Develop Bugs

sim card not detected

whenever i flash anything even to root it when i boot back up it says sim not detected , says imei is null,and baseband unknown.my phone is unlocked but it just started being a problem recently .so i have been trying to do different things but always have to restore from back up.i am a flashaholic and i havent had any problems ever on this till now.

brentsalinas714 said:
whenever i flash anything even to root it when i boot back up it says sim not detected , says imei is null,and baseband unknown.my phone is unlocked but it just started being a problem recently .so i have been trying to do different things but always have to restore from back up.i am a flashaholic and i havent had any problems ever on this till now.
Click to expand...
Click to collapse
It would help to get more info on what you flashed and how you flashed it. Perhaps it's one of those wipe things or what not? Or restoring an app?
I get 'baseband unknown' on a few ROMs that I test flashed. I got it on JMT when I flashed it recently.
So you have to restore from the NAND backup just to get the phone working?

[Q] Insert Sim to Access Network Service.. IMEI Null

Hey Guys,
I have an AT&T Model SGH-1317 Note 2. For use on other networks, I unlocked the phone using the *#197328640# menu option. However, the phone failed to start the hot spot stating Mobile data was unavailable or Invalid Sim. However, I am able to tether perfectly using the same sim on an another S3 so I was sure its nothing to do with the sim or network operator settings.
I looked up and found XDA website with tons of information. I assumed my phone was locked by AT&T. Hence, I rooted the phone using CF-Auto-Root, backed up complete data using Titanium and using Rom Manager I installed the Crash Aroma 4.1.2 Rom. I wiped the data and cache 3 times as suggested. However, after the boot I am unable to connect to any mobile network. A Click on Mobile Network says "Insert Sim Card to Access Network Services". Dialling for IMEI number prompt a Null.
During Installation I noticed the Crash ROM has overwritten the Radio.. and I am assuming this is were the problem lies. but I leave it you experts.. Request Help!
Sunil.

What carrier are you using the device on?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

cdshepherd said:
What carrier are you using the device on?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Click to expand...
Click to collapse
Am currently on Du - A network in Dubai, UAE. I have been reading more forum information and some suggest that this may be related to the EFS folder getting corrupted which may cause the IMEI number to fail. Some suggest that there are software to rebuild this information by using the IMEI number behind the handset..
I also noted that my phone model has also changed to GT-7100 instead of SGH-1317, Wonder if the Crash ROM was apt?
Would you suggest installing a Jedi Rom specifically built for SGH-1317... or is the damage already done?

Back Online
Since I found no replies.. I had no choice but to give it to the Pros.. I handed my phone day to one of the Unlocking experts at a mobile store… He was confident that his technicians would resolve this. But after 2 Days, they have given up.. He suggested the phone would fetch me US$ 10 if someone used it as a demo unit at a mobile shop..
I was sure this was something to do with the Modem, IMEI and the all important NV folder. I was able to find a Stock ROM for the SGH-1317 and I also found a link at XDA about using EFS pro to change the IMEI.
Using Odin software, I flashed the phone with the stock rom. Unfortunately, there was one error when it tried to communicated on com1. Having no choice, I continued. Restarting got the AT&T style boot but it again froze on the Samsung screen. Dreading the communication error, I restarted several times with no results. Finally I realised if would be due to the cache and user data. I reset the phone to factor settings wiping out the user data and Whola.. The phone sprang back up..
Lessons learnt.. Backup your rom and data before playing with custom roms. Read Read Read and don’t flash in the middle of the night..
Since I am back online, I plan to stick to the stock and crappy 4.1.1 with all the AT&T dead weight. Will live without the ability to Tether until my fingers get warmer.. It won’t be long as I am already bit by the Custom Rom Devil..
Don't Give Up Easy..:good::victory:

Flashaholics anonymous will help.
Sent from my SGH-I317 using xda app-developers app

sunilgonsalves said:
Using Odin software, I flashed the phone with the stock rom. Unfortunately, there was one error when it tried to communicated on com1. Having no choice, I continued. Restarting got the AT&T style boot but it again froze on the Samsung screen. Dreading the communication error, I restarted several times with no results. Finally I realised if would be due to the cache and user data. I reset the phone to factor settings wiping out the user data and Whola.. The phone sprang back up..
Click to expand...
Click to collapse
Please I am having the very exact same issue and can't seem to have it fixed
Using CMW I also flashed it back to stock rom, didnt have any problem or errors doing it but im still getting No SIM Inserted. I have deleted cache and user data several times... Tried flashing CM10 and CrashRom see if they made a difference and still No Sim Inserted... tried 3 different kernels and still same issue

I have the exact same problem since yesterday. I've tried everything and anything to no avail. I'm very close to returning the phone.
I would really appreciate any input.

Same issue
I flashed crash rom 4.5, over the stock kernel and it gave me that same message. I've tried everything I could think of, which included everything in this thread to no avail... any further advice would be greatly appreciated.

imei null baseband unknown, {insert sim to access network error} PLEASEEEE HELPPP ME
i rooted using auto root and installed xposed framework and snapshare and snapprefs :crying:
after that i tried puttin off the airplaine mode and it didnt happen
then the error started to show insert sim to access network god i need help.

sukhraj kohli n7100 said:
i rooted using auto root and installed xposed framework and snapshare and snapprefs :crying:
after that i tried puttin off the airplaine mode and it didnt happen
then the error started to show insert sim to access network god i need help.
Click to expand...
Click to collapse
Your username suggests that you have the N7100 device ??
If so. ..you are in the wrong place for support. ..As this is the SGH-I317 section.
If you are showing IMEI NULL with no baseband you may have to restore your backup image to correct the problem. .
If no backup image exists. ..you will need to flash a factory N7100 image from your section.
Look for the return to stock thread for your specific device and that should fix you up...
The CF AUTO ROOT files are device specific. ..so I hope you haven't damaged the partitions.
Good luck. ..g
Edit:
This will help. ..and will place you in the right section. ..
Just go to page 1...good
http://forum.xda-developers.com/showthread.php?t=2230250

restoring efs with nvtools/qpst

hi guys, i flashed the lte modem on my phone and it seems that its wiped out my efs folders, ive been trying to restore my efs folder with nvtools and qpst, neither seems to work since somehow dm mode is not responding to them
any solns? ty in advance for any help
a couple of things:
ive already odin'd back to stock, no luck on restoring efs(perhaps im doing something wrong?) i dialed *#7284# and put it into the RNDIS+DM+MODEM mode, nvtools says phone failed to answer while QPST says that comm7(the samsung serial port) is not a phone
its pretty had to do this since the phone is rebooting itself every other minute

Questions and help issues go in Q&A
Thread moved
Thanks
FNM

Been there, sucks. For me to get out of the constant restarts I had to flash the lte modem again. Flash stock (odin) flashed cwm (odin), put the modem on my external sd card and flashed that.At least that way I could work on it a little. And below is basically what I did to finally get it to work. Hard to say all my steps as I was trying everything.
Well I dont really know how I got mine back to life, tried all the standard stuff from the threads,got my imei back but had no network,network type,service nothing helped. last resort I said whatever ill try anything now. Came across this
http://galaxynote2root.com/galaxy-n...3g4g-aws-bands-on-att-galaxy-note-2-sgh-i317/
whatever it did it restored everything (cold see carrier,network,etc)but corrupted imei, next i followed this guide
http://forum.xda-developers.com/showthread.php?t=1804117
If you need this is a complete no imei nv backup I used before flashing my imei with the generator
http://db.tt/4hunZ7qy
used the imei generator, then the writer (link on post does not work for the imei generator,so found it here
http://d-h.st/vVV
Wrote my imei back and presto, back in action. Fully functional again, including 4G
Like I said this was a last resort, but worked

AznDud333 said:
hi guys, i flashed the lte modem on my phone and it seems that its wiped out my efs folders, ive been trying to restore my efs folder with nvtools and qpst, neither seems to work since somehow dm mode is not responding to them
any solns? ty in advance for any help
a couple of things:
ive already odin'd back to stock, no luck on restoring efs(perhaps im doing something wrong?) i dialed *#7284# and put it into the RNDIS+DM+MODEM mode, nvtools says phone failed to answer while QPST says that comm7(the samsung serial port) is not a phone
its pretty had to do this since the phone is rebooting itself every other minute
Click to expand...
Click to collapse
Let me guess. You've git a Canadian phone
Sent from my Nexus 7 using Tapatalk 2

+1

got it fixed on friday, was so tired that i went to sleep
basically i followed someone's post on the forum(forgot name) and flashed the tmo modem, since the mct one always gave me the bootloop, then i enabled DM mode and finally got nv tools/qpst to recognize my phone, it appears that the issue was that the drivers does not recognize the new modems..
anyway, once i was done restoring nv, i flashed the tmo lte modem and paranoid android
now i have my imei back and i can use lte
although my bluetooth address still says unknown..not sure if normal

My bluetooth also says unavailable, I would think if you are not hooked up to bluetooth then it should say unavailable. Im to scared to flash the tmo lte modem again...

D850 cant connect to GSM. stuck at "No Service"

We had a few hours network outage due to security reasons. But my G3 didnt recover when the outage was over and is still stuck at "no Service" even after several reboots, clean flash of cloudy and restoration to stock using nandroid. It was working just fine a night before. I have tried restoring Stock from nandroid but still no luck. I have tried different SIM cards too but still no connectivity.
*#06# shows proper IMEI number.
Any clue what might be wrong and how to go about fixing it ?

salimbaba said:
We had a few hours network outage due to security reasons. But my G3 didnt recover when the outage was over and is still stuck at "no Service" even after several reboots, clean flash of cloudy and restoration to stock using nandroid. It was working just fine a night before. I have tried restoring Stock from nandroid but still no luck. I have tried different SIM cards too but still no connectivity.
*#06# shows proper IMEI number.
Any clue what might be wrong and how to go about fixing it ?
Click to expand...
Click to collapse
Update ::
OK So I looked around. my IMEI is correct. my wifi and bluetooth mac addresses are ok. but my baseband is shown as unknown. So i flashed a modem from here for v10D D850 and now I am not getting "No service" but still not getting any network

My suggestion is flash stock Rom with kdz or tot method. Look under general section and return completely stock.
Sent from my LG-D855 using Tapatalk

ceza1380 said:
My suggestion is flash stock Rom with kdz or tot method. Look under general section and return completely stock.
Sent from my LG-D855 using Tapatalk
Click to expand...
Click to collapse
OK so I am back to stock using TOT method. I have my IMEI, baseband and MAC addresses intact. Now it doesn't say No service rather it keeps on searching for signal and catches some from time to time but loses it again in a jiffy. Sim Toolkit is working fine so I assume SIM jacket isn't the trouble maker here.
search for signals :::: get a lock on :::: lose the signal :::: repeat
Any clues ?

Turn on airplane mode on and off. Factory reset your device from settings menu. It's a weird problem. It must be fixed after tot method.
Sent from my LG-D855 using Tapatalk

Are you using it on At&t? Maybe sim gone bad or imei blacklisted by accident.

Which ATT APN are you currently using?

I'm actually having this exact problem to right now, I flashed back to stock and I still receive no data. I've tried nextgenphone APN and the PTA APN, I also checked my IMEI and it's fine to.
Edit:
I'm using an AT&T LG D850
When I put the sim card into my Moto G, it picks up 3G and works.

Juex said:
I'm actually having this exact problem to right now, I flashed back to stock and I still receive no data. I've tried nextgenphone APN and the PTA APN, I also checked my IMEI and it's fine to.
Edit:
I'm using an AT&T LG D850
When I put the sim card into my Moto G, it picks up 3G and works.
Click to expand...
Click to collapse
Ok so after having my go at the phone i had it given for repairs. The guy said he has replaced antenna multiplexer ic which has solved the problem.

I am experiencing the exact same issue but with a D855.
I decided to go from stock to CM12.1. This didn't end up working. Stuck on Bootloop. I also tried Xenon HD and had the same issue. So I came back to stock. Now having this issue.
What I did was flash from 5.0 to 4.4 so that I could root. I was unable to on 5.0.
Then I rooted using LG One click Root.
Then I flashed the latest TWRP
Then I did a full clean in TWRP and flashed CM & GAPPS (same with Xenon)
When this didn't work, I flashed to stock using LG FLash tool.
I tried both the KDZ and TOT methods numerous times, also tried to re-flash CM & Xenon and had the same issues.
I also tried flashing stock 4.4 and 5.0 roms and still the same.
I have also done multiple factory resets after flashing.
If anyone out there has solved this issue without sending their phone away, please advise as I am at my wits end and without a working phone.
Thanks

salimbaba said:
Ok so after having my go at the phone i had it given for repairs. The guy said he has replaced antenna multiplexer ic which has solved the problem.
Click to expand...
Click to collapse
I think im going to have to do this also. Can you tell me the name of the repair shop you used? and about how much this repair cost you?
Thanks

godsreel said:
I think im going to have to do this also. Can you tell me the name of the repair shop you used? and about how much this repair cost you?
Thanks
Click to expand...
Click to collapse
Got it repaired from Singapore Plaza Rawalpindi for 3k. Shop name was X-cell

No mobile service available

Good morning, from yesterday evening I suffer this annoying problem on my HTC 10. After tried to install Xposed Framework, on the next reboot I have no mobile service. It appears, in the upper left corner, "no service available". If I try to remove the sim card, it says that there isn't any sim card. I've tried the RUU but nothing, tried to flash some custom roms but nothing. It seems like something being corrupted in EFS, the IMEI it's ok and not null. Any suggestion to solve?

saulos29 said:
Good morning, from yesterday evening I suffer this annoying problem on my HTC 10. After tried to install Xposed Framework, on the next reboot I have no mobile service. It appears, in the upper left corner, "no service available". If I try to remove the sim card, it says that there isn't any sim card. I've tried the RUU but nothing, tried to flash some custom roms but nothing. It seems like something being corrupted in EFS, the IMEI it's ok and not null. Any suggestion to solve?
Click to expand...
Click to collapse
Did the RUU format the phone? I would try a format of data with twrp then install RUU. If that doesnt work could be a simcard fault. Try another sim.

yldlj said:
Did the RUU format the phone? I would try a format of data with twrp then install RUU. If that doesnt work could be a simcard fault. Try another sim.
Click to expand...
Click to collapse
I've tried with format data before flashing RUU, yesterday late night, but nothing, still no signal. I have tried the simcard in an old Samsung Galaxy ACE and it works flawlessly.

Can you use data? If you can I would get your IMEI checked to see the status of it.
Do not post it online here has it is personal information.

Stephen said:
Can you use data? If you can I would get your IMEI checked to see the status of it.
Do not post it online here has it is personal information.
Click to expand...
Click to collapse
I cannot use data. Can I send you a private message to check my IMEI?

I have seen it be a bad IMEI if you can use data but not get any phone signal. That does not sound like the issue here.

Stephen said:
I have seen it be a bad IMEI if you can use data but not get any phone signal. That does not sound like the issue here.
Click to expand...
Click to collapse
If I send you my IMEI could you check if it's bad or not and if my issue it's IMEI related?

No it is best not to share with anybody. Just google search check IMEI and it will bring up a number of sites. One other thing is, if your s-off you could try flashing firmware to see if that helps.

I had this problem. Try flashing a stock RUU for your specific device. Shut down immediately following the flash, don't boot into ROM yet. Boot into STOCK recovery by holding volume down and power to get into download mode, then select bootloader, then recovery. Once in stock recovery do a factory reset from there. Then reboot the stock ROM and let it do it's thing, optimizing apps, etc. That should fix your problem.