Hello everyone, after a lot of desperation I finally decided to create a topic discussing my problem.
Few weeks ago, I decided to change ROM in my i9100 to SlimBean, since that moment I have been experiencing variety of problems. First problem came directly after flashing SlimBean, my phone was suddenly SIM locked. After some time, I managed to unlock it (or atleast I think so). Also, I went back to stock ICS ROM. Everything was good, but you know.. Stock is stock. So I went throught the forums and checked for some ROMs. Since I found that CM is finally stable, I flashed recovery from their thread and continued in flashing ROM itself. Everything went smooth, after few moments I was booting into CM. When the booting finished, I found out that I have no network signal. I checked the IMEI, it was correct. After trying few things, I decided to try another ROM. Same problem, no network available. I went back to stock ROM, network is working. I have tried various versions of stock ROMs, from 2.3.6 all the way up to 4.1.2. All stock ROMs run without a problem, once I go with custom ROM, no network is available. Any hints?
I believe I have the same/similar problem. I have spent hours playing around with different things (changing modems/kernels/ROMs) and nothing seems to work. I modified my nv_bin file in the efs folder recently to unlock my phone (the unlock code no longer worked). I did this from within a stock 2.3.5. When that worked, I installed a back-up I had of 4.1.2 (Resurrection Remix v3.1.2) and everything was still fine. But when I tried to upgrade to CM 10.1 or Resurrection Remix v4.0.7 (or CM 10.2 nightly), I got no signal and couldn't locate any networks. When I went back to the Resurrection Remix (Android 4.1.2), everything was fine. I've installed various ROMs between my i9100 as well as my i9505 so it's not a matter of not installing them correctly. As far as I can tell, anything past 4.1.2 doesn't seem to like the edited nv_bin file. This was necessary as it's a carrier model from Chile and I wanted to be able to use it with other sims. Reverting back to an unedited nv_bin is not an option.
I ran EFS Professional and repaired my nv_bin file with 4.3 installed. With the carrier's sim, everything is roses. When I insert another sim, I get the network unlock prompt. Although I do have an unlock code, it doesn't work anymore (and hasn't for a long time). When I revert back to the edited nv_bin file that I had backed-up, I don't get the network unlock prompt anymore but I don't get any signal either, regardless of the sim card. I am able to see my IMEI and my phone finds the access point for whatever sim I install but it can't find any networks.
Anybody have any ideas?
Related
So, I had a rooted, stock install of ICS (FF18) as well as AGAT. I decided I wanted to try out Cyanogen, so after trying unsuccessfully for a number of hours, I discovered Resurrection Remix, installed it, and it was working great. Only problem is, I had no base band and could not connect to my cell network or use WiFi. I tried installing it a few more times with different modems and none worked, so I flashed back to FF18 and got that all set back up. I read somewhere that you should try using a stock JB install before installing RR, so I flashed a JB ROM, and had the same issues with no working modem/baseband. So now I decided to just give up and go back to ICS, but I'm having an issue doing that. My USB does not function at all. It charges, but does not show up on my computer, nor can I ODIN it. I've tried all the tricks on here (Re-installing drivers, different cable/computer, *#87-whatever) and it still will not work. I can't exactly reflash it without ODIN or CWM, and am at a loss as to what to do. Thanks for any help.
EDIT: I should mention that this JB ROM is rooted, but I can't seem to access anything on my SD card, so transferring files seems to be out of the question.
Echo35 said:
So, I had a rooted, stock install of ICS (FF18) as well as AGAT. I decided I wanted to try out Cyanogen, so after trying unsuccessfully for a number of hours, I discovered Resurrection Remix, installed it, and it was working great. Only problem is, I had no base band and could not connect to my cell network or use WiFi. I tried installing it a few more times with different modems and none worked, so I flashed back to FF18 and got that all set back up. I read somewhere that you should try using a stock JB install before installing RR, so I flashed a JB ROM, and had the same issues with no working modem/baseband. So now I decided to just give up and go back to ICS, but I'm having an issue doing that. My USB does not function at all. It charges, but does not show up on my computer, nor can I ODIN it. I've tried all the tricks on here (Re-installing drivers, different cable/computer, *#87-whatever) and it still will not work. I can't exactly reflash it without ODIN or CWM, and am at a loss as to what to do. Thanks for any help.
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Click to collapse
Based on your reference of FF18, My guess is you're trying to install CyanogenMod for the I9100 to your SPH-D710, aka. the Epic 4G Touch.
Check your phone model. It'll be on the label under your battery. If it says "SPH-D710", you're in the wrong place.
Epic 4G Touch forum is at http://forum.xda-developers.com/forumdisplay.php?f=1281
ctomgee said:
Based on your reference of FF18, My guess is you're trying to install CyanogenMod for the I9100 to your SPH-D710, aka. the Epic 4G Touch.
Check your phone model. It'll be on the label under your battery. If it says "SPH-D710", you're in the wrong place.
Epic 4G Touch forum is at http://forum.xda-developers.com/forumdisplay.php?f=1281
Click to expand...
Click to collapse
Yeah, I do have an E4GT, couldn't find the forum for it, thanks.
So I was trying some new roms (CM11, temasek, etc) today and I got an error when flashing an old 4.1 samsung rom (I was on 4.3 official yesterday).
Now my SIM card is not recognized. It says "only emergency calls" and nothing else. I don't have cell signal at all.
I tried taking out the SIM and putting it inside again and factory reset in CM. I also tried flashing again the 4.3 samsung unlocked rom.
I'm downloading right now the 4.3 official rom from Vodafone (my carrier), in hopes that will fixed it with ODIN, but just to be sure I'll ask if anyone knows how to fix this issue.
Thanks!
Hundreds of identical posts, search and read before starting new threads.
If flashing the stock 4.3 rom with odin doesn't work then you'll need the backup you made of your efs folder.
Hello,
I've been facing this problem for days now, tried almost everything and still no luck, so I'm sorry if it's been asked before, but I'm truly hopeless.
Right now, my SGS3 works only on stock ROMs. Every time I try to install a custom ROM (JB or KK) I have a problem with the signal - either baseband, IMEI and everything is "unknown", or everything is good (IMEI not "0049...", there are full correct APNs) but it still displays the "error while searching for networks" message.
Fortunately (as I realized on other threads),I can always go back to square one, flash a stock 4.3, with no problems with IMEI or anything, but, you know, stock sucks.
I tried installing every modem I ran into, but nothing helped. Is there a secret step from stock to custom on samsung devices I'm skipping (I'm an ex-nexus user...)?
+1
Same problem, no solution until now
oriwass said:
Hello,
I've been facing this problem for days now, tried almost everything and still no luck, so I'm sorry if it's been asked before, but I'm truly hopeless.
Right now, my SGS3 works only on stock ROMs. Every time I try to install a custom ROM (JB or KK) I have a problem with the signal - either baseband, IMEI and everything is "unknown", or everything is good (IMEI not "0049...", there are full correct APNs) but it still displays the "error while searching for networks" message.
Fortunately (as I realized on other threads),I can always go back to square one, flash a stock 4.3, with no problems with IMEI or anything, but, you know, stock sucks.
I tried installing every modem I ran into, but nothing helped. Is there a secret step from stock to custom on samsung devices I'm skipping (I'm an ex-nexus user...)?
Click to expand...
Click to collapse
When you install a custom rom, based on samsung 4.3, do you have emergency calls only/no network?
If yes, install Boeffla kernel 5.3/or beta 5.4 because Boeffla is a patched kernel i.e. it can read patched modems, and then install a patched modem .
From the on you will have your network (no emergency calls/no network problem) and signal should be good.
But first backup your EFS and store it on a very safe location, you have ann app for that, k-Tool on Playstore (requires root).
Hi everyone. I'm having some serious (or at least I think so) problems with my I777. I live in Colombia, and I bought it over two years ago, had it shipped over by a friend, unlocked. Up until today I'd been using it normally, without any major problems.
However, the last couple of days it started behaving strangely, (turning itself off every once in a while, losing data, etc), so I decided to update my rom today.
I tried to install a new CyanogenMod 4.4 from this site, but I got some kind of status 7 error and it didn't behave properly after that.
Next thing I did to try to fix it was flash a stock JB 4.1.2 rom via Odin.
It worked, but that's when the major problem struck... Apparently my phone got locked for AT&T again or something. It's not recognizing my sim-card anymore. It shows the "no-sim" notification on the top bar, yet it also shows it has a signal (no data, just phone signal), even when my sim-card isn't inserted. When I go in the settings to try to access the mobile networks it says insert sim card even when it's in there.
I did a lot of searching and I used GalaxSimUnlock, which I got from this site too, and it confirms my phone is unlocked.
So basically... What the heck happened?? Is it possible that after three years of using it perfectly with my Colombian sim, the AT&T lock just "came back" or something after flashing a stock rom?
Any clue guys?
If you used galaxsimunlock the unlock is permanent.
Sent from my SGH-I777 using XDA Free mobile app
After you flashed back to stock, did you try to root again and flash another custom ROM?
I could be wrong on this, but the AT&T stock firmware may not be giving you the choice to register the SIM or change the APN settings for you particular network. I can't confirm this though as I never flash to stock long enough to actually use it. I always root and go back to something else immediately afterwards.
The only suggestion I have is to go back to a custom ROM and try again.
If you are trying to go to KitKat, be sure you have the newest compatible recovery (CWM or TWRP) as the versions of those that work with JB will not allow you to flash a KitKat ROM. There are plenty of threads that will tell you what versions you need. If it's an SGH-i777 model then all you should need to get the proper recovery is to flash one of the two KK compatible kernels as the recovery is packaged with them.
Good luck!
Hi guys,
I've ordered a new, unlocked i9300 from eBay, and I had some adventures with it:
I've unpacked it, inserted my SIM, powered it on, and found out that the phone always thinks that I'm roaming. Instead of trying to understand what's going on, I though: "I'll just install CyanogenMod and everything will be good".
I've installed CyanogenMod 10.2 (latest stable build), only to find out that my SIM is not being detected at all. It says that Baseband is unknown, IMEI and related are unknown as well.
After trying lots of stuff, I gave up and decided to return to stock ROM (4.3). While trying to do that, I bricked my phone, and the only thing I could do is enter Odin mode.
After reading dozens of tutorials and trying lots of stuff, I ended up flushing GT-I9300_mx_20120329.pit, and that unbricked my phone.
I successfully flashed Android 4.3. This version detected my SIM, displayed the Baseband/IMEI, but it didn't connect to the cellular network. I could scan for available networks, but when I chose my network manually, it said "Selected network not available ".
I tried to flush alternative modems, but all it did is making things worse. Usually it made the phone behave like with CyanogenMod, i.e. Baseband/IMEI are unknown.
Again, after trying lots of stuff, I tried to flush Android 4.1.2. That made no change until I've stumbled on this thread. Flushing Patched_Modem_I9300XXEMG4.zip made my networking work again, and restored it to behave exactly like it did initially. Again, the phone thinks that I'm roaming all the time, but at least it works.
So currently, I have two issues:
My phone always thinks I'm roaming. Is there a fix for it?
And more important: currently, I cannot install anything other than Android 4.1.2!
Could you please shed some light on the situation? What happens with my phone? Why does it think I'm roaming? Why does the SIM work only with Patched_Modem_I9300XXEMG4? How can I make other ROMs (e.g. CyanogenMod) work?
Thanks, any help is much appreciated!
9999 :) said:
Hi guys,
I've ordered a new, unlocked i9300 from eBay, and I had some adventures with it:
I've unpacked it, inserted my SIM, powered it on, and found out that the phone always thinks that I'm roaming. Instead of trying to understand what's going on, I though: "I'll just install CyanogenMod and everything will be good".
I've installed CyanogenMod 10.2 (latest stable build), only to find out that my SIM is not being detected at all. It says that Baseband is unknown, IMEI and related are unknown as well.
After trying lots of stuff, I gave up and decided to return to stock ROM (4.3). While trying to do that, I bricked my phone, and the only thing I could do is enter Odin mode.
After reading dozens of tutorials and trying lots of stuff, I ended up flushing GT-I9300_mx_20120329.pit, and that unbricked my phone.
I successfully flashed Android 4.3. This version detected my SIM, displayed the Baseband/IMEI, but it didn't connect to the cellular network. I could scan for available networks, but when I chose my network manually, it said "Selected network not available ".
I tried to flush alternative modems, but all it did is making things worse. Usually it made the phone behave like with CyanogenMod, i.e. Baseband/IMEI are unknown.
Again, after trying lots of stuff, I tried to flush Android 4.1.2. That made no change until I've stumbled on this thread. Flushing Patched_Modem_I9300XXEMG4.zip made my networking work again, and restored it to behave exactly like it did initially. Again, the phone thinks that I'm roaming all the time, but at least it works.
So currently, I have two issues:
My phone always thinks I'm roaming. Is there a fix for it?
And more important: currently, I cannot install anything other than Android 4.1.2!
Could you please shed some light on the situation? What happens with my phone? Why does it think I'm roaming? Why does the SIM work only with Patched_Modem_I9300XXEMG4? How can I make other ROMs (e.g. CyanogenMod) work?
Thanks, any help is much appreciated!
Click to expand...
Click to collapse
When the phone gets upgraded from 4.1 to 4.3 your efs changes from efs v1 to efs v2 sometimes this upgrade does not go smoothly (as in your case) so then you need to always use a patched modem from version mg4 onwards (not a normal one) if you flash a rom which changes the baseband to anything less than 4.3 then it will not work.You need to keep on mg4 or later to keep signal and because your efs is not fully upgraded properly you need to always use a patched modem and preferably kernel as well.
I am not sure about the roaming issue but if you try patched modem and patched kernel together that might help.Take a look here for some patched modems and kernels and remember you always need to use them >> https://drive.google.com/folderview...sharing&tid=0B6MIUd7HJudAbU5YaGkzOUowMG8#list << You should also be able to use 4.3 roms as long as you use the patched files above ie baseband and kernel.
In general, It would be great if I could use CyanogenMod 10.2.
Should I proceed in the following order? Flush CM -> flush patched kernel -> flush patched modem.
Which of the patched versions should I choose?
Also, what do these versions change? What functionality was patched in these files? Can I read about it somewhere?
Thanks for the help.
9999 :) said:
In general, It would be great if I could use CyanogenMod 10.2.
Should I proceed in the following order? Flush CM -> flush patched kernel -> flush patched modem.
Which of the patched versions should I choose?
Also, what do these versions change? What functionality was patched in these files? Can I read about it somewhere?
Thanks for the help.
Click to expand...
Click to collapse
No the kernel will only work for 4.3 roms not CyanogenMod roms but the patched modems will work.You can try flashing CyanogenMod then the patched modem but CyanogenMod does not include a modem so whatever modem you where on when you flashed CyanogenMod you will keep.
tallman43 said:
No the kernel will only work for 4.3 roms not CyanogenMod roms but the patched modems will work.You can try flashing CyanogenMod then the patched modem but CyanogenMod does not include a modem so whatever modem you where on when you flashed CyanogenMod you will keep.
Click to expand...
Click to collapse
I tried installing CyanogenMod, then flushing some of the patched modems you've linked. Unfortunately, nothing changes - Baseband/IMEI are always unknown.
9999 :) said:
I tried installing CyanogenMod, then flushing some of the patched modems you've linked. Unfortunately, nothing changes - Baseband/IMEI are always unknown.
Click to expand...
Click to collapse
You mean flash not flush.
Also you should be careful to by things like this off ebay, There is a very high chance you brought the phone broken like this but did not notice straight away.
Don't hang around on 4.1.2 as you might get SDS.
Upgrade to 4.3 stock of higher using custom roms with a patched modem of mg4 or higher as stated by tallman43.
Read here for what you or the previous owner has done. Also on stock make sure your csc is correct.
http://forum.xda-developers.com/galaxy-s3/general/ref-imei-efs-stuff-i9300-including-t2393289
If you cannot get it to work you need to take it in for repair. Make sure it works on 4.3 before paying.