Develop Bugs

[Q] sgh-m919 imei null or hardware issue?

hi there, i have an sgh-m919 which is 4months old. it worked fine for the first 3 then one night without warning, the cell-signal indicator turned into a circle with a line through it, indicating no carrier.
did some looking, seems that the imei is now reading as unknown (i did not try to root or do anything to it for this to occur). this is not a stolen device and the people i bought it from can't help.
after perusing your excellent help/forums, i tried rooting, reflashing stock tmobile, triangle-away, u name it, same result- imei unknown, circle with line through it.
i am wondering if i have a hardware fault which is causing this because of the many things i have tried, none seem to change this one issue. Note that when i press the codes to go into service mode, the screen shows a blank service mode, as opposed to a menu which is what is supposed to be there. So i am really puzzled if this is a hardware fault which is disallowing the drivers or whatever to initialise?
my question is- is there some diagnostic i can run which will interrogate the hardware and report if there is a failure? i would like to keep the phone stock samsung tmobile as opposed to rooting etc.
any assistance would be appreciated
thanks
Greg

rookoorarr said:
hi there, i have an sgh-m919 which is 4months old. it worked fine for the first 3 then one night without warning, the cell-signal indicator turned into a circle with a line through it, indicating no carrier.
did some looking, seems that the imei is now reading as unknown (i did not try to root or do anything to it for this to occur). this is not a stolen device and the people i bought it from can't help.
after perusing your excellent help/forums, i tried rooting, reflashing stock tmobile, triangle-away, u name it, same result- imei unknown, circle with line through it.
i am wondering if i have a hardware fault which is causing this because of the many things i have tried, none seem to change this one issue. Note that when i press the codes to go into service mode, the screen shows a blank service mode, as opposed to a menu which is what is supposed to be there. So i am really puzzled if this is a hardware fault which is disallowing the drivers or whatever to initialise?
my question is- is there some diagnostic i can run which will interrogate the hardware and report if there is a failure? i would like to keep the phone stock samsung tmobile as opposed to rooting etc.
any assistance would be appreciated
thanks
Greg
Click to expand...
Click to collapse
Did you buy it from a store? If so take it back to the store and demand they give you a new one.
Did you buy it from a person selling it second hand? If so they screwed you over. They sold you the phone then reported it stolen later and got themselves a brand new on on a warrenty claim. As soon as they report their current one stolen T Mobile blacklists the IMEI. Call the cops on them. Call the warrenty company too any let them know that a fraudlent claim was filed.

Skipjacks said:
Did you buy it from a store? If so take it back to the store and demand they give you a new one.
Did you buy it from a person selling it second hand? If so they screwed you over. They sold you the phone then reported it stolen later and got themselves a brand new on on a warrenty claim. As soon as they report their current one stolen T Mobile blacklists the IMEI. Call the cops on them. Call the warrenty company too any let them know that a fraudlent claim was filed.
Click to expand...
Click to collapse
hi, thanks for your reply.
yes i bought it from a store and when i took it to them for service, it just sat there for 2 weeks before i pulled it back. they did not work on it and when i diagnosed the imei problem, they replied that this has never happened to them before so i doubt they are capable of repairing this anyway.
based on your suggestion that the imei is blacklisted- if this is true, how come the issue doesn't go away temporarily when i flash to oem without a sim installed? the phone does not go onto the network at all- it shows that circle upon boot. i am thinking that if the imei was indeed blocked, it would allow the phone to go online to the carrier and then report it as unknown.
the issue seems to be that either the nv has been corrupted (which i am guessing would be rewritten over with a fresh one when flashed) or there is some hardware fault (such as the cell radio) which is causing this.
the phone works great on wifi, all apps work fine, everything seems normal except for the cellular/mobile ability.
that's why i am asking if there is a hardware diagnostic i can run to verify or deny this is the problem.
thanks
Greg

rookoorarr said:
hi, thanks for your reply.
yes i bought it from a store and when i took it to them for service, it just sat there for 2 weeks before i pulled it back. they did not work on it and when i diagnosed the imei problem, they replied that this has never happened to them before so i doubt they are capable of repairing this anyway.
based on your suggestion that the imei is blacklisted- if this is true, how come the issue doesn't go away temporarily when i flash to oem without a sim installed? the phone does not go onto the network at all- it shows that circle upon boot. i am thinking that if the imei was indeed blocked, it would allow the phone to go online to the carrier and then report it as unknown.
the issue seems to be that either the nv has been corrupted (which i am guessing would be rewritten over with a fresh one when flashed) or there is some hardware fault (such as the cell radio) which is causing this.
the phone works great on wifi, all apps work fine, everything seems normal except for the cellular/mobile ability.
that's why i am asking if there is a hardware diagnostic i can run to verify or deny this is the problem.
thanks
Greg
Click to expand...
Click to collapse
If you bought it from a store brand new then the imei is not likely the issue. At least not because its been blacklisted.
Again though, you bought it from a store. Its 4 months old and it broke. Take it back and tell them to give you a new one. What country are you in? Some countries have much stronger consumer protection rules.
Sent from my GT-P5110 using Tapatalk

I'm in Trinidad, West Indies (the Caribbean)
I have contacted t-mobile who says they can't help because I'm not a t-mobile customer and the people I bought it from are useless when it comes to service. They gave only a 30 day warranty so it's out.
Last resort, have contacted samsung, awaiting reply
Thanks
Greg
Sent from my SGH-M919 using xda app-developers app

rookoorarr said:
I'm in Trinidad, West Indies (the Caribbean)
I have contacted t-mobile who says they can't help because I'm not a t-mobile customer and the people I bought it from are useless when it comes to service. They gave only a 30 day warranty so it's out.
Last resort, have contacted samsung, awaiting reply
Thanks
Greg
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Have you pulled out the battery and looked on the back and checked the IMEI there to see if its blacklisted? If it isn't then you can push it back into the phone, I had the problem on my old s3 and I would think that the solution would be the same to fix it.
Sent from my GT-I9505G using XDA Premium 4 mobile app

I have the imei from the sticker under the battery but don't know the site to check for blacklisted imei's; guess I'll google it
I also don't know how to push it back onto the phone: all the free apps I tried don't work. The service menu is also blank.
Greg
Sent from my SGH-M919 using xda app-developers app

Yeah it sounds like something deleted out the information in the rom that holds that data.
I beleive in the etc folder.
I forget without looking.
There are many tools on the forum to backup IMEI data to prevent this from happening and restore it from backup if it does.
In this case, were presumably there is no backup, the phone will need to be serviced by samsung.

Agreed. Based on the number of ideas I tried from xda, the issue was never repaired so I hooe samsung can help
Thanks
Greg
Sent from my SGH-M919 using xda app-developers app

based on checks with several imei blacklist sites, it seems that my imei is blacklisted (wtf!)
i have emailed t-mobile to verify as well.
but here's a question- if my device got blacklisted on the night when the imei went null in the phone- was it deactivated by t-mobile (note, i am not a t-mobile customer, i am not in the USA) and if it was, how come flashing to samsung oem doesn't repair the issue?
i do not have a sim in the phone so it's not even going to try to connect to a carrier. i am confused if it could have been remotely disabled via t-mobile and how can i get this back up and running again?
Thanks
Greg

rookoorarr said:
based on checks with several imei blacklist sites, it seems that my imei is blacklisted (wtf!)
i have emailed t-mobile to verify as well.
but here's a question- if my device got blacklisted on the night when the imei went null in the phone- was it deactivated by t-mobile (note, i am not a t-mobile customer, i am not in the USA) and if it was, how come flashing to samsung oem doesn't repair the issue?
i do not have a sim in the phone so it's not even going to try to connect to a carrier. i am confused if it could have been remotely disabled via t-mobile and how can i get this back up and running again?
Thanks
Greg
Click to expand...
Click to collapse
The store you bought it from sounds shady if they won't honor the manufacturers warranty. They also seem to have sold you a stolen phone. Call the cops.
You will never get the phone unblacklisted.
Sent from my GT-P5110 using Tapatalk

Skipjacks said:
The store you bought it from sounds shady if they won't honor the manufacturers warranty. They also seem to have sold you a stolen phone. Call the cops.
You will never get the phone unblacklisted.
Sent from my GT-P5110 using Tapatalk
Click to expand...
Click to collapse
Partially right. He could call and find out if the phone is stolen or if it has a balance in it. If latter, you can pay the balance off and have the blacklist removed. But yes, report the store to the police. Shady business.
Sent from my SGH-M919 using XDA Premium 4 mobile app

xdapowerapps said:
Partially right. He could call and find out if the phone is stolen or if it has a balance in it. If latter, you can pay the balance off and have the blacklist removed. But yes, report the store to the police. Shady business.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I don't think you can. Once the imei is on that blacklist I think its there to stay.
Sent from my GT-P5110 using Tapatalk

xdapowerapps said:
Partially right. He could call and find out if the phone is stolen or if it has a balance in it. If latter, you can pay the balance off and have the blacklist removed. But yes, report the store to the police. Shady business.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Once blacklisted it's a done deal. Even if you offer to pay any balance owed tmobile will say no.
Only recourse is try and get a refund from the store.
☞ Sent from here☜???

baseballfanz said:
Once blacklisted it's a done deal. Even if you offer to pay any balance owed tmobile will say no.
Only recourse is try and get a refund from the store.
☞ Sent from here☜???
Click to expand...
Click to collapse
Try bringing really big scary mean looking guys with you into the store. See if the manager is more understanding of your issue when you have 'friends' there.

Lol great answers thanks to all so far
I have reported the blacklist to the store, awaiting reply now
I also wrote samsung who has referred me to a local dealer but I am waiting to see what the store does first.
Can anyone say how t-mobile did this? I do not have a t-mobile sim, I was using the phone on wifi as normal when the imei went null
How did t-mobile find the device to null the imei (I am not in the usa) and what exactly was done? What files or database on my device was deleted/erased?
Thanks
Greg
Sent from my SGH-M919 using xda app-developers app

rookoorarr said:
Lol great answers thanks to all so far
I have reported the blacklist to the store, awaiting reply now
I also wrote samsung who has referred me to a local dealer but I am waiting to see what the store does first.
Can anyone say how t-mobile did this? I do not have a t-mobile sim, I was using the phone on wifi as normal when the imei went null
How did t-mobile find the device to null the imei (I am not in the usa) and what exactly was done? What files or database on my device was deleted/erased?
Thanks
Greg
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Nothing was changed on your phone.
T Mobile blacklists the phone's serial number (IMEI) which is sent to the cell tower everytime the phone moves to a new tower or re-authenticates itself on a tower. If your IMEI is blacklisted then the network says it won't allow the device to authenticate.
Even though you don't use T Mobile you may still be using a T Mobile network. The 4 main US carriers sublet their networks to smaller carriers, and while I'm not super familiar with the cell carriers used in Trinnidad, I'd bet you anything that the US carriers opperate the networks there even if it's under different names or through subletting of the their networks.
There is also some ambiguity as to if cell phone carriers share those blacklists with each other. If they do, then getting blacklisted on one GSM network is the same as getting blacklisted on all GSM networks. I'm not sure if that's going on though.

Hmmmm then the issue I have is different. The device is showing a null imei so it never gets to register on the carrier
Sent from my SGH-M919 using xda app-developers app

rookoorarr said:
Hmmmm then the issue I have is different. The device is showing a null imei so it never gets to register on the carrier
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Then something else happened that damaged the IMEI on your device.
But you specifically said you checked your IMEI against the blacklist and said yours was blacklisted. All advice that was given to you after that was based on that information.
If the IMEI is damaged on your device, then you need to find help elsewhere. We do not discuss how to repair/restore/replace IMEI's on XDA unless you have a previous backup of the EFS partition made in recovery for YOUR device. If so, just restore that backup. If not, you cannot use XDA to find out how to fix a bad IMEI. There are too many ways that information is used for evil and theivery and XDA will not be a party to the discemination of that information.

Agreed, understood.
If you look at my original question, you will see where I was querying a null imei. And as the thread continued, someone suggested I check the imei blacklist. I thought that t-mobile had done something remotely to my device to disable it, that's how I got to this point. My original issue still remains-null imei.
I understand that changing imei is illegal so I have not requested that. I was enquiring what could have happened to my device, given that I did not root or tamper with it in any way to cause a null imei.
If it is that the efs or nv or whatever file on the device got corrupted, I can accept that. Odd thing is that if it's a protected system file then how could it become corrupted in the first place.
Nevertheless, I do not wish to be blacklisted here on xda so I am not asking for advice on how to change imei.
If I knew I needed to backup whatever files before, I would have. But this is not my first Android (I owned a nexus one since it came out and it still works to this day) and I never had this issue of corrupted files. Granted, it is an older version of android.
I appreciate all the advice given so far.
Thanks
Greg
Sent from my SGH-M919 using xda app-developers app

Note 2 imei different from back panel

Experts. One of my friend bought a note 2 n7100 and has been using it since a few days. He wanted to upgrade so he tried to sell it to a second hand dealer, who notice that the imei was different from what was printed on the back panel. The phone is on stock 4.3 with knox count on zero. How can I help him get back the original imei. BTW the phone is working normal, problem is just the bogus imei.
Thanks.
Sent from my GT-N7100 using Tapatalk

ibraahim said:
Experts. One of my friend bought a note 2 n7100 and has been using it since a few days. He wanted to upgrade so he tried to sell it to a second hand dealer, who notice that the imei was different from what was printed on the back panel. The phone is on stock 4.3 with knox count on zero. How can I help him get back the original imei. BTW the phone is working normal, problem is just the bogus imei.
Thanks.
Sent from my GT-N7100 using Tapatalk
Click to expand...
Click to collapse
Well, there are two possibilities:
1) The phone might be stolen and reported, so somebody changed the internal imei so it could work on networks. Find a website on your country where you can verify reported imeis and find out, but search the one on the back behind the battery, that's the one that matters (real one).
2) Thre imei might have been changed during another rom flash, sometimes that causes the imei to get corrupted and needs to be fixed and it can only be done by real samsung or mobile operators support.
Hope this helps. If it did, hit the thanks button.
Sent from my GT-N7100 using XDA Premium 4 mobile app

Change imei

hello guys.i need help how i can change imei on my lg g3 d852?

And why would you want to do that?
Sent from my VZW LG G2

mrao said:
And why would you want to do that?
Sent from my VZW LG G2
Click to expand...
Click to collapse
Cuz yesterday i change my galaxy s4 for this is lg g3 d852g and i check imei in home its in block list.so i need make work

leos0000 said:
Cuz yesterday i change my galaxy s4 for this is lg g3 d852g and i check imei in home its in block list.so i need make work
Click to expand...
Click to collapse
you need to get your s4 back, its illegal to change the imei.
were you not suspicious when someone said they would swap there G3 for an S4?or did you also pay money toward?
if the imei is blocked then the phone is either reported lost or stolen, so if you cant get your phone back then report it to the police

Question A52S/sm a526b/ds successfully rooted with camera working+ demo unit baseband 0000 imei question problem.

I purchased this phone unknowingly that it was a demo version.
I removed the demo version from it via the code, reset and then flash and update.
The dual imei numbers are both 0000 when I typed some code ( cant remember it showed that the imei is ok)
I wanted to get it repair via some of those remote box services. I dealt with very rude unpleasant person who was impolite, told me to install quite old xsg rom which is different csc compared to my original rom. When I flashed under imei there is UAE csc and new lines added under: TRA ID :
and TA : , and these two were not there before, device also shows just as a52 instead as a52s as previously. The person suggested the rom based on the build number that I sent him.
Afterwards he was asking for pictures and then blocked me.
Im wondering If I can fix this unit to usable cellular state with working real imeis
I thought xposed modules would help, but it seems they only help with apps and only change imei on them.
I highly doubt that this device has banned imei.
I would be happy to help you to root it and I would appreciate if someone can help me.
I searched many threads without success, I know the efs/qcb is probably corrupted
What route I should go to fix this device?

If it is a demo version and has no IMEI this tells you that this legally is no mobile device that is approved to use with operators. Inserting a new IMEI can not be legal in normal countries. IMEI is a device identifier sent with all phone traffic to ensure that the device is a legitimate one and is not stolen and black (do not work at all) or grey (works but flagged to be traced) listed.
Go back to the seller and demand your money back!

I hoped that someone with more experience with this would chime in, on these new galaxy devices the imeis still seems to suppose to be there, in galaxy 8 or older galaxy version there was no 4g module and antenna removed, I think this is what you are talking about right ? and it was purchased on ad.
Im wondering if these services like chimera can fix it.

I thought it's unrootable. How did you do it?

gerhard_wa said:
If it is a demo version and has no IMEI this tells you that this legally is no mobile device that is approved to use with operators. Inserting a new IMEI can not be legal in normal countries. IMEI is a device identifier sent with all phone traffic to ensure that the device is a legitimate one and is not stolen and black (do not work at all) or grey (works but flagged to be traced) listed.
Go back to the seller and demand your money back!
Click to expand...
Click to collapse
I bought it off an add, impossible, so Im trying to at least fix it, one person here popped in my messages, trying to help... I think he recovered my damaged imei partition and stole it and sold it. Xda what a wonderful place of helpful people.

lucas_54 said:
I thought it's unrootable. How did you do it?
Click to expand...
Click to collapse
Thats bs, my firmware is older but cam is working,The method described in a52 thread, patching file through odin.

ftaqh said:
I bought it off an add, impossible, so Im trying to at least fix it, one person here popped in my messages, trying to help... I think he recovered my damaged imei partition and stole it and sold it. Xda what a wonderful place of helpful people.
Click to expand...
Click to collapse
You must be joking; demo phones have no imei. They are not phones they are dummies. Throwing around inane accusations will do you no god around here.

[CLOSED] oneplust 7t hd907 no sim card

i have 1+ 7t got sim but no signal. member can help me fix it ! really big problem for me

timonblue1131 said:
i have 1+ 7t got sim but no signal. member can help me fix it ! really big problem for me
Click to expand...
Click to collapse
Please list:
The carrier of your SIM card.
Is your HD1907 SIM unlocked?
The firmware/ROM type (T-mobile stock/Global/Third party...)

hellotiger999 said:
Please list:
The carrier of your SIM card.
Is your HD1907 SIM unlocked?
The firmware/ROM type (T-mobile stock/Global/Third party...)
Click to expand...
Click to collapse
- The carrier in vietnam 4g
- Is unlocker divece
- fw stock t-mobile i try rom cook in xda till not signal.
and me check in web tmobile "was ime-locked by the manufacturer because it was stolen or lost"

timonblue1131 said:
- The carrier in vietnam 4g
- Is unlocker divece
- fw stock t-mobile i try rom cook in xda till not signal.
and me check in web tmobile "was ime-locked by the manufacturer because it was stolen or lost"
Click to expand...
Click to collapse
Well, if it is IMEI-blocked by T-mobile because it was stolen or lost, the information may be shared with your Vietnamese carrier, and it will fail to work in Vietnam.
Before you buy a used phone, make sure it has a clean IMEI.

hellotiger999 said:
Well, if it is IMEI-blocked by T-mobile because it was stolen or lost, the information may be shared with your Vietnamese carrier, and it will fail to work in Vietnam.
Before you buy a used phone, make sure it has a clean IMEI.
Click to expand...
Click to collapse
What do I have to do to bring it back. i bought it in vietnam and i have absolutely no idea when there is a problem. im try

timonblue1131 said:
What do I have to do to bring it back. i bought it in vietnam and i have absolutely no idea when there is a problem. im try
Click to expand...
Click to collapse
You may have several options if the IMEI block is the reason.
Ask T-Mobile to recover your phone and remove the IMEI block. Only the original owner who is a T-Mobile subscriber can do it.
Use it as a WiFi-only device.
Sell it for parts/repair.
Buy a new phone and make sure it has a clean IMEI and is SIM unlocked.

hellotiger999 said:
You may have several options if the IMEI block is the reason.
Ask T-Mobile to recover your phone and remove the IMEI block. Only the original owner who is a T-Mobile subscriber can do it.
Use it as a WiFi-only device.
Sell it for parts/repair.
Buy a new phone and make sure it has a clean IMEI and is SIM unlocked.
Click to expand...
Click to collapse
i think unlock ime from tmobile is impossible because i dont my own divece. may only wifi or repair ime. so sad

Well, it is locked by the cell towers. There is nothing you can do if that device was stollen and locked. This is probably the only example when tower lock it justified. There is practically nothing you can do to spoof your IMEI (not saying that is a crime), and no cell tower will let you in with this IMEI.

rampitec said:
Well, it is locked by the cell towers. There is nothing you can do if that device was stollen and locked. This is probably the only example when tower lock it justified. There is practically nothing you can do to spoof your IMEI (not saying that is a crime), and no cell tower will let you in with this IMEI.
Click to expand...
Click to collapse
if repair other imei maybe ok ?

timonblue1131 said:
if repair other imei maybe ok ?
Click to expand...
Click to collapse
I don't think you can. It is considered a crime in the first place.

timonblue1131 said:
if repair other imei maybe ok ?
Click to expand...
Click to collapse
I think it's better to return the phone to the seller, asking for a refund. The IMEI record clearly shows that it is a lost or stolen phone.

hellotiger999 said:
I think it's better to return the phone to the seller, asking for a refund. The IMEI record clearly shows that it is a lost or stolen phone.
Click to expand...
Click to collapse
i dont know ! i buy it other secon hand, of course imei lost or stolen

rampitec said:
I don't think you can. It is considered a crime in the first place.
Click to expand...
Click to collapse
if u is stolen, u have up post and question about considered of u ?? i dont think u doing.
im just by it secon hand and here

U can fix imei but not in xda. Look elsewhere

timonblue1131 said:
What do I have to do to bring it back. i bought it in vietnam and i have absolutely no idea when there is a problem. im try
Click to expand...
Click to collapse
hellotiger999 said:
Please list:
The carrier of your SIM card.
Is your HD1907 SIM unlocked?
The firmware/ROM type (T-mobile stock/Global/Third party...)
Click to expand...
Click to collapse
Is it possible to change the number of IMEI

Msfdfsx said:
Is it possible to change the number of IMEI
Click to expand...
Click to collapse
Yes, but not on XDA

HueyT said:
Yes, but not on XDA
Click to expand...
Click to collapse
Does it solve the problem?

timonblue1131 said:
i think unlock ime from tmobile is impossible because i dont my own divece. may only wifi or repair ime. so sad
Click to expand...
Click to collapse
does imei repair solve the problem?

Msfdfsx said:
does imei repair solve the problem?
Click to expand...
Click to collapse
Yes

Imei repair will only solve if there's no hw issue you need to post some pick for better experience