***attention*** downgrading to root - Sony Ericsson Xperia Neo, Pro

I had android version 2.3.4 (.238) and tried to downgrade to 2.3.2 so that I can root my phone and this caused the 0% battery problem( Neo shuts down automatically,it can't charge.)
I tried digging into the problem and it looks like now it is a hardware problem.
Other users have reported that the only solution they found was to change the mobo to a new one.
SO, WATCH OUT!!!!!!!!!!!!!!!!!!!!
ps: tried to flash to a bunch of other fw, nothing worked.tried recovery,nothing.
I tried almost every possible way I could find out there(web), and NOTHING, I repeat NOTHING worked. So be very careful if you want your Neo safe.

I'm lucky that don't have this problem, it can fix by unplug/replug the battery in my case, after OTA update.
But if the problem make it unable to boot up, I think can take the reference of the DEFY no battery issue.
http://forum.xda-developers.com/showthread.php?t=892026
NOT tested (it's only tested on the DEFY of course), but I think it can let you "continue the testing".

Related

[Q] Unknown IMEI/Baseband version issue

Hello people, I have a rather peculiar issue with my SII
I have had this issue for some time now and really doesnt bother me that much, its just annoying. And its just now that I have bothered writing a post about it.
If Ive run out of battery, I plug my phone into the charger, turn it on while its charging, I get no service, not prompted to input PIN and get the Uknown IMEI\baseband version. But if I let it charge a couple of minutes, unplug the charger and turn it on, everything works fine. Whats going on here?
I think this problem occured after installing one of bmarko's MIUI roms. I have since full wiped and restored stock rom. Upgraded two new official samsung roms as they have been released, currently running XWKI8 unrooted completely stock and the issue still persist.
I have searched around and there are similar cases out there but not really any clear solutions. Theres even a post over at cyanogenmods forum site, but no replies.
As said earlier its not really a big issue for me, not expecting a immediate solution but I would really like to understand the problem if someone has the information since I dont have the technical competence to understand it myself. I obviously havent corrupted or lost anything in my efs folder since its working without the charger, or? Could there be remains of a bug from another rom still in the system causing this?
Any replies would be appreciated, thanks.
Same Problem
Hey FlipTrick,
I got exactly the same problem. Dont remember how it happened exactly, but do remember I didn't do anything exotic. Can't display my IMEI, unknown baseband version and no prompt for my PIN.
I Tried several things:
- Reflashed the advised codeworx kernel using odin.
- ReInstalled CM 7.1 and tried nightly version.
- Reflashed different RADIO ROMS from XDA (goo.gl/TjoaM)
Nothing worked. Does anyone know what the problem might be? Or know what I could try next?
Greetings,
Xianduras
I had this problem once when I used a jig to reset the flash counter. Given the modem (and the IMEI) wasn't showing up in the phone details, I reflashed the modem which fixed it.
Occasionally after a reboot my modem/IMEI details take around 20-30 seconds to appear, but they've never not turned up/left me without service apart from that one occasion.
problem gone?!
Problem seems to be gone, noticed it after flashing Hydrog3n rom. Cant say if thats the solution though, havent tested it for awhile and i've flashed alot of roms

[Q] [HELP] XPeria Mini Pro SK17i Turn Off Automatic and Reboot again

hi all.
i have a problem on my xperia mini pro.
i dont know whats wrong.
when i lock my phone, and i want to turn it on back, it is turn off and suddenly the S.E logo appears.
seems like rebooting back.
sometimes when i make the screen timeout for 30minutes, it will also turn off by itself and restart back by itself. sometimes it goes off and no reboot back.
i have search on XDA and found that few problems like mine.
i try few solution like take out the battery, uninstall apps which maybe make my phone turn off.
i also reflash my phone to 2.3.3 and also reflash back to 2.3.4. it just goes the same. my warranty have void as i have unlock my bootloader.
i just dont root my phone yet as i think rooting my phone doesnt help this problem.
someone can help me? i really miss my phone like the old days to tweeting and facebooking without any turn off and reboot by its own.
Did you try a factory reset? This may fix your problem. But rooting could possible help.....
Please hit the thank you button if i helped!
techno-update said:
Did you try a factory reset? This may fix your problem. But rooting could possible help.....
Please hit the thank you button if i helped!
Click to expand...
Click to collapse
i've done the factory reset before. seems like it does not really help much.
not trying to root yet coz i dont think rooting can solve the problem
Does it make any difference if you start the phone with the charger plugged into it?
...or even without the SIM card or SD card? Any difference at all?
-Markus
Sony Ericsson Answers Team
Markus-SEAnswers said:
Does it make any difference if you start the phone with the charger plugged into it?
...or even without the SIM card or SD card? Any difference at all?
-Markus
Sony Ericsson Answers Team
Click to expand...
Click to collapse
I bought the phone over from bobo. And yes it does make a difference.
This problem does not occur whenever the phone is plugged in. However while running on battery, if I leave it be and once it goes into standby, it would not turn on again.
Seems to me it went into sleep of death.
At the moment, I have no idea how to fix it. But I've found a workaround by keeping the CPU on when the display is off by using wake_lock. However this workaround is a little battery consuming.
ranmaru90 said:
I bought the phone over from bobo. And yes it does make a difference.
This problem does not occur whenever the phone is plugged in. However while running on battery, if I leave it be and once it goes into standby, it would not turn on again.
Seems to me it went into sleep of death.
At the moment, I have no idea how to fix it. But I've found a workaround by keeping the CPU on when the display is off by using wake_lock. However this workaround is a little battery consuming.
Click to expand...
Click to collapse
bro i have this problem before, what im doing before was playing music on mute for it not to turn off NOT until 0.62 FW came out and the problem was solved, it doesnt turn off on stock 0.62 fw and stock 2.3.4 but the screen when locked automatically turns on and off multiple times, its annoying..really so i decided to unlock my bootloader, flashed rooted 0.62 FW from here http://forum.xda-developers.com/showthread.php?t=1440161, turning on and off phone and screen solved, flashed its respective ROM http://forum.xda-developers.com/showthread.php?t=1373435, and now my phone is so stable and having no more problem.
i think the only problem i noticed just now is the back button (its not really a button) and the option button's light is turning off and on while screen is on. but thats better than your phone turns on and off or your screen.
i hope this helps.
smxaz61 said:
bro i have this problem before, what im doing before was playing music on mute for it not to turn off NOT until 0.62 FW came out and the problem was solved, it doesnt turn off on stock 0.62 fw and stock 2.3.4 but the screen when locked automatically turns on and off multiple times, its annoying..really so i decided to unlock my bootloader, flashed rooted 0.62 FW from here http://forum.xda-developers.com/showthread.php?t=1440161, turning on and off phone and screen solved, flashed its respective ROM http://forum.xda-developers.com/showthread.php?t=1373435, and now my phone is so stable and having no more problem.
i think the only problem i noticed just now is the back button (its not really a button) and the option button's light is turning off and on while screen is on. but thats better than your phone turns on and off or your screen.
i hope this helps.
Click to expand...
Click to collapse
I've done this too. Flashed the same kernel, and the same ROM as you did. But the problem still prevails in my phone. I still have to keep control of wake_lock to prevent CPU from sleeping while the display is off.
Btw, when I flashed the kernel, under my "About" in the settings, it still says .58 instead of .62.
ranmaru90 said:
I've done this too. Flashed the same kernel, and the same ROM as you did. But the problem still prevails in my phone. I still have to keep control of wake_lock to prevent CPU from sleeping while the display is off.
Btw, when I flashed the kernel, under my "About" in the settings, it still says .58 instead of .62.
Click to expand...
Click to collapse
you mean in the Settings>About Phone> in the build number it should have HYBROM V9 by boof not the kernel name like .58 or .62 if you flashed the kernel and rom correctly.
disable lockscreen
Try to disable your lockscreen in the settings menu. Maybe that helps
My phone have the very same problem.
Any good new?
I've tried the factory restore. Didn't solve the problem.
so....no solutions yet!!??!
Xperia Mini pro (SK17i) Keep on rebooting
Markus-SonyXperiaSupport said:
Does it make any difference if you start the phone with the charger plugged into it?
...or even without the SIM card or SD card? Any difference at all?
-Markus
Sony Ericsson Answers Team
Click to expand...
Click to collapse
Hi ,
I am also facing the issue with phone from last week, I tried without memory card , without SIM and even change them to, I though it was software issue so I reloaded it from Sony Tool but still the same issue, cant use my phone at all until or unless I plug it on raw power. Its working fine on charging mode but with Battery its not at all working. Not sure whats wrong with it.
Could you please guide me on it, what I need to do , is it hardware issue? or related with software?
Already wiped and restore the phone as well.
Tried battery replacement as well but its not at all working.
Regards | Krishna
kcjoc.joshi said:
Hi ,
I am also facing the issue with phone from last week, I tried without memory card , without SIM and even change them to, I though it was software issue so I reloaded it from Sony Tool but still the same issue, cant use my phone at all until or unless I plug it on raw power. Its working fine on charging mode but with Battery its not at all working. Not sure whats wrong with it.
Could you please guide me on it, what I need to do , is it hardware issue? or related with software?
Already wiped and restore the phone as well.
Tried battery replacement as well but its not at all working.
Regards | Krishna
Click to expand...
Click to collapse
hi, i'm facing the same problem last night. have you try to change the battery?
my sony xperia mini pro keeps on restarting
hey...i am having the same problem.. it has jst been 2 days since i upgraded it to ice cream.. n it keeps in restarting.it show screen for 3 second and the lights dims out n restart..i did on it without sim and memory card..still it keeps on restarting..any help please

[Q] Phone completely freezes after ICS update. HELP!!!

Hi guys,
I have a huge problem. I had a stock GB firmware customized by Optus (carrier in Australia) on my S2 I then decided to change to the new ICS 4.0.4. I downloaded the stock unbranded firmware from SamMobile (Australia 2012 September 4.0.4 I9100XWLPW, I9100XSALP6, XSA) I updated using Odin. Before I did the update I reset the phone, did the update, it all went smoothly. After the update I reset the phone again and then proceeded to reinstall all my apps and restore my contacts, sms, etc.
The phone works and all functions on it work, however now very randomly the phone would totally freeze. The phone would be in standby, the screen would come on and it would be frozen. The screen stay on all the time and it does not respond at all. It will stay frozen until I restart the phone by pressing Home+power buttons to restart it.
After restart it all works fine for a few hours, sometimes a day and would just lock up again. The phone is not rooted and as I said i just changed the firmware from the Optus branded GB 2.3.6 to unbranded stock ICS 4.0.4 by using Odin.
Is there a way to find out what is causing the phone to lock up like that? Any suggestions would be helpful.
and then proceeded to reinstall all my apps and restore my contacts, sms, etc.
Click to expand...
Click to collapse
I hope you haven't restored any data app?
przemcio510 said:
I hope you haven't restored any data app?
Click to expand...
Click to collapse
I made sure that I didn't restore any data apps. The only apps that got restored are the ones that get automatically restored by Play store.
I have disabled the live wallpaper that I had and it seems to have stopped the freezing for the moment. I will report on what I find out.
In the mean time if anyone else has a similar issue or has a definite solution please let me know.
Thanks
i know this is a resurrection, but don't see it has been resolved.
also found same/similar problem on another topic, but no resolution either.
couldn't find any resolution anywhere on the net, but possibly i'm just missing it (searching for wrong parameters?)
anyway, a friend of mine bought second-hand (third or even fourth hand to be precise) i9100 with 2.3.6 (stock KI3) on it. the guy who sold it to him said something like: "it works best on 2.3, on 4.x it's buggy".
it was working fine, but friend wanted newer OS, so we tried update. it didn't work, and i found out CSC was broken/missing. somehow i managed to repair it, and update was finally working, but was unable to find any for our location.
so next step was to find stock rom that would work on the device, and then i tried four different 4.1.2 stock roms from this topic.
after flashing it through odin, every one was acting fine, until couple of minutes after it started freezing or rebooting randomly.
then i tried flashing CWM, and flashing from sd card, but it was all the same.
wiping data, cache and dalvik cache, prior to flashing. wiping data after flashing...
nothing seemed to work.
GB works rock solid, ICS works better than JB, but stills it freezes or restarts randomly.
tried CM10, but all the same, except it works a bit faster then official JB. but who cares about speed if it freezes/restarts constantly?
back to who knows which build... freeze... samsung galaxy s2 - i9100... with yellow triangle... booting stopped.
so i decided to dig deeper, trying to find hungarian stock build (country we were told the phone came from) not being sure that KI3 is what the phone came actually with. i found 4.0.3, put it on SD card, wiped data, cache, flashed CWM, wiped data, cache, dalvik cache, flashed 4.0.3 from sd, wiped data, booted, entered location for updates - hungary. update found, hooray... downloading... installing... rebooting... working?
nope... it's worse than ever. trying to log onto google account. typing in email add.... freeze... switching phone on - freeze... thinking about... freeze.
i couldn't sit still. yellow triangle, all those reboots/freezes... at least i wanted that triangle gone, and without a JIG, there was only solution for me was to try triangle away. it wasn't available for download in my country from play store, so luckily xda was there.
somehow i managed to download it from the device, install it, click remove the triangle... it did it's magic, rebooted... and miracle happened!
no more freezes.
so i started torturing poor phone, benchmarking, playing games, listening to music.... it seemed stable for about an hour.
so i said to myself:
- it's possible that previous owners tried to upgrade it to newer firmware, and somehow screwed up the bootloader, which was fixed by this app? maybe that was all there was from the beginning? why not try putting 4.1.2?
and i did... took 4.1.2 spanish build from already mentioned page above, flashed it... and voila. working JB... torturing the phone... playing with it... hour passes, another hour...
friend wakes up... takes his phone in awe, starts playing with it.. we talk a bit... and then that look it just froze again!
from that moment on, the phone again starts restarting or freezing randomly...
and, yes, i still have no clue what could be the cause. it doesn't matter if wifi is on or off, if you're talking on the phone or not, bluetooth and gps are always off. only thing that he noticed is that it usually happens while he's using the phone (meaning: operating the digitizer or buttons). if he starts music playback and not touching buttons or screen, it will probably play for hours.
one more thing, but i doubt it would be the case. the battery in the phone is not original one that was shipped with it, but a quality replacement.
it doesn't feel as if the phone is overheating... so i don't know what else i could do with it.
for now, it's back to 2.3.6.
we both lost a week, torturing ourselves with this problem.
i don't know is there anything i could add more?
all suggestions are welcome.
cheers
Maybe try kernel cleaning script and try philz or siyah kernels.
You shouldn't have to flash a custom kernel so your phone won't freeze, but yes, you could run a nuke script in order to wipe clean all custom ROM's leftovers.
Try flashin' jb via mobile odin, see if it keeps freezing up on you. If so, nuke it up.
Sent from the little guy
i'll try them out.
probably for the weekend, if not sooner. will report back here with info.
any other suggestions are also welcome.
thanks a lot.
cheers
ok, so here are some updates.
i finally got my hands back on my friends phone, and tried nuking remains of older flashes.
following that, i flashed stock spanish rom from above mentioned page, updated after installation to spanish update... and after a few minutes, sudden reboot...
so, went back to nuking, and flashed stock hungarian 4.0.3 i found elsewhere (mentioned in my earlier post. don't remember origin... if i find the link on another computer where i downloaded it on, i'll post the link). tried updating, says no updates found.
started torturing the device. it seemed solid, but battery reported it level was low, so hooked it up onto charger and all seemed well. but phone seemed a bit too hot.
after few minutes (this was all about half an hour to hour after flashing to 4.0.3), again freeze.
after rebooting the phone, battery was at 9%, as if processes were draining battery faster than charger recharged it.
so, i figured i gotta try original battery. so i switched his battery with genuine from my phone.
phone seems stable and less hot, for now.
still checking if it is going to freeze or reboot again.
it's about one hour since battery change. still on charger and using wifi and playing around with apps.
i'll check in with news later.
cheers
I have the same issue.but my battery is original.
What I noticed that the phone stuck when I receive an update notification.
Can I stop softwsre to ask for updates? ???
Sent from my GT-I9100G using xda app-developers app
^go to settings, about device, software update and detick auto update. that should stop it from trying to self-update.
ok, so here is an update to my friend's phone status.
currently on hungarian 4.0.3. about 3-4 freezes/reboots a day. sporadic connection breakups during calls. also, when we talk i can hear myself back. this brings me to conclusion it has to do with modem firmware. i found this topic, so i'll try putting that and see what will happen.
if that doesn't solve anything, my question is this: is there any way of knowing which firmware/rom was originally put on the device, since i don't know the real background of the device? i.e. some way of entering IMEI and finding out what should be on it?
cheers
EDIT: tried KH3 modem, no changes... i could still hear myself while talking to my friend on that device. also, it froze couple minutes later. going back to 2.3.5-2.3.6 for now.
so after couple of months, i finally got my hands back onto this phone...
gave my friend my phone, so i could play a bit with this faulty one.
i have played with it for a couple of days now, and here are things i've tried.
i received it from a friend with 2.3.5 on it which had triggered custom binary counter. he's been using it for couple months without any problems.
so i rooted it and installed triangle away again... reset counter, cleared and flashed hungarian stock (telenor) 4.1.2... random freezes again.
tried several stock roms, mostly hungarian ones (4.0.3, 4.1.2). even reformatted with .pit file... random freezes.
reformatted again with .pit and put XXLSJ, installed stability test and let it run...
cpu stability test 15.5 hours no problems, no freezes. then i realized it didn't have a sim card, so i rebooted phone and installed sim card. let it test cpu+gpu for 9 hours... no errors, no problems, no freezes.
so i thought, maybe it's all fine? but it wasn't! as soon as i took phone into my hands and started going through menus it froze!
so i tried SGII_repair, rooted and did "repair"... but nothing changed... still random freezes.
if i just let it do the stability test, it'll probably work forever.
things i've noticed:
- serial number is wrong format (14 hex digits instead of 11 alphanumeric)
- during stability test, cpu frequency dropped from 1200 to 800 mhz (maybe because it was getting warmer? 42-43C during cpu only+charging battery, and about 39-40 during cpu+gpu test)
i tried to find out which firmware is latest according to serial number via kies, but it gave me error.
i know it's from hungarian market, but don't know which exact part of it (branded or not).
don't know what previous owners did to it, and don't have backups of original efs or anything original.
i just want to make it work, don't care much about custom firmwares. i'd be happy even with unrooted stock... just for it to work!
i have no ideas what else to do.
anyone?
finally, as i couldn't resolve the problem, i returned phone to 2.3.5 and sold it as is.
thanks to all people who tried to help.
cheers

[Help] Lost IMEI after update to , and downgrade

Well, received my Sony Xperia Z Ultra C6833 a couple of days ago.
Received a notice on the OTA, upgraded to 14.1.B.2.257
I encountered random restart issues whenever Wifi is activated, so I thought, fine.
I finally have access to my computer, installed the PC companion, it prompt me with a new 14.2.A.0.290 update.
Again, I updated my phone, hoping it'll fix the Wifi problem.
After restarting, I did a test, as usual. Wifi problem persists, and what's worse, a new problem. Wifi and Playstation 3 SixAxis controller connected using bluetooth didn't play nice, caused my phone to reboot.
I know a lot of people downgraded the firmware back to the previous version, with NAN backups etc.
And some even managed to restore their IMEI back to normal.
But for my case, I haven't root my phone, attempt to downgrade it using Flashtool, lost my IMEI.
Seems that I have no choice, but to return it back to 14.2.A.0.290 praying that it works, and I still can't see my IMEI.
No, I don't have a NAN backup. That's the part which gave me a headache. I've messed around with HTC one X (a year ago), never had this problem problem before, and it's something new I've learnt from you guys today.
Tried cyangenmod's boot.img, doesn't do me any good.
Anyone managed to recover their IMEI here?
Otherwise I might have to get it back to the dealer for a replacement.
Update: Thanks to krabappel2548's guide, I've managed to flash it to 14.2.A.0.290 again and got my IMEI back, but SixAxis still won't play nice with Wifi, and the problem with random reboots while Wifi is ON still persists.
we have the same issue, mine happened during the old update, after ota wifi gets stuck, wont turn on and reboots the device. upto now its still not fixed. 3 updates have passed and still the issue persist. hope you find a fix it will help me too. tried everything from downgrading, flashing custom rom,kernel, upgrade, unlock, relock but still cant fix it
I guess i'm not the only one then. I can live with the wifi issue for the time being as long as i stick to using data. But i fear it's going to affect tethering should i need that.
Please take a look at this post, it may help you. --> http://forum.xda-developers.com/showthread.php?t=2573349
nopponm said:
Please take a look at this post, it may help you. --> http://forum.xda-developers.com/showthread.php?t=2573349
Click to expand...
Click to collapse
Read it the moment I discovered that my IMEI is missing.
I tried reflashing excluding the baseband, doesn't work for me, right after i realized i have a missing IMEI.
Read up on the android emulator, but haven't tried it, as my computer is kinda old, took forever to run it. Will try it once I get my hands on a faster computer
Bah. Crashed when I tried to use my qx100 which i've just received. Haha. Anyone else has any fun with qx100 and z ultra combo? The Z ultra almost reminds me of my ex-girlfriend.
Meanwhile, I can't wait for kit Kat, and hope they really squash these bugs
The best thing would be to contact Sony and make them aware of this bug. Losing your IMEI by simply updating should never happen and it's quite a serious bug.
Actually i lost it after downgrading. Downgrade is simply because of phone keeps rebooting after I turn Wifi on.
LordManhattan said:
The best thing would be to contact Sony and make them aware of this bug. Losing your IMEI by simply updating should never happen and it's quite a serious bug.
Click to expand...
Click to collapse
let's hope this is the answer : p
New build 14.2.A.1.114
abuihsan said:
let's hope this is the answer : p
New build 14.2.A.1.114
Click to expand...
Click to collapse
I certainly hope so too.
Hope it fixes the rebooting issue with WiFi enabled.
Or the Google Play Edition port if it does fix the problem too
Anyone tested the new update yet? Does it fix the wifi issues with crashing/rebooting?
ok so i purchased my phone on amazon and got it somewhere around feb 25th, i got a message on the phone to update software so naturally i did, then i discovered what rooting does and i decided to follow some youtube instructions to flash my phone to an earlier firmware the link wasnt working so i found another which was C6802_14.1.B.0.475_GENERIC Hong Kong.ftf after flashing this i lost my imei its all zeros and i then tried flashing C6802_14.1.B.1.526_M3dD0g.ftf with no luck so im trying to find out what the updated software was that i must have downloaded when i first got the phone given the date i had recieved it im thinking that the 14.2.A.1.142 is the correct one that i must have updated to, i was running version 4.3 jelly bean before all this happened i also have this problem where everytime i turn off the phone and turn it back on it is in the chinese writing again and asks me to select my language again anyone know what to do short of return the phone while i still got time my internet is extremely slow im tired of it taking 4 hours to load a new ftf just to find out its not the right one ive heard some where hving success with the 290 getting their imei back but im thinking thats the software they started with or updated to to get it back so i have no idea which one i started with or which one i updated to all i know is the date i got it and that possibly its the 14.2.A.1.142 looks really familiar im downloading that one now so we will see what happens and i also read something about flashing excluding the basebands so if that is part of it please make it as clear as possible im obviously a noob but im learning quick
Pleas dont ask the same question in multiple threads.
See my reply to the other thread you necromanced

Question Random reboots

My pixel reboots randomly during the date, whether i use it or not..
Also when i use the camera app, the app very often crashes and the phone restarts..
I have done all the updates, i 've tried in safe mode, i 've done hard reset..
Till now nothing has solved the problem..
Any ideas?
warranty & replace it.
if random reboots suddenly occur, it's a hardware problem.
I' ve read that some other users have experienced a similar problem..
I am interesting in finding out how they resolved the issue..
Rma, flashing custom rom etc..
I' ve read that some other users have experienced a similar issue..
I am interesting in finding out how they resolved the issue..
R, flashing custom rom etc..
(sorry for the double post, please delete)
I had the same problem. I rooted my device a few months ago and everytyhing worked fine until the January update. I used the android flashtool and rooted it again. A week later the same problem occured again. So I did a full wiped, locked the bootloader again and everything works fine again.

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