Can I change modem im my Samsung Galaxy S II I9100? - Galaxy S II Q&A, Help & Troubleshooting

Hi!
My current phone is:
Samsung Galaxy S II I9100 which is rooted.
ROM: RootBOX 1.5
kernel: Fluxi 3.0.36
current modem: XXLPR
My question would be, can I change the modem just like a random fleshable .zip ? Do I need to perform FULL WIPE? I tried to look up in the forum but only found solutions for non-rooted phones.
Please help
Regards,

Yes. Most modems are CWM flashable. Do a Google search & append XDA to your search terms ("SGS2 CWM modems", etc...use your imagination). Here's a link to a thread that has a bunch of modems to get you started.
Edit - No wipe, clear cache or clear Dalvik required when you flash a modem. Simply boot into CWRecovery, flash the modem, reboot. Done.

Dioktis said:
Hi!
My current phone is:
Samsung Galaxy S II I9100 which is rooted.
ROM: RootBOX 1.5
kernel: Fluxi 3.0.36
current modem: XXLPR
My question would be, can I change the modem just like a random fleshable .zip ? Do I need to perform FULL WIPE? I tried to look up in the forum but only found solutions for non-rooted phones.
Please help
Regards,
Click to expand...
Click to collapse
yes u can flash the zip files of modem thro recovery without any issue, and no need to do full wipe, and also the modem will not wipe anything on ur phone.
after flashing a modem please see it settles down by allowing it for a cpl of days
find some flashable zip collection in link below
Modem Collection

MistahBungle said:
Yes. Most modems are CWM flashable. Do a Google search & append XDA to your search terms ("SGS2 CWM modems", etc...use your imagination). Here's a link to a thread that has a bunch of modems to get you started.
Edit - No wipe, clear cache or clear Dalvik required when you flash a modem. Simply boot into CWRecovery, flash the modem, reboot. Done.
Click to expand...
Click to collapse
Sun90 said:
yes u can flash the zip files of modem thro recovery without any issue, and no need to do full wipe, and also the modem will not wipe anything on ur phone.
after flashing a modem please see it settles down by allowing it for a cpl of days
find some flashable zip collection in link below
Modem Collection
Click to expand...
Click to collapse
Thank you both for your quick replies!
Hmm now could you suggest me which one to choose? It seems there are so many of them... My main aim for this modem change is to save as much battery as possible.
Regards,

Dioktis said:
Thank you both for your quick replies!
Hmm now could you suggest me which one to choose? It seems there are so many of them... My main aim for this modem change is to save as much battery as possible.
Regards,
Click to expand...
Click to collapse
They all work differently depending on your location. One that works well for someone else may not work well for you. Try each one for a while to find one that works well for you.

Eventually I have downloaded the latest XXLPR modem.
Runs pretty good.
Thanks guys!

Uslpg is the best as per me
Sent from my GT-I9100 using Tapatalk 2

Sorry for reviving this old post but can I flash any SGS 2 modem on my phone?

slashragnarok said:
Sorry for reviving this old post but can I flash any SGS 2 modem on my phone?
Click to expand...
Click to collapse
NO, AFAIK if the modem is meant for s2 I9100G u cant flash it on ur s2 I9100 or its variants M/P/T etc

Sun90 said:
NO, AFAIK if the modem is meant for s2 I9100G u cant flash it on ur s2 I9100 or its variants M/P/T etc
Click to expand...
Click to collapse
Okay but all I9100 modems are "inter-flashable" right? Which brings me to the question, why flash another modem at all? I mean logically the stock modem is meant for my region and should be, at least theoretically, the best for my phone.

Theres nothing wrong with reviving old threads as its better than opening up new ones.
Youve just got to try out different modems and kernels and see how your phone performs with the permutations youve chosen.

Related

[q] Is there any modem for i9100g

Im finding a modem to flash thru cwm. as what im having now, seems very bad for my country (or maybe place), malaysia. so im wondering if someone can give me some points on new modems for i9100G.
or maybe, can i use the modem for i9100? will there any brick issues if i tried? thanks.
lukemanhakim said:
or maybe, can i use the modem for i9100? will there any brick issues if i tried? thanks.
Click to expand...
Click to collapse
Probably not easy to flash back original modem .
jje
There are loads of threads that have lots of different modems up for download. Just download one, put it on the Internal SD, and flash it with CWM. It's trial and error which one works best for you.
postfatal said:
There are loads of threads that have lots of different modems up for download. Just download one, put it on the Internal SD, and flash it with CWM. It's trial and error which one works best for you.
Click to expand...
Click to collapse
sure, i can do that. but i must be certain that it wont do any harm for my phone when trying to flash i9100 modem into i9100g. probably someone that is good into this matter would clear this to me?
thanks.

Got my new Galaxy S2 - How to root/install CWM?

Hello,
I just got my new Galaxy S2 and want to install the Resurrection Remix Rom (http://forum.xda-developers.com/showthread.php?t=1436854)
Since there are soo many topics and threads here, I can't even find the answer I'm looking for with the search bar, so I'm sorry to ask.
I want to know how to install CWM and this ROM, is there a guide somewhere? What's the best way to root it and install CWM?
It would be really nice if someone could post it.
Thanks a lot in advance!
Greezes,
Draygon
just get odin and then flash a rooted and cmw kernel.
Sent from my GT-I9100G using xda premium
Well, first thing to do is to get Odin like our friend already said, u can look here in forum for links, u will need the Odin 1.85
After that go to this thread
http://forum.xda-developers.com/showthread.php?t=1103399
Its Chainfire kernel, it Root and install CWM and Superuser basically.. he keeps it the most original as possible...
Attention ! Download the version that is compatible to ur ROM Version !
now go to odin, in PDA u add the .tar file from chainfire and select start. (If u dont know how to use Odin completelly, i suggest u to read something about first!)
After its complete the SGSII will restart and it will be rooted, now u can download the rom u want and flash it through CWM...
Remember to read FAQ first...
Thank you button if u like it ! =D
Acutally, the first thing you should do is confirm what model of the Galaxy SII you have, since there are over a dozen variants, some of which are specific to the US. I say this because this is your first post in the Galaxy SII forum, and a brief perusal of your posting history doesn't really give any clues as to your geographical location.
Look on the label under the battery.
Does it say "GT-i9100"?
If so, you're in the right place.
If not, you're in the wrong place, and flashing ANYthing for an i9100 will potentially brick your device.
I got a Galaxy S2 i9100.
Thanks a lot for your great replys,you guys are awesome!!
I know what to do now.
Draygon said:
I got a Galaxy S2 i9100.
Thanks a lot for your great replys,you guys are awesome!!
I know what to do now.
Click to expand...
Click to collapse
Welcome pal ! This Forum helped me for one year till now, its great to share some experience ! =D
Just have another question because I don't want to brick my new S2:
In this guide which Danpamio posted: http://forum.xda-developers.com/showthread.php?t=1103399
I have to look for the right ROM to flash via odin to my S2.
Mine got the "LP7" in the system settings info.
Now, which of there roms do I have to install? What's the difference?
CF-Root-SGS2_DX_XTC_LP7-v5.4-CWM5.zip
CF-Root-SGS2_XW_XEN_LP7-v5.4-CWM5.zip
Thanks in advance!
This is the safe way, just notice recovery is only there until you reboot, but root stays, still there are instructions how to unroot
http://forum.xda-developers.com/showthread.php?t=1501719
Draygon said:
Now, which of there roms do I have to install? What's the difference?
CF-Root-SGS2_DX_XTC_LP7-v5.4-CWM5.zip
CF-Root-SGS2_XW_XEN_LP7-v5.4-CWM5.zip
Thanks in advance!
Click to expand...
Click to collapse
If you read the entire thread you are referencing it clearly states:
CF-Root-SGS2_XX_OXA_KG1-v4.1-CWM4.zip
The XX and OXA identifiers are not that important. Usually a "KG1" kernel is a "KG1" kernel, and that is that. Sometimes (pretty rare) it happens there will be multiple different kernels with the same name in different firmwares, that are actually different. If this happens, they are usually only very minor changes and you should expect them to still be fully compatible. I include the "XX" and "OXA" identifiers so the very advanced users can deduce from which full firmware I have taken the kernel file.
Click to expand...
Click to collapse
That should answer your questions.

I need help with 2 Australian Galaxy S3

Hi. I have 2 australian galaxy s3. First one is on 4.1.2 TDUELL2 and the second one is on 4.0.4 TDUBLH1. I want to root both of them. The first one after getting updated to 4.1.2 wifi stopped working but i found a fix installing the wifi folder from 4.1.1 version. To that I need root though. So any help on how am I gonna root them both? Cause I couldn't sort it out my self.
jimskeet2002 said:
Hi. I have 2 australian galaxy s3. First one is on 4.1.2 TDUELL2 and the second one is on 4.0.4 TDUBLH1. I want to root both of them. The first one after getting updated to 4.1.2 wifi stopped working but i found a fix installing the wifi folder from 4.1.1 version. To that I need root though. So any help on how am I gonna root them both? Cause I couldn't sort it out my self.
Click to expand...
Click to collapse
What model number are the phones I9300 / I9305?
they are i9300t
I managed to root both of them. I know have a major problem. 1 of them had a problem with wifi. It couldnt connect. I read about a solution by copying the wifi folder from version 4.1.1. Tried that. It worked for once but after reboot it stopped. And now I can't even turn on the wifi. It gets stuck on Turning on... Do i have to reflash the rom again and if so how will i do that? It was stock rom on stock kernel. Only rooted. gt i9300t moder and build DUELL2.
Also can i flash a rom with different build over that? For example XXEMC2 that i have on my Greek galaxy s3?
I9300T rooting is the same as I9300 rooting, follow the guides of CF-Root 6.4 or CF-Autoroot. (I got a T model myself)
You can flash any I9300 rom also on the T model, therefore root is not 100% necessary. Full wipes are recommended for flashing different versions though.
chrismast said:
I9300T rooting is the same as I9300 rooting, follow the guides of CF-Root 6.4 or CF-Autoroot. (I got a T model myself)
Click to expand...
Click to collapse
I did root them. Now my problem is that on one of them wifi isn't working. Check my previous post again
jimskeet2002 said:
I did root them. Now my problem is that on one of them wifi isn't working. Check my previous post again
Click to expand...
Click to collapse
just saw it .
For wifi, try a stock ROM (flash it new incl. wipes etc.), or try a different kernel, whereas the stock kernel should always work.
chrismast said:
just saw it .
For wifi, try a stock ROM (flash it new incl. wipes etc.), or try a different kernel, whereas the stock kernel should always work.
Click to expand...
Click to collapse
Can you tell me how i will flash a new stock rom on it? where can i find the stock rom and can i flash a different build?
DUELL2 is the current.
jimskeet2002 said:
Can you tell me how i will flash a new stock rom on it? where can i find the stock rom and can i flash a different build?
DUELL2 is the current.
Click to expand...
Click to collapse
you can find (unrooted) stock roms for instance on sammobile.com or (rooted) stock roms here on XDA in the General section.
Easiest way to flash them is via Mobile Odin (gives you the option to keep root) or Odin (you will loose root but you can flash CF afterwards manually).
And yes you can flash any build that is made for the I9300/I9300T.
The only difference between both models is the frequency of the baseband (the T model is more optimized for 850mhz) whereas you even can use modems of the I9300 on the I9300T.
chrismast said:
you can find (unrooted) stock roms for instance on sammobile.com or (rooted) stock roms here on XDA in the General section.
Easiest way to flash them is via Mobile Odin (gives you the option to keep root) or Odin (you will loose root but you can flash CF afterwards manually).
And yes you can flash any build that is made for the I9300/I9300T.
The only difference between both models is the frequency of the baseband (the T model is more optimized for 850mhz) whereas you even can use modems of the I9300 on the I9300T.
Click to expand...
Click to collapse
What do you mean by modems? Soz if I sound noob but I am new to Galasy s3. My previous android was ideos x5 and i had a miui rom on it.
The phone will be used in greece. Do you suggest me flashing the XXEMC2 rom that i have on my Greek S3 atm? Is there any chance of bricking it if i flash that rom on it?
jimskeet2002 said:
What do you mean by modems? Soz if I sound noob but I am new to Galasy s3. My previous android was ideos x5 and i had a miui rom on it.
The phone will be used in greece. Do you suggest me flashing the XXEMC2 rom that i have on my Greek S3 atm? Is there any chance of bricking it if i flash that rom on it?
Click to expand...
Click to collapse
There is a difference between the ROM's firmware (basically your OS, e.g. XXEMC2) and the modem (basically the part which gives you the connection to the next mobile tower and is managing the frequencies, e.g. DUELL2).
It does not matter that much what ROM firmware you use as they are nearly identical in each country (here and there dif. apps due to providers) but more that you use a modem that delivers in the country you are in. Hence, I would first try the modems of your region (you can find a list of all modems in the General section's modem collection).
Regarding the risk of bricking: there is always a risk, no one can guarantee you anything , whereas if you follow the guides you should be fine.
chrismast said:
There is a difference between the ROM's firmware (basically your OS, e.g. XXEMC2) and the modem (basically the part which gives you the connection to the next mobile tower and is managing the frequencies, e.g. DUELL2).
It does not matter that much what ROM firmware you use as they are nearly identical in each country (here and there dif. apps due to providers) but more that you use a modem that delivers in the country you are in. Hence, I would first try the modems of your region (you can find a list of all modems in the General section's modem collection).
Regarding the risk of bricking: there is always a risk, no one can guarantee you anything , whereas if you follow the guides you should be fine.
Click to expand...
Click to collapse
Ok. Here is the deal. My greek galaxy s3 which i recently updated is XXEMC2. The galaxy s3 with the wifi problem is DUELL2 bought in australia from a friend but will be sent to greece for my brother. So i should flash XXEMC2 on it? I just download XXEMC2 from sammobile and flash it with odin? It doesn't matter that the XXEMC2 is for i9300 as fas as I understood from what u said. right?
jimskeet2002 said:
Ok. Here is the deal. My greek galaxy s3 which i recently updated is XXEMC2. The galaxy s3 with the wifi problem is DUELL2 bought in australia from a friend but will be sent to greece for my brother. So i should flash XXEMC2 on it? I just download XXEMC2 from sammobile and flash it with odin? It doesn't matter that the XXEMC2 is for i9300 as fas as I understood from what u said. right?
Click to expand...
Click to collapse
correct, you can use the I9300 versions of any rom for the I9300T as well.
chrismast said:
correct, you can use the I9300 versions of any rom for the I9300T as well.
Click to expand...
Click to collapse
Ok. So the CSC numbers that are different on lets say the DUELL2 and the XXEMC2 are not something to bother me right? I just download the XXEMC2 rom and flash it on the DUELL2 S3 and then I just will root it. right? Will the phone become i9300 after that procedure? or stay i9300t? So I know which file i should use to root it.
Soz for too many questions but the phone is not mine and I need to be sure for the procedure.
jimskeet2002 said:
Ok. So the CSC numbers that are different on lets say the DUELL2 and the XXEMC2 are not something to bother me right? I just download the XXEMC2 rom and flash it on the DUELL2 S3 and then I just will root it. right? Will the phone become i9300 after that procedure? or stay i9300t? So I know which file i should use to root it.
Soz for too many questions but the phone is not mine and I need to be sure for the procedure.
Click to expand...
Click to collapse
The firmware code (XXEMC2) should not be of concern.
The modem code (DUELL2) should be of concern IF you experience bad performance in the region you are. If so, flash a different modem and try it.
The phone will be an I9300T whereas in the menus it might tell you I9300, anyway there is no difference in the files to use.
For rooting, follow the guide, you can use CF-Root 6.4 (if you want a custom recovery) or CF-Autoroot (if you want to use stock recovery).
chrismast said:
The firmware code (XXEMC2) should not be of concern.
The modem code (DUELL2) should be of concern IF you experience bad performance in the region you are. If so, flash a different modem and try it.
The phone will be an I9300T whereas in the menus it might tell you I9300, anyway there is no difference in the files to use.
For rooting, follow the guide, you can use CF-Root 6.4 (if you want a custom recovery) or CF-Autoroot (if you want to use stock recovery).
Click to expand...
Click to collapse
Thanks a lot mate. This helped a lot. I decided to go with the 4.1.1 version of its current region. Later if we see that it doesnt perform well here in greece we will flash the xxemc2 rom.
Ok i downloaded the rom from sammobile and the file name is this I9300TDUDLK1_I9300ZZZLK1_VAU.zip but i get an error message that says cannot open. file unknown or damaged :/ Why is that? Is this file meant to be named as md5?
jimskeet2002 said:
Ok i downloaded the rom from sammobile and the file name is this I9300TDUDLK1_I9300ZZZLK1_VAU.zip but i get an error message that says cannot open. file unknown or damaged :/ Why is that? Is this file meant to be named as md5?
Click to expand...
Click to collapse
To flash a rom via odin you need the md5 file, correct. Hence unzip or if you cannot maybe the download is corrupt?
Sent from my GT-I9300 using xda app-developers app
chrismast said:
To flash a rom via odin you need the md5 file, correct. Hence unzip or if you cannot maybe the download is corrupt?
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
The zip file was probably corrupted. we will download the greek version XXELLA after al...l. Cross fingers for success
btw should i make an efs backup to be surr???
and how can i do that?
Will this http://www.androidauthority.com/galaxy-s3-backup-restore-efs-imei-tool-122078/ work?
I did it on my greek galaxy s3 and ended up witha 20mb efs.img
Sent from my GT-I9300 using xda app-developers app
jimskeet2002 said:
btw should i make an efs backup to be surr???
and how can i do that?
Will this http://www.androidauthority.com/galaxy-s3-backup-restore-efs-imei-tool-122078/ work?
I did it on my greek galaxy s3 and ended up witha 20mb efs.img
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Yes, definitely backup your efs! Search for it and you will find tons of guides.
Sent from my GT-I9300 using xda app-developers app

[REQ][Modem] DXLSD

anyone happen to have a flashable modem zip for DXLSD? hopefully for Rootbox ;p tried searching but to no avail.
time for an upgrade to my local modem. thanks guys!
Look on hawkerpauls modem thread mate. Loads of help on there. Loads of modems tooo. Remember dont flash modem and ril on custom rom. Modem/ril combo is for Samsung firmware only. Rootbox only flash modem. There all in hawkerpauls thread. You may have to flash loads to find whats best for you. Read the thread is full of good info on what modem is good for were and what network.
If you do flash modem/ril combo on custom make sure you no what your doing and got a good bkup of efs folder as chances are high you will need it. :thumbup:
Adevem said:
anyone happen to have a flashable modem zip for DXLSD? hopefully for Rootbox ;p tried searching but to no avail.
time for an upgrade to my local modem. thanks guys!
Click to expand...
Click to collapse
DXLSD is a ROM.Look at this..Modem is DXLP8.I couldn't find that modem,however,I found a newer version of it,DXLP9!
Dxlp9 is for 4.0.3
Dont flash the ril mate

[Q] KH3 Modem On Custom OS Galaxy S2

I was using the S2 with Jelly Bean. I found the phone to heat up very quickly around the camera lens and top of the phone rather than when running on Ginger Bread. I then installed the Resurrection Remix Custom ROM v5.1.3 with KitKat 4.4.2.
But the heating problem is still there. Checking online I found out that the modem was the problem.I found the KH3 modem was the best for the Galaxy S2. I was wondering if installing the KH3 modem was appropriate on Custom ROM or can modems be installed only on Custom ROM???
If it can be installed can anyone guide me how ... BTW I am using the phone in India ...
Please reply the overheating problem is driving me nuts.
Attatched is a screenshot showing my phone information.
You question is a bit confused (because you haven't taken the time to learn 'the basics' like 95% of people who come here), but the answer is yes. Modems are interchangeable between Android versions on the S2 & not dependent on same; I.E you can flash a modem that was bundled with stock rom that was a different Android version to the one you're currently running (whether stock or custom, makes no difference).
As to how to flash a modem....C'mon....
This is absolute basics, you should know this stuff back to front inside out if you're flashing custom roms.
In other words, search.
MistahBungle said:
You question is a bit confused (because you haven't taken the time to learn 'the basics' like 95% of people who come here), but the answer is yes. Modems are interchangeable between Android versions on the S2 & not dependent on same; I.E you can flash a modem that was bundled with stock rom that was a different Android version to the one you're currently running (whether stock or custom, makes no difference).
As to how to flash a modem....C'mon....
This is absolute basics, you should know this stuff back to front inside out if you're flashing custom roms.
In other words, search.
Click to expand...
Click to collapse
I know how to flash the modem using Odin ... I was just wondering if I can flash it on any Android version or any Custom or Stock ROM... and just to be sure the modem zipped file is about 4.5mb right?? Coz I found a KH3 modem file on one blog which was about 200MB in size ...
abhijitcools2 said:
I know how to flash the modem using Odin ... I was just wondering if I can flash it on any Android version or any Custom or Stock ROM... and just to be sure the modem zipped file is about 4.5mb right?? Coz I found a KH3 modem file on one blog which was about 200MB in size ...
Click to expand...
Click to collapse
Usually a modem file size should not exceed 10 MB. You can even flash the modem via cwm. On xda you can find links for such files.
banjara said:
Usually a modem file size should not exceed 10 MB. You can even flash the modem via cwm. On xda you can find links for such files.
Click to expand...
Click to collapse
Should I do a NANDroid Backup before flashing the modem ??
abhijitcools2 said:
Should I do a NANDroid Backup before flashing the modem ??
Click to expand...
Click to collapse
That's not required. Just keep a flashable file of your current modem, just in case you want to revert. I mean, download it and keep it on your phone.
For India, ddls9 also works quite well. I have seen good results on xxls8 too.
banjara said:
That's not required. Just keep a flashable file of your current modem, just in case you want to revert. I mean, download it and keep it on your phone.
For India, ddls9 also works quite well. I have seen good results on xxls8 too.
Click to expand...
Click to collapse
If something happens and I restore the phone from a backup of the phone , will the firmware baseband be restored or thats something else??
Firmwares are included in the backup or not??
abhijitcools2 said:
If something happens and I restore the phone from a backup of the phone , will the firmware baseband be restored or thats something else??
Firmwares are included in the backup or not??
Click to expand...
Click to collapse
I am not very sure about that. My guess is that it doesn't backup your modem with the rom backup.

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