Database Develop

[Q] Anyway to restore 100% stock

Please don't say Odin 1 click as it does not go 100% back to stock.
The nv_data.bin and bml3 device are not as stock. I have FFFFFFF where my unlock code used to be and my unlock code no longer works.
Master Clear and then JF6 restore doesn't change these either. I find it hard to believe there is no way to get 100% back to new.
Any ideas?

alphadog00 said:
Please don't say Odin 1 click as it does not go 100% back to stock.
The nv_data.bin and bml3 device are not as stock. I have FFFFFFF where my unlock code used to be and my unlock code no longer works.
Master Clear and then JF6 restore doesn't change these either. I find it hard to believe there is no way to get 100% back to new.
Any ideas?
Click to expand...
Click to collapse
Nandroid backup of rooted stock then unroot is probably the most effective.

gunnyman said:
Nandroid backup of rooted stock then unroot is probably the most effective.
Click to expand...
Click to collapse
I don't have a nandroid backup or I would do that

alphadog00 said:
I don't have a nandroid backup or I would do that
Click to expand...
Click to collapse
Well it seems like this Phone is a bit like windows 95 when it comes to wiping and reloading it. Bits and pieces of other installs are left over? Wish I knew how to help you. Perhaps someone out there has a completely stock nandroid they could send you. I know there's one for the Vibrant.

gunnyman said:
Well it seems like this Phone is a bit like windows 95 when it comes to wiping and reloading it. Bits and pieces of other installs are left over? Wish I knew how to help you. Perhaps someone out there has a completely stock nandroid they could send you. I know there's one for the Vibrant.
Click to expand...
Click to collapse
Yeah, but with any flavor of windows i can do an Fdisk and repartition.
I wonder if i can use standard odin and repartition? Anyone know?

gunnyman said:
Well it seems like this Phone is a bit like windows 95 when it comes to wiping and reloading it. Bits and pieces of other installs are left over? Wish I knew how to help you. Perhaps someone out there has a completely stock nandroid they could send you. I know there's one for the Vibrant.
Click to expand...
Click to collapse
I sent mine back to Samsung and they reset it -- when I get it back I can see if mine is able to be Nandroid'd if that'd help...

The Bishop said:
I sent mine back to Samsung and they reset it -- when I get it back I can see if mine is able to be Nandroid'd if that'd help...
Click to expand...
Click to collapse
Why did you send it back? I am curious how the /EFS directory gets built - it stores the IMEI related stuff and lock code data, but it doesn't get wiped with a Odin full restore.

I would think that if you put your phone in recovery mode, there should be an option to format the internal sd card. After you do that, just do a factory reset, and then run Odin One-Click back to JF6
Edit: There's not even a need for recovery mode. Go to Settings > SD card and phone storage > and then under Internal SD card you'll see "Format SD card".

miztaken1312 said:
I would think that if you put your phone in recovery mode, there should be an option to format the internal sd card. After you do that, just do a factory reset, and then run Odin One-Click back to JF6
Edit: There's not even a need for recovery mode. Go to Settings > SD card and phone storage > and then under Internal SD card you'll see "Format SD card".
Click to expand...
Click to collapse
Format SD card only formats the ~14GB that acts as an SD card that the user has access to. The 2GB that makes up all the system partitions is not touched. Some of it is rewritten when you do 1 click install - but not all.
With JF6 your NV_data.bin is not created like the original and the IMEI and BT files are dated from June - so the EFS partition is never rewritten. Maybe if you delete it is recreated, but i doubt it.

alphadog00 said:
Why did you send it back? I am curious how the /EFS directory gets built - it stores the IMEI related stuff and lock code data, but it doesn't get wiped with a Odin full restore.
Click to expand...
Click to collapse
I bricked mine trying to go to Froyo. They sent it back to me with JH7 so no go :/ Sorry.

did anybody try calling att if you are a att cust they will give you the code for free.
over on the i9000 forum they say when froyo first came out if you left your sim in the phone when you flashed it would relock your phone.
can anybody verify that if they goto froyo with a unlocked captivate without the sim do they still get locked.
if so it might be a measure to prevent people from messing with the beta to much

tjsooley said:
did anybody try calling att if you are a att cust they will give you the code for free.
over on the i9000 forum they say when froyo first came out if you left your sim in the phone when you flashed it would relock your phone.
can anybody verify that if they goto froyo with a unlocked captivate without the sim do they still get locked.
if so it might be a measure to prevent people from messing with the beta to much
Click to expand...
Click to collapse
Actually I did try it. In July, they said wait 60 days. Yesterday they input my IMEI and their system told them that the phone can't be unlocked - due to AT&T exlusivity. i am in the process of escalating, but it is hard to say what will happen.
It certainly appears that it is not as simple as waiting 60 days.

alphadog00 said:
Actually I did try it. In July, they said wait 60 days. Yesterday they input my IMEI and their system told them that the phone can't be unlocked - due to AT&T exlusivity. i am in the process of escalating, but it is hard to say what will happen.
It certainly appears that it is not as simple as waiting 60 days.
Click to expand...
Click to collapse
funny att rep when i got the phone told me that there was no exclusive deal and unlocking was no problem he was a general manager of a att corporate store in wayne nj
if that is the case i will never go to froyo till a unlock soluition is found.

The Bishop said:
I bricked mine trying to go to Froyo. They sent it back to me with JH7 so no go :/ Sorry.
Click to expand...
Click to collapse
Just out of curiosity, was there a charge for this or did you "forget" to mention that you bricked it while flashing Froyo?

tjsooley said:
funny att rep when i got the phone told me that there was no exclusive deal and unlocking was no problem he was a general manager of a att corporate store in wayne nj
if that is the case i will never go to froyo till a unlock soluition is found.
Click to expand...
Click to collapse
Those guys say what they think, but they make you call central to do certain functions - at least in the past. I guess I could go into a store and check, but I doubt I will do any better.

alphadog00 said:
Those guys say what they think, but they make you call central to do certain functions - at least in the past. I guess I could go into a store and check, but I doubt I will do any better.
Click to expand...
Click to collapse
he called the att corp support center
we had alot of issues and he spent like 1 h with us.

What role does SIM play in restore to 100% stock?
alphadog00 said:
Please don't say Odin 1 click as it does not go 100% back to stock.
The nv_data.bin and bml3 device are not as stock. I have FFFFFFF where my unlock code used to be and my unlock code no longer works.
Master Clear and then JF6 restore doesn't change these either. I find it hard to believe there is no way to get 100% back to new.
Any ideas?
Click to expand...
Click to collapse
I'm curious about this too...it seems that once you mod the phone in any way it's never 100% stock again. I wonder if having the SIM in when a mod is done has anything to do with it - does anyone know if the SIM can be written to and, if so, if anything is written to it during a mod?
I've tried everything possible to get this phone 100% stock again in an effort to get Kies Mini to STOP giving me the "unrecognized" error, including cleaning Windows registry and trying on my Windows XP Pro partition - no go. Something, somewhere, is providing information to Kies Mini.
---Edit---
Dumb question about writing to SIM; but question about something being written to it during a mod - if left in - still stands. Anyone?

boomerod said:
I'm curious about this too...it seems that once you mod the phone in any way it's never 100% stock again. I wonder if having the SIM in when a mod is done has anything to do with it - does anyone know if the SIM can be written to and, if so, if anything is written to it during a mod?
I've tried everything possible to get this phone 100% stock again in an effort to get Kies Mini to STOP giving me the "unrecognized" error, including cleaning Windows registry and trying on my Windows XP Pro partition - no go. Something, somewhere, is providing information to Kies Mini.
---Edit---
Dumb question about writing to SIM; but question about something being written to it during a mod - if left in - still stands. Anyone?
Click to expand...
Click to collapse
The SIM can only hold contact data - and very limited amount. I can almost guarantee that nothing is written to the SIM card.
Is Kies not recognizing the phone is plugged in , or refusing to upgrade because it is the wrong type? Unrecognized device by keys is usually due to Samsung drivers and reinstalling them has helped me.
But it seems that the only way to revert to 100% stock is via Samsung repair service.

alphadog00 said:
The SIM can only hold contact data - and very limited amount. I can almost guarantee that nothing is written to the SIM card.
Is Kies not recognizing the phone is plugged in , or refusing to upgrade because it is the wrong type? Unrecognized device by keys is usually due to Samsung drivers and reinstalling them has helped me.
But it seems that the only way to revert to 100% stock is via Samsung repair service.
Click to expand...
Click to collapse
I tried the drivers, but that didn't fix the issue either.

Galaxy Tab P100-cant delete prior owner info

Ive searched and havent been able to find a solution to this, although Ive seen it asked before.
Galaxy Tab P100 bought from a pawn shop. It still has the prior owners (unknown) gmail info minus p/w. I cannot remove the account, or access market because of this. Everytime I tried to data reset (both via Privacy settings and also CWM), add a new rom, or add apps - after I reboot it goes back to the prior owner settings and apks.
I have Odin'd/Heimdall with different roms but they dont stick. Different kernels install though. Ive added two different CWMs. Superuser breaks after every reset - I gain, then lose, root. Ive rooted/added root explorer and deleted accounts.db and user.db - they go back after. Ive spoken with Sprint and we tried everything they had, as well as a ##786# and MSL number (resetting phone activation I think?). Their response was take it in to send back. I want to fix it myself.
It seems to me that this prior info is overriding and reinstalling every reboot, preventing any new flashing/etc from taking place.
Here is my question. I took it apart this morning and disconnected the battery (thinking maybe it will wipe any memory). But does it have a CMOS-type battery? I noticed there is a small round battery-looking connection soldered into the mainboard (see here - step 7/8 http://www.ifixit.com/Teardown/Samsung-Galaxy-Tab-Teardown/4103/1)
Does anyone know what this is? I dont really have anything to lose, but Im not great with a soldering iron, but will try. Im thinking this might be for the memory, and disconnecting/reconnecting this would erase any permanent user information, freeing it up for me to add mine.
Or if anyone has any new ideas I would appreciate it.
Thanks for the time. Ed
Sent from my rooted/rom'd PG86100 using XDA Premium App

It is not a battery backed memory, it is a NAND chip.
Sounds like the chip gone bad.
Sent from my GT-P1000 using XDA

Just an update.
I did not do anything with the round battery thing, as priyana stated the memory is stored on a nand chip. I put the tab back together.
I rooted again, and found the ea24 firmware and loaded it via odin. It took, but the prior user info was still there, and everything (I mean a crapload of apps) began force closing. I did confirm that ea24 was on it. I then flashed back to ef17.
I contacted Sprint repair store again, and they told me that they probably cant fix it, and its something they have to send back. They said that I have done all that they would do in-store.
I dont understand what could be wrong, as I found the prior owner and spoke with her. She had no issues with it. It worked fine prior to her getting rid of it. And it works fine, I just cant get rid of any prior info. I googled it and it seems like there are people out there who have the same problem, but no one has an answer, including sprint or samsung.
So much for my venting. Ill keep trying to find an answer.

roninep said:
I have Odin'd/Heimdall with different roms but they dont stick. Different kernels install though. Ive added two different CWMs. Superuser breaks after every reset - I gain, then lose, root.
Click to expand...
Click to collapse
First of all, I'd like to apologize for posting something that won't really help, but I recognize this from somewhere else. On some devices, there's some kind of file (that you can delete via the adb prompt when you're root) that on every bootup checks to see if the installed ROM matches stock, and if not, restores to stock. This sounds exactly what you're experiencing when you mention that no ROMs "stick".
I think you should try to look into if there's some files that need to be erased in order for a ROM to be cleanly installed that you haven't gotten rid of. It might also be some kind of feature that the previous user enabled, so maybe it's somewhere around in the settings that you can disable it, who knows.
It definitely does not sound like a memory issue because I don't see how a memory issue could make the stock ROM suddenly appear again after you've installed a custom ROM through CWM (assuming CWM gives no errors or anything and the custom ROM has actually been wiped).
Maybe you can do a more thorough wipe of the device memory manually with some guidance from someone who knows more about how these tablets work :fingers-crossed:

I agree with you about some type of file and bootup. Thats why I went with maybe it being a cmos/nand issue. I couldnt understand that I wiped everything, and information was still coming back. It makes me think that somewhere, something is being stored separate from the main drive.
Ive used the factory restore, CWM (2 different versions - 3 and 5 I believe), and wiped data (factory reset), cache and Davlik three times each before I flashed the CM ROMs. And I have not had any errors or problems installing any of the CWMs.
I spoke with the previous user, and she did nothing above turning it on/off, and using it. I am not on the Sprint network with it, and the wi-fi doesnt turn on until I set it up, so I cant see it being something that contacts Sprint and OTAs from them.
Can anyone tell me if, using ADB, there is a more thorough wipe I can perform ? More than the normal one done through CWM or Android factory restore?
Something similar to the reformatting of a hard drive?
Thanks
Ed

I have the same problem. Did you find any solution?
I believe the previous owner info is stored on sprint servers. When you reboot, it downloads all the crap.
The long time required to reboot explains the slow transfer of data - wireless.
These wireless service providers are pretty sneaky.
Thanks

Hi,
Have you tried formatting both internal and external Sd via Windows? (connecting via USB)
You can also try CM10, it has a different memory map which will write your device completely.
Regards
Sent from my GT-P1000 using Tapatalk 2

I have this same problem with a tab. Its not connected to sprint,has not been on the internet at all. Was there ever a fix for this?? Please let me know its a christmas present and i need to fix this issue. Thank you

Two issues after flashing to CM10.1

Alright, you guys might be sick of me, but I have a great deal of respect and appreciation of you skills and knowledge thus far. I flashed my cappy to CM10.1 this morning. After flashing, it seemed to load perfect. But two issue:
First, I flashed without my SIM card installed, as most of what I read said to do it in this manner. However once CM booted for the first time, it never said anything about "no network support"or "insert a SIM card for service" which I've seen on phones in the past when there's no cell connection. I shut down the system, inserted my SIM, then powered it up. The phone did not recognize a SIM card, nor give me any kind of error message. I put the card in upside down once, and it told me that it couldn't read it. It's as though the SIM drivers are missing. I know the SIM card is in good standing, because I had to grab my old Palm Centro to take to work. I popped the SIM in the back and sent texts and made calls all day long, no issue. Any ideas on why the i897 isn't reading it?
The next one is a reboot issue. The phone is rebooting in "sleep mode." Once the screen goes dark, it'll reboot after it sits. If I put it to 30 minutes before sleep, it'll stay on the whole time without rebooting. it's only in sleep. I saw there was an issue with some lower serial #ed phones, and mine does have this lower #. But it never did this in Gingerbread. NEVER! CM10.1 issue?
Thanks in advance! I hope these issues can be worked out, because I really like this phone and CM is awesome!
Courtney

Since I'm getting zero answers, I guess I'll have to reflash. Should I reflash CM10.1, or flash it to stock first, then CM10.1 again?
Courtney

CSaab900 said:
Alright, you guys might be sick of me, but I have a great deal of respect and appreciation of you skills and knowledge thus far. I flashed my cappy to CM10.1 this morning. After flashing, it seemed to load perfect. But two issue:
First, I flashed without my SIM card installed, as most of what I read said to do it in this manner. However once CM booted for the first time, it never said anything about "no network support"or "insert a SIM card for service" which I've seen on phones in the past when there's no cell connection. I shut down the system, inserted my SIM, then powered it up. The phone did not recognize a SIM card, nor give me any kind of error message. I put the card in upside down once, and it told me that it couldn't read it. It's as though the SIM drivers are missing. I know the SIM card is in good standing, because I had to grab my old Palm Centro to take to work. I popped the SIM in the back and sent texts and made calls all day long, no issue. Any ideas on why the i897 isn't reading it?
The next one is a reboot issue. The phone is rebooting in "sleep mode." Once the screen goes dark, it'll reboot after it sits. If I put it to 30 minutes before sleep, it'll stay on the whole time without rebooting. it's only in sleep. I saw there was an issue with some lower serial #ed phones, and mine does have this lower #. But it never did this in Gingerbread. NEVER! CM10.1 issue?
Thanks in advance! I hope these issues can be worked out, because I really like this phone and CM is awesome!
Courtney
Click to expand...
Click to collapse
CSaab900 said:
Since I'm getting zero answers, I guess I'll have to reflash. Should I reflash CM10.1, or flash it to stock first, then CM10.1 again?
Courtney
Click to expand...
Click to collapse
Go check your IMEI, if it says 0 or unknown, you'll have to flash back to stock, backup your EFS folder (with a root explorer) and then work your way back up to CM10.1. If you get the issue again, you'll be able to replace your EFS folder with your backed up one and it will that problem.
Other thing, make sure your APNs are matching your carrier's.
Now as for the reboots, so many things can cause it. I'd make sure not to have ''deep sleep'' turned on, many phones reboot cause of it. Next thing, I'd try different governor and scheduler (towards performance). Next would be to try another kernel for JB (I believe there are 2 to choose from that aren't the CM one). and finally, if all else fails, you can try upping your voltage by like 50 each steps.
P.S.: A simpler solution would be to go back to stock and try another JB ROM.
P.S.S.: It can take some time to get a reply back to your questions as this phone is getting pretty old and we aren't many techs to still support it. That being said, it still gets a lot of love in the Dev side.

I'll add one more thing to Bwolf's suggestions. If you try reflashing or go back to stock then back to CM or whatever else and it's still not working you might look at whether there is a modem installed. CM should come with a modem but for whatever reason it might not have flashed so flashing a modem could fix the problem. There is a sticky in the development section where you can get any modem available for the cappy. Good luck and hopefully you'll get this figured out.

m1batt1 said:
I'll add one more thing to Bwolf's suggestions. If you try reflashing or go back to stock then back to CM or whatever else and it's still not working you might look at whether there is a modem installed. CM should come with a modem but for whatever reason it might not have flashed so flashing a modem could fix the problem. There is a sticky in the development section where you can get any modem available for the cappy. Good luck and hopefully you'll get this figured out.
Click to expand...
Click to collapse
Good point, let me add to this as well
You'll have to flash a I9000 modem (from the modem thread), they're compatible with the I897 on JB.

CSaab900 said:
Since I'm getting zero answers, I guess I'll have to reflash. Should I reflash CM10.1, or flash it to stock first, then CM10.1 again?
Courtney
Click to expand...
Click to collapse
CM10.x has its build properties set to allow you to operate without a SIM card. So, there may not be any error message if there is no sim card.
Have you tried turning off wifi, powering down the phone, removing the battery for a few minutes, clean the sim card with some contact cleaner, let it dry, then reinsert SIM before inserting the battery. Then power up and wait about 10 minutes. Just let the phone sit there. If you can make a phone call or access Internet via cellular data, then the SIM is good.
To BWolf's comment re IMEI, occasionally it happen that there is a number shown in about phone, IMEI, but it is the wrong IMEI number. While you have the battery out, check the phone label under the battery. write the IMEI number on piece of scratch paper. When you reboot, check the about phone, IMEI, to see that it is correct.
Sent from the wholly ROMin' empire. SGH-I897 CM10.1

Go check your IMEI, if it says 0 or unknown, you'll have to flash back to stock, backup your EFS folder (with a root explorer) and then work your way back up to CM10.1. If you get the issue again, you'll be able to replace your EFS folder with your backed up one and it will that problem.
Click to expand...
Click to collapse
Yeah, it says unknown.
Now as for the reboots, so many things can cause it. I'd make sure not to have ''deep sleep'' turned on, many phones reboot cause of it.
Click to expand...
Click to collapse
Not sure what the difference is. I only see a sleep option that ranges for 15 seconds to 30 minutes. If I leave the screen on all the time, the battery isn't going to last very long.
P.S.S.: It can take some time to get a reply back to your questions as this phone is getting pretty old and we aren't many techs to still support it. That being said, it still gets a lot of love in the Dev side.
Click to expand...
Click to collapse
Sorry! Just frustrated.
look at whether there is a modem installed
Click to expand...
Click to collapse
Where do I check this?
Have you tried turning off wifi, powering down the phone, removing the battery for a few minutes, clean the sim card with some contact cleaner, let it dry, then reinsert SIM before inserting the battery. Then power up and wait about 10 minutes. Just let the phone sit there. If you can make a phone call or access Internet via cellular data, then the SIM is good.
Click to expand...
Click to collapse
Worth a shot I guess. I've been using the SIM in my old Centro for a couple days now; no issues.
To BWolf's comment re IMEI, occasionally it happen that there is a number shown in about phone, IMEI, but it is the wrong IMEI number. While you have the battery out, check the phone label under the battery. write the IMEI number on piece of scratch paper. When you reboot, check the about phone, IMEI, to see that it is correct.
Click to expand...
Click to collapse
I'll check that out too.
Thanks for all the tips! If it turns out that I need to re-flash to stock, any tutorials on the subject?
Courtney

CSaab900 said:
If it turns out that I need to re-flash to stock, any tutorials on the subject?
Courtney
Click to expand...
Click to collapse
BAD IMEI. don't bother testing SIM.
See the stickies for flashing stock.
http://forum.xda-developers.com/showthread.php?p=18370912
Use Odin or Helmdal to flash KK4 without bootloader. THEN Follow path of backing up the KK4 efs folder mentioned by BWolf56.
Sent from the wholly ROMin' empire. SGH-I897 CM10.1

Here are four One Click executables that I put together. Each is packaged in a zip file along with a Read Me file that contains Info and Instructions.
The zip file is used just to include the Read Me and to make for a smaller download file size. Once downloaded to your computer, just extract the One Click and Read Me out of the zip and follow the info and instructions contained in the read me file.
The title of these really says it all, but the Read Me files will give a lot more info.
Again, these are Complete Stock I897UCKK4 Gingerbread Firmwares.
Hope many find these useful.
__________________________________________________ ________________________
Odin One Clicks
I897UCKK4 Odin One Click - Stock, CONTAINS Bootloaders, Re-partition, Full Wipe
I897UCKK4 Odin One Click - Stock, NO Bootloaders, Re-partition, Full Wipe
Click to expand...
Click to collapse
__________________________________________________ ________________________
Click to expand...
Click to collapse
I assume this is what you're referring too?
I897UCKK4 Odin One Click - Stock, NO Bootloaders, Re-partition, Full Wipe
Click to expand...
Click to collapse
Thanks!
Courtney

Yes.
Sent from the wholly ROMin' empire. SGH-I897 CM10.1

Flashed to stock, them reinstalled the CM10.1 mod. Works great! No 3G, but I'll get it figured out.
Thanks!
Courtney

[Q] SIM stopped working in my LG Optimus 4X HD

I'm new to this.
A totally random event. I restarted my phone one evening last week and it show no sim. Using the LG support tool I had multiple failed attempts to update the software. Then as sudden a the sim registration had disappeared it came back to life. All fine until again the phone just stopped registering the sim.
Phone is secondhand. And I have tried numerous times removing, cleaning and replacing the SIM. Tried another active SIM on the same network with no luck.
I've never had a 'bricked' phone so don't know what to expect but I imagine the phone wouldn't even boot up!
I have now rooted the phone and installed CWM recovery, still no joy and have in desperation performed a hard reset. Nada!
Software is V10h. I read something about EFS folder to backup but all I could find is a text file. The IMEI is not registering on the phone. It could be a very simple answer but currently I'm stumped. I have requested a replacement SIM but have little hope this will resolve the issue.
I hope someone has an answer...

mvz3k said:
I'm new to this.
A totally random event. I restarted my phone one evening last week and it show no sim. Using the LG support tool I had multiple failed attempts to update the software. Then as sudden a the sim registration had disappeared it came back to life. All fine until again the phone just stopped registering the sim.
Phone is secondhand. And I have tried numerous times removing, cleaning and replacing the SIM. Tried another active SIM on the same network with no luck.
I've never had a 'bricked' phone so don't know what to expect but I imagine the phone wouldn't even boot up!
I have now rooted the phone and installed CWM recovery, still no joy and have in desperation performed a hard reset. Nada!
Software is V10h. I read something about EFS folder to backup but all I could find is a text file. The IMEI is not registering on the phone. It could be a very simple answer but currently I'm stumped. I have requested a replacement SIM but have little hope this will resolve the issue.
I hope someone has an answer...
Click to expand...
Click to collapse
re-flash 10h or 20a kdz. look for various tutorials on the forum. (btw, your phone isnt registring on network cuz your imei isnt being read, probably due to failed upgrade process
(or some other bug). it should be fixable though)
also, replacement sim wont help. its your cell phone that's faulty, either hardware or software, not the SIM itself
also, i'm not sure how it goes if your IMEI is blacklisted by your cell phone company - is it possible the phone was stolen? perhaps the original owner reported it stolen to his carrier and they blocked the IMEI?

Flying_Bear said:
also, i'm not sure how it goes if your IMEI is blacklisted by your cell phone company - is it possible the phone was stolen? perhaps the original owner reported it stolen to his carrier and they blocked the IMEI?
Click to expand...
Click to collapse
If the IMEI is blacklisted, the phone will still show it correctly in the settings and the carrier will just block based on this. This is why changing an IMEI is illegal in most countries and why discussions on how to change it aren't allowed on XDA as it can get the site in serious trouble.

mvz3k said:
I'm new to this.
A totally random event. I restarted my phone one evening last week and it show no sim. Using the LG support tool I had multiple failed attempts to update the software. Then as sudden a the sim registration had disappeared it came back to life. All fine until again the phone just stopped registering the sim.
Phone is secondhand. And I have tried numerous times removing, cleaning and replacing the SIM. Tried another active SIM on the same network with no luck.
I've never had a 'bricked' phone so don't know what to expect but I imagine the phone wouldn't even boot up!
I have now rooted the phone and installed CWM recovery, still no joy and have in desperation performed a hard reset. Nada!
Software is V10h. I read something about EFS folder to backup but all I could find is a text file. The IMEI is not registering on the phone. It could be a very simple answer but currently I'm stumped. I have requested a replacement SIM but have little hope this will resolve the issue.
I hope someone has an answer...
Click to expand...
Click to collapse
check if ur gapps are fine. reinstall all gapps. maybe u deleted some app that u shouldnt. happened to me too 2 weeks ago and i had no sim so signal , i couldnt see my imei, etc. if that doesnt help , then reinstall ur rom or install a custom one. I mean maybe u must be sure to check if u deleted some system app that u shouldnt. Since u have double checked with other sim , if its not from an app , then the above thread is right, the owner could have reported the phone stolen

kessaras said:
if its not from an app , then the above thread is right, the owner could have reported the phone stolen
Click to expand...
Click to collapse
I have had this phone since June and this only happened last week.

Flying_Bear said:
re-flash 10h or 20a kdz. look for various tutorials on the forum. (btw, your phone isnt registring on network cuz your imei isnt being read, probably due to failed upgrade process
(or some other bug). it should be fixable though)
also, replacement sim wont help. its your cell phone that's faulty, either hardware or software, not the SIM itself
also, i'm not sure how it goes if your IMEI is blacklisted by your cell phone company - is it possible the phone was stolen? perhaps the original owner reported it stolen to his carrier and they blocked the IMEI?
Click to expand...
Click to collapse
Okay, strange happenings with this phone. I've not hd the opportunity to re-flash as suggested but by the by I put my SIM back in and it worked fine. IMEI registered in the phone settings and all was as it should be. Until again first the signal disappeared and when I restarted the SIM did not register. Has anyone experienced this before?

mvz3k said:
Okay, strange happenings with this phone. I've not hd the opportunity to re-flash as suggested but by the by I put my SIM back in and it worked fine. IMEI registered in the phone settings and all was as it should be. Until again first the signal disappeared and when I restarted the SIM did not register. Has anyone experienced this before?
Click to expand...
Click to collapse
There have been some problems with this, but normally due the the RIL on CyanogenMod-based ROMs. I would suggest that you find the time to either reflash v10h or upgrade to v20A/B/C (as appropriate for your region) and see if that fixes it for you.

you still havent mentioned anything about gapps. this means you checked and you are sure that they are fine ??

So I have tried flashing software V20A using the LG software updater and now all I get is the phone booting into 'S/W Upgrade please wait while upgrading'
I can get into any other screen, despite pressing all combination of buttons together.
I have attempted reflashing back to V10H and try and get it back to how I had the phone. No luck there
And also tried again with V20A. No joy.
Is there anything else I could try?

mvz3k said:
So I have tried flashing software V20A using the LG software updater and now all I get is the phone booting into 'S/W Upgrade please wait while upgrading'
I can get into any other screen, despite pressing all combination of buttons together.
I have attempted reflashing back to V10H and try and get it back to how I had the phone. No luck there
And also tried again with V20A. No joy.
Is there anything else I could try?
Click to expand...
Click to collapse
Yes, Follow the instructions to flash a v20x KDZ EXACTLY and look at your drivers.

SimonTS said:
Yes, Follow the instructions to flash a v20x KDZ EXACTLY and look at your drivers.
Click to expand...
Click to collapse
Which version of instructions is definitive? I've tried multiple methods with battery in and out. Are you referring to the LG drivers?
Thanks for responding.

mvz3k said:
Which version of instructions is definitive? I've tried multiple methods with battery in and out. Are you referring to the LG drivers?
Click to expand...
Click to collapse
I have always found this thread [TUTORIAL]Update firmware through flashing the kdz files( With Picture )Step by Step works perfectly every time.

Got the same problem here, running cm for a month with no probs, restarted phone and sim not recognized. Installed a backup of the original rom and everything ok. Reflashed kdz's and did a fresh install of cm and still no sim. Am now on Zaiben which is ok but takes about 15 mins to recognize sim?

fastpottsy said:
Got the same problem here, running cm for a month with no probs, restarted phone and sim not recognized. Installed a backup of the original rom and everything ok. Reflashed kdz's and did a fresh install of cm and still no sim. Am now on Zaiben which is ok but takes about 15 mins to recognize sim?
Click to expand...
Click to collapse
Hello, did you solved this issue?
I´m struggling with it now.

ssefrgr said:
Hello, did you solved this issue?
I´m struggling with it now.
Click to expand...
Click to collapse
hi, sorry but no, i think it was probably hardware related as it would no longer allow me to flash kdz's.
good luck.

fastpottsy said:
hi, sorry but no, i think it was probably hardware related as it would no longer allow me to flash kdz's.
good luck.
Click to expand...
Click to collapse
Hi again. I ordered one of these. Lets test it. Last resort
http://forum.xda-developers.com/showthread.php?t=2780274&page=165

Galaxy Note 8 won't recognize sim card

Hello Friends,
So I have quite the problem here. I recently tried to root my new Galaxy Note 8 sm-n9500 128gb. Apparently something went wrong and the root didn't work.
Not only that but since then my Phone wont recognize my sim card anymore and can't use mobile data because of that. It also shows no more IMEI.
I looked for guides how to fix that but coulnd't find any. So I started from the beginning with unlocking the bootloader trough BlueEffects Guide. After that installed TWRP and then magisk. TWRP will install but then the phone crashes and goes into a bootloop. I can hard reset and then it works again, tho TWRP seems to be unable to flash anything. I tried also SuperSu next to magisk but nothing works. If i understand correctly if i would succeed rooting the phone, I can just flash a new modem on the phone, or the EFS Folder and it should work again. Or also use some Apps with root rights to get the IMEI back?
I would appriciate anything that could help me restore my phone.
Thank you so much.
Regards Patrice

Nobody...?

Try flash stock rom

OnnoJ said:
Try flash stock rom
Click to expand...
Click to collapse
I already tried. I tried flashing many different Stock roms with different Versions and even older ones. Nothing changed tho.

I think you may have to take your phone to a service centre.

Seeing as you have erased the IMEI number from your device you would have to reflash back onto the BIOS

liquidguru said:
I think you may have to take your phone to a service centre.
Click to expand...
Click to collapse
Wouldn't they refuse to do anything with it because I tried to root it and knox got tripped?

iceepyon said:
Seeing as you have erased the IMEI number from your device you would have to reflash back onto the BIOS
Click to expand...
Click to collapse
If i understand it correctly that shouldn't be too hard to do by myself if the phone was rooted. The problem is that I can't get the phone rooted. I tried with BlueEffect's guide but it didn't work.
Now i have the problem that I can't seem to get Odin to do anything. No matter what I try to flash it always fails instantly after "connection setup". It worked before tho, so I really don't know what the problem is.

Elekted said:
If i understand it correctly that shouldn't be too hard to do by myself if the phone was rooted. The problem is that I can't get the phone rooted. I tried with BlueEffect's guide but it didn't work.
Now i have the problem that I can't seem to get Odin to do anything. No matter what I try to flash it always fails instantly after "connection setup". It worked before tho, so I really don't know what the problem is.
Click to expand...
Click to collapse
Sounds like that you may have completely wiped and unformated the internal storage on your device. I would recommend that you reformat it with the mtr setting.

iceepyon said:
Sounds like that you may have completely wiped and unformated the internal storage on your device. I would recommend that you reformat it with the mtr setting.
Click to expand...
Click to collapse
How do i do that? I have never heard about that