No network and Imei 0/00 help! - AT&T Samsung Galaxy S II Skyrocket SGH-I727

Ok, i know they are many topics like this but i have read almost everything and still have the same problem...Let's star the whole history:
I have a sgh i727 skyrocket (obviously) and at first it was just the phone network signal that comes and goes...Later i decide to google search the problem and try some solutions....None of them works...worse, after that, i see not network and the imei 0/00. Ok no big deal, just reflashing with odin to the last official rom JB 4.1.2 with the clean instalation (wipe everything). Same issue!!!! I have try almost everything, EFS repair, apk from play store like sgs tool, gsII repair...Flashing Radio I727UCMC1...I have even try NV_reader/writer but no resullts...Nothing works...
So please help!

Dang the only thing that I thought would have worked was NV_read/write but you tried that......if you go to sammobile and go to unlock a device and pick your phone they have a option for imei repair, that's the only thing I would think that would help
Sent from my ATT Samsung Galaxy SIII using TapaTalk

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[Q] captivate radio set wrong after flashing t-mobile ROM by accident - no backup

so like a kid in a candy store i got ahold of ROM manager and ODIN and started flashing cool looking roms..next thing i know, the t-mobile logo is popping up and i am a not-so-proud owner of a modded T-Mobile Captivate, no longer an ATT Galaxy S!
of course the t-mobile network uses different frequencies and the like, so the phone part of my phone stopped working...bummer! i grumbled as i flashed back to a ROM that worked with the ATT network (FUSION it is called) but apparently that ROM does not mess with the internal network settings thats why it worked so well initially it didnt change the stock cell internals...
so now i have a hybrid phone, half-tomobile half-att half Fusion, and it only picks us signals from the Edge network!!! i barely get any reception so it pretty useless...
so i need some help...i can i get this beast back into a condition where is will work as an ATT galaxy?? also, for whatever reason i cannot mount or download market apps to the phone tho it does pickup wifi connections...
any help/ideas appreciated...advTHANKSance!
- mark
Flash back to stock with odin 1 click. Or try just flashing a new modem with cwm.
Sent from Serenpitidy x.x
ok...i finally fixed the mess i made by using this process...
manually set the modem/APK using this guide...may or may not have been needed in the end...
http://www.wireless.att.com/answer-center/solutionDisplay.jsp?solutionId=KB110934
reset the phone to factory using this thread...
http://forum.xda-developers.com/showpost.php?p=10056254&postcount=36
note..i used the old I897UCJH2 Firmware but the plan is to upgrade to JH6 tonight...
did a factory reset on the phone and BINGO...full working baseline phone. thanks for the help guys what a great site u run

Skyrocket No Sim Issue PLEASE HELP ANYONE!

Ok guys,
I just bought a skyrocket today, unlocked it to Tmobile. Phone worked great for a while, then I rooted it using doomlords easy root method. The Phone restarted, ever since my sim is not working. I tried EVERYTHING. My sim is working in my brothers skyrocket, its not my sim card. My IMEI and everything else is visible, my baseband is visible. I tried everything I did a factory reset, I flashed to sky ICS successfully and still no luck.... I've been at this for 5 hours now, someone ANYONE please help me! What do i do?
Does your brothers sim work in your unlocked rocket? Maybe try odin back to full stock and see if it works
Sent from my SAMSUNG-SGH-I727 using xda premium
is your sim not working or your data not working ? Those are 2 different issues. Does it day invalid sim. Or no sim . Or is your data just not working
I've had a similar issue while running Sky ICS where it told me to insert a sim. Try flashing a t-mobile radio and see if that helps. I believe someone posted the t-mobile KL1 and the Telus KJ3 radio on one of the other threads that worked for me.
Did you ever get it working? My brother is having this same issue on a skyrocket I just sold him. Just says NO SIM. He tried flashing the t-mobile radio's but that didn't work, and is actually what caused it to start saying no sim.
Another thing...did your skyrocket ever show a yellow triangle after rooting? His didn't, and I thought they should show a yellow triangle at the startup after rooting like other samsung phones.
gdawson6 said:
Did you ever get it working? My brother is having this same issue on a skyrocket I just sold him. Just says NO SIM. He tried flashing the t-mobile radio's but that didn't work, and is actually what caused it to start saying no sim.
Another thing...did your skyrocket ever show a yellow triangle after rooting? His didn't, and I thought they should show a yellow triangle at the startup after rooting like other samsung phones.
Click to expand...
Click to collapse
I never got a yellow triangle after rooting my Skyrocket. and I had that issue with the sim. What I did was delete the APN and redid the APN manually. If on tmobile let me know, Ill get you the APN or you can google it. Also, I use the Juggernaunt 5.0 ROM...worked like a charm. BUT..I did notice that Im not gettin full 4g speeds as I thought...but faster than edge!
So you had a No Sim issue, but it resolved by deleting and manually setting the APN? I'll try that tomorrow, hope it works.
So I fixed the no sim issue...I changed the radio...and it recognized sim but still wouldnt let me set the mobile network and connect to any network (no calls, or internet). So I tried Juggernaut with a tmobile radio...had to manual select tmobile as the mobile network...super poor internet speeds...only 2g.
So I adjusted the bands (dial *#2263#*) to WCDMA 1700, and now I get full 4g speeds (~3500 kilobits per second from a speed test). Woohoo! Thanks everyone.
No Sim Error
Hi, I am also facing simillar problem. No Sim Error.
Can you please provide the step by step instructions on how to fix this?
Thanks..
try this or other plp that have this problem try this pliz an coment
desiroxta said:
Ok guys,
I just bought a skyrocket today, unlocked it to Tmobile. Phone worked great for a while, then I rooted it using doomlords easy root method. The Phone restarted, ever since my sim is not working. I tried EVERYTHING. My sim is working in my brothers skyrocket, its not my sim card. My IMEI and everything else is visible, my baseband is visible. I tried everything I did a factory reset, I flashed to sky ICS successfully and still no luck.... I've been at this for 5 hours now, someone ANYONE please help me! What do i do?
Click to expand...
Click to collapse
try this possible solution plz and coment to help others
http://forum.xda-developers.com/showthread.php?t=2099609
4italia4 said:
try this possible solution plz and coment to help others
http://forum.xda-developers.com/showthread.php?t=2099609
Click to expand...
Click to collapse
The OP was 10 months ago...
It's good that you have a suggestion as others may be facing the same problem, but the specific users from this thread probably no longer have the issue / have moved on
------------------------------------------------------------------------
Sent from my Skyrocket i727 w/ Blinky'sRevenge
-----------------Nexus 7 running AOKP M1-----------------

[Q] Verizon Galaxy S3 Roaming Issue

Hello, this is my first time posting on the forums here.
Recently I flashed the latest version of MIUI on my Verizon Galaxy s3. I decided that I preferred my previous rom; Jelly Bean's Build 10, and I restored it to my phone. After restoring the rom, I got a message saying that I was roaming, even though I am still in the same area where service has been working flawlessly. The first thing I tried to do was change the network type under network settings to LTE/CDMA but that choice was already selected. Thinking that I had no other options, I restored the stock rom that I had backed up on my device and I got the same issue. Thinking I could just send the phone back to Verizon, I unrooted the phone using the built in unroot tool in SuperSu Pro. I am now unrooted, but forgot to reflash the stock recovery (I am still using TWRP). I am just wondering what I should do about the issue, and if I were to send it back to verizon, would they be able to tell that I have a custom recovery. Sorry for being a noob and any help would be much appreciated.
Update: I rolled back to my rooted stock ROM and I used triangle away to reset the custom flash counter. I have also reflashed the stock recovery onto my device. Even though my phone appears to be unmodified I still have the same issue.
Sent from my SCH-I535 using xda app-developers app
there are SOOO many threads about how to fix the roaming issue it's not even funny....
^^^^^what he said!
This happened to me and what I had to do was ODIN to stock ICS rom and enter the code to reprovision sim. Google/forum search is your friend.
This is why Verizon locks down their phones! People who are not willing to search for a way to fix something that they screwed up is unacceptable. The bad thing is this phone is completely fixable with very little effort! Some people should not be allowed to flash anything!
I've dealing with so many issues ever since the DroidX so if there is one thing I've learned is there is ALWAYS a fix you may just need to do a little search if you can't find the resources your looking for on any of forums a simple google search will help you out.

[Q] Unrecognized SIM card

Hey guys,
So I got a quite annoying problem and I already spent quite some time searching the forums and google without results. Either the solutioins didn't work or the cases I found were unsolved.
Anyway, here is the story.
I have a xperia tipo (st21i) and I rooted it and unlocked the bootloader and flashed several kernels and roms to find the one I'm most comfortable with.
I used: CM 10.0, paranoid android, super jelly bean and performa v4 in case this is of any interest.
I decided to go with cm 10.0 and it worked fine until after one reboot suddenly my SIM card was unrecognized and it said I should restart the phone with a valid SIM card. I flashed different ROM's and went back to stock now but the problem persists. I really ran out of ideas and since I'm not really skilled and rich of knowledge beyond the point of flashing and the rough structure of android I'm a bit helpless here.
Any help is really appreciated and thanks in advance
P.S.: first post
I don't know if it would work but you can try it
Try flashing ics ftf it should work fine..
follow this may work
first flash the original .ftf file then flash cm10 :fingers-crossed:
This happened to me aswell, but it was a while ago, when I wasn't even rooted yet. Went to the shop to ask about it from them and they said SIMs can go outdated or something.. They gave me a new one and it was fixed. But if you decide to ask them about this, make sure you are on stock ROM and locked bootloader, also unrooted. Because if not, your device isn't under warranty, and they can blame it on that
Sent from my C1505 using XDA Premium 4 mobile app
SmashMii said:
This happened to me aswell, but it was a while ago, when I wasn't even rooted yet. Went to the shop to ask about it from them and they said SIMs can go outdated or something.. They gave me a new one and it was fixed. But if you decide to ask them about this, make sure you are on stock ROM and locked bootloader, also unrooted. Because if not, your device isn't under warranty, and they can blame it on that
Sent from my C1505 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
So you are saying it's due to my SIM? It still works perfectly fine in my other phone (a samsung galaxy xcover s5690). The phone was used when I got it and I don't have any receipt or anything so I don't have warranty on my phone anyway right? Should I still visit a shop?
I also tried ICS and it didn't work either. I got the ftf file from that link : http://forum.xda-developers.com/xperia-j-e/development/rom-official-st21a-america-firmwares-t2302630
I tried flashing different kernels and roms already even after it refused to take my SIM but nothing helped. It didn't fell down or anything so I don't think anything went loose inside. Could it still be due to hardware failure?
heeey
I got almost the same problem
few weeks ago i found this thread http://forum.xda-developers.com/xperia-j-e/development/sony-xperia-tipo-dual-t2594389
about making custom roms works tipo dual by making it 1 sim not 2 well its ok with me so i used it and all was perfect
custom rom - working gsm - fast - smooth like i dont need anything else
but yesterday well my annoying gf was spamming calls while i was sleeping so i turned airplane mode On
then after i wake up i turned it off and suddenly the device can't recognize the sim any more the same problem this dude got
so i tried everything like tryin to swap the sim place - installing new rom - restore my old stock rom - hard reset - testing the sim - so i tried installing the last update stock ftf which is 11.0.A.6.5 i think it's like this using flash tools anyway it worked and the problem is solved now the phone is workin with no problems u should try it
DreamingDude said:
So you are saying it's due to my SIM? It still works perfectly fine in my other phone (a samsung galaxy xcover s5690). The phone was used when I got it and I don't have any receipt or anything so I don't have warranty on my phone anyway right? Should I still visit a shop?
I also tried ICS and it didn't work either. I got the ftf file from that link : http://forum.xda-developers.com/xperia-j-e/development/rom-official-st21a-america-firmwares-t2302630
I tried flashing different kernels and roms already even after it refused to take my SIM but nothing helped. It didn't fell down or anything so I don't think anything went loose inside. Could it still be due to hardware failure?
Click to expand...
Click to collapse
I tried other phones aswell, it was working on them, but not on my phone. Weird, but yeah, I suggest you go visit them at the shop, they can probably help you out.

[Q] galaxy note i717 rebooting and IMEI and baseband Unknown.

Hey guys I have an issue with a galaxy note I717 from AT&T, i just bought it from a friend of mine who reset to factory defaut settings and out of nothing the phone lost the IMEI, baseband and newtwork. it says it is unknown. besides that the phone kept reestarting every 2 min maximun, it would boot up to the main screen and give me enough time to check the settings, then it would reboot. I was looking for different roms arround the site and tried several differents, no matter witch one I used the phone will always reboot. I tried restoring to the GB aT&T stock rom, same thing, the only Rom to seem that fixed the reboot issue was a ICS stock room that is supposed to unbrick the galaxy, the phone stays on and everything but it still says no IME no basend no IMEI SV.
just to let you know I have tried several different modems, nothing works.
I am just wondering if you guys have any idea why the phone will only work with that ICS stock room and no otherone? and any possible fix to the IMEI?
thanks a lot in advance.
Hi there,
I see you already asked that in the correct forum here:
Lost IMEI, corrupted efs help!
Wait there an answer from the experts/owners.
Good luck

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