Random freezes/reboots - Galaxy S II Q&A, Help & Troubleshooting

Hi folks,
I have got a problem with my S2 on NDTs newest MIUI rom running with the latest siyah kernel (actually problems started around mid december).
The phone freezes very often while having wlan turned on (esp. when I am using the market app). I have to take out the battery to revive the phone.
Second "problem" is that the phone reboots quite often lately (hot reboot, i dont have to enter my pin). it usually happens when i am playing some game or browsing the internet.
These problems have occurred on various roms (miui,ics,stock).
Need help as I need the phone for work (though I haven't had a reboot/freeze while talking or messaging). Anyone?
Maybe the logcat file can help. I saved the logfile moments ago, shortly after the phone had 2-3 reboots while playing Little Empire. I don't know how to "read" it though
Uh, and I asked the shop where i bought my phone about a replacement device. no chance. they want me to send the phone to their repair center which will take at least 7 days (the whole process). can't do that because i need it for work ((

a more experienced user will be along soon no doubt.
I'd do a full wipe and re-flash miui to be honest mate nobody wants to lose their data but if its randomly rebooting a lot then its possibly your only option other than sending it to be serviced.

Hey. I have done countless wipes and i have re-flashed different versions of miui more often than i can remember. I formatted /system and /data (/system was kind of stupid as I had to flash via Odin afterwards -.-). Even if I do not use any backups (I have also tried only adding my google account and installing some apps from the market after a clean install) these problems occur. ARGĀ§$R%"$

dabrain23 said:
Hi folks,
I have got a problem with my S2 on NDTs newest MIUI rom running with the latest siyah kernel (actually problems started around mid december).
The phone freezes very often while having wlan turned on (esp. when I am using the market app). I have to take out the battery to revive the phone.
Second "problem" is that the phone reboots quite often lately (hot reboot, i dont have to enter my pin). it usually happens when i am playing some game or browsing the internet.
These problems have occurred on various roms (miui,ics,stock).
Need help as I need the phone for work (though I haven't had a reboot/freeze while talking or messaging). Anyone?
Maybe the logcat file can help. I saved the logfile moments ago, shortly after the phone had 2-3 reboots while playing Little Empire. I don't know how to "read" it though
Uh, and I asked the shop where i bought my phone about a replacement device. no chance. they want me to send the phone to their repair center which will take at least 7 days (the whole process). can't do that because i need it for work ((
Click to expand...
Click to collapse
i got the same problem! my phone freez on market often . i think it's not related to kernel ! probably something wrong with miui or market app.

Seriously no one?
really need help as i am close to throwing my phone against the wall -.-

have you tried a complete repartitioning of the phone, and then flashing a stock ROM with the new bootloader ?
(EDIT : looks to me like the problem comes from the modem you're using and your service provider, you got a lot of lines like those in your log :
I/TelephonyRegistry( 6376): notifyServiceState: 0 home Telekom.de Telekom.de 26201 UMTS CSS not supported -1 -1RoamInd: -1DefRoamInd: -1EmergOnly: false I/TelephonyRegistry( 6376): notifyDataConnection: state=2 isDataConnectivityPossible=true reason=null interfaceName=pdp0 networkType=3
Basically it tells you some parameter passed to the modem is incompatible with the service you're connected to.
I'd try flashing another modem -through CWM or Odin, don't matter as long as you do a dalvik cache wipe before you reboot the phone).

you mean repartitioning via odin?
somehow i tried flashing the original roms from here http://forum.xda-developers.com/showthread.php?t=1075278
but it didnt work. got any link for me (esp. new bootloader)?
Modem ver is XXLP6, prior to that i have been using BOKJ1 which was said to be specifically for T-Mobile (my carrier). the problem occurred on bokj1 too, just a bit less frequently.

Hm, no one else having these problems?
i guess i got unlucky with my device then ...

Related

[Q] Don't install new firmware - it bricks the phone!

Hello,
I downloaded the official rom from the official HTC website.
It is the WWE East Europe version - suited for my device because the SN is confirmed.
The download finished OK from the Europe 2 server.
I flashed by placing the extracted leoimg.nbh on the root of the SD Card.
I confirmed that the flash was successful - it shows the correct version number of Manilla, radio, etc. Additionally, the ROM is still only 448 MB.
However, the phone freezes all the time and/or restarts itself complely randomly - I have observed this 22 times in the past hour. Is anyone experiencing something similar?
I have redone the flash again, but the same issue occurs.
This is happening with no programs installed, no HSPL, etc. Everything is completely clean.
What can I do to stop this?
may i know why you flashed the latest stock rom using your sd card. would it not be easier to flash through your pc using a usb cable?
you might want to check the meaning of "bricking the phone"...........
then remove it from the title of the thread........
As Rurph mentioned, flash it via your pc, still following the instructions from theHTC site
I now tried flashing through PC, same freezing occurs.
To reiterate:
I have an original HTC HD2 bought from the official HTC shop in Czech republic.
I downloaded the latest official ROM for HTC HD2 from the official htc.com/cz website using my original serial number.
The download finished successfully every time (I tried it 5 times from all the different servers), and the SHA-1 hash of the files was identical every time.
I now flashed it using the normal PC method - everything appeared successful.
I also tried extracting the nbh file from the downloaded file - both by running the .exe file, and by extracting it using winrar - both methods gave me the same nbh file with the same SHA-1 hash. Then I moved the leoimg.nbh to the root of SD card and flashed using the SD-Card method. Everything appeared successful.
Both of the above methods give me a system that freezes completely at random. For example when starting the phone, it can just freeze (left it for 8 hours over night, it remained frozed), when moving from 1 tab to another (freezes in the middle of the animation), when opening the start menu, when going into settings, when making phone call, when opening SMS, and most importantly when NOT DOING ANYTHING AT ALL.
What can I do?
Try to flash an older Version.
I don't know if its possible, but maybe that solves your problem.
Did you have SPL 3.03? If no... Install HSPL and use a custom ROM like the one from NRGZ28 (EnergyROM)
If you an't flash the older version via RUU (Rom Update Utility) try to flash it from SD card. You can also perform a "task 29" with MTTY (before you flash)
But be careful, you can brick your phone...
I have always only used official ROMs from HTC, so I never needed HSPL so I never installed it. I also always prefer the official ROMs so I would rather not use a cooked one.
I think flashing an older version would solve the problem, however I would rather like to find out what the cause is...
So far, I managed to get my phone to a useable state by running Android from the SD card - it works flawlessly for all my purposes. The only problem was to start Android through Windows before windows manages to freeze...
Given that android does not freeze, I believe that the freezing problem must be a windows mobile issue.
Any suggestions for tracking down this freezing problem? Could it be a hardware issue?
hard reset. and if no better flash the rom again followed by hard reset.always hard reset straight away as soon as you see a glitch in a freshly flashed rom. don't ask me why, cos i don't know, but it does seem to help when a flash doesn't "take".
oh and you didn't leave the old application data folder on your sd card did you? or try to restore registry settings?
samsamuel said:
hard reset. and if no better flash the rom again followed by hard reset.always hard reset straight away as soon as you see a glitch in a freshly flashed rom. don't ask me why, cos i don't know, but it does seem to help when a flash doesn't "take".
Click to expand...
Click to collapse
I always hard reset before and after a flash. No change - freezing still occurs.
Even when I did multiple hard resets, the freezing persisted.
The SD card is freshly formatted, checked for no filesystem errors.
I did not restore any settings or anything else - the problem occurs on a completely fresh clean flash.
Additionally, the problem occurs even with no SIM card or SD card inserted into the phone.
Overheating?
I concur with rr5678, seems more like overheating than ROM problems, esp. that I've had the same ROM for a week with no problems whatsoever
hence kind request to OP: check overheating threads and please change the thread subject to a more accurate one so it does not spread misinformation and panic
as for the overheating - 1st thing to do is installing BattClock and monitoring correlation between freezes and battery temperature
rr5678 said:
Overheating?
Click to expand...
Click to collapse
The phone is definitely not overheating. It is very cold to touch and it runs Android without a problem.
OK I did some more testing - going back to any previous ROM fixes the freezing. Then installing the newest ROM reintroduces the freezing.
Given that it is definitely not a hardware issue (works on previous ROM, works on Android, no overheating), it looks like a Windows mobile issue.
I am surprised that nobody else is experiencing this. How come I am the only one? What is so special about my phone?
And the new firmware can "brick" the phone - a less skilled user would not be able to do anything with a frozen phone...
Anyone know why I get no ringtones or alarm sounds when using 1.8?
Deliberate?
Edit: Weird, seems first time a check a ringtone or alarm sound list it's empy. I leave then go back, it's populated again. So self-fixing issue.
Edit 2: Yeah.. tabs got mixed up, completely wrong thread, sorry!
Anyone help?
HTC Support is as always useless - their advice was to take out the battery and put it back in...
Additionally, I think this is a similar problem:
http://forum.xda-developers.com/showthread.php?t=818169
b2206015 said:
Anyone help?
HTC Support is as always useless - their advice was to take out the battery and put it back in...
Additionally, I think this is a similar problem:
http://forum.xda-developers.com/showthread.php?t=818169
Click to expand...
Click to collapse
Try another sim card if you can. I know it sounds crazy but...
wardh said:
Try another sim card if you can. I know it sounds crazy but...
Click to expand...
Click to collapse
Thanks for the advice - but given that the phone freezes even with no SIM card inserted, I do not think that it is the case...
I have however tested inserting a different SIM card anyway, and the freezing occured again...
I too faced constant freezing problems with the official ROM but then I used HSPL and flashed a different radio (2.12 in my case) and ever since never faced any freezing problems..worth a try I guess...
epic fail
not being picky, but "bricking" is, as far I know, by definition an irreversible problem? Hanging and freezing and re-booting are not bricking.
That said, sorry to hear about your troubles.
Sounds like going back to your old ROM is the only solution right now.
b2206015 said:
Hello,
I downloaded the official rom from the official HTC website.
It is the WWE East Europe version - suited for my device because the SN is confirmed.
The download finished OK from the Europe 2 server.
I flashed by placing the extracted leoimg.nbh on the root of the SD Card.
I confirmed that the flash was successful - it shows the correct version number of Manilla, radio, etc. Additionally, the ROM is still only 448 MB.
However, the phone freezes all the time and/or restarts itself complely randomly - I have observed this 22 times in the past hour. Is anyone experiencing something similar?
I have redone the flash again, but the same issue occurs.
This is happening with no programs installed, no HSPL, etc. Everything is completely clean.
What can I do to stop this?
Click to expand...
Click to collapse
Psaldorn said:
Anyone know why I get no ringtones or alarm sounds when using 1.8?
Deliberate?
Edit: Weird, seems first time a check a ringtone or alarm sound list it's empy. I leave then go back, it's populated again. So self-fixing issue.
Edit 2: Yeah.. tabs got mixed up, completely wrong thread, sorry!
Click to expand...
Click to collapse
Well, to me it seems your phone just doesn't like custom ROMs.

[Q] LG P500 random shutdown

My O1 shuts down every few hours by itself. As everybody told me, i removed the sd card to see if that is the problem, but it still shuts down. Al this "shutdown frenzy" started after i flashed the first custom rom, Void.
I flashed back via nand recovery, i did all possible stuff, but nothing. As i tried reinstalling the original firmware i found out that i coudnt, theres no firmware for Romania, and the KDZ crashez on my machine...
Any suggestions on this one?
Ruwin said:
My O1 shuts down every few hours by itself. As everybody told me, i removed the sd card to see if that is the problem, but it still shuts down. Al this "shutdown frenzy" started after i flashed the first custom rom, Void.
I flashed back via nand recovery, i did all possible stuff, but nothing. As i tried reinstalling the original firmware i found out that i coudnt, theres no firmware for Romania, and the KDZ crashez on my machine...
Any suggestions on this one?
Click to expand...
Click to collapse
Strange... it's really hard way to resolve, but what about some logging on SDCARD? Problem is that it can be really huge file. And Murphy law... it definitely will not restart for many hours...
I just bought a class 6 sd card, i'm testing it, maybe it's the card that shuts down the phone... i'll post the result tomorrow.
Lol man , I have the V10B for romania . I can give it to you on messenger if you add me : zerobarat1 .
Cheers
I had void with gapps, gingerbread, kernel, a2sd, blink, tapps folders on sd. Then I flashed milk_os kernel. Everything was fine.
Then I created stage fright and hwacc folders for quadrant testing. Something happened my neocore score was only 9 fps (though quadrant was 1100). I deleted stage fright, hwacc and kernel folders. Phone was fine again. But was going to sleep of death after some time of non usage. Didn't reboot even from power button. Had to take put and reinsert battery.
So I created the kernel folder again and rebooted. Went into recovery again and applied milk_os kernel again and rebooted. Everything is fine now.
Something remotely similar happened to me a while ago. I found the phone turned off without any particular reason and it refused to power on until I removed and reinserted the battery. It had me worried, but fortunately this didn't happened again ever since.
My problem seems unsolved. I also found my phone dead two times again only in last 4 hours.
Guys any solution. I have void with a2sd enabled and with mik_os kernel 1.1
Did you have the same problem when you were on stock? It might be a physical fault rather than the rom. Also, I believe the latest void already have mik_os kernel 1.1? So there was no need to flash it again.
a2sd maybe? I read quite a lot of issues with that thing.
Miks kernel 1.1 has some scrolling bugs, flash 1.0 and maybe problems solved
I applied mik_os v 1.0. Now everything seems ok for last 16 hours. Will notice further.
Everything ok till now. May be it was something related to mik_ os 1.1.
With 1.0 problem seems to be fixed as of now.
Try dev kernel v3, it's enhanced version of mik's v1.0 kernel
Sorry to say, but this damn bug stroke again. I just found my phone dead, unwilling to reboot unless I took out the battery (which, by the way, was 94% full).
I'm using void #alpha with a2sd and mik_os kernel 1.0 and I don't have the sdcard unmount problem. I can't tell if this also happens on stock ROM since I don't intend to go back to stock ROM until LG rolls out the 2.3 version.
Waiting for some stock ROM user input, but my guess is that this is hardware related.
Any help?
That happens to me all the time!! I took it to LG center and they said it's because of software problem. Anyway, now my phone has one problem. I accidentally made the locker apps to make default screen and it totally black out my home screen. I can't access to my setting to get rid of this apps or can't make even calls. I tried restarting again and again but it doesn't work. How can I uninstall the apps on phone storage by using PC? Or any better way to solve it. I'm a beginner to Android. So, please kindly help me. It is so annoying.
Hit the search button on phone and if search screen appears, type settings in it. If you are able to reach settings, you can do everything from there. Try playing with the search button on the phone.
If this does not help, you will have to do a factory reset. You can do a factory reset by the pressing the combo of home + vol down + power on buttons if you are on stock rom. If other rom, do via recovery.
winnie34 said:
That happens to me all the time!! I took it to LG center and they said it's because of software problem. Anyway, now my phone has one problem. I accidentally made the locker apps to make default screen and it totally black out my home screen. I can't access to my setting to get rid of this apps or can't make even calls. I tried restarting again and again but it doesn't work. How can I uninstall the apps on phone storage by using PC? Or any better way to solve it. I'm a beginner to Android. So, please kindly help me. It is so annoying.
Click to expand...
Click to collapse
same here too .... (when the phone turn off the screen automatically...or auto suspend...is the same) i have the #echo and .... i have the random power off and... some times... it keeps on the boot loop when it supous to suspend... butn when i suspend the phone whit the power button ... the phone keeps working fine... i dont know what to do... XD
I got the class 6 SD and since then i had no problems with shutdown. Though at the time i'm writing, my O1 is at service. It seemed that the shutdowns are related to the sd, even if you don't get any unmount errors. My logs say that each time the phone shut down, it was trying to access a service from the sd memory, and, guess what, there was no sd! So it closed all the services.
could it be unmounting sd card?
After a long time of checking how to fix this, I, finally found it.
I had this error several times, and, I always tried to check where it was the error. I did a factory reset and, suddenly this error stopped. But I needed to know exactly by "doing what" this error appeared.
This error appears in one of this two:
- if you dissactivate the "rotation" in your phone.
- if you dissable bluetooth in your phone
One of those two. If I dissable this two, my phone, in about 1 hour, it suddenly shutdown. But inmmediatly if I enable this options, its stops to crash.
You can toogle this options with the "battery" widget in your phone.
I hope this will help you, as it helped me. Plz, tell all the ppl about, how to fix this.

[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

Can't fix Bugged custom ROM

I have a Galaxy S III GT-I9300 I bought in 2014. After three years, I downloaded a custom ROM from xda-developers (android 4.3 is all I remember about it) and installed it successfully. It worked alright until one day when I wanted to sell the phone and a customer wanted to buy it on short notice, and I rushed to delete my files from the phone, but I destroyed the Android... I connected it to my laptop and shift-deleted some system files.... since then, the phone is delaying when trying to unlock (if i lock it now and try to unlock it a few times, it opens harder and harder), when I'm using apps it continously shows that some .com processess stopped working, and if I try to turn on the bluetooth, the phone instantly freezes and restarts itself.
I tried reinstalling two original ROMs, (version 4.1.2) successfully, but the data on the phone&the system problems remain the same.
I'd like to know how can I make a hard reset, meaning in deleting all the files&settings as it was brand new, just to clear everything, like clearing CMOS. I also think the recovery mode is damaged and I'd like to fix it somehow (if this is possible). The installation process I did for installing the custom ROM from XDA-devs was long and complicated, I had to do a lot of things... and I just want to get the phone fixed and restore to default (or even to fix bugs on this android version) its android, kernel & everything could be ,,reflashed''.
I'm willing to pay if someone helps me fix the problems and it really works. Thank you!

Can't fix Bugged custom ROM

I have a Galaxy S III GT-I9300 I bought in 2014. After three years, I downloaded a custom ROM from xda-developers (android 4.3 is all I remember about it) and installed it successfully. It worked alright until one day when I wanted to sell the phone and a customer wanted to buy it on short notice, and I rushed to delete my files from the phone, but I destroyed the Android... I connected it to my laptop and shift-deleted some system files.... since then, the phone is delaying when trying to unlock (if i lock it now and try to unlock it a few times, it opens harder and harder), when I'm using apps it continously shows that some .com processess stopped working, and if I try to turn on the bluetooth, the phone instantly freezes and restarts itself.
I tried reinstalling two original ROMs, (version 4.1.2) successfully, but the data on the phone&the system problems remain the same.
I'd like to know how can I make a hard reset, meaning in deleting all the files&settings as it was brand new, just to clear everything, like clearing CMOS. I also think the recovery mode is damaged and I'd like to fix it somehow (if this is possible). The installation process I did for installing the custom ROM from XDA-devs was long and complicated, I had to do a lot of things... and I just want to get the phone fixed and restore to default (or even to fix bugs on this android version) its android, kernel & everything could be ,,reflashed''.
I'm willing to pay if someone helps me fix the problems and it really works. Thank you!

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