At 40% battery or below I suddenly lose signal. Doesn't come back on even when toggling airplane mode. Only comes back after a reboot.
Don't know if it's firmware or ROM related. I've tried 7.3.2 - 7.4.6 firmware, still happens. Happens on all the Nougat(haven't tried any other versions not even Miui) ROMs I've tried(NOS, AOSiP, Pure Nexus)
bloodytolits said:
At 40% battery or below I suddenly lose signal. Doesn't come back on even when toggling airplane mode. Only comes back after a reboot.
Don't know if it's firmware or ROM related. I've tried 7.3.2 - 7.4.6 firmware, still happens. Happens on all the Nougat(haven't tried any other versions not even Miui) ROMs I've tried(NOS, AOSiP, Pure Nexus)
Click to expand...
Click to collapse
1) Full wipe system, data, cache, dalvik, internal storage and format with must use type "yes".
2) install firmware and ROM.
kounir said:
1) Full wipe system, data, cache, dalvik, internal storage and format with must use type "yes".
2) install firmware and ROM.
Click to expand...
Click to collapse
I always do that when flashing(I get OCD even though I know some parts aren't necessary sometimes). But problem still exist. Don't know if it's because of auto select network or something. I think there's only 1 time when signal isn't lost for 1 day. I just have to live with one reboot a day.
I'm also facing this issue. This happens every time to me no matter what my battery percentage is, i also flashed all kinds of miui roms even the oldest lollipop roms, but the issue still persist. Rebooting the phone only brings back network for sometime ( 10 minutes approx.). I also tried the same sim card on different phones, and it worked good. Also i have a second 3G sim which works nice, i think the problem is with 4G sims only.
If anyone has any fix please share.. :crying:
I was facing this issue few days back, now it's showing no sim card.
Only way I find to solve this issue is removing sim card, restore miui from fastboot, clean flash rom and insert sim again after first wizard setting
Related
Hi,
I'm facing this major problem with my handset.
When I insert a SIM card to my mobile, it registers with the network (VODAFONE IN) with signal strength of 12asu and then gradually decreases to 5asu and then 1asu when my phone shows no signal afterwards. The carrier is shown as Unknown and service as out of service.
If I put the same SIM in another phone, it works. So no problem with the SIM or Network.
I have tried the following:
1) Flashed various modems
2) Flashed various ROMS (CM9, CM10, Official Stock)
3) Did complete WIPE. Factory Reset, Clear cache, Clear Dalvik cache, Format /system
4) I also restored by efs to a backup I had of my efs(taken when I first got the phone in 2011).
5) Also used Repair Galaxy S2 app which basically fixes RW permissions of the EFS folder.
6) Also used EFS Pro to repair my .nav files
7) Also used GetRIL tool to check if the drivers are matching.
Even after doing everything, the problem is same. When I first insert the sim card, it gets signal for around 5 minutes and then suddenly it goes to 1asu with no signal forever. I also kept my phone as it is for one whole day, but nothing: my phone is unreachable and there's no signal.
I had never dropped my phone and possibility of any physical damage to the receiver is very low.
The only reason I can see is this:
I was on DilDroid ICS and everything was fine until one day, I went to Recovery and fixed permissions. (Btw, DilDroid ICS used Siyah kernal)
And I think that was the last thing I did after which my phone couldn't receive signals.
I think some files have been corrupted and even after factory reset etc. it remains and the next time I flash another ROM, the files are still there.
Can someone tell me a way to completely clean my galaxy s2 and then start off by flashing a new ROM.
Or any other solution. Kindly help.
deathfrag said:
Hi,
I'm facing this major problem with my handset.
When I insert a SIM card to my mobile, it registers with the network (VODAFONE IN) with signal strength of 12asu and then gradually decreases to 5asu and then 1asu when my phone shows no signal afterwards. The carrier is shown as Unknown and service as out of service.
If I put the same SIM in another phone, it works. So no problem with the SIM or Network.
I have tried the following:
1) Flashed various modems
2) Flashed various ROMS (CM9, CM10, Official Stock)
3) Did complete WIPE. Factory Reset, Clear cache, Clear Dalvik cache, Format /system
4) I also restored by efs to a backup I had of my efs(taken when I first got the phone in 2011).
5) Also used Repair Galaxy S2 app which basically fixes RW permissions of the EFS folder.
6) Also used EFS Pro to repair my .nav files
7) Also used GetRIL tool to check if the drivers are matching.
Even after doing everything, the problem is same. When I first insert the sim card, it gets signal for around 5 minutes and then suddenly it goes to 1asu with no signal forever. I also kept my phone as it is for one whole day, but nothing: my phone is unreachable and there's no signal.
I had never dropped my phone and possibility of any physical damage to the receiver is very low.
The only reason I can see is this:
I was on DilDroid ICS and everything was fine until one day, I went to Recovery and fixed permissions. (Btw, DilDroid ICS used Siyah kernal)
And I think that was the last thing I did after which my phone couldn't receive signals.
I think some files have been corrupted and even after factory reset etc. it remains and the next time I flash another ROM, the files are still there.
Can someone tell me a way to completely clean my galaxy s2 and then start off by flashing a new ROM.
Or any other solution. Kindly help.
Click to expand...
Click to collapse
do a full wipe and install another rom and see
1) Wipe data/Factory reset
2) go to 'mounts and storage' and wipe data and system there.
3)wipe Cache partition as well as Dalvik in advance.
then install the rom zip file
and again do all wipes except system and then check for issue's
ps- before that try with a different netwrk sim on the phone and see if the issue persists or not
Sun90 said:
do a full wipe and install another rom and see
1) Wipe data/Factory reset
2) go to 'mounts and storage' and wipe data and system there.
3)wipe Cache partition as well as Dalvik in advance.
then install the rom zip file
and again do all wipes except system and then check for issue's
ps- before that try with a different network sim on the phone and see if the issue persists or not
Click to expand...
Click to collapse
Hi Sun90,
I've tried flashing different ROM after complete wipe. I also wiped system. But never wiped data. Doing it now.
-----
update:
I tried your approach, but still facing the same problem. Please help.
Hello everyone.
I got exactly the same problem. I had my I9100 for over a year. I flashed lots of roms. Now i got this problem. I cannot connect to the service of my carrier. I got realy bad connection or no connection at all. The sim works on different Galaxys and its not a problem with the apn and or my IMEI. Evereything is ok there.
what have I done so far:
flashed several roms
flashed several modems
went back to original rom
several whipes
Now I have a nice MP3 player with some WIFI at home
What im thinkin about could be the problem but I dont know how to fix it:
I think i got a wrong CSC and there is something rotten with my partitions...
deathfrag said:
Hi Sun90,
I've tried flashing different ROM after complete wipe. I also wiped system. But never wiped data. Doing it now.
-----
update:
I tried your approach, but still facing the same problem. Please help.
Click to expand...
Click to collapse
Aton88 said:
Hello everyone.
I got exactly the same problem. I had my I9100 for over a year. I flashed lots of roms. Now i got this problem. I cannot connect to the service of my carrier. I got realy bad service or no service at all. The sim works on different Galaxys and its not a problem with the apn.
what have I done so far:
flashed several roms
flashed several modems
went back to original rom
several whipes
Now I have a nice MP3 player with some WIFI at home
Click to expand...
Click to collapse
have u guys tried with a differnet netwrk's Sim other than the one ur into and checked for the same issue?
Sun90 said:
have u guys tried with a differnet netwrk's Sim other than the one ur into and checked for the same issue?
Click to expand...
Click to collapse
Haven't tried that, but what will that prove? My SIM works perfectly okay on different mobile.
Sun90 said:
have u guys tried with a differnet netwrk's Sim other than the one ur into and checked for the same issue?
Click to expand...
Click to collapse
yes i tried another networks's sim as well. sim was recognised. sim-pin ok. but no service/connection. on manual carrier choice the galaxy said something like connected to service. but there is no internet and if i try to make a call there is the "no service" popup again.
i dont think its a problem with the HW because sometimes i see the different carriers. i just cannot connect to them!
as I said before: I think its a SW problem around CSC and/or somethin is ****ed up with my phones partitions...
Aton88 said:
yes i tried another networks's sim as well. sim was recognised. sim-pin ok. but no service/connection. on manual carrier choice the galaxy said something like connected to service. but there is no internet and if i try to make a call there is the "no service" popup again.
i dont think its a problem with the HW because sometimes i see the different carriers. i just cannot connect to them!
Click to expand...
Click to collapse
That's true. If I sometime connect to my network, I can quickly make a call & for the duration of the call, it remains okay. Pretty strange. I can goto flight mode and then back and sometimes I get the signals back for around 2-3 minutes before again going to no signal.
@Aton88, Were you by any chance on Siyah kernal or DilDroid ROM or went outside India? Just asking. Trying to find a pattern here.
deathfrag said:
Haven't tried that, but what will that prove? My SIM works perfectly okay on different mobile.
Click to expand...
Click to collapse
rather trying to know whether it prove a thing' isn't of much importance compared to giving it a try and see for any hardware issue
Sun90 said:
rather trying to know whether it prove a thing' isn't of much importance compared to giving it a try and see for any hardware issue
Click to expand...
Click to collapse
That's true, I'll try that with my friend's SIM tomorrow. Sorry, I didn't mean to offend you.
deathfrag said:
That's true, I'll try that with my friend's SIM tomorrow. Sorry, I didn't mean to offend you.
Click to expand...
Click to collapse
yeh sure, give it a try
and by the way creating more threads for the same issue doesn't bring about any goodthing to u for sure, hence stick to the rules of XDA, rather than doing this and getting Infracted by the mods for the same
take my words this is for ur own good
Sun90 said:
yeh sure, give it a try
and by the way creating more threads for the same issue doesn't bring about any goodthing to u for sure, hence stick to the rules of XDA, rather than doing this and getting Infracted by the mods for the same
take my words this is for ur own good
Click to expand...
Click to collapse
Thanks for the advice. I shall make sure I don't create duplicate threads. Btw, I even checked if my phone is locked but it's not. Everything is OFF.
I even checked the validity of my IMEI and it seems to be valid.
I'm really running out of ideas to check what's wrong.
I tried a different provider's SIM and even that doesn't work.
Can someone tell me how to do a complete clean install.
Are these steps complete or any steps are missing:
1. Factory Reset
2. Clear cache
3. Clear Dalvik Cache
4. Clear Battery stats
5. Wipe /system
6. Wipe /data
Then Goto Odin: Flash the official Stock Firmware for India.
Am i missing anything? I want a complete WIPE, so that no previous corrupted files are present. Please help.
deathfrag said:
I tried a different provider's SIM and even that doesn't work.
Can someone tell me how to do a complete clean install.
Are these steps complete or any steps are missing:
1. Factory Reset
2. Clear cache
3. Clear Dalvik Cache
4. Clear Battery stats
5. Wipe /system
6. Wipe /data
Then Goto Odin: Flash the official Stock Firmware for India.
Am i missing anything? I want a complete WIPE, so that no previous corrupted files are present. Please help.
Click to expand...
Click to collapse
u can give it a try with those steps but no4 is not necessary
i have a similar problem.....in the about section my network is displayed correctly but under "service state" it says out of service... BUT the internet works fine....when i try to make a call it says "not registered on network" ...the sim works fine in other phones.....the IMEI is also fine.
heres what i have tried :
1) change sim card
2) change roms
3) go back to stock GB that phone came with
4)wipes (all)
now i think i messed up something with the ril cause i changed it and i think thats where the problem started.
i got backups of the efs but i dont wana go there unless absolutely sure that the problem is there.
(is there a way to i dont know like check the integrity of tue efs or something)
I'm having a similar problem with my s2
Sent from my X10i using xda premium
if someon could plz check this for me.
i went into the service mode menu *#197328640#..then option 2 which is version info ...then option 1 which is SW version....then option 1 which is READ IMEI ...now when i selected that it said IMEI :NOT SUPPORTED
i dont know if thats normal...so if someone could please try this and let me know..i would be extremely thankful
ok so i did a lil experiment :
i purposely messed up my IMEI to that generic one with lots of zeros ...and suprisingly the calling function is back and i can use the phone normally except ofcourse the fact that the IMEI is messed....
Then i restored to get my own IMEI ...and together with my IMEI ..the problem came back too....
(oh and once again if someone could plz confirm the thing i asked about in previous post thanks)
My imei says not supported "/
Sent from my X10i using xda premium
Network signal issues
Have you tried checking network operators and manually searching and selecting the Network provider?
also have you tried flashing a different radio ?
regards
Hello, guys. First of all, I'd like to apologize in advance for my bad english. If there is any part of the message that isn't very clear, please inform me so I can correct it.
Here's the deal: I've been using for some time the Jelly Bean Ressuction Remix Rom from Westcrip.
Since about a month and a half (since version 3.9, I believe), I've been getting some weird and random signal drops. Back then, I had to manually reboot my phone so the data connection would come back. At the time I thought it was because the rom was still a nightly build, not very stable, so I coped with it.
This problem has worsen considerably since one or two weeks ago: those "signal drops" have become more and more regular. And following the signal drop, the screen would flicker a little and then the phone would automatically turn off. When I turn the phone back on, the battery is almost depleted, even tho it was full right before the crash. Again I'd blame the RR from Westcrip (by the time I was using the version 3.1.0). When version 3.1.2 came out, I did a clean installation (wipe data/factory reset/format system partition/wipe cache and dalvik, etc), even changed the kernels (used both Dorimanx and Siyah), a lot of modems, and still got this same problem: signal drop (usually when the phone is under a relative amount of stress, like playing Angry Birds, browsing the web, and even while using whatsapp!!!) followed by the phone turning itself off.
I then thought: what the hell, the problem has to be with the rom, not my phone. Then, I tried installing different roms (Paranoid Android and Slim Bean), and still got the same results. If anything, the phone is rebooting even more often now than before. I can't use it for 15 straight minutes and I get that problem,
Since this has happened with all these different roms I dont believe its related specifically to any of those.
Another strange thing: this "signal drop" followed by the rebooting only happens when the phone is disconnected from any power source and being actively used by me. If I'm recharging it, for example, the phone wont reboot at all. Also, if it is over my desk but I'm not using it, the phone also wont reboot. However, if I take it out from the power source and starting using it, I'll get another reboot in about 5-10 minutes of use.
I searched the forum and didnt find anyone with a similar problem... have any of you guys seem this happen before? I'm beggining to think that my phone is gonna die on me anyday now.
Regards!!
Daimao1984 said:
Hello, guys. First of all, I'd like to apologize in advance for my bad english. If there is any part of the message that isn't very clear, please inform me so I can correct it.
Here's the deal: I've been using for some time the Jelly Bean Ressuction Remix Rom from Westcrip.
Since about a month and a half (since version 3.9, I believe), I've been getting some weird and random signal drops. Back then, I had to manually reboot my phone so the data connection would come back. At the time I thought it was because the rom was still a nightly build, not very stable, so I coped with it.
This problem has worsen considerably since one or two weeks ago: those "signal drops" have become more and more regular. And following the signal drop, the screen would flicker a little and then the phone would automatically turn off. When I turn the phone back on, the battery is almost depleted, even tho it was full right before the crash. Again I'd blame the RR from Westcrip (by the time I was using the version 3.1.0). When version 3.1.2 came out, I did a clean installation (wipe data/factory reset/format system partition/wipe cache and dalvik, etc), even changed the kernels (used both Dorimanx and Siyah), a lot of modems, and still got this same problem: signal drop (usually when the phone is under a relative amount of stress, like playing Angry Birds, browsing the web, and even while using whatsapp!!!) followed by the phone turning itself off.
I then thought: what the hell, the problem has to be with the rom, not my phone. Then, I tried installing different roms (Paranoid Android and Slim Bean), and still got the same results. If anything, the phone is rebooting even more often now than before. I can't use it for 15 straight minutes and I get that problem,
Since this has happened with all these different roms I dont believe its related specifically to any of those.
Another strange thing: this "signal drop" followed by the rebooting only happens when the phone is disconnected from any power source and being actively used by me. If I'm recharging it, for example, the phone wont reboot at all. Also, if it is over my desk but I'm not using it, the phone also wont reboot. However, if I take it out from the power source and starting using it, I'll get another reboot in about 5-10 minutes of use.
I searched the forum and didnt find anyone with a similar problem... have any of you guys seem this happen before? I'm beggining to think that my phone is gonna die on me anyday now.
Regards!!
Click to expand...
Click to collapse
Hey,
pls backup ur apps and then do this:
0) Do a nandroid Backup via recovery
-- backup and restore
-- backup to internal (or external) sd card
1) Download Rom
2) Put it on internal sd card
3) Go into recovery mode
4) DO A FULL WIPE!! (U won't loose ur backup on sd card [but u can copy it to PC, too, if u want])
-- wipe data/ factory reset
-- wipe cahe partition
-- advanced > wipe dalvik cache
-- mount and storage > format data/system/cache
5) Then flash Rom
-- install .zip from sd card > choose .zip from sd card
-- Select the downloaded Custom Rom and flash it
6) Then flash Gapps
-- install .zip from sd card > choose .zip from sd card
-- Select the downloaded Custom Rom and flash it
7) Recovery > wipe cache partition
8) Recovery > advanced > wipe dalvik cache
9) Then flash Dorimanx
-- install .zip from sd card > choose .zip from sd card
-- Select the downloaded Custom Rom and flash it
6) Reboot and u r done!
Links:
ROM: U should have already the newest one, or at least u know, where u find it.
Dorimanx Kernel
Gapps
Much success,
CHEERS
Hi, thanks a lot fot the help.
I did all the steps above and I'm still getting the same results...
Another thing to notice is that yhe phone gets really hot for apparently no reason at all (like booting up, running aLogcat and other minor apps), and when that happens, I usually get a signal drop (if the phone is plugged in it wont reboot, if its not, it will reboot).
Is there anything else I can try?
Updating: I've been restoring my old nandroid backups for the whole day to see if the problem had anything to do with Jelly Bean. Well, I've gone back to the old ICS days and every version of it had the same random and constant rebooting. Even versions that didn't have any problem before.
I'm beggining to think I have a hardware failure of some sort. Do any of you guys know what could cause this kind of hardware failure? Since the phone has been getting hot for no apparent reason, it seems to me its a problem with the SGS2 cooler. Is that even possible?
OK so I have this problem but only when using my backup battery. (Not official). When It gets around 30% it begins to make my screen flicker and loose signal and just die.
So maybe you haven't got an original (official) battery in your s2?
Sent from my Galaxy SII
I dont think I have an unofficial battery. Its the same battery that came with the phone (bought from Amazon), and also, mine says Samsung on the back. Dunno if its enough to assume its official. Is there another way to check if my battery is official?
Daimao1984 said:
Hi, thanks a lot fot the help.
I did all the steps above and I'm still getting the same results...
Another thing to notice is that yhe phone gets really hot for apparently no reason at all (like booting up, running aLogcat and other minor apps), and when that happens, I usually get a signal drop (if the phone is plugged in it wont reboot, if its not, it will reboot).
Is there anything else I can try?
Click to expand...
Click to collapse
Do u check if u r using the correct Roms for u phone? (i9100, i9100p, i9100g,etc)
CHEERS
Send from my SGSII-i9100, running RootBox nightly with Dorimanx Kernel.
Hi I am also facing the same problem. Mobile is getting hot near the camera lens.
I know there has been a million posts about this issue and I tried all the solutions. Different roms and kernels, factory resets, changing usb, battery calibrations through different methods all with no effect. In frustration I was ready to toss my s2 in the garbage but before I did I decided to try something else (links below) since I figured I had nothing to lose.
It works!! for me anyway. I removed the IC. Didn't replace just removed and my phone now works perfectly. Charges, doesnt overheat. I was reaching battery temps of 80C within a few minutes of turning the phone on before. It was even overheating while turned off! No more warnings or charging paused. So if you have nothing to lose and are ready to toss your S2 like me try this.
forum.gsmhosting.com/vbb/f258/samsung-galaxy-s2-i9100-short-circuit-solution-1537757/
and
samsunggalaxysforums.com/showthread.php/8912-Water-damage-overheating-u503-%28USB-OTG%29-and-Workaround?p=62780#post62780
I couldnt post outside links so please copy address into your browser
I fixed mine.
http://forum.xda-developers.com/showthread.php?p=41108791#post41108791
droiduzr2 said:
I fixed mine.
http://forum.xda-developers.com/showthread.php?p=41108791#post41108791
Click to expand...
Click to collapse
I tried that also. Didn't work for me
ennayhtac said:
I tried that also. Didn't work for me
Click to expand...
Click to collapse
When I was on ICS my phone ran without any problems.
I can't really remember but I think I had installed an app and it started making my phone go crazy. So I went to AOKP JB 4.2.2 and started having the high heat problem again.
So I removed an app that I had Vault and set playstore to update over wifi only.
I put the Siyah kernel. I did flash a few other modems and I had the same problem. I flashed current modem and all is fine.
Wipe your cache and dalvik cache too.
Try downloading your modem file again.
All I can say is that my battery can now last 3days (in 2g mode no data) but when I do turn on data it does not suck my battery down in 15 minutes.
*I did click on HSDP option and then turned it back on and off and back on again.
1. I would start with a clean basic ROM. Don't just wipe but format everything 2 times.
2. try different modems (I think this is where the problem is)
3. new kernel or different kernel
This phone is working great now.
droiduzr2 said:
When I was on ICS my phone ran without any problems.
I can't really remember but I think I had installed an app and it started making my phone go crazy. So I went to AOKP JB 4.2.2 and started having the high heat problem again.
So I removed an app that I had Vault and set playstore to update over wifi only.
I put the Siyah kernel. I did flash a few other modems and I had the same problem. I flashed current modem and all is fine.
Wipe your cache and dalvik cache too.
Try downloading your modem file again.
All I can say is that my battery can now last 3days (in 2g mode no data) but when I do turn on data it does not suck my battery down in 15 minutes.
*I did click on HSDP option and then turned it back on and off and back on again.
1. I would start with a clean basic ROM. Don't just wipe but format everything 2 times.
2. try different modems (I think this is where the problem is)
3. new kernel or different kernel
This phone is working great now.
Click to expand...
Click to collapse
Like I said tried everything. This fixed mine. Just sharing for others who have also tried everything. I did check the capacitor in question was the source of my problem first and there was extreme heat coming from it.
Im Argentinean first of all and I'd bought my new GS2 3 days ago on mercadolibre.com.ar (a site like ebay.com) to a guy that imports it from factory. After of almost 50 days of waiting, i did got my new mobile phone, when i got it i'd upgraded to JellyBean with the official samsung rom, and that's when the problems showed up, the top left corner come overheat turning off the device, over and over again. So after some failed testing I'd chosed to change the kernel to Siyah expecting some performance improve but it become kind of worst because when the screen blackout the device just reboot itself, but if i keep doing something on it nothing happens, just when the screen comes black.
So i guessed that it may was related to the kernel, so downloaded another official rom jelly bean, this one was a Pre-Release rom, that some time ago i'd installed on a friend's galaxy s2 and it worked fine (despite the increased battery drain). This wasn't any solution though, because it keeps rebooting when the screen comes black.
I did tested to turning on without the simcard and microsd card, with the same results.
Another fact is that if i left the music playing and turn of the screen with the power button, nothing happens, it works perfectly.
It seems that is some kind of trigger when the mobile actually suspend itself doing really nothing.
Now i dont know what to do, should i test some custome rom/kernel?? should i get the chances to use the warranty? (implies to send again the device to china i guess ¬¬)
Please help, and thanks in advance.
hackkpo said:
Im Argentinean first of all and I'd bought my new GS2 3 days ago on mercadolibre.com.ar (a site like ebay.com) to a guy that imports it from factory. After of almost 50 days of waiting, i did got my new mobile phone, when i got it i'd upgraded to JellyBean with the official samsung rom, and that's when the problems showed up, the top left corner come overheat turning off the device, over and over again. So after some failed testing I'd chosed to change the kernel to Siyah expecting some performance improve but it become kind of worst because when the screen blackout the device just reboot itself, but if i keep doing something on it nothing happens, just when the screen comes black.
So i guessed that it may was related to the kernel, so downloaded another official rom jelly bean, this one was a Pre-Release rom, that some time ago i'd installed on a friend's galaxy s2 and it worked fine (despite the increased battery drain). This wasn't any solution though, because it keeps rebooting when the screen comes black.
I did tested to turning on without the simcard and microsd card, with the same results.
Another fact is that if i left the music playing and turn of the screen with the power button, nothing happens, it works perfectly.
It seems that is some kind of trigger when the mobile actually suspend itself doing really nothing.
Now i dont know what to do, should i test some custome rom/kernel?? should i get the chances to use the warranty? (implies to send again the device to china i guess ¬¬)
Please help, and thanks in advance.
Click to expand...
Click to collapse
You should try custom rom. Try to Flash Neatrom or any stock custom rom.
Hope it solves your problem.
Sent from my iPhone using Tapatalk
Firstly, you need to verify that it's a genuine S2. Turn the phone off, take the battery out and post on here EXACTLY what you see on the sticker in the battery compartment.... Just don't post the IMEI number...
Sent from my GT-I9100 using xda app-developers app
Model: GT-I9100
SSN: -I9100GSMH
RATED: 3.7V ------- : 1000 mA
FCC ID: A3LGTI9100
MADE IN KOREA BY SAMSUNG
IMEI: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
S/N: R5XA73828F1
That's all, its seems original, right?
i'd just installed the last samsung official Rom, form nordic countrys, and it seems to work just fine. I'll keep updated if it goes wrong again. Im so happy.
EDIT: Ok so i just leave it chargin the battery and it reboot itself 3 times again and 1 time just it turned off. I didnt tried leave it without the charger because it didnt have any charge. So im in trouble again >.<
hackkpo said:
i'd just installed the last samsung official Rom, form nordic countrys, and it seems to work just fine. I'll keep updated if it goes wrong again. Im so happy.
EDIT: Ok so i just leave it chargin the battery and it reboot itself 3 times again and 1 time just it turned off. I didnt tried leave it without the charger because it didnt have any charge. So im in trouble again >.<
Click to expand...
Click to collapse
Go to recovery and do wipe data/ factory restet and wipe cache . Reboot . Phone will start working again.
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Jeetu said:
Go to recovery and do wipe data/ factory restet and wipe cache . Reboot . Phone will start working again.
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Ok since that post i'd installed cyanogenmod 10.1.3 with JB 4.2.2 and it rebooted itself like 4 times and finally it keeped on like 10 minutes now.
hackkpo said:
Ok since that post i'd installed cyanogenmod 10.1.3 with JB 4.2.2 and it rebooted itself like 4 times and finally it keeped on like 10 minutes now.
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Yes do the same what i posted above and then flash your rom again.
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Jeetu said:
Yes do the same what i posted above and then flash your rom again.
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Why would i reflash again? i dont get it
hackkpo said:
Why would i reflash again? i dont get it
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Because your phone is now in Bootloop.
Bootloops can occur pretty easily, it’s mainly caused because system files interfering with each other which causes instability and/or crashes at the boot sequence.
Think of system apps that are compiled incorrectly, permissions that are not set correctly, files from other devices and even an init.d script, everything is possible.
To find the cause of a bootloop you have to think about what you did before getting the bootloop.
Choose one of the following reasons that caused the bootloop for you and try out its solution.
– After flashing a new rom
If you flash a new (base)rom on your device it may not automatically wipe your dalvik-cache, This means your old dalvik-cache will be used for the new system files which would result in a bootloop, to fix this problem:
1. Start your phone in CWM Recovery
2. Go to Advanced
3. Choose “Wipe dalvik-cache”
4. Now go to “Mounts & Storage”
5. Choose “Wipe /cache”
6. Reboot your phone
Note: by wiping “/cache” and “dalvik-cache” you make sure it’s completely deleted, some roms use /data and some use /cache for the dalvik-cache
If the problems still exists after doing that, you could try to wipe your /data partition. before you do that first make a backup of your phone (in it’s current bootlooping state)
1. Start your phone in CWM Recovery
2. Now go to “Backup & Restore”
3. Choose “backup” (it may also be called “backup to internal/external sdcard)
When that’s done you are free to wipe /data, you can achieve this by doing:
1. Now go to “Mounts & Storage”
2. Choose “Wipe /data”
3. Choose “Wipe /cache”
4. Reboot your phone
If the rom still doesn’t boot correctly it’s probably the rom which isn’t working, contact the rom creator then and try an other rom for the meanwhile.
Jeetu said:
Because your phone is now in Bootloop.
Bootloops can occur pretty easily, it’s mainly caused because system files interfering with each other which causes instability and/or crashes at the boot sequence.
Think of system apps that are compiled incorrectly, permissions that are not set correctly, files from other devices and even an init.d script, everything is possible.
To find the cause of a bootloop you have to think about what you did before getting the bootloop.
Choose one of the following reasons that caused the bootloop for you and try out its solution.
– After flashing a new rom
If you flash a new (base)rom on your device it may not automatically wipe your dalvik-cache, This means your old dalvik-cache will be used for the new system files which would result in a bootloop, to fix this problem:
1. Start your phone in CWM Recovery
2. Go to Advanced
3. Choose “Wipe dalvik-cache”
4. Now go to “Mounts & Storage”
5. Choose “Wipe /cache”
6. Reboot your phone
Note: by wiping “/cache” and “dalvik-cache” you make sure it’s completely deleted, some roms use /data and some use /cache for the dalvik-cache
If the problems still exists after doing that, you could try to wipe your /data partition. before you do that first make a backup of your phone (in it’s current bootlooping state)
1. Start your phone in CWM Recovery
2. Now go to “Backup & Restore”
3. Choose “backup” (it may also be called “backup to internal/external sdcard)
When that’s done you are free to wipe /data, you can achieve this by doing:
1. Now go to “Mounts & Storage”
2. Choose “Wipe /data”
3. Choose “Wipe /cache”
4. Reboot your phone
If the rom still doesn’t boot correctly it’s probably the rom which isn’t working, contact the rom creator then and try an other rom for the meanwhile.
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No is not, the cellphone starts normal, and while im using it nothing wear happens, but when i left it the screen goes black and the device reboot itselfs. But now im seeing that doesnt happen anymore, i dont know why.
Still with cyanogenmod rom, i connected the phone to charge the battery, and i saw a tendency of reboots and turnings off while the percentaje comes to 100% and a increasing overheat on the left-top of the phone, i suspect that the problem may be related with the amount of charge from battery and the overheating... Hardware problem?
Well... After all this time my cellphone went through the argentinean official service of samsung and the tech guy told me that he couldn't do anything on my device because he tried installing a lot of samsung official roms and the device was still malfunctioning. So he gave up on it, so i'd tooked it to another service (non official this time) and that guy told me that it may be a non official device, so he wouldnt do nothing on it, because i couldnt get the hardware that possible was malfunctioning. So here im now, with the all money spent for nothing.
My question is, what can i do to know if is or isnt an ORIGINAL samsung device? Knowing that i'll choose how to proceed. Txs!
So,
I bought this phone on the day it was launched, its been more than 3 months and had no issue with the device. I rooted the phone , experimented with Xposed and other apps but for the past few days i was experiencing this strange problem. Cellular network was not running on my phone, i changed the sim, swithed the devices on/off several times , did everything i could do in the os, changing the mode to 3G from LTE and vica versa, etc etc .. but still no luck. The cellular network sometimes comes and goes. Then i opted for last resort which was to factory reset the phone, after resetting it the cellular network worked but i don't know if this is a permanent solution. If you have anything to add please share.
Regards,
Saransh
Sorry nothing much to share but i suspect you install some apps or did something to your rom so the network screwed. My suggestion is you nandroid backup every week (at least) so you can revert back when something happened.
Tried factory reset
I have tried factory reset but still having this issue. Maybe it's a hardware issue. I don't get it , everything was working fine few days ago then all of a sudden this **** happened.
SaranshVfx said:
I have tried factory reset but still having this issue. Maybe it's a hardware issue. I don't get it , everything was working fine few days ago then all of a sudden this **** happened.
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Maybe exposed screwed something. Get a microsd card with whatever rom you want in it. reboot to recover and try full format. insert the microsd after then flash a rom. see if it works
Rooted my phone with sudamod rom, Everything is working fine.