Database Info

Bricked?? Help!!

I was running CM7 for awhile. Decided I wanted to go back to stock..
I tried the FLASH exe. My phone booted, it activates and logs in. but if i try to make a call or send a text. nothing happens.
calls give me an error 16..
i tried the odin method aswell.
same issue.
any suggestions?? anyone?
please
cant even reflash cm7 smh...

went to sprint today and had them replace my phone.
he was as baffled as i was.
I backed up my efs and wimax before i originally flashed CM7 but i had no clue how to re apply it and I wasnt about to tell the rep that.
has anyone honestly successfully put their phone back into a stock working state??
Im afraid to root again.... stock is so plain tho. lol

kalico17 said:
went to sprint today and had them replace my phone.
he was as baffled as i was.
I backed up my efs and wimax before i originally flashed CM7 but i had no clue how to re apply it and I wasnt about to tell the rep that.
has anyone honestly successfully put their phone back into a stock working state??
Im afraid to root again.... stock is so plain tho. lol
Click to expand...
Click to collapse
My theory is that you flashed the stock ROM from the wrong device. But we will never know if that is correct or not.
I put my phone back to stock all the time. Many people do. There's not problem with it. Your problem was caused by some mis-step. Sorry I was not able to help you solve it fast enough!

ya I've actually went back to stock from being rooted it was pretty easy ..I just used one of the tutorials on the nexus s development
Sent from my Nexus S 4G using XDA Premium App

the first method I had used was the SIMPLEDL720.exe? IM not sure the exact name but I used that to try and flash it back..
it broke at that point. Couldnt make calls or send texts.. everything else worked. 4G, 3G, Internet, Market..
i tried rerooting and flashing CM7 again.. still the same issues.
Im assuming its that .exe file that killed the phone.
perhaps I shoulda tried odin first :/

kalico17 said:
the first method I had used was the SIMPLEDL720.exe? IM not sure the exact name but I used that to try and flash it back..
it broke at that point. Couldnt make calls or send texts.. everything else worked. 4G, 3G, Internet, Market..
i tried rerooting and flashing CM7 again.. still the same issues.
Im assuming its that .exe file that killed the phone.
perhaps I shoulda tried odin first :/
Click to expand...
Click to collapse
No, there is no need to get so complicated. Just flash stock ROM through ClockworkMod Recovery, just like you would flash any other ROM.

my objective was to return to complete stock.
like if u had an epic and you used ODIN, it would eliminate root and cwm and return the phone to its original state..
if i wanted to flash another rom I would have done so lol...
wasnt what i was trying to do at the time.

ODIN works perfectly for me all the time, maybe you were trying to load the wrong data for your device? Id be happy to post the ODIN and the associated files to get you back to out-of-box condition, in case you have to in the future.
**Assuming your device came out-of-box with GRH78?

[Q] IMEI question

Okay So my phones IMEI has been a bunch of 0's since maybe january of this year. I had a efs backup on my computer but someone wiped it and now i dont have that folder anymore to restore it. Ive tried a few one clicks and nothing fixed it..but my question is, can having a bad IMEI have a negative effect on my phome? What are the problems to this? And just so you all know, my phone has been running fine since the number became corrupted. I dont have any of the bad symptoms that everyone else gets.
Keep in mind, im not trying to fix it(i have lost all hope for that Lol) I just want to know what can happen because of a corrupted IMEI. Thanks In advance.

You can't receive or send data to your carrier and that is all.
Once your phone has lost its IMEI it's as good as a iPod Touch.

What do you mean data to my carrier? i wouldnt say its as good as an iPod touch since i can still make calls, text and have data. The only thing i have noticed is that when i log into my tmobile account, it doesnt show what kind of phone i have. But thats all.
Thanks for the quick reply btw.

Well the only way to get back imei to normal is to restore thru 1-click heimdall or whatever method you use to go back to stock.

I know, I've tried plenty of one clicks and none of them restored it. So I gave up on trying to restore it a long time ago. But the phone itself is working perfectly normal.

Check under /sdcard/aroma and see if there's an efs backup in there. If you installed any roms that used my aroma installer there's a good chance your efs partition got backed up.

I also noticed that yesterday before I fixed my imei with my efs backup I couldnt access voicemail at all. Ate you having that same problem?
Sent from my SGH-T959V using Tapatalk 2

I don't even have an aroma folder on my SD card FB lol. But thanks for the suggestion.
And actually, I can still access my voicemail.
Well, i guess im just lucky that everything still works even with a screwed imei number.

dont mean to jack this thread but fb im having the same problem i have the aroma back up how do i restore the efs back up

dragon5944 said:
dont mean to jack this thread but fb im having the same problem i have the aroma back up how do i restore the efs back up
Click to expand...
Click to collapse
I'll need to post instructions soon or post a restore zip for you guys. Are you on ICS? It might be easier to try a one click back to gingerbread and to reflash your ICS rom.
Don't expect me to make the zip but maybe a savvy user can give you instructions on restoring the backup using adb.
Basically what you'll need to do if the one click to gb and reflash to ICS doesn't work is:
Flash to gb
Reboot to recovery
Mount /efs
Untar the efs backup into /efs
Reboot and test voice, data, imei
I'd give you specific commands but I'm not at home

ok thanks i dont like the one clicks. when i use them to go back to gb my imei is unknown but when i use your gb starter pack and flash a gb rom it works great so i think ill stick with gb

th3controller said:
You can't receive or send data to your carrier and that is all.
Once your phone has lost its IMEI it's as good as a iPod Touch.
Click to expand...
Click to collapse
That is not correct. I got screwed over on an eBay buy, the phone was blacklisted by T-Mobile. I've been running on a null IMEI for months with no problems. Edge, 3G, HSDPA, phone calls, texts: no issues.

USSENTERNCC1701E said:
That is not correct. I got screwed over on an eBay buy, the phone was blacklisted by T-Mobile. I've been running on a null IMEI for months with no problems. Edge, 3G, HSDPA, phone calls, texts: no issues.
Click to expand...
Click to collapse
Lol thanks for correcting me, as far as I know you can't do stuff with the carrier, but I have no clear evidence of that. But if its working fine for you then I feel bad for other people who has no IMEI and can't do stuff.

th3controller said:
Lol thanks for correcting me, as far as I know you can't do stuff with the carrier, but I have no clear evidence of that. But if its working fine for you then I feel bad for other people who has no IMEI and can't do stuff.
Click to expand...
Click to collapse
Huh, I wonder if it is related to the towers in their area, I've heard also of a person with an SGSIII running on T-Mobile with null IMEI. I have not been able to connect to AT&T, although I was able to connect to them with the original IMEI.

unknown imei,basband, and everything else.

aight so ive searched and searched for all kinda different methods. and done all of them. is it possible to have a permanent brick?
heres the story. i had been running cm10 for prolly 4 or 5 months. no problems. i wanted to check out liquid smooth rom. so i flashed it. no problems. had been running it for a month or so then one day at work when i went on break my network was gone. my apn's were deleted. came home inspected some more and my imei was unknown as well as baseband and many others were unknown. i took it back to stock many times using. gtg method. using heimdel. using odin. with different stock files. from different websites. including xda. i have tried just about everything to re do the phone. including going back to cm10. and other known working roms. ive *#*#4636#*#* and manually switched to gsm which wont change when i click it it still says unknown.
i dont belive it is a rom problem. i have been overclocked 1300mhz. what else is out there can i try. \
\
any help will be very appreciated

Have you by chance odined back to stock then reupgraded to JB? If not I can get you the necessary steps to do so...let me know
Sent from my SGH-I997 using xda premium

FauxAffliction said:
Have you by chance odined back to stock then reupgraded to JB? If not I can get you the necessary steps to do so...let me know
Sent from my SGH-I997 using xda premium
Click to expand...
Click to collapse
yea i went to stock and back to cm10. still nothing. buttt now im unable to do any kinda flashes. im on rooted 2.3.6 threw odin. and no matter what i flash it will say somthing on the lines of failed to find file signature or what ever that code is. i tried changing the cwm in different ways still wont get off the what is it 2.5.2 cwm blue. ive basicly gave up. it seems its to far bricked or whatever the case may be

im sorry i need to correct that. i have not been able to flash to any other roms. i didnt go to stock and then cm10, due the the signature deal on cwm. i was thinking of another time i had problems. so no i have no been able to go to jb after the imei has went unknown

Did you flash a custom kernel to get cwm after going back to stock?

andros11 said:
Did you flash a custom kernel to get cwm after going back to stock?
Click to expand...
Click to collapse
im in able to flash anything.....

really? no one can help me?

Are you trying to flash through Odin? Or through CWM?
Sent from my SGH-I997 using xda premium

psal217050 said:
Are you trying to flash through Odin? Or through CWM?
Sent from my SGH-I997 using xda premium
Click to expand...
Click to collapse
dont know how to flash a cwm threw odin. i tried loading a cwm threw rom manager and manually

kritz84 said:
dont know how to flash a cwm threw odin. i tried loading a cwm threw rom manager and manually
Click to expand...
Click to collapse
but im pretty sure the problem isnt with cwm im more interested in why and how to the imei isnt known and how to fix this problem if theres a cure

Download a heimdall one-click or odin back to stock pack. Open either one up and put your phone in download mode:
- turn off and have the usb cable connected to the pc.
- remove and reinsert battery
- hold both volume buttons and connect usb. Phone should now boot into download mode.
Run program and you will be good. Then look for entropy's dd kernel and flash it in download mode to get cwm.

andros11 said:
Download a heimdall one-click or odin back to stock pack. Open either one up and put your phone in download mode:
- turn off and have the usb cable connected to the pc.
- remove and reinsert battery
- hold both volume buttons and connect usb. Phone should now boot into download mode.
Run program and you will be good. Then look for entropy's dd kernel and flash it in download mode to get cwm.
Click to expand...
Click to collapse
i guess u didnt read my first post. ive already done that. ive done many things....
but anyway weirdest thing just happend. i have been using my phone via wifi. so its been on a while without a sim card inside of it.
\
i noticed i had signal bars. i looked at the imei and its was a number. it was a different iemi then what its supposed to be but there was a imei. baseband was still unknown but anyway i shut the phone done and inserted my sim card. btw its a straight talk sim. and restarted it now im back to unknown imei......

ok so im back on cm10. before i was on cm10 its was giving me the imei which wasnt my original imei. i guess cuz i flashed a efs.tar. but anyway i was able to make a phone call. now im flashed on cm10. and no imei no baseband nothin. i tried flashing the efs again with odin and still nothing. when i do the *#*#4636#*#* it still wont let me switch to gsm. and i cant add a apn.

kritz84 said:
ok so im back on cm10. before i was on cm10 its was giving me the imei which wasnt my original imei. i guess cuz i flashed a efs.tar. but anyway i was able to make a phone call. now im flashed on cm10. and no imei no baseband nothin. i tried flashing the efs again with odin and still nothing. when i do the *#*#4636#*#* it still wont let me switch to gsm. and i cant add a apn.
Click to expand...
Click to collapse
odin or heimdall back to stock.
follow andros11's guide on how to flash jb
he spent the time to write the guide; spend the same amount to time to read the guide

Seems IMEI was kidnapped about a month after Liquid
Ironically, I seem to have EXACTLY the same issue that this original poster has. I have been flashing my Infuse for a little over a year now and I Flashed Liquid, I'd say about 3 weeks ago, maybe end of November. Everything has been smooth sailing. About a 2 days ago I started noticing that my network would just drop - for no reason. But at first it came back. Ok, no problem, probably just a glitch. However yesterday morning it happened again and then I was without the use of data for most of the day until around 6pm. It came back but the bars were grey but I was able to make a phone call. Once I made another call it did not go through, I tried to hangup and it just hung there. there was nothing I could do to get it to hang up. Rebooting the phone resulted in no bars at all. Nothing, nada, ziltch. So last night I reflash it a couple times and notice that there was an update to Liquid (2.1 beta). cool. I wipe, flash 2.1b and it is beautiful. EXCEPT for the fact that I have no network. wifi works fine, but no carrier whatsoever. GRRRR. I decided to back every thing up (have done so several times in the past), stock back down to 2.3.6. Barebones and all it all looked great until I hung up the phone... Same thing. So I went all Rambo on the phone, wiped it down to the very last compound. AT&T wouldn't know the wiser if they took it from me. Master Reset, wiped files, data, I think I took an IC out with all of the wiping I did... Result? No IMEI, circle with the slash. Upset, disappointed and dejected I slumped back to XDA (after I went on Craigslist feeling my phone was broke) to see if I missed anything. That was where I found some links about missing IMEI. To make a long story short, I DO have an old copy of EFS thanks to QKSTER, but I have no idea how to restore. I swear I have been on this since 6:30am and just now am I finding these threads. Must have gone through about 50 others... Sigh. BTW, along the way of my flashing experience today, my network came back temporarily, but I have not relied on it because I knew it would leave me. Just don't know how to use Heimdall to restore. To make a long story short, using Windows, could someone please help me with how to restore my EFS to see if this would solve my dilemma?
808

Dnice808 said:
To make a long story short, I DO have an old copy of EFS thanks to QKSTER, but I have no idea how to restore. I swear I have been on this since 6:30am and just now am I finding these threads. Must have gone through about 50 others... Sigh. BTW, along the way of my flashing experience today, my network came back temporarily, but I have not relied on it because I knew it would leave me. Just don't know how to use Heimdall to restore. To make a long story short, using Windows, could someone please help me with how to restore my EFS to see if this would solve my dilemma?
808
Click to expand...
Click to collapse
What is the format of your EFS folder?
*.zip
*.tar
just a folder?
If you have lost the signal while on JB, see if you can factory reset the phone.
/settings/privacy -reset
Then put it into download mode.
Use the heimdall 1 click uclb3 and flash it once, then without closing heimdall, check the bootloader box and flash it again.
After this, check your imei and band. If it works, no further back up is needed.
If you're still missing the imei, you can flash one of the gb kernel in the second post to get cwm.
Then use the root pack in post #2,
http://forum.xda-developers.com/showthread.php?t=1629079 to install root and su.
install a root tool like root explorer (remember to toggle the r/o r/w) or adb and copy the /efs into the phone's root efs folder,
reboot
check the baseband.
you can also check this thread
http://forum.xda-developers.com/showthread.php?t=1895500

qkster said:
What is the format of your EFS folder?
*.zip
*.tar
just a folder?
So it is in the .tar format that your script backed it up in. Finding another link on the we (which he also linked back to XDA, http://forum.xda-developers.com/showthread.php?t=1264021 I was able to take my backup (that I used with your script) and follow his steps -mostly- (my/your backup had a 'root' folder that had the nv_data.bin file in the afs/settings folder while the instructions did not mention that. I followed the backup location settings (which in turn was also the same as the default that I had backed up)) and replace the EFS folder. It still did not restore it in any flash image just like that. Still had the the circle w/slash. However while I was still searching and typing out that loooong last passage I wrote, my phone network came back for a little while. I know this because I began receiving a bunch of texts. I was able to make a phone call. But it still happened again when I made another, it did not go through and when I hung up, it just stayed there looking at me with its grey, blank look. Even killing the phone app did not work. I rebooted back to the same drama.
If you have lost the signal while on JB, see if you can factory reset the phone.
/settings/privacy -reset
I actually was on 2.3.6 using your posts, first the basic rooted flash having to then using the Entropy kernel and then I did the lazy flash that was already rooted and just having to add the vold file to /system/etc/blah/blah. I do want to add that I DID have wifi active at this time and it may not be associated, but the first poster did mention he felt it may have had something to do with it. With wifi on, after awhile of me NOT looking at the phohe (actually doing so made me want to HULK SMASH), the network came on and my texts came in. I was able to look in settings and see ATT, and my IMEI. I was almost finished with my passage to you so I decided to update to Liquid 2.1 beta, but moving up to JB, then to LiquidSmooth. Of course doing so I got the circle w/slash, but wifi started restoring my apps.
Earlier I mentioned that I did a whole rubba dub dub, meaning I did do the /settings/privacy -reset thingy, wiping the phones carcass. I will do it again (at this point nothing to lose), following everything you ask to a 'T'.
808
Click to expand...
Click to collapse

qkster said:
What is the format of your EFS folder?
*.zip
*.tar
just a folder?
If you have lost the signal while on JB, see if you can factory reset the phone.
/settings/privacy -reset
Then put it into download mode.
Done.
Use the heimdall 1 click uclb3 and flash it once, then without closing heimdall, check the bootloader box and flash it again.
Done
After this, check your imei and band. If it works, no further back up is needed.
Sigh, did not do a darn thing. Circle w/slash.
If you're still missing the imei, you can flash one of the gb kernel in the second post to get cwm.
Done.
Then use the root pack in post #2,
http://forum.xda-developers.com/showthread.php?t=1629079 to install root and su.
install a root tool like root explorer (remember to toggle the r/o r/w) or adb and copy the /efs into the phone's root efs folder,
reboot
check the baseband.
Went in Root Explorer, did the toggle, deleted the contents of efs then copied the contents of my backup into there. Rebooted. Nada.
you can also check this thread
http://forum.xda-developers.com/showthread.php?t=1895500
I then was going to try the other link using Odin, but I cannot get Odin to see my phone. I read some thread talking about if I use Heimdall I will have problems using Odin because they use the same ports? How frustrating. The weird part is now that I have the flashed, rooted 2.3.6 image and using wifi, at some point tonight my network may come back on. Or it may not.
808
Click to expand...
Click to collapse
Bugged out, huh?!!???

Dnice808 said:
Bugged out, huh?!!???
Click to expand...
Click to collapse
I wasn't sure if there was a question there.
From my experience, flashing to JB (MTD partition) from GB without going through ICS may result in lost of imei.
Sometimes, it just happens. I had very limited experience with JB.
The few methods that I've tried worked for me. Just simply flashing back to stock with a re-partition ( (Heimdall -1-click for me) usually brings back the /efs and imei without doing anything extra.
If you haven't, and if you can, I would try the heimdall-1-click a few times.
If you want to use Odin, you may need to reinstall samsung drivers and use a different usb port on the PC than the one you used for heimdall.
You may also want to check the signal of the phone at your location. you may be getting poor signal and it has nothing to do with the phone's OS

qkster said:
I wasn't sure if there was a question there.
Click to expand...
Click to collapse
Me stating that it is bugged out, was me just confirming that it is Weird!
qkster said:
From my experience, flashing to JB (MTD partition) from GB without going through ICS may result in lost of imei.
Sometimes, it just happens. I had very limited experience with JB.
Click to expand...
Click to collapse
Ok just to explain myself better. I have been saying that I was going from GB to JB when in fact I meant to say that I was going from GB to ICS. Sorry for that. Also, the reason my responses have looked wacky is that I was trying to select the multi quote button and getting no response. Hopefully this response is a little more organized.
qkster said:
The few methods that I've tried worked for me. Just simply flashing back to stock with a re-partition ( (Heimdall -1-click for me) usually brings back the /efs and imei without doing anything extra.
If you haven't, and if you can, I would try the heimdall-1-click a few times.
Click to expand...
Click to collapse
See that is what confuses me too. I have flashed back and forth several times at this point, and sometimes the /efs and imei do come back, but now they have never stayed. It is the only reason why I have tried to pretty much rule out a hardware issue. Even when I flash and there is no imei, there is the same /efs folder. And when I wipe the whole thing sparkling clean, even the newly formed /efs folder has the correct imei but it is just not being recognized on the phone.
qkster said:
If you want to use Odin, you may need to reinstall samsung drivers and use a different usb port on the PC than the one you used for heimdall.
Click to expand...
Click to collapse
Of course what I did was accidentally leave my phone home preventing me from testing it out with Odin on another machine. Its all good though.
qkster said:
You may also want to check the signal of the phone at your location. you may be getting poor signal and it has nothing to do with the phone's OS
Click to expand...
Click to collapse
I have an AT&T prepaid phone and the sim from the Infuse works in it flawlessly...
808

can i flash a modem from another samsung? (not infuse)

thats the cuestion

Well, unless its a Samsung galaxy s 4g and its nodded for the infuse, no.
Sent from my SGH-I997 using xda app-developers app

Rockman EXE said:
thats the cuestion
Click to expand...
Click to collapse
not sure why you would want to do that..you should be able to get enough from the variety that is available on the i997
each device has their own specific modem
some had reported success using modem from different galaxy device if the hardware is similar
i think the first galaxy captivate modem work but cant vouch for that. it's been almost 2yrs since i recall that topic being brought up
dig back into the older modem thread in the dev and the q/a sections

qkster said:
not sure why you would want to do that..you should be able to get enough from the variety that is available on the i997
each device has their own specific modem
some had reported success using modem from different galaxy device if the hardware is similar
i think the first galaxy captivate modem work but cant vouch for that. it's been almost 2yrs since i recall that topic being brought up
dig back into the older modem thread in the dev and the q/a sections
Click to expand...
Click to collapse
I did read in another forum that the emg4 modem can fix the signal (baseband unknown and imei unknown) so, i was thinking to flash it

Rockman EXE said:
baseband unknown and imei unknown)
Click to expand...
Click to collapse
this issue is a different altogether. flashing a modem from a different device over it is unlikely to fix the problem
kinda like trying to fix a accidentally pregnant girl with a baseball bat...
the baseband or imei was prolly from a bad jb flash
bring it back to complete stock may fix it

I tried that too...but doesnt work

Rockman EXE said:
I tried that too...but doesnt work
Click to expand...
Click to collapse
the only time I had with a lost emei was a flash from gb to jb without going thru ics..i brought it back to stock gb and it came back.
gb uses rfs - samsung partition. jb moves the partitions around so the emei may seem lost. that's why i think when you go back to gb, it is found again. i think the same can happen to miui and cm7 flash
i've read flash jb 2 or 3 times may also work..idk..can't vouch for that
here is 2 posts in the general section that address the null emei issue...idk..it may help.
http://forum.xda-developers.com/showthread.php?t=1895500
http://forum.xda-developers.com/showthread.php?t=1438113
you can also try flashing another device's modem you wanted and report back. the worse that can happen is you sending the phone to the repair guys for a jtag flash for bricking it if odin or heimdall wont bring it back

qkster said:
the only time I had with a lost emei was a flash from gb to jb without going thru ics..i brought it back to stock gb and it came back.
gb uses rfs - samsung partition. jb moves the partitions around so the emei may seem lost. that's why i think when you go back to gb, it is found again. i think the same can happen to miui and cm7 flash
i've read flash jb 2 or 3 times may also work..idk..can't vouch for that
here is 2 posts in the general section that address the null emei issue...idk..it may help.
http://forum.xda-developers.com/showthread.php?t=1895500
http://forum.xda-developers.com/showthread.php?t=1438113
you can also try flashing another device's modem you wanted and report back. the worse that can happen is you sending the phone to the repair guys for a jtag flash for bricking it if odin or heimdall wont bring it back
Click to expand...
Click to collapse
I tried this http://forum.xda-developers.com/showthread.php?t=1895500 but doesnt work for my cel, i try heimdall back to stock and neither, and a efs.rfs in heimdall for infuse 4g i didnt see it in forums so i dont know about that, and jtag services is difficult in my country Venezuela, so, i also have a efs backup and is the same,

Rockman EXE said:
I tried this http://forum.xda-developers.com/showthread.php?t=1895500 but doesnt work for my cel, i try heimdall back to stock and neither, and a efs.rfs in heimdall for infuse 4g i didnt see it in forums so i dont know about that, and jtag services is difficult in my country Venezuela, so, i also have a efs backup and is the same,
Click to expand...
Click to collapse
You have left out a lot of details.
Your question was originally about flashing another modem.
Then it turned to missing or corrupt emei.
Is hard to tell a problem when there is not enough detail about how you got there.
Aside from making sure you have the correct apn, until you provide further detail about what happen to your phone, it is unlikely you will have further inputs..
The original answer to your question about flashing another device modem on to the infuse: is not something I would recommend or attempt myself.

qkster said:
You have left out a lot of details.
Your question was originally about flashing another modem.
Then it turned to missing or corrupt emei.
Is hard to tell a problem when there is not enough detail about how you got there.
Aside from making sure you have the correct apn, until you provide further detail about what happen to your phone, it is unlikely you will have further inputs..
The original answer to your question about flashing another device modem on to the infuse: is not something I would recommend or attempt myself.
Click to expand...
Click to collapse
yes you right, i change the subject a little, but I had made a post with this problem and there was no response, so, I hope these details are sufficient:
_i was using the 4.2.2 rom slim 7.8 jb for a long time, then i took a trip to a mountain, poor coverage, so, theres a friend who take my cel and she put it in a box full of moisture and strong products such as alcohol (to cure) and it was a little wet and then when i got back to my city, i pass from poor signal to no signal, baseband unknown and ime unknown, but suddenly, every 4-5 days, the signal go back for a instant, and i receive old sms and missed calls, and i get back the baseband and imei for an instant, but then, gone again

Rockman EXE said:
yes you right, i change the subject a little, but I had made a post with this problem and there was no response, so, I hope these details are sufficient:
_i was using the 4.2.2 rom slim 7.8 jb for a long time, then i took a trip to a mountain, poor coverage, so, theres a friend who take my cel and she put it in a box full of moisture and strong products such as alcohol (to cure) and it was a little wet and then when i got back to my city, i pass from poor signal to no signal, baseband unknown and ime unknown, but suddenly, every 4-5 days, the signal go back for a instant, and i receive old sms and missed calls, and i get back the baseband and imei for an instant, but then, gone again
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Click to collapse
this may be hardware issues ex: sim card reader, sim card, connection in phone, antennae etc
especially true when it was running well and then you got it wet and it would read periodically
try disassemble all the phone parts completely, clean off all parts and connection with strong cleaner, dry it in silica, rice, beans for a few days and reassemble.

[Q] IMEI and Baseband unknown, doesn't recognize any sim card SGS4G

Hello guys, couple days ago I bought a SGS4G, the T-Mobile one, not sure if there's another versino anyways the model is SGH-T959V.
When i turned on the phone everything was alright, but it wasn't recognizing my sim card, so i thought it wasn't unlocked, but that wasn't the problem.
I checked the settings and the phone info and i saw baseband unknown, imei unknown, everything! so i did a factory reset, flashed to stock, got 2.3.6 rom on it. Nothing worked only thing that appears now is the MAC address, can someone please help me!? I'm really desperate and I need to use that phone, really need to use it!

DaveDudeM said:
Hello guys, couple days ago I bought a SGS4G, the T-Mobile one, not sure if there's another versino anyways the model is SGH-T959V.
When i turned on the phone everything was alright, but it wasn't recognizing my sim card, so i thought it wasn't unlocked, but that wasn't the problem.
I checked the settings and the phone info and i saw baseband unknown, imei unknown, everything! so i did a factory reset, flashed to stock, got 2.3.6 rom on it. Nothing worked only thing that appears now is the MAC address, can someone please help me!? I'm really desperate and I need to use that phone, really need to use it!
Click to expand...
Click to collapse
One click to stock
Sent from my SGH-T959 using Tapatalk 4

Cooptx said:
One click to stock
Sent from my SGH-T959 using Tapatalk 4
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Click to collapse
Can you please guide me thru it? or link a post with it?

http://forum.xda-developers.com/showthread.php?t=1358498
Sent from my SGH-T959 using Tapatalk 4

Cooptx said:
http://forum.xda-developers.com/showthread.php?t=1358498
Sent from my SGH-T959 using Tapatalk 4
Click to expand...
Click to collapse
already tried that...

https://www.dropbox.com/s/hupsicn666cq18h/1-ClickSGS4GOdin.zip

hi. don't sure how i fix this everytime i had this issue but a few days ago i encountered it again. took me some hours, done flashing to stock to restoring and so forth but still it was no good, still no signal because of unknown imei and baseband. then i re-read some things about this issue. finally it lighted up my mind and solved this.
http://forum.xda-developers.com/showthread.php?t=1480418 - The Definitive Noobs Guide to Flashing and/or Fixing the SGS4G! POST QUESTIONS HERE! by Juls317 said that Modem ([Mo]dulator [Dem]odulator) -> helps your phone interpret wireless signals sent from your cell network and wireless routers and also send data back to them (flashing different modems can help improve your cell reception) (thanks FB) . once i re-read this , i assumed that this is what i need to bring back my lost imei. (credits to him)
tried flashing a modem of galaxy s 4g and boom! the signal,imei and baseband of my phone came back.
so here's what I did:
I flashed a stock rom of galaxy s 4g. froyo or gb, doesn't matter which two. (via odin) check the pda then reboot
next, I flashed again via odin a bootloader with cwm. (check the bootloader and let it reboot)
then, flashed again via odin a modem of galaxy s 4g (i used kj6 cause i remember mine is kj6) check the phone then reboot
http://forum.xda-developers.com/showthread.php?t=1192436 - here's the link of modems by fbis251 (credits to him also)
the reason i flashed a bootloader with cwm is that i have a zip of sgs4g rom in my sd card which i'm using currently.
then i reboot into cwm and flashed my saved rom in sd card via install zip from sd card.
after that, i restored my backup in cwm and there my phone is, still good as my last backup.
i'm not familiar with using the adb terminal emulator so i don't know about those things they said about the efs folder in renaming the .bin files to recover the imei. sorry for not giving the whole step-by-step flashing things but i'm sure you'll understand some things i said especially those who uses Odin. hope this helps!good luck!

Cooptx said:
https://www.dropbox.com/s/hupsicn666cq18h/1-ClickSGS4GOdin.zip
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Click to collapse
FYI Cooptx........clicked the link......"nothing here"

CSP III said:
FYI Cooptx........clicked the link......"nothing here"
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Click to collapse
I removed the link.