there had been caused by myself, fiddling around with some root stuff, so it hadn't been my phone's fault.
But what I did is I just flashed another ROM because I didn't see another solution and it really drove me crazy not being able to use the SIM card related functions.
Well, keeping your post in mind I don't think you'd like to flash another ROM (I probably shouldn't have done that, too).
So if you didn't already try to repair your phone with PC Companion, that'd be the first thing, I'd do in your case.
Otherwise I'd send it for warranty as you considered it already.
Yeah, my sister's Xperia L also has that problem and that's really unfortunate.
So I hope, my "advide" could help at least a bit although there may not be plenty of hints, but yeah.
If I shocked you with that essay I'm sorry, too
Schokonuss said:
Hey,
yeah, I'm still alive
So, the thing is, my problem there had been caused by myself, fiddling around with some root stuff, so it hadn't been my phone's fault.
But what I did is I just flashed another ROM because I didn't see another solution and it really drove me crazy not being able to use the SIM card related functions.
Well, keeping your post in mind I don't think you'd like to flash another ROM (I probably shouldn't have done that, too).
So if you didn't already try to repair your phone with PC Companion, that'd be the first thing, I'd do in your case.
Otherwise I'd send it for warranty as you considered it already.
Yeah, my sister's Xperia L also has that problem and that's really unfortunate.
So I hope, my "advide" could help at least a bit although there may not be plenty of hints, but yeah.
If I shocked you with that essay I'm sorry, too
Click to expand...
Click to collapse
Lol I don't think ROM flashing is the root problem, as I have been using CM11 for a month (and maybe more). The problem starts appearing lately..
I will flash stock ROM and relock bootloader and then reflash stock via PCC to see if it will fix the problem
Anyway thanks for the reply!
No, that's not even something to be called "essay"....

Xperia Z continous reboot loop

http://www.youtube.com/watch?v=RKjDP9ZvusE
I have this problem.. My Xperia Z continue to reboot after few seconds from start.. I Already tried PC Companion, SUS, FlashTool with stock and Nothing continue to reboot ... Please someone help me.. If there's no solution .. I can bring it to service? I flashed a ROM and unlocked the bootloader, but having reflashed the Stock original and the bootloader Relocked I can use my warranty? PC Companion recognized the phone as original
Maybe I flashed the wrong stock? Can someone tell me, the right stock for my c6603?
need help please!
What if you connect your phone with the charger? does it reboot?
gripfly said:
What if you connect your phone with the charger? does it reboot?
Click to expand...
Click to collapse
Yep!
freno25 said:
Yep!
Click to expand...
Click to collapse
Ok, the battery isn't it I think.
How do you flash and what do you flash?
Please write it down step by step.
gripfly said:
Ok, the battery isn't it I think.
How do you flash and what do you flash?
Please write it down step by step.
Click to expand...
Click to collapse
Ok, first of all when I buy the phone Xperia Z (C6603/L36h) it work good, but after few days don't recognize the sim card for good.. I don't know if it mean somethings or if because I cut my sim to microsim but I does for good.. After some reboot it rework without ploblems. So it was a temporary problem (30 mins).. Ok second, I unlocked my bootloader and then I flash this ROM -> PAC-ROM http://forum.xda-developers.com/showthread.php?t=2208249 this version -> http://forum.xda-developers.com/devdb/project/dl/?id=1774 and then the gapps. All work fine because I does with other phones, after few days the phone start to reboot loop, but after some reboot it end after an hour like.. but start to recognize the sim and not, like he want.. like a mad.. after 1 days start to reboot loop like the video so after bootanimation the phone stay on, but after 30 secs reboot and again and again, I stopped this with POWER+VOL UP. I try to flash these stock because I don't know which use:
1) C6603_10.1.1.A.1.253_GLOBAL_unbranded_LTE -> After This I Try PC COMPANION (So I have to relock the booloader) but nothing SUS too
2) C6603_10.1.A.1.434_UK unbranded -> This won't work like the video so it start and black screen, the app system crash
3) C6603_10.3.1.A.0.244_Generic CE
4) C6603_10.3.1.A.0.244_Generic_DE
5) C6603_10.3.1.A.2.67_Generic UK
Ok. And now tell me exactly how do you flash with FlashTool.
gripfly said:
Ok. And now tell me exactly how do you flash with FlashTool.
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Click to collapse
With the lastest version of flashtool .. by pressing the first button "Flash device" and on the next windows "Flashmode" .. I select the firware and check all wipe.. the rest of checkbox unchecked .. Then "Flash" and when the programm ask to me put the device with the usb and vol down I does and done.
can u tell how to know the original firmware? On the box of the phone say: "SI 1270-6876.6 PL" from this I can found the firmware?
freno25 said:
can u tell how to know the original firmware? On the box of the phone say: "SI 1270-6876.6 PL" from this I can found the firmware?
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Click to collapse
Yes but you do not need exactly this firmware. Every generic firmware is the same. So you can download generic sweden or generic uk or whatever.
Edit: i think it is a hardware problem. Because you wipe all datas, made a clean flash and that more than once. But wait a bit, maybe a person which had the same prob can say it you. Or go and read a bit in the pac thread.
gripfly said:
Yes but you do not need exactly this firmware. Every generic firmware is the same. So you can download generic sweden or generic uk or whatever.
Edit: i think it is a hardware problem. Because you wipe all datas, made a clean flash and that more than once. But wait a bit, maybe a person which had the same prob can say it you. Or go and read a bit in the pac thread.
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Click to collapse
Yep it is very likely a hardware problem.
As this does not happen to other users.
Rather send your Z™ in repair.
Sent from my white Xperia™Z
Tommy-Geenexus said:
Yep it is very likely a hardware problem.
As this does not happen to other users.
Rather send your Z™ in repair.
Sent from my white Xperia™Z
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Click to collapse
After 1 days of researching Thanks to my SI I found the real original firmware and by another guide I downloaded the firmware by pc companion.. So now the problem is just one.. My sim card if I don't put the sim reboot because still searching, if I put a sim don't recoinize it and say "insert the rim and reboot" but ask me the pin of sim O.O, but if I turn THE FLIGHT MODE don't reboot and the sim work, like I can Import my contacts etc.. so the sim work too, the phone too , what's the problem then? O.O
up
Same issue with me. 1st, no sim error. After few days, its start to shutdown itself. But still can on. After that stuck at sony logo. Maybe radio related issue because it wont shut itself in recovery cwm nor twrp. But if I booting as usual, after several second it shutdown. Btw, production week 13W13
Sent from my R800i using xda app-developers app
My problem solved by changing new battery!!
Sent from my C6603 using xda app-developers app

Zony Z1 C6902 No signal

Hey guys. I got this problem:
One day in the morning the cellphone lost signal and never got it back. As i believed it was a software issue (coz the cellphone was on and suddenly signal dissapeared) i tried to flash a ROM and do a lot of stuff. In Venezuela we have no Sony Center. At the end my cellphone finished with CM11 and no IMEI. If u have any solution for this, I'll be really grateful. Thanks in advance for ur time.
Try wiping all data and flashing a full FTF using flashtool, if that doesnt work,then im afraid u r gonna have to get a new phone:good:
How many roms have you flashed anyway?
Provide some more detailed info about how and when this happened.does the phone detect the sim card?
Does the stock sony rom by any chance go on a reboot loop when starting ,because that happened to me when my old xperia z's baseband died:angel:
Good Luck,I hope you fix your phone quickly
masterofnocrack said:
Try wiping all data and flashing a full FTF using flashtool, if that doesnt work,then im afraid u r gonna have to get a new phone:good:
How many roms have you flashed anyway?
Provide some more detailed info about how and when this happened.does the phone detect the sim card?
Does the stock sony rom by any chance go on a reboot loop when starting ,because that happened to me when my old xperia z's baseband died:angel:
Good Luck,I hope you fix your phone quickly
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Click to collapse
Thanks for writting. It started suddenly, i though it was an update. I've flashed like 4 ROMS (dont remember which ones tho). The cellphone detects SIM Card but cant register to any network. When I installed other ROMS it got on a reboot loop. I also think maybe i have to get a new phone and use this one as a mini tablet. Once again, thanks for leaving an answer
edbk201 said:
Thanks for writting. It started suddenly, i though it was an update. I've flashed like 4 ROMS (dont remember which ones tho). The cellphone detects SIM Card but cant register to any network. When I installed other ROMS it got on a reboot loop. I also think maybe i have to get a new phone and use this one as a mini tablet. Once again, thanks for leaving an answer
Click to expand...
Click to collapse
Yeah,you are gonna have to get a new phone,
This is the same thing that happened to my old Z
masterofnocrack said:
Yeah,you are gonna have to get a new phone,
This is the same thing that happened to my old Z
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Click to collapse
Thanks for answering. Bad news tho
Flash full FTF of .757
That should help....I have this before...

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