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[Q] No network or sim card detected after flashing GB rom

After flashing a GB rom I am no longer able to access the T-mobile network. My sim card is no longer detected and I have absolutely no network connectivity. I have tried to flash back to froyo and back to other GB roms without any success. Any help would be greatly appreciated.

bat82 said:
After flashing a GB rom I am no longer able to access the T-mobile network. My sim card is no longer detected and I have absolutely no network connectivity. I have tried to flash back to froyo and back to other GB roms without any success. Any help would be greatly appreciated.
Click to expand...
Click to collapse
Check under phone info and see what your baseband version is.
There is a dumb little problem that I've seen pop up a few times where the IMEI goes missing and the baseband number with it... then this happens...

If the sim card isnt being read at all, as in (please insert sim), shouldnt matter with imei as imei has nothing to do with service. Even with a null/ 000000000 imei, calling, texting, data all works. Its probably your sim card tray.
If your sim card is read, but just no bars, etc, then try reflashing and factory resetting.
Sent from my SGH-T959V using XDA Premium App

My baseband version is "unknown" and my phone says I need to insert sim. If it is my sim card tray, then how do I get it fixed? Thanks.

Light-라이트 said:
If the sim card isnt being read at all, as in (please insert sim), shouldnt matter with imei as imei has nothing to do with service. Even with a null/ 000000000 imei, calling, texting, data all works. Its probably your sim card tray.
If your sim card is read, but just no bars, etc, then try reflashing and factory resetting.
Sent from my SGH-T959V using XDA Premium App
Click to expand...
Click to collapse
I had the same problem a month ago, and found a good handful of threads on it. Most of those threads also reported missing base band and imei. I resolved it by flashing back to 100% stock and starting over. Not saying it'll fix you for sure but it worked for me.
Sent from my SGH-T959V using XDA App

Had a similar issue a few months ago, flashed a different ROM and it went away. Not sure is it was a coincidence but recently upgraded to stock KJ6, everything was fine for a few days then all of a sudden no T-Mobile network/ Manually logged on, crappy signal, white 4G icon, calls dropping, I can hear caller, they can't hear me etc... Figured the network might be swamped due to Thanksgiving holiday, waited a day but it got even worse. My wife's SGS4G meanwhile continues to have great signal- not a sim issue as I swapped hers in to my phone and it still sucked. Called T-mobile tech support, new phone arrives this Friday. They blamed it on the upgrade to VUVKJ6, I wan't going to argue with them as I didn't have the phone insurance (I do on the new one) and they said that because it happened after the KJ6 upgrade it was on them .... it only cost me $20 for a brand new replacement.
I do have to say that T-Mobile customer service kicks ass.

Try flashing a different rom to see if itll fix the problem. The last resort would be resoldering. Try all other options first.
Sent from my SGH-T959V using XDA Premium App

Thanks for the replies. I tried flashing to 100 percent stock and nothing changes. It doesn't matter what I flash to or how many times I restore factory setting and wipe all user data. I always end up with a phone that doesn't detect the T-mobile sim card or the network. I requested an exchange for 20 dollars since my phone is still under warranty... I hope I will be able to flash to a different ROM next time without the same problem.

bat82 said:
Thanks for the replies. I tried flashing to 100 percent stock and nothing changes. It doesn't matter what I flash to or how many times I restore factory setting and wipe all user data. I always end up with a phone that doesn't detect the T-mobile sim card or the network. I requested an exchange for 20 dollars since my phone is still under warranty... I hope I will be able to flash to a different ROM next time without the same problem.
Click to expand...
Click to collapse
I seem to be in the same predicament after flashing KJ6.
Spent the whole day flashing different ROMs, to no avail.
Guess my only option is contacting t-mo, and see if i can get a replacement.
Will they know if i updated through Kies, or Odin?

i'm in the same boat. bought my phone unlocked through amazon two months ago and upgraded to stock KJ6 through Kies when tmo released it. worked fine until two days ago. SIM works in other phones, IMEI number looks good, APN settings look good. Haven't tried switching to other builds because all the threads I've seen here at xda and other forums seem to show that doesn't change anything.
didn't realize how much i liked my phone until i went to the backup motorola zine the last few days. bogus.

Before you send your phone back make sure it is 100 percent stock ROM and not rooted. Also, factory reset and wipe all user data.

bat82 said:
Before you send your phone back make sure it is 100 percent stock ROM and not rooted. Also, factory reset and wipe all user data.
Click to expand...
Click to collapse
Thanks.
I did know all that. Just wasn't sure of they could still tell I didn't do it through Kies.
Anyway, just contacted T-Mobile, and my new phone should be here Monday.
Awesome customer service.

My t-mobile exchange phone arrived and I upgraded to latest GB via Kies and then I flashed Dr. Honks latest kernel and everything works. No network or sim problems.

I am really happy with T-mobile customer service too. My phone arrived only 3 or 4 days after I requested an exchange. No questions asked.

From what I have been reading on the forums, it doesn't matter if the phone was upgraded via kies or flashed via odin. The phone just has to have 100 percent stock

Damn having the same problem,no sim card detected.No baseband,no IMEI.Went stock via Odin,nothing.Went to stock Froyo and still nothing :-(

sgs4g, same problem...only mine im sure is the sim tray. this was a refurbished phone i bought from craigslist, brand new.
stock froyo, gb, rooted ocataine, doesnt matter- every few weeks it would say insert sim..
Now im just gonna call and tell them it happened after the upgrade because it was there faulty phone to begin with.. now how can i go back to perfectly stock? and does that mean i should send it back on froyo or gb?

I've had/am having this problem. I brought my phone to the UK and I had this issue when I tried a new carrier. 3 weeks ago I was able to plug my phone in to the charger and then put it in airplane mode and out and I had no issues until I tried a 3rd carrier today and now the issue is back and my previous fix isn't working. Because I'm not using T-mobile and bought the phone off of a friend I'm hoping I can find a way to fix this without sending in my phone because that really isn't an option.
---------- Post added at 06:53 PM ---------- Previous post was at 05:56 PM ----------
after looking around a bit more and flashing a few roms unsuccessfully I found this http://forum.xda-developers.com/showthread.php?t=1323973&page=6
I removed the battery and sim from my phone for 10 min. Put everything back in, booted and everything is working as it should be. Hope this helps.

Glad you found the battery fix, I have stated that fix in a couple of threads, and started a thread called No carrier signal + IMEI problems = Take out your battery, but it has been pushed down like 3 pages cause no one comments on it.

rafikis said:
I've had/am having this problem. I brought my phone to the UK and I had this issue when I tried a new carrier. 3 weeks ago I was able to plug my phone in to the charger and then put it in airplane mode and out and I had no issues until I tried a 3rd carrier today and now the issue is back and my previous fix isn't working. Because I'm not using T-mobile and bought the phone off of a friend I'm hoping I can find a way to fix this without sending in my phone because that really isn't an option.
---------- Post added at 06:53 PM ---------- Previous post was at 05:56 PM ----------
after looking around a bit more and flashing a few roms unsuccessfully I found this http://forum.xda-developers.com/showthread.php?t=1323973&page=6
I removed the battery and sim from my phone for 10 min. Put everything back in, booted and everything is working as it should be. Hope this helps.
Click to expand...
Click to collapse
The link you posted is no good, can you tell me where it was at? Also what are all of the steps to get SIM or IMEI working again just the remove SIM and Battery for 10 Minutes?
There are a lot of people who flash custom ROMS on Telus, Rogers, Wind and T-Mobile who have this problem and if what you are saying works then that needs to go viral. What is strange is that some have the issue same ROM and Phone and others don't it's a hard issue to try an troubleshoot to say the least.
Any more info on this subject would be awesome bro.
Thanks,
Jk

Help!! No Voice, No Data, No Connection of any sort (except WIFI)

Hi everybody. Hopefully I am posting this in the right section. I have a Tmobile G2x running CM7 nightly 201. I purchased the phone new (ebay) a couple of months ago. The phone has run relatively smoothly since CM7 installation, until yesterday.
Then, suddenly stopped connecting to the voice, data networks. It will connect via wifi, but would not connect/register for data or voice. It is driving me crazy and is now essentially useless. I have tried to reinstall CM7, I performed system restore to stock rom but the problem persists. It must be an issue with phone since my sim card would work in a different phone, and other sim cards will not work on my G2x.
I have tried to use GetRIl to change baseband. I am now running M6600A-SCAUNTZ-2.0.9720T 1 and I am back to stock rom.
Not sure if there is any way to solve this issue. Should I just resign to buy a new phone? Any solution/setting that I am missing? Can I send back to LG/tmobile a phone which has ClockworkMod Recovery on it? Sorry for the many questions.

You said you went back to stock rom, but did you do a complete restore??
Sent from my LG-P999 using xda premium

italdream said:
Hi everybody. Hopefully I am posting this in the right section. I have a Tmobile G2x running CM7 nightly 201. I purchased the phone new (ebay) a couple of months ago. The phone has run relatively smoothly since CM7 installation, until yesterday.
Then, suddenly stopped connecting to the voice, data networks. It will connect via wifi, but would not connect/register for data or voice. It is driving me crazy and is now essentially useless. I have tried to reinstall CM7, I performed system restore to stock rom but the problem persists. It must be an issue with phone since my sim card would work in a different phone, and other sim cards will not work on my G2x.
I have tried to use GetRIl to change baseband. I am now running M6600A-SCAUNTZ-2.0.9720T 1 and I am back to stock rom.
Not sure if there is any way to solve this issue. Should I just resign to buy a new phone? Any solution/setting that I am missing? Can I send back to LG/tmobile a phone which has ClockworkMod Recovery on it? Sorry for the many questions.
Click to expand...
Click to collapse
Have you tried a full wipe?
Sent from my LG-P999 using xda premium

did you pay your phone bill?

Thanks for the quick reply. I tried restoring to original stock, then erasing all user data. I also tried several times wipe data/factory reset from ClockworkMod Recovery menu. Unfortunately no solution.

Wow, have you tried working as a comedian for a living?

May not be what you want to hear, but it is possible the seller sold you a stolen phone and it has be blocked. You may want to go to T-Moble and have it checked out.

GTWalling said:
May not be what you want to hear, but it is possible the seller sold you a stolen phone and it has be blocked. You may want to go to T-Moble and have it checked out.
Click to expand...
Click to collapse
Thank you. That would at least make sense and I would report it to seller/ebay.

GTWalling said:
May not be what you want to hear, but it is possible the seller sold you a stolen phone and it has be blocked. You may want to go to T-Moble and have it checked out.
Click to expand...
Click to collapse
This, maybe. Also try getting a new SIM card from tmo.
Also, check the IMEI before buying used phones. Even if your phone doesn't happen to be stolen, this is still a good idea.

Thanks. The phone was new from a 100%, long-time Ebay seller. Is there any official website to check for validity of IMEI?
I am going to check with T-mobile but there is also a thread showing other people with similar issue. http://forum.xda-developers.com/showthread.php?p=17660686
Unfortunately, no solution posted. If anybody else has comments/alternative solutions, they will be greatly appreciated.

"No sim" issue on Skyrocket

I've been using NexusMod on my Skyrocket for a few weeks now, and all of a sudden while walking around in the mall today, my phone said "no sim" while it was low on battery.
I couldnt' do anything about it, but by the time I've gotten home, I've looked up everything about a "No sim" issue, and tried the following:
reflash to Buoyancy 1.3.1 (GB) via restore
flash to different radios, then back to UCLA, then to Rogers, then to Telus, back to Rogers, and every other combination
restore to stock via Odin
after restoring to stock, reflash the original K7 radio (when it didn't work)
more various flashing of roms and modems
Ultimately, nothing has worked. I've tried putting a piece of paper to force better contacts, and obviously switching sim cards which didn't help.
I've noticed some other people had this issue, but it looks like flashing the T-mobile modem worked, but didn't work for me. Any other tips or experiences?
Thanks in advance!

You try giving the carrier a call to reset the signal?
Sent from my I727

Called up Rogers, they asked me if the SIM worked in another phone (which it does because I'm using my SIM in my old HTC to call) and they said it's not an issue on their end. Not to mention they weren't too eager to help fixing a phone I didn't buy from them.
Anyways, it's been brought back to stock now, using the sammobile (also tried the XDA tar) and neither fix the issue so it's probably a hardware problem unless someone can suggest otherwise.
I've tried the Blaze, Tmobile, Telus, Rogers, and various AT&T (UCLAx, UCLDx) modems to no avail against a combination of ROMs.
Oddly though, occasionally on certain radios, I noticed it would show a reception bar, but also say no sim at the same time. It doesn't happen in stock GB, as it only says no sim and then a "x" on the reception bars.
I'm sure it's a one-off issue, but can't say I'm impressed with Sammy right now given I've had the phone for only 4 months and it's never been abused.

It does sound like a hardware issue but for future reference for when you call rogers:
Don't tell them you didn't buy the phone from them.
When you ask them for help, say x isn't working so can you do y. They will say have you tried this, this and that, say yes and get what you want.
This is the only way I have survived rogers since inception (long time customer helps too I guess).
Sent from my I727

This may sound crazy to you but from many years of experience with electronics and in IT I would say that since it sounds like a component failure or loose contact I would say try gently tapping it with the battery out and reboot. If under warranty tap a bit harder
Just my opinion please no comments if you disagree...

Turns out the sim card tray was loose. Samsung wouldn't fix it saying this is not a warranty item and wanted to charge $120 to fix it or $35 just to return it to me.
Luckily, after complaining, rogers graciously footed the bill since the phone is less than a year old, though the Hup period got extended 6 months (but not my contract)
Kudos to rogers but shame on Samsung for not taking care of its customers. Aside from day to day use, the phone was never abused nor was there any external physical damage. Not sure how they reached that conclusion. Sure it might have slipped out a pocket or what not over the few months I used it, but it should be able to withstand abuse from daily use. my old HTC Evo 3d withstood a hell of a lot more damage than that, I dropped it down a flight of concrete stairs that dented the entire side of the phone. it worked perfectly fine until I lost it. I am sure I will get a lot of heat from the Samsung fans here but I can't help but vent my frustrations.
To think I supported Samsung by buying a GS2 for my wife and I...
Sent from my A1 using Tapatalk

try this or other plp that have this problem try this pliz an coment
laua said:
I've been using NexusMod on my Skyrocket for a few weeks now, and all of a sudden while walking around in the mall today, my phone said "no sim" while it was low on battery.
I couldnt' do anything about it, but by the time I've gotten home, I've looked up everything about a "No sim" issue, and tried the following:
reflash to Buoyancy 1.3.1 (GB) via restore
flash to different radios, then back to UCLA, then to Rogers, then to Telus, back to Rogers, and every other combination
restore to stock via Odin
after restoring to stock, reflash the original K7 radio (when it didn't work)
more various flashing of roms and modems
Ultimately, nothing has worked. I've tried putting a piece of paper to force better contacts, and obviously switching sim cards which didn't help.
I've noticed some other people had this issue, but it looks like flashing the T-mobile modem worked, but didn't work for me. Any other tips or experiences?
Thanks in advance!
Click to expand...
Click to collapse
posibble solution pliz do and comment this can help alot of plp
http://forum.xda-developers.com/showthread.php?t=2099609

[Q] MVNO Selectel Issue No Voice Roaming / Can't update PRL

Question about Selectel Flash. Selectel Sims etc. I apologize up front if this is the wrong section for this thread. I posted as a reply in the General Section Thread about MVNO's but I believe that thread is dead or closed. If this breaks any rules of XDA please let me know and delete this thread. If is is forbidden I apologize up front. And I know this is a TLDR post, but please if you know anything about these matters, please read this post if you might be able to help. And if you just need some info about someone's experience trying to get cheap android phone service keep reading. Maybe you'll learn something from me.
I let a local selectel "dealer" flash my phone to Selectel a while back in Jan sometime. About a month or so later he had to re-flash the phone. Because I couldn't make calls at all. He said this was because the guy working for him did the flash incorrectly and so he fixed it. After reading up on Flashing a bit but still not knowing enough about it, I decided to start using a partition backup tool from the store to backup a slew of partitions including EFS, and all the Modem* partitions. I backed up a bunch of others as well, just not data, system, or cache. He left the VZW sim in.
Now since then, I've flashed a number of roms. And sometimes I'd have an issue where my number and other info in status would be gone. At this point I restore EFS, usually just this one partition and everything would be back to normal. Selectel Number and everything else would work. Now I'm having this issue again but my info is in there. This time, I can't make or receive calls or texts in my home "roaming on a regional tower" area. This always worked fine before. Now at home it says Voice out of service / Data in service. This is at home. When I drive 20 minutes up the road to some different but still not verizon towers I believe, I can make and receive calls just fine. Also in the guys shop using his extender, I can make and receive calls fine. He gave me a T-mobile sim, for what I don't know, but this didn't fix anything. Now he's expecting to receive his selectel SIMS and says that might fix my issue. If not I'll have to do another flash. I can't afford to pay for another flash, being laid off work and unemployed I can barely afford the 15 dollar plan for selectel.
Anyway, I'm wondering if anyone else has came across this issue, and if so do I need to reflash? Is there a way I can fix it myself? I have downloaded a bunch of tools for windows mostly (I use linux mainly, but dual boot into windows for AutoCAD and other things that just don't work well in Linux). I've seen a ton of flashing tools online as well many of which seem to do the job automagically almost. Any suggestions? I was thinking PRL.. Of course, but after reading the first few posts of this thread, i saw the don't try to OTA program information. One guy at the store actually recommended doing that but I didn't. he said *22891 to update roaming which I think is the PRL.
Any Help will be appreciated as always. If anyone here can fix it remotely cheap, let me know. Also, he's blaming my Kitkat rom. I've used this KitKat and others in the past with no Issue at all. But for ****s and giggles, I restored a TW 4.3, the latest Alliance Rom, to no avail. it does the exact same thing. I can use the phone in town or near an extender but not anywhere that I might roam.
Thanks a bunch.
griz
Update since my original post:
I've talked to both selectel and the local selectel dealer, the dealer said his selectel sims are in but won't be ready for a few more days. I'm guessing but don't know for sure, that this could fix my isssues. I doubt it.
I restored a nandroid of a stock based rom (alliance), to try to update the PRL over the air a while back while I was in an area where I knew there would be Verizon towers. It wouldn't update because I didn't have a sim inserted. The dealer took my Verizon SIM and gave me a t-mo sim which didn't help anything at all. I stopped by there Sat 05-23-15 and he gave me a verizon sim to see if it would update using his network extender. I do know he does activation over the extender because I've been there when he's done this. He activated a dumb phone in this manner. I'm very frustrated at this because I need a permanent number to use for job contacts and my home based business doing freelance IT work. I'm not 100& sure the PRL is the issue but it seems that way because I can make calls and receive texts as soon as I get near a VZW tower or extender. At home however where there's only a regional carrier called Appalachian Wireless, it just roams, and says Voice out of service / Data in Service. And as soon as I get away from a Verizon Tower the phone will say this in About Phone / Status.
All my original data should be there because everything show's up correctly in About Phone, My IMEI, MEID, MIN, and Number are correct. He did have to flash the phone to get it to have 3g, so the MEID that shows up isn't for an S3. My IMEI is the one that came with the phone. I asked him and selectel about the legality of flashing the phone and having a donar MEID number or whatever and both said that's fine. They acted like it was completely legal, I'm not so sure. But again, both Selectel and the Dealer told me it was Okay to do that.
I've found some software on here that I can use to update my PRL with a downloaded one but I didn't know what SPC to put in for Selectel I know that with VZW it's all zeros's. Selectel customer service couldn't tell me this and told me to ask the dealer, I did and he said I could use all zero's as well.
I'm wondering if anyone has any suggestions at all, and if you think that once I get a Selectel SIM if it will work. The local dealer told me after I asked, that it would contain all my information, like those numbers I mentioned before and that it could fix it, but of course he says I've messed it up by flashing my phone. The thing is. I have lost all my info after flashing a rom in the past. However, I use a partition tool to backup EFS and other partitions and when I restore the EFS, (from when it was working and roaming), everything worked fine. Also, I know that I've used the rom he questioned in the past with success. I've tried Nameless, Slimroms, Liquid, and a few Lollipop roms with success as long as I restore the aforementioned data when necessary. Doing nvrestore (I had already done nvbackup long ago), doesn't help,. in fact it wipes everything out and I have to manually restore the EFS partition.
I understand that the PRL isn't the answer to everything but it's the only thing I can think of that would affect roaming. I have read that you shouldn't do any kind of OTA activation using *22890 *228 and so on but that I can use *22891 according to both Selectel and the dealer. The dealer wants to reflash the phone for 35 dollars which I can't afford at the moment. I can barely scrape up the 15 dollars for the cheap selectel plan.
On antoher note: I tried using an X2 with tracfone which worked great but wouldn't roam either. Kinda like what i'm experiencing right now. After calling Tracfone, I was told that none of the BYOP Android phones would roam. And one of their reps said their android phones like the Moto E wouldn't roam on non vzw towers either, because before I had my sgs3 flashed to seletel, I was going to get a Moto E Tracfone from Ebay with 2000 minutes and a year of service for 89.99 when they first came out. I didn't want to spend the money on it if it wouldn't roam. Does anyone know if this is in fact true, I can't see tracfone selling android's that won't roam. But I suppose they do. I was then told when I got a partial refund from Tracfone that only their Dumb phones would roam on non-vzw towers but again, this doesn't make good business sense nor does it make asnse at all. I've found a decent Net10 android at a dollar store (Moto E) I believe, for 79 on sale, but again, if it won't roam then it's worthless to me. Any Experience with this? I've searched and searched the internet for information on this subject to no avail. Especially the "Voice out of Service / Data in Service" message in Status.
Again, if I'm not in the correct section please let me know. Finally, I'm very sorry I'm so long winded. but those that know me know I'm long winded in every post I put up here. Sorry about that. I know I know TLDR, but I hope someone reads this and knows a thing or two about this.
Thanks once more.
griz

Credo Mobile ROMs

Hey guys, I've been searching for a new ROM for a while now, I was running pure nexus on 6.0.1 but obviously that's been updated and that's where I ran into my issue. Pure nexus seemed to work fine for me and all was well but, slowly as the ROM became outdated and everything moved onto 7.0 my battery life and quality seemed to get worse and worse. Eventually my phone was randomly turning off at 60-70% battery. So, I figured it was time for a new ROM however, when I installed the Nougat version of pure nexus I was unable to receive cell service and data. Now I'm assuming this is due to the fact that my phone is tied to Credo Mobile, for a carrier and they have some funky proprietary firmware they put on their phones. So my question is, does anybody that is on Credo know of any ROMs that might work on our phones, and/or does anybody know what could possibly be going wrong? I've tried quite a bit of troubleshooting, flashing the stock bootloader and radios, editing my APNs to match the ones I could find online for Credo, I've tried multiple different ROMs including OctOS, Carbon, Zephyr, CM, and many more, and of course the other troubleshooting options such as updating recovery, supersu, etc. I am completely stumped, and any help is appreciated. Thanks!

Every nexus phone comes unlocked even when purchased from a carrier, so there should not be any proprietary firmware on your phone from the carrier. My guess is your EFS got messed and thats why you arent getting any cell service. Goto settings and check if your IMEI is displayed. If it is a 0 then your EFS is the problem. Also did you revert to the latest stock version and see if the problem still existed? It can be found here : https://developers.google.com/android/images#hammerhead

I'm fairly certain my service still works on stock, I haven't checked in a while, but I'll do that just to be sure. I doubt all of that really helps but I figure you know more than I do haha. To further explain I also seem to be able to proc my service to work when I switch airplane mode off and back on again, but only for a couple seconds and it craps out after that. It at least detects the SIM card, but no service whatsoever. I'm thinking it could possibly have something to do with the APNs but, I've tried so many different combinations of different Credo APNs online I'm not sure that's actually what's wrong.
Edit: I should also add that on the Credo SIM card under mobile networks in the settings there are carrier settings where you can choose to update your PRL and update your Profile. When I do this the PRL successfully updates but the profile update gets stuck on "The network is preparing your services."

Okay so I reverted to stock and after successfully updating my PRL and Profile I was able to verify service and data are working perfectly. Getting an average of 4-5 bars.