Bad signal after downgroade from jb to ics - Galaxy S III Q&A, Help & Troubleshooting

Hello friends
I downgraded my galaxy s3 from 4.1.2 to 4.0.4 since this moment my signal is very bad and the batery drain is awesome because he is looking for signal every time
What should i do?
waiting some answer

pollopelao said:
Hello friends
I downgraded my galaxy s3 from 4.1.2 to 4.0.4 since this moment my signal is very bad and the batery drain is awesome because he is looking for signal every time
What should i do?
waiting some answer
Click to expand...
Click to collapse
If you are rooted download the GetRIL app, to check your modem and RIL match.

delsus said:
If you are rooted download the GetRIL app, to check your modem and RIL match.
Click to expand...
Click to collapse
i am not rooted

pollopelao said:
i am not rooted
Click to expand...
Click to collapse
Post questions in Q&A
Flash stock firmware .
Take your phone to a service centre .
jje

Why would you want to downgrade ? JB 4.1.2 is way better than 4.0.4.

Related

Network Carrier problem

hey, guys
I work at KSA
When I was using ICS 4.0.4 Pakistan , when any one call me he hear "the phone you calling is switched off, try again later" and my phone in open at all time.
3 days ago, I downgrade to ICS 4.0.3 KSA till now no problem in receiving calls.
Is this problem from rom, as Modem in each rom different from country to other?
Now I want to flash Cynogonmode rom 10.1, Will I face this problem again?
thank you Guys
Up Please,
mohammedkhairy said:
hey, guys
I work at KSA
When I was using ICS 4.0.4 Pakistan , when any one call me he hear "the phone you calling is switched off, try again later" and my phone in open at all time.
3 days ago, I downgrade to ICS 4.0.3 KSA till now no problem in receiving calls.
Is this problem from rom, as Modem in each rom different from country to other?
Now I want to flash Cynogonmode rom 10.1, Will I face this problem again?
thank you Guys
Click to expand...
Click to collapse
it all depends on the Modem that comes along with the Firmware and will be diff for diff regions ma8
Just check the modem that u have (with ICS 4.0.3) for now which is wrk'ng fine and note it down.
After flashing CM10.1 if u face any netwrk issue then u can use that modem again(which u can find in the link HERE)
Sun90 said:
it all depends on the Modem that comes along with the Firmware and will be diff for diff regions ma8
Just check the modem that u have (with ICS 4.0.3) for now which is wrk'ng fine and note it down.
After flashing CM10.1 if u face any netwrk issue then u can use that modem again(which u can find in the link HERE)
Click to expand...
Click to collapse
thank you man.
I posted this thread in S2G forum but it moved to here, so I'm sorry my phone is GT-I9100G
but the link you provided don't contain any GT-I9100G !
and from where can i find my modem type?
http://forum.xda-developers.com/showthread.php?t=1754158 [Bootloader] [Official Stock Firmwares , Kernels & Modems For i9100g]
mohammedkhairy said:
thank you man.
I posted this thread in S2G forum but it moved to here, so I'm sorry my phone is GT-I9100G
but the link you provided don't contain any GT-I9100G !
and from where can i find my modem type?
Click to expand...
Click to collapse
Oh i see, my mistake for linking I9100 modems ma8, sorry for the same
do please check in the section meant for I9100G, link below for it
Galaxy S II I9100G Android Development
Sun90 said:
Oh i see, my mistake for linking I9100 modems ma8, sorry for the same
do please check in the section meant for I9100G, link below for it
Galaxy S II I9100G Android Development
Click to expand...
Click to collapse
Where can I find Modem version of my phone??
where can i download it?
mohammedkhairy said:
Where can I find Modem version of my phone??
where can i download it?
Click to expand...
Click to collapse
Here u go 'Modem Collection by Neerajganga for I9100G'
for the present Modem on ur phone goto Settings>About phone and see there the Baseband
Thank you, Guys
another important question not related to the address.
when I searched for how to install CWM iny my phone S2G there are many ways and lot of bricked phones in issue
http://forum.xda-developers.com/showthread.php?t=1814801
there are ways to flash via odin other via recovery
I wan't you to illustrate to me the perfect way to do that without risks and not increase binary count and the files I'll use in detail ....<<<phone isn't rooted>>
Can i install CWM and custom rom without rooting
If not what is the first root then CWM or CWM then root.
I searched alote.
thank you guys!

Need a Guide

Hi guys,
I recently buy a Galaxy s2 GT-i9100G. I just want to know that my current android version is 4.1.2 its france based. The update avlb for my country is 4.0.4 so i just want to know that can i flash 4.0.4 modem on my current 4.1.2 version ??? the main reason for flashing is radio.
bump! need a fast reply.
Ranker said:
Hi guys,
I recently buy a Galaxy s2 GT-i9100G. I just want to know that my current android version is 4.1.2 its france based. The update avlb for my country is 4.0.4 so i just want to know that can i flash 4.0.4 modem on my current 4.1.2 version ??? the main reason for flashing is radio.
Click to expand...
Click to collapse
Try to flash any modem of 4.1.2 of other region.
Absolutely do not bump threads on here after one hour. This isn't your personal tech support hotline :-|| Also, get some damn manners.
Jeetu said:
Try to flash any modem of 4.1.2 of other region.
Click to expand...
Click to collapse
Modem which i need is only available in ics rom. Before S2 i got nexus 3 and i flashed ics radio on my 4.3 jb and that works great so is it possible to do the same on s2?
MistahBungle said:
Absolutely do not bump threads on here after one hour. This isn't your personal tech support hotline :-|| Also, get some damn manners.
Click to expand...
Click to collapse
Really sorry for that won't happened again that was urgent that's why I did.

[Q] downgrade to 4.1.2 stock?

Hello guys actully i would like to ask that i have galaxy s3 i9300 recently i update it with 4.3 jb rom but in this rom loads of bugs some time when i turn off screen then bck it on its takes ,2 ,3 secounds to onn nowi want downgrade it to 4.1.2 jb stock rom i hve read on sites mostly had downgrade it they all mentioned that after downgrade it say no registerd on network please help me out what should i do i want go bck old 4.1.2 rom cos i recently month ago bought s3 brand new dont wana brick it myself thnx ?
Rash732 said:
Hello guys actully i would like to ask that i have galaxy s3 i9300 recently i update it with 4.3 jb rom but in this rom loads of bugs some time when i turn off screen then bck it on its takes ,2 ,3 secounds to onn nowi want downgrade it to 4.1.2 jb stock rom i hve read on sites mostly had downgrade it they all mentioned that after downgrade it say no registerd on network please help me out what should i do i want go bck old 4.1.2 rom cos i recently month ago bought s3 brand new dont wana brick it myself thnx ?
Click to expand...
Click to collapse
Wrong Section!!
But you can downgrade to XXEMG4.
Rash732 said:
Hello guys actully i would like to ask that i have galaxy s3 i9300 recently i update it with 4.3 jb rom but in this rom loads of bugs some time when i turn off screen then bck it on its takes ,2 ,3 secounds to onn nowi want downgrade it to 4.1.2 jb stock rom i hve read on sites mostly had downgrade it they all mentioned that after downgrade it say no registerd on network please help me out what should i do i want go bck old 4.1.2 rom cos i recently month ago bought s3 brand new dont wana brick it myself thnx ?
Click to expand...
Click to collapse
One you are posting in the wrong forum.
Two you need to read the 4.3 threads and read the faqs and guided before asking repetitive questions .
help me out
HtcDesire2 said:
Wrong Section!!
But you can downgrade to XXEMG4.
Click to expand...
Click to collapse
plz help me how can i do acttualy i dont realy knw where should i send my question worried about my s3 ?
Rash732 said:
plz help me how can i do acttualy i dont realy knw where should i send my question worried about my s3 ?
Click to expand...
Click to collapse
Download XXEMG4 firmware from sammobile and flash it using ODIN (Same way you did for 4.3)
Did you do a nandroid bk up? Restore that? When you flashed 4.3 it's changes efs. So to fix network simply flash mg4 or newer modem. I use mj3 modem that comes with 4.3 mg9 firmware.
Please refer and use help threads which have already been made on these topics.
Moved to Q&A.
h
andrewwright said:
Did you do a nandroid bk up? Restore that? When you flashed 4.3 it's changes efs. So to fix network simply flash mg4 or newer modem. I use mj3 modem that comes with 4.3 mg9 firmware.
Click to expand...
Click to collapse
i just simply went settings about phone in software update and took update from thr then install i dont flash it via odin ?
hlp
a.cid said:
Please refer and use help threads which have already been made on these topics.
Moved to Q&A.
Click to expand...
Click to collapse
where from i can download that modem file and how to install it ?
No actually I took the updates from about phone software updates I don't use odin etc so I don't back up etc
Now what should I do for downgrade ?????
Sent from my GT-I9300 using xda app-developers app

[Q] Downgrading Galaxy SIII (GT-I9300) from 4.3 to 4.1.2

Dear friends I recently installed I9300XXUGMJ9_I9300VFGGMJ5_VDI_2.tar (Android 4.3) on my Galaxy S III International version. But as we know the firmware is full of messy bugs I just installed the old 4.1.2 firmware from Samsmobile and kies too.. But the problem is that I can't access my network. There seems to be only emergency calls... Can you guys get me this problem fixed? Is there any way to downgrade my phone to old 4.1.2 Jelly Bean. I desperately require some help.
Please use search question asked daily .
Please read faqs and guides .
Please post in the correct forum .
Basics read first.
http://forum.xda-developers.com/showthread.php?t=2344125
Critical you read the first two posts .
Install neatrom 5.4 working great
Sent from my GT-I9300 using xda premium
ozzyblack said:
Install neatrom 5.4 working great
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Provide the link please. Is it 4.1.2?
yes ..u have to flash modem
featherknox said:
Dear friends I recently installed I9300XXUGMJ9_I9300VFGGMJ5_VDI_2.tar (Android 4.3) on my Galaxy S III International version. But as we know the firmware is full of messy bugs I just installed the old 4.1.2 firmware from Samsmobile and kies too.. But the problem is that I can't access my network. There seems to be only emergency calls... Can you guys get me this problem fixed? Is there any way to downgrade my phone to old 4.1.2 Jelly Bean. I desperately require some help.
Click to expand...
Click to collapse
flash this modem xxemj4.....google it.....or u can try imperium 4.1.2 rom
try Gorgoid 2.7a. MJ2 firmware with MJ1 modem. i flashed over CM11 and all good.
http://forum.xda-developers.com/showthread.php?t=2172299
Thanks
ozzyblack said:
Install neatrom 5.4 working great
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Thanks dear, I have installed NeatRom Full.
The lag in the lockscreen has gone away so far... Though there the UI is still the same...
It feels as if no change has been made at all....
Looking For 4.1.2
In fact I was looking for a solution to switch back to Custom 4.1.2 as it was the perfect ROM so far for me.
I have downloaded it from Sammobile but after Installing it via Odin I am unable to see any network and the Phone's IMIE is changed. I would greatly appreciate anyone to come up with solution for that....
Thanks everyone for being so kind...
featherknox said:
In fact I was looking for a solution to switch back to Custom 4.1.2 as it was the perfect ROM so far for me.
I have downloaded it from Sammobile but after Installing it via Odin I am unable to see any network and the Phone's IMIE is changed. I would greatly appreciate anyone to come up with solution for that....
Thanks everyone for being so kind...
Click to expand...
Click to collapse
read JJEgan's response.
DO IT!
I had the same problem, and all I did was to get to cm 10.2 before moving back to 4.1.2 stock
Sent from my GT-I9300 using xda app-developers app
Was it helpful?
thunderror said:
I had the same problem, and all I did was to get to cm 10.2 before moving back to 4.1.2 stock
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
I also tried to install the CM via its official Windows Application. When it completed there was no network again... Can you provide me the link of the ROM that you installed? Is it Zipaligned?
@featherknox
Correct me if i'm wrong but maybe u have a problem with efs partition from downgrading unto lower version of android..
here are some post that some of the users have solved their problem..
http://forum.xda-developers.com/showpost.php?p=47524551&postcount=1148
let us know if it works to you..
Thanks
Warrenforfree said:
@featherknox
Correct me if i'm wrong but maybe u have a problem with efs partition from downgrading unto lower version of android..
here are some post that some of the users have solved their problem..
http://forum.xda-developers.com/showpost.php?p=47524551&postcount=1148
let us know if it works to you..
Click to expand...
Click to collapse
Thank you very much.. I am going to give it a try.... Hope it works...
Problem Solved
Dear guys thanks for your time and the help...
With suggestion of a good mate, I am finally able to go back to 4.1.2.....
All I had to do was just Install the Patched Modem MG4
<b> https://www.dropbox.com/s/geispctijpxqjms/Patched_Modem_I9300XXEMG4.zip </b>
Wow,, I am so happy to get rid of that stupid 4.3
featherknox said:
Dear friends I recently installed I9300XXUGMJ9_I9300VFGGMJ5_VDI_2.tar (Android 4.3) on my Galaxy S III International version. But as we know the firmware is full of messy bugs I just installed the old 4.1.2 firmware from Samsmobile and kies too.. But the problem is that I can't access my network. There seems to be only emergency calls... Can you guys get me this problem fixed? Is there any way to downgrade my phone to old 4.1.2 Jelly Bean. I desperately require some help.
Click to expand...
Click to collapse
Check your IMEI number, wheather it was changed to 0049XXXX - I have had the same problem. I downloaded from Sammobile firmware v4.3 and flash your phone with odin. My IMEI and network connection was restored. Looks like Samsung does not like us to downgrade the firmwares.
Problem Solved
Peter1234 said:
Check your IMEI number, wheather it was changed to 0049XXXX - I have had the same problem. I downloaded from Sammobile firmware v4.3 and flash your phone with odin. My IMEI and network connection was restored. Looks like Samsung does not like us to downgrade the firmwares.
Click to expand...
Click to collapse
I have downgraded my Phone. Check the solution into my New Thread!!!!!
http://forum.xda-developers.com/showthread.php?p=47555014#post47555014
Peter1234 said:
Check your IMEI number, wheather it was changed to 0049XXXX - I have had the same problem. I downloaded from Sammobile firmware v4.3 and flash your phone with odin. My IMEI and network connection was restored. Looks like Samsung does not like us to downgrade the firmwares.
Click to expand...
Click to collapse
Its not a problem if users care to read the faqs and guides first .
Solution.....
Hello guys....
I am very thankful to the xda forum and all the members who helped me to get through a serious problem..
Recently I installed 4.3 Leaked version on my GT-I9300 and the ROM proved to be worst ROM of life. So I decided to go back to 4.1.2.
I installed the custom ROM via Odin but I confronted a serious issue, when I was finished the installation I found that there was no network at all... Samsung's official told me that it is impossible to reverse the Android version...
I had no clue what to do. I flashed many ROMs but no solution at all. My IMIE was also kinda jumbled..
Many guys said it is EFS issue... But it is not EFS issue...
It is all because of different Modem issue.. all you need to do is just install a clean custom ROM from http://www.sammobile.com/firmwares/2/ and Install the patched modem... you are done..
So here is the solution:
1. Download your desired CUSTOM ROM for your Country from Sammobile...
Link http://www.sammobile.com/firmwares/2/
2. Install the ROM via Odin
3. Root it and Install your favorite recovery.
4. Install the Patched MG4 Modem Zip in Recovery Mode. Link https://www.dropbox.com/s/geispctijp...9300XXEMG4.zip
You are done....
This problem is all about MODEM version, so I don't think if EFS tricks are involved here.....
Finally credits go to all the XDA Members who put their heart and soul to present all the required guidance for me to be able to downgrade to lower Android Version.. I have only compiled the whole stuff into a single thread....
Thanks,,,
Plenty of solutions....
JJEgan said:
Its not a problem if users care to read the faqs and guides first .
Click to expand...
Click to collapse
Dear sir,
Actually the problem is not finding the solutions but finding the right solution.
Worth members of XDA Forum post a lot of solutions for a particular problem and thus newbies like me get even more confused... So it definitely takes some time for us to come to a point when we are able to get the desired results.
Sometimes, we are not able to clarify our queries.....
As in my problem only a Modem was required while I was looking for EFS solutions!
After Flashing the MG4 modem my battery life has become worst. I don't know if it is because of the Modem.. but whenever my phone is on airplane mode then the battery remains at the same percentage but while on network my battery keeps on draining without even texting or calling
Sent from my GT-I9300 using XDA Premium 4 mobile app

[SOLVED]how to change from ICS (4.0.4) to Jellybean

im experiencing abnormal cell standby in my samsung galaxy s3 which it consumes or drains my battery on lock/sleep mode. So i want to upgrade my 4.0.4 ICS to jelly bean.
Im connected to Wifi and there is no software update.
i bought this phone 2nd hand and this s3 is already have CWM v3.60 and Super SU installed.
i would like to ask how to upgrade my 4.0.4 Ice cream sandwich to a Jelly Bean. By the way im a noob to this. But i already did some updates/ changes in my past cellphone like my grand quattro like doing some cwm recovery, flashing with odin and rooting which i successfully followed with this guide:
http://forum.xda-developers.com/showthread.php?t=2494471
please help me. thanks in advance for your help.
BennyZars said:
im experiencing abnormal cell standby in my samsung galaxy s3 which it consumes or drains my battery on lock/sleep mode. So i want to upgrade my 4.0.4 ICS to jelly bean.
Im connected to Wifi and there is no software update.
i bought this phone 2nd hand and this s3 is already have CWM v3.60 and Super SU installed.
i would like to ask how to upgrade my 4.0.4 Ice cream sandwich to a Jelly Bean. By the way im a noob to this. But i already did some updates/ changes in my past cellphone like my grand quattro like doing some cwm recovery, flashing with odin and rooting which i successfully followed with this guide:
http://forum.xda-developers.com/showthread.php?t=2494471
please help me. thanks in advance for your help.
Click to expand...
Click to collapse
Flashing roms in CWM is same in all phones...
If you looking for an AOSP roms, you can try SlimBeans... I use it and its really smooth and fast and low battry drain
If you Looking for Samsung base Roms, Try Wanam Lite or Android Revolution HD...
there is lots of note 3 ported roms but i found most of them laggy and unstable...
k2evil said:
Flashing roms in CWM is same in all phones...
If you looking for an AOSP roms, you can try SlimBeans... I use it and its really smooth and fast and low battry drain
If you Looking for Samsung base Roms, Try Wanam Lite or Android Revolution HD...
there is lots of note 3 ported roms but i found most of them laggy and unstable...
Click to expand...
Click to collapse
Wat do u expect from a rom tat has apps tat are programmed to run in 3 gbs of ram compared to our 1 gb.
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you
JellyYogurt said:
Wat do u expect from a rom tat has apps tat are programmed to run in 3 gbs of ram compared to our 1 gb.
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you
Click to expand...
Click to collapse
I know and i expect lag, unstability and Lots of FCs...
k2evil said:
I know and i expect lag, unstability and Lots of FCs...
Click to expand...
Click to collapse
ok thank you guys for your help and answer. but for now i just want to stick to the official Jellybean by samsung..
is it ok to update to 4.3 Jelly bean if i have a 4.0.4 firmware with CWM and SuperSU installed?.
can anyone help me and show me a noob guide on how to update my 4.0.4 to Jellybean 4.3 the stock official one?.
thanks in advance for your help..
STICKYS
http://forum.xda-developers.com/showthread.php?t=2344125
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Downgrade and network problems .
http://forum.xda-developers.com/showthread.php?t=2531221
Phone Freezes
http://forum.xda-developers.com/showthread.php?t=2133401
Sudden Death .
http://forum.xda-developers.com/showthread.php?t=2091045
RETURN TO STOCK
http://forum.xda-developers.com/showthread.php?t=2323847
JJEgan said:
STICKYS
http://forum.xda-developers.com/showthread.php?t=2344125
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Downgrade and network problems .
http://forum.xda-developers.com/showthread.php?t=2531221
Phone Freezes
http://forum.xda-developers.com/showthread.php?t=2133401
Sudden Death .
http://forum.xda-developers.com/showthread.php?t=2091045
RETURN TO STOCK
http://forum.xda-developers.com/showthread.php?t=2323847
Click to expand...
Click to collapse
thanks jjegan for the links its very informative. wow:good:
*edited*
Another Question
i just read some of it very fast, and i just looked for the information that i need for now. Any way i can update my 4.0.4 ICS to Jelly Bean 4.3 through odin.
may i ask where can i find the stock rom 4.3 Jelly Bean and a noob tutorial on how to flash it with Odin. I choose Odin instead of Kies because i don't want to unroot my s3.. (im also currently looking for the answer through google fyi)
ok now i prfer the 4.1.2 jelly bean stock rom for s3 any one has a link of that rom?
BennyZars said:
thanks jjegan for the links its very informative. wow:good:
*edited*
Another Question
i just read some of it very fast, and i just looked for the information that i need for now. Any way i can update my 4.0.4 ICS to Jelly Bean 4.3 through odin.
may i ask where can i find the stock rom 4.3 Jelly Bean and a noob tutorial on how to flash it with Odin. I choose Odin instead of Kies because i don't want to unroot my s3.. (im also currently looking for the answer through google fyi)
ok now i prfer the 4.1.2 jelly bean stock rom for s3 any one has a link of that rom?
Click to expand...
Click to collapse
http://www.sammobile.com/firmwares/
Search GT-I9300 and find the one u want.
Heres the odin flash guide.
http://forum.xda-developers.com/showthread.php?t=1671969
JellyYogurt said:
http://www.sammobile.com/firmwares/
Search GT-I9300 and find the one u want.
Heres the odin flash guide.
http://forum.xda-developers.com/showthread.php?t=1671969
Click to expand...
Click to collapse
may i ask what are the differences of each firmware from each countries listed there?. are they all the same?.
my samsung galaxy s3 is made in Hongkong (color purple) GT19300. but Im from the Philippines. my samsung galaxy is not sim locked .i can insert any sim that i want. is it ok to choose the US firmware instead?. is it ok not to choose a firmware from hongkong because i can't understand chinese languange.
.
BennyZars said:
may i ask what are the differences of each firmware from each countries listed there?. are they all the same?.
my samsung galaxy s3 is made in Hongkong (color purple) GT19300. but Im from the Philippines. my samsung galaxy is not sim locked .i can insert any sim that i want. is it ok to choose the US firmware instead?. is it ok not to choose a firmware from hongkong because i can't understand chinese languange.
.
Click to expand...
Click to collapse
I have flashed lots of official roms, but i didn't see any important differences between different countries roms... Just some language features...
I'm persian but i flashed MK6 rom that is for Europe, I've got no problem... I can even type Persian...
For 4.3 rom, you've got just few choices and best of them is MK6... The other 4.3 updates have a lots of bugs but MK6 is almost bug free rom...
k2evil said:
I have flashed lots of official roms, but i didn't see any important differences between different countries roms... Just some language features...
I'm persian but i flashed MK6 rom that is for Europe, I've got no problem... I can even type Persian...
For 4.3 rom, you've got just few choices and best of them is MK6... The other 4.3 updates have a lots of bugs but MK6 is almost bug free rom...
Click to expand...
Click to collapse
ok thanks a lot for that. ill just choose MK6 then. :good:
by the way, may i ask if we can still quick root in mk6 4.3 jelly bean?
will it work? http://forum.xda-developers.com/showpost.php?p=33305792&postcount=3
GT-I9300: CF-Auto-Root-m0-m0xx-gti9300.zip will this work?
Thank you guys. i updated my 4.0.4 to 4.3 JellyBean Swiz version. now to root this phone.. ^_^
BennyZars said:
Thank you guys. i updated my 4.0.4 to 4.3 JellyBean Swiz version. now to root this phone.. ^_^
Click to expand...
Click to collapse
Your welcom :good:
Yes... Cf-Root works on MK6
k2evil said:
Your welcom :good:
Yes... Cf-Root works on MK6
Click to expand...
Click to collapse
thanks for that additional important info. downloading it now. :good:

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