Database Info

[Q] cell network loss

Hello!
I have a very strange problem with my Nexus S 9023.
At some moment phone have lost cell network totally. Rebooting device did not help. I tried to reinstall ROM and to change it (same with KRENEL and RADIO).
Sim is ok. No sim works on my phone.
Specs:
Rom - 2.3.4. SuperAOSP ST 8.6
Kernel - Matrix cfs v 6.5
Radio - D1
UPD:
-netmonitor app does not find any signal
-system says "radio version unknown"
-phone was not damaged
-*#*#4634#*#* shows "disconnest GSM: State: DCInActiveState Disconnected with last try at 2:29 fail because No Error". Preferred network type in this window can not be changes from "unknown"
-IMEI is "-"
If anyone have some ideas please help me

Have you flashed a new radio recently? If you have you need to restore the EFS folder using root explorer and reboot. It sounds like you have corrupted the EFS folder somehow if your imei number is not showing.

I found this folder. How should I restore it?

gwynnbleidd said:
I checked EFS folder with File Expert. And in IMEI folder I have found no files. What should I do now?
Click to expand...
Click to collapse
Put the stock ROM on your phone, lock the bootloader and ship it to a samsung repair center.

georgemv said:
Put the stock ROM on your phone, lock the bootloader and ship it to a samsung repair center.
Click to expand...
Click to collapse
My girlfriend's did the same thing I'm having to send it out complete network failure. It was intermittent for a while now, no matter what nothing works.
Sent from my Xoom using XDA App

I'm sorry, but I can't believe that second Nexus device is so easy to break/brick! On Passion things were much simpler/harder to break...
Just sharing my thoughts. This stuff with /efs is just unbelievable... What were they thinking?? Befeore Crespo I didn't even know that IMEI can be wiped off of device
Sorry for all of you guys having hard time with this flaw

WOW!
my colleague from service center reports that they have repaired my phone. But it took one week. And samsung techniсians could not propose any solution immediately. They needed some tine to think.
So now i think how to do a full dackup of my phone before next try to receive root and flash it with AOSP

gwynnbleidd said:
WOW!
my colleague from service center reports that they have repaired my phone. But it took one week. And samsung techniсians could not propose any solution immediately. They needed some tine to think.
So now i think how to do a full dackup of my phone before next try to receive root and flash it with AOSP
Click to expand...
Click to collapse
Great! Where do you live? I have problem with my IMEI, but for now, my Nexus is working fine.
One more question? You didn't have any IMEI number??

I live in Moscow.
Right now my IMEI is 004999010640000 and also some IMEI SV 01

[Q] Skyrocket no sim ... a posible fix

hi i know there are a lot of threats already of this but now i bring a posible solution to this problem
in my case is no hardware problem cuz i change it, i have falshed a lot of modem and still says no sim... insert sim
btw the phone is unlock. so i decide to leave my skyrocket as nonfuntional phone but i start tu play with the service mode
and suddendly recognize the sim card and get data and works great. but it only works until you reset or power of the phone.
if that happend you have to do my steps again and that way you get sim recognition again.
i post this cuz im not a developer i dont know to much about debuging mode so plp that know that can see my steps a find a permanent solution
to the no sim error on skyrocket.
before start you have to inserte the FUNCTIONAL SIM CARD and power up the phone, it will power with no sim error
un dialer put *#197328640#
enter to debug screen 1
enter to phone control 8
enter to simulation 5
enter to modem Assert (reset)
at this point it appear to dont do anything but wait like 30 seg you will see the signals would restart and then do this
press menu and choose end
there it is now it recognize the sim...... so it possible is something with MODEM ASSERT (reset) but this is a solution not PERMANENT cuz when you reset o turn off the phone you have to do this again to get sim recognition again
so pliz devoleper make a PERMANENT solution with what i found
i try this with an att skyrocket with UCL2 baseband and UCL2 oem root ics
if you guys try this or think it its not possible just post me and on the weekend i ll upload a youtube video with all the steps and you ll see that it works
sorry for my english

Did you back up your efs folder?
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

efs folder
Mervingio said:
Did you back up your efs folder?
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Click to expand...
Click to collapse
i bougth the skyrocket from ebay already with this issue so i dont have a efs folder backup. the phone is sim unlock
i also have another att skyrocket same version can a copy the efs file from it and back up on the defective skyrocket?

4italia4 said:
i bougth the skyrocket from ebay already with this issue so i dont have a efs folder backup. the phone is sim unlock
i also have another att skyrocket same version can a copy the efs file from it and back up on the defective skyrocket?
Click to expand...
Click to collapse
I think that would clone the imei and mac addresses aka bad news.

damn
lart2150 said:
I think that would clone the imei and mac addresses aka bad news.
Click to expand...
Click to collapse
well the defective skyrocket showns the imei and mac and its correct with the back label, i already backed up tha efs folder. i also try tu run the GSII_repair ant it says on step 3 nv_data.bak and his nv_data.bak.m5d is miss so i think that the problem is something with that. As i have the back up of my partial efs folder i think i can start playing around and see what i got cuz in my partial efs folder i have my imei backed up
what do you think?

4italia4 said:
well the defective skyrocket showns the imei and mac and its correct with the back label, i already backed up tha efs folder. i also try tu run the GSII_repair ant it says on step 3 nv_data.bak and his nv_data.bak.m5d is miss so i think that the problem is something with that. As i have the back up of my partial efs folder i think i can start playing around and see what i got cuz in my partial efs folder i have my imei backed up
what do you think?
Click to expand...
Click to collapse
IMO you need back ALL to stock and UNROOT then start from zero and see.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

Mervingio said:
IMO you need back ALL to stock and UNROOT then start from zero and see.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Click to expand...
Click to collapse
i thought he tried going back to stock
note: going back to stock will unroot , its just like getting it new from carrier, then see if your having sim card issues, btw which carrier are u trying to use, att?

mas movil
vincom said:
i thought he tried going back to stock
note: going back to stock will unroot , its just like getting it new from carrier, then see if your having sim card issues, btw which carrier are u trying to use, att?
Click to expand...
Click to collapse
the phone is ulock and in the efs folder have the imei folder and it showns the correct imei i already back up that folder. im trying to use a panamamenian gsm carrier. i got data internet can make calls can do everything but after y make the steps above after turn on the phone everytime
so this weekend i ll try some new stuff go to stock unroot rom try to merge the efs folder of the good one skyrocket without pasting the imei folder and lets si what i got

4italia4 said:
the phone is ulock and in the efs folder have the imei folder and it showns the correct imei i already back up that folder. im trying to use a panamamenian gsm carrier. i got data internet can make calls can do everything but after y make the steps above after turn on the phone everytime
so this weekend i ll try some new stuff go to stock unroot rom try to merge the efs folder of the good one skyrocket without pasting the imei folder and lets si what i got
Click to expand...
Click to collapse
leave the efs folder alone, just try the stock firmware as is to test

I too am having a problem with an AT&T Skyrocket that is rooted. I have been using it without a problem with Straighttalk's AT&T SIM. I decided to switch it to T-Mobile's $30 plan and unlocked the phone. It worked except service was extremely poor so I flashed the SKY ICE 4.2E R5goo.zip and SKY ICE 4.2-17.zip ROM (T-mobile radio). This didn't work any better so I read that I should try a couple different radios. I attempted to flash the Blaze radio since that seems to be the most popular and after rebooting I get the no SIM error. I have reflashed the stock ROM using ODIN (several times) and now neither the T-mobile or ST SIM is recognized.
I found this thread and attempted to go through the procedure but there is no modem assert reset on my menus.
Any help would be a appreciated.

truebeliever71 said:
I too am having a problem with an AT&T Skyrocket that is rooted. I have been using it without a problem with Straighttalk's AT&T SIM. I decided to switch it to T-Mobile's $30 plan and unlocked the phone. It worked except service was extremely poor so I flashed the SKY ICE 4.2E R5goo.zip and SKY ICE 4.2-17.zip ROM (T-mobile radio). This didn't work any better so I read that I should try a couple different radios. I attempted to flash the Blaze radio since that seems to be the most popular and after rebooting I get the no SIM error. I have reflashed the stock ROM using ODIN (several times) and now neither the T-mobile or ST SIM is recognized.
I found this thread and attempted to go through the procedure but there is no modem assert reset on my menus.
Any help would be a appreciated.
Click to expand...
Click to collapse
Did you notice in odin if it flashed files named mdm.bin and amss.bin? That's the radio.
In case you didn't (and didn't read the 1 stop thread), here are som links for radios:
A thread with only t-mobile radios (work on our phone too) and here are all the i727 radios.
Hopefully this will help, but really i'm just guessing, maybe someone else can spread some light on your problem.
I'm guessing (hoping) that for some reason the blaze radio failed to flash and so you got a corrupt radio. Then you flashed stock tar that didn't have modem in it.

lingowistico said:
Did you notice in odin if it flashed files named mdm.bin and amss.bin? That's the radio.
In case you didn't (and didn't read the 1 stop thread), here are som links for radios:
A thread with only t-mobile radios (work on our phone too) and here are all the i727 radios.
Hopefully this will help, but really i'm just guessing, maybe someone else can spread some light on your problem.
I'm guessing (hoping) that for some reason the blaze radio failed to flash and so you got a corrupt radio. Then you flashed stock tar that didn't have modem in it.
Click to expand...
Click to collapse
Yes it did flash the mdm and amss bins. I'm suspecting something happened to the SIM holder since it will not read any of the SIMs (Tmobile, ATT or ST) I tried in it and have another on it's way. I'll see if that changes the outcome.

4italia4 said:
hi i know there are a lot of threats already of this but now i bring a posible solution to this problem
in my case is no hardware problem cuz i change it, i have falshed a lot of modem and still says no sim... insert sim
btw the phone is unlock. so i decide to leave my skyrocket as nonfuntional phone but i start tu play with the service mode
and suddendly recognize the sim card and get data and works great. but it only works until you reset or power of the phone.
if that happend you have to do my steps again and that way you get sim recognition again.
i post this cuz im not a developer i dont know to much about debuging mode so plp that know that can see my steps a find a permanent solution
to the no sim error on skyrocket.
before start you have to inserte the FUNCTIONAL SIM CARD and power up the phone, it will power with no sim error
un dialer put *#197328640#
enter to debug screen 1
enter to phone control 8
enter to simulation 5
enter to modem Assert (reset)
at this point it appear to dont do anything but wait like 30 seg you will see the signals would restart and then do this
press menu and choose end
there it is now it recognize the sim...... so it possible is something with MODEM ASSERT (reset) but this is a solution not PERMANENT cuz when you reset o turn off the phone you have to do this again to get sim recognition again
so pliz devoleper make a PERMANENT solution with what i found
i try this with an att skyrocket with UCL2 baseband and UCL2 oem root ics
if you guys try this or think it its not possible just post me and on the weekend i ll upload a youtube video with all the steps and you ll see that it works
sorry for my english
Click to expand...
Click to collapse
Have you found a permanent solution for this problem? I been having the same issue with a SGH-M919 Tmobile version working on Movistar Colombia.
Thank you.

Very familiar issues buying from ebay garbage

4italia4 said:
hi i know there are a lot of threats already of this but now i bring a posible solution to this problem
in my case is no hardware problem cuz i change it, i have falshed a lot of modem and still says no sim... insert sim
btw the phone is unlock. so i decide to leave my skyrocket as nonfuntional phone but i start tu play with the service mode
and suddendly recognize the sim card and get data and works great. but it only works until you reset or power of the phone.
if that happend you have to do my steps again and that way you get sim recognition again.
i post this cuz im not a developer i dont know to much about debuging mode so plp that know that can see my steps a find a permanent solution
to the no sim error on skyrocket.
before start you have to inserte the FUNCTIONAL SIM CARD and power up the phone, it will power with no sim error
un dialer put *#197328640#
enter to debug screen 1
enter to phone control 8
enter to simulation 5
enter to modem Assert (reset)
at this point it appear to dont do anything but wait like 30 seg you will see the signals would restart and then do this
press menu and choose end
there it is now it recognize the sim...... so it possible is something with MODEM ASSERT (reset) but this is a solution not PERMANENT cuz when you reset o turn off the phone you have to do this again to get sim recognition again
so pliz devoleper make a PERMANENT solution with what i found
i try this with an att skyrocket with UCL2 baseband and UCL2 oem root ics
if you guys try this or think it its not possible just post me and on the weekend i ll upload a youtube video with all the steps and you ll see that it works
sorry for my english
Click to expand...
Click to collapse
Hi, im having the same problem but when i put the numbers *#197328640# it doesn't shoe me anything, empty list, no options!
please i really need any help in this :/
thanks

Not working with your method
4italia4 said:
hi i know there are a lot of threats already of this but now i bring a posible solution to this problem
in my case is no hardware problem cuz i change it, i have falshed a lot of modem and still says no sim... insert sim
btw the phone is unlock. so i decide to leave my skyrocket as nonfuntional phone but i start tu play with the service mode
and suddendly recognize the sim card and get data and works great. but it only works until you reset or power of the phone.
if that happend you have to do my steps again and that way you get sim recognition again.
i post this cuz im not a developer i dont know to much about debuging mode so plp that know that can see my steps a find a permanent solution
to the no sim error on skyrocket.
before start you have to inserte the FUNCTIONAL SIM CARD and power up the phone, it will power with no sim error
un dialer put *#197328640#
enter to debug screen 1
enter to phone control 8
enter to simulation 5
enter to modem Assert (reset)
at this point it appear to dont do anything but wait like 30 seg you will see the signals would restart and then do this
press menu and choose end
there it is now it recognize the sim...... so it possible is something with MODEM ASSERT (reset) but this is a solution not PERMANENT cuz when you reset o turn off the phone you have to do this again to get sim recognition again
so pliz devoleper make a PERMANENT solution with what i found
i try this with an att skyrocket with UCL2 baseband and UCL2 oem root ics
if you guys try this or think it its not possible just post me and on the weekend i ll upload a youtube video with all the steps and you ll see that it works
sorry for my english
Click to expand...
Click to collapse
I didn't find option in Simulation (I have inserted the Working Sim Card). Well I live in Mumbai,India. I can't come to US just to fix this phone. So please tell me what to do now? plz Plz tell me. am eagerly waiting for your reply.

I am finding permanent solution for this problem.
So you will need to solutions for this problem.
Please contact us on 9420076969.
Your phone is still properly working.

[Completed] Nexus 6 No LTE with correct IMEI! "0" Imei and LTE!

Ok, Ladies and Gentleman I need some deep thought processing here for some help with a Motorola Nexus 6. In brief here is what the problem is, a while back when flashing Pure Nexus rom, I experienced a loss of my IMEI. I can restore my IMEI but if and when I do, I lose any 4g and LTE connectivity. The phone functions in 3g with data and phone etc... just slow as molasses but if I restore my IMEI to the one that doesn't show up my IMEI correctly I get back LTE/4g and all works fine also. I've tried going all the way back to the original firmware which was saved to computer and restoring it. Same thing, I have IMEI but no LTE/4g. restore bad efs and get LTE/4g back. I've tried going through all the factory firmware's and flashing by ADB and or TWRP and nothing firmware wise will allow me to restore the IMEI and have LTE/4g signal. If I restore the bad efs and get OOOOOOOO for IMEI when using the *#06# on any firmware version, I regain LTE/4g functioning! I am using Pure Nexus 7.1 now and can still see the 00000000 as a IMEI, if I restore my efs and get IMEI back showing correctly, no LTE/4g signal! My phone can only function as it should as long as the IMEI doesn't show correctly! I have tried just flashing base bands and other segments of any rom and still the problem persist! I have even tried restoring an EFS from another nexus 6 and still no help. It's not the sims because I've tried AT&T sims and Verizon sims from other phones and it does the same thing! I've tried flashing with a sims in the phone and without. Any ideas??? It's like somehow a correlating segment of a file is not being recognized when the correct IMEI is present, like some thing some where in the efs, IMEI, and radio are not taking to each other so to speak, unless it shows the zero's! Brain waves come on and help me out here!

TheWacoKid said:
Ok, Ladies and Gentleman I need some deep thought processing here for some help with a Motorola Nexus 6. In brief here is what the problem is, a while back when flashing Pure Nexus rom, I experienced a loss of my IMEI. I can restore my IMEI but if and when I do, I lose any 4g and LTE connectivity. The phone functions in 3g with data and phone etc... just slow as molasses but if I restore my IMEI to the one that doesn't show up my IMEI correctly I get back LTE/4g and all works fine also. I've tried going all the way back to the original firmware which was saved to computer and restoring it. Same thing, I have IMEI but no LTE/4g. restore bad efs and get LTE/4g back. I've tried going through all the factory firmware's and flashing by ADB and or TWRP and nothing firmware wise will allow me to restore the IMEI and have LTE/4g signal. If I restore the bad efs and get OOOOOOOO for IMEI when using the *#06# on any firmware version, I regain LTE/4g functioning! I am using Pure Nexus 7.1 now and can still see the 00000000 as a IMEI, if I restore my efs and get IMEI back showing correctly, no LTE/4g signal! My phone can only function as it should as long as the IMEI doesn't show correctly! I have tried just flashing base bands and other segments of any rom and still the problem persist! I have even tried restoring an EFS from another nexus 6 and still no help. It's not the sims because I've tried AT&T sims and Verizon sims from other phones and it does the same thing! I've tried flashing with a sims in the phone and without. Any ideas??? It's like somehow a correlating segment of a file is not being recognized when the correct IMEI is present, like some thing some where in the efs, IMEI, and radio are not taking to each other so to speak, unless it shows the zero's! Brain waves come on and help me out here!
Click to expand...
Click to collapse
Greetings and welcome to assist. Have you tried asking in the pure nexus thread to see if anyone else has had this issue ? I have seen it before when flashing aosp/cm based roms but the fix is usually different each time
Regards
Sawdoctor

imei restored but still no signal issue,mob detects my network name but sigal issue

imei restored but still no signal issue,mob detects my network name but sigal issue

refer this comment - https://forum.xda-developers.com/showpost.php?p=72987547&postcount=25
or this post - https://forum.xda-developers.com/lenovo-p2/help/suggestions-deleted-modem-files-sim-t3598615

rajakali1705 said:
imei restored but still no signal issue,mob detects my network name but sigal issue
Click to expand...
Click to collapse
I almost grazed like donkey in XDA for no signal issue on P2, bcz before I never faced this situation of no signal, still I didn't face no imei situation for my p2..only think I need to know is imei/ flashing modem on bootloader unlocked device or rooted phones...search qpsk tools and so others....refer this link below for the process how to write imei on Qualcomm device, and do a search related for p2.
http://en.miui.com/thread-260943-1-1.html
I have never faced imei issue, to search and try some clear process
Hard bricked phones....only way is through QPST via Qfil or QSB via SDfuse methods can fix all sorts like no fastboot, bootloader is impossible. Thing is Lenovo need to release those files. Already some Lenovo got those files and Zuk. I search will ever those be released. Yes they are....
Try below process, you dont get signal and has imei....
https://forum.xda-developers.com/le...cial-twrp-lenovo-p2-3-0-t3533659/post73506567

MEID, IMEI1 & IMEI2. Got lost, Can i Back it?

Hello all,
My problem is i make flash for my device ( DOOGEE S60 ), and after flashing my ROM, i deal this *#06* and the output is:
IMEI1:1111111111111111
IMEI2:2222222222
MEID:000000000
Click to expand...
Click to collapse
So guys there is any way to restore it? or any luck to writes my IMEI from my old phone?

Nvram formated
I have the same problem because I deleted the NVRAM and unfortunately I did not make a backup. then I try to fix the problem using Miracle box by untroducing imei 1 and 2. the network has been restored but there is always a conflict from time to time the network disappears. 4G does not work and when I use 3G the SIM 2 loses the network, the MEID and always 0000 ....

Obada8 said:
Hello all,
My problem is i make flash for my device ( DOOGEE S60 ), and after flashing my ROM, i deal this *#06* and the output is:
So guys there is any way to restore it? or any luck to writes my IMEI from my old phone?
Click to expand...
Click to collapse
If you have rooted your phone, GhostPhone app is working perfect and keeps all numbers without need to restore them manually on every update or changed mobile network settings(the last oftendeletes IMEI on many MTK 6xxx phones). If no root access - use MauiMeta to flash them from PC, it is not hard for use from unexpirienced people.