Develop Bugs

[Q] P936 blank IMEI, no service

Hi there!
I recently discovered that my phone has totally no service after about 2 weeks flashing with V20F rom so I flashed back to Hong Kong stock gb rom. However, the phone cannot detect the sim card thus still no service and when I check the IMEI with *#06#, only a blank box appeared. I checked the efs folder and it was blank. As my phone was unrooted, I sent it to the service center. Just now, they called me and said that they my phone is rooted and the problem cannot be fixed (did they really try to fix it??!!) and needed to change the m/b which costs HKD2000!!!
My question is do I really need to pay for the m/b or are there any cheaper ways to recover the IMEI??? I have searched on the web but there seems to be no such tutorial for P930 or P936.
Oh and by the way, I am not sure if I have a backup of the efs folder as I once installed CWR.
Thank you for your help!
(Sorry for my bad English, English is not my native language...)

YeungEthan said:
Hi there!
I recently discovered that my phone has totally no service after about 2 weeks flashing with V20F rom so I flashed back to Hong Kong stock gb rom. However, the phone cannot detect the sim card thus still no service and when I check the IMEI with *#06#, only a blank box appeared. I checked the efs folder and it was blank. As my phone was unrooted, I sent it to the service center. Just now, they called me and said that they my phone is rooted and the problem cannot be fixed (did they really try to fix it??!!) and needed to change the m/b which costs HKD2000!!!
My question is do I really need to pay for the m/b or are there any cheaper ways to recover the IMEI??? I have searched on the web but there seems to be no such tutorial for P930 or P936.
Oh and by the way, I am not sure if I have a backup of the efs folder as I once installed CWR.
Thank you for your help!
(Sorry for my bad English, English is not my native language...)
Click to expand...
Click to collapse
I had the same issue well the window saying 'No network or wrong IMEI' so I too will wait to see any responses and I only put those numbers in because I heard that it may open up the internet speed or stop the drop of wifi signal, just not sure of any of that lol

TheCrow1372 said:
I had the same issue well the window saying 'No network or wrong IMEI' so I too will wait to see any responses and I only put those numbers in because I heard that it may open up the internet speed or stop the drop of wifi signal, just not sure of any of that lol
Click to expand...
Click to collapse
I don't think yours is the same issue of mine as I don't have any error message. The IMEI is just literally blank. I really hope someone can help me. Anyway, thanks for your response!

There is something that may help you, it's over at the galaxy S3 forums. IT MAY. DO NOT MAKE ANY MODIFICATIONS USING THIS UNLESS YOU FIND RESULTS SIMILAR TO WHAT IS IN THE POST. PLEASE DON'T BLAME ME IF IT DOES NOT WORK. http://forum.xda-developers.com/showthread.php?t=1801997 USE QPST. BUT ONLY READ FROM THE SYSTEM. DON'T MOD IT AT ALL UNLESS YOU ARE SURE. YOU HAVE BEEN WARNED.

rani9990 said:
There is something that may help you, it's over at the galaxy S3 forums. IT MAY. DO NOT MAKE ANY MODIFICATIONS USING THIS UNLESS YOU FIND RESULTS SIMILAR TO WHAT IS IN THE POST. PLEASE DON'T BLAME ME IF IT DOES NOT WORK. http://forum.xda-developers.com/showthread.php?t=1801997 USE QPST. BUT ONLY READ FROM THE SYSTEM. DON'T MOD IT AT ALL UNLESS YOU ARE SURE. YOU HAVE BEEN WARNED.
Click to expand...
Click to collapse
Thank you very much!!! It said it works for every phone, so I am going to try this! I will let you know if this works!

rani9990 said:
There is something that may help you, it's over at the galaxy S3 forums. IT MAY. DO NOT MAKE ANY MODIFICATIONS USING THIS UNLESS YOU FIND RESULTS SIMILAR TO WHAT IS IN THE POST. PLEASE DON'T BLAME ME IF IT DOES NOT WORK. http://forum.xda-developers.com/showthread.php?t=1801997 USE QPST. BUT ONLY READ FROM THE SYSTEM. DON'T MOD IT AT ALL UNLESS YOU ARE SURE. YOU HAVE BEEN WARNED.
Click to expand...
Click to collapse
Hi! No luck! Unfortunately, the above solution requires some sort of chip which this P936 hasn't. I will give the phone to a local electronic store to see if they have any clues. Thanks anyway!

[Q] Need help with GNote2 SGH-T889. NULL IMEI / No Service

To start off with, I'm a complete beginner on rooting/flashing and I didn't even cause the problem in the first place, but I may have a better understanding. So a friend was trying to downgrade his phone to 4.1.1 so it could be unlocked through the service menu. I'm not completely sure what files were used but it did downgrade to 4.1.1 but it now says no service and the IMEI says NULL. Please help!!
Also, it's not the "not registered to network" error I have seen mostly while i was trying to search.
Thank you

any ideas on where I can look for a fix?

solardrgn said:
any ideas on where I can look for a fix?
Click to expand...
Click to collapse
You could try what is mentionned on the fourth post of that link.
http://forum.xda-developers.com/showthread.php?t=2068281&highlight=repair

i saw thread for the Tool to repair the IMEI, but the link doesnt work for me...

[Q] Need help with Null Imei Please Please Please

Hello,
I have been unlocking for a while but have ran into issues lately with z3x and 4.3 on i747. Basically everyime i use 23x box something goes wrong last night it started with an extra number being inserted in the imei. Not knowing that ns pro will wreck your modem i tried it and now the imei is null and baseband is unknown. Any help would greatly be appreciated. There was alot i did not know about unlocking because i got into this with ns pro back when there was 0 problmes with anyhting below 4.3, but now 4.3 is killing me.
Here is what i have done
i have tried to rewrite imei mulitple times
i have tried qpst with a good know qcn fiel but it just error out. everytime
the problem
*#7284# shows up but wont allow me to switch between modem andpda
phone will not read in either z3x or ns pro
it would seem like tis not reading in qpst either as it wont allo me to restore any of the good know files
i just really want to be done with this and move on.
Another question i have is int he furute if i do a full nv backup with nv reader writer will this help at all. Like is said i am only having this problem ont he 747 and i have searched xda, ns pro, and z3x forums for an answer and i cant seem to find one. My next step is just to replace the baseband chip and be done, but that alot of work and i hate reballing any bga.
Thanks in Advance
Scott

scoeas1982 said:
Hello,
I have been unlocking for a while but have ran into issues lately with z3x and 4.3 on i747. Basically everyime i use 23x box something goes wrong last night it started with an extra number being inserted in the imei. Not knowing that ns pro will wreck your modem i tried it and now the imei is null and baseband is unknown. Any help would greatly be appreciated. There was alot i did not know about unlocking because i got into this with ns pro back when there was 0 problmes with anyhting below 4.3, but now 4.3 is killing me.
Here is what i have done
i have tried to rewrite imei mulitple times
i have tried qpst with a good know qcn fiel but it just error out. everytime
the problem
*#7284# shows up but wont allow me to switch between modem andpda
phone will not read in either z3x or ns pro
it would seem like tis not reading in qpst either as it wont allo me to restore any of the good know files
i just really want to be done with this and move on.
Another question i have is int he furute if i do a full nv backup with nv reader writer will this help at all. Like is said i am only having this problem ont he 747 and i have searched xda, ns pro, and z3x forums for an answer and i cant seem to find one. My next step is just to replace the baseband chip and be done, but that alot of work and i hate reballing any bga.
Thanks in Advance
Scott
Click to expand...
Click to collapse
NULL IMEI doesn't mean you've actually lost your IMEI
try take sim out, restart phone and then reinsert sim, and if that doesn't work, restart again with your sim inside
and also when you reinject imei(say whatever i said above doesn't work for you), make sure under developer option, usb debugging is on!

scoeas1982 said:
Hello,
I have been unlocking for a while but have ran into issues lately with z3x and 4.3 on i747. Basically everyime i use 23x box something goes wrong last night it started with an extra number being inserted in the imei. Not knowing that ns pro will wreck your modem i tried it and now the imei is null and baseband is unknown. Any help would greatly be appreciated. There was alot i did not know about unlocking because i got into this with ns pro back when there was 0 problmes with anyhting below 4.3, but now 4.3 is killing me.
Here is what i have done
i have tried to rewrite imei mulitple times
i have tried qpst with a good know qcn fiel but it just error out. everytime
the problem
*#7284# shows up but wont allow me to switch between modem andpda
phone will not read in either z3x or ns pro
it would seem like tis not reading in qpst either as it wont allo me to restore any of the good know files
i just really want to be done with this and move on.
Another question i have is int he furute if i do a full nv backup with nv reader writer will this help at all. Like is said i am only having this problem ont he 747 and i have searched xda, ns pro, and z3x forums for an answer and i cant seem to find one. My next step is just to replace the baseband chip and be done, but that alot of work and i hate reballing any bga.
Thanks in Advance
Scott
Click to expand...
Click to collapse
Looks like your modem is compromised. You can download the modem via the following link and try reflashing recovery.
http://www.androidfilehost.com/?fid=23212708291681456

Larry2999 said:
Looks like your modem is compromised. You can download the modem via the following link and try reflashing recovery.
Larry thank you so much for your help, and i am embarrased to say this but i dont know how to do that. Is it a file i put into the pda section of odin and put the phone in download mode.
Click to expand...
Click to collapse

scoeas1982 said:
Larry2999 said:
Looks like your modem is compromised. You can download the modem via the following link and try reflashing recovery.
Larry thank you so much for your help, and i am embarrased to say this but i dont know how to do that. Is it a file i put into the pda section of odin and put the phone in download mode.
Click to expand...
Click to collapse
No, it's a zip file which has to be flashed via (custom) recovery. If you do not have custom recovery, you can flash that to your phone via Odin. There are several options for custom recovery but most common options are CWM, TWRP and Philz Touch which is an enhancement of CWM.
First download the modem file to your computer. Copy it to your phone's internal SD card if you can or to an external (micro) SD card.
Once you have the zip ready, boot your phone into recovery mode via the 3-button combo (Volume Up, Home and Power).
When you are in recovery mode, select install and navigate to the modem zip. Start flashing. Wait for flashing to be complete and reboot to system. I'd have sent you some download links for custom recovery but I'm writing this in a fly. You could, however, do a search through this forum.
Click to expand...
Click to collapse

Larry thank you so much it actually worked in case someone lese has this problem im going to post waht i did
i downloaded the file
flashed the modem.bin file via twrp. I just put it on the phone i did not use the sd card
then i rewrote the imei with ns pro verision 6.7.1 (this phone was on 4.3)
i know have my imei back, and i know also i have the phone in 100 percent working condition with a full imei.
TAKE MY ADVICE AND BACK UP THE NV ITEMS before doing a s3 747 or 999 on z3 box just in case. I have spent close to 3 days trying to fix these phones.
Thank you Larry so very very much. If you have a link to paypal i will donate to you.

alos if you are going to install the file to your phone remeber to put it back into mtp+adb so you can move it your phone with out an sd card

ok so after completeting this you will only get edge network download the nv writer and nv items from the link below and then you will get 4g lte back
http://forum.gsmhosting.com/vbb/f286/nv-items-t999-i747-i317-t889-1647823/

scoeas1982 said:
Larry thank you so much it actually worked in case someone lese has this problem im going to post waht i did
i downloaded the file
flashed the modem.bin file via twrp. I just put it on the phone i did not use the sd card
then i rewrote the imei with ns pro verision 6.7.1 (this phone was on 4.3)
i know have my imei back, and i know also i have the phone in 100 percent working condition with a full imei.
TAKE MY ADVICE AND BACK UP THE NV ITEMS before doing a s3 747 or 999 on z3 box just in case. I have spent close to 3 days trying to fix these phones.
Thank you Larry so very very much. If you have a link to paypal i will donate to you.
Click to expand...
Click to collapse
How were you able to rewrite using ns pro 6.7.1? everytime i try, it tells me operation failed. thanks

yes you are correct i am using 6.7.0 to rewrite the imeo not 6.7.1

scoeas1982 said:
Larry thank you so much it actually worked in case someone lese has this problem im going to post waht i did
i downloaded the file
flashed the modem.bin file via twrp. I just put it on the phone i did not use the sd card
then i rewrote the imei with ns pro verision 6.7.1 (this phone was on 4.3)
i know have my imei back, and i know also i have the phone in 100 percent working condition with a full imei.
TAKE MY ADVICE AND BACK UP THE NV ITEMS before doing a s3 747 or 999 on z3 box just in case. I have spent close to 3 days trying to fix these phones.
Thank you Larry so very very much. If you have a link to paypal i will donate to you.
Click to expand...
Click to collapse
Glad to know your phone is working fine now. Maybe I should put up a donation link. Just kidding ... seriously though, if you are happy with the support you are getting from the forum and make a donation to XDA, you'd be helping to keep the forum going.

Thanks for the help to both you guys!!!

HELP

Pls i wanna fix up my imei null and i need the engineering mode menu, but i just discovered its not present on my phone. pls can someone kindly upload the apk so i can inatall and use it. my phone is SGH i317
Thanks

ziainaction said:
Pls i wanna fix up my imei null and i need the engineering mode menu, but i just discovered its not present on my phone. pls can someone kindly upload the apk so i can inatall and use it. my phone is SGH i317
Thanks
Click to expand...
Click to collapse
First of all you post help in the wrong section.
It's against the law to change the IMEI so this fourm will not be able help you.

jayjay1234 said:
First of all you post help in the wrong section.
It's against the law to change the IMEI so this fourm will not be able help you.
Click to expand...
Click to collapse
actually i dont wanna change it. i wanna restore it. i flashed a wrong zip and it got it messed up. cant recieve mobile network and imei says null

ziainaction said:
actually i dont wanna change it. i wanna restore it. i flashed a wrong zip and it got it messed up. cant recieve mobile network and imei says null
Click to expand...
Click to collapse
Well then, from what I know I the easiest way is through efs backup. I really hope you have made a full Rom backup if not I remember there was another method but it wasn't going to be easy. Hopefully someone here can guild you in that direction.

no I don't have a backup of the rom. I thought that the engineering mode menu can help. I saw a video tutorial online about it. And if u still have a better option pls guide me through

jayjay1234 said:
Well then, from what I know I the easiest way is through efs backup. I really hope you have made a full Rom backup if not I remember there was another method but it wasn't going to be easy. Hopefully someone here can guild you in that direction.
Click to expand...
Click to collapse
no I don't have a backup of the rom. I thought that the engineering mode menu can help. I saw a video tutorial online about it. And if u still have a better option pls guide me through

ziainaction said:
no I don't have a backup of the rom. I thought that the engineering mode menu can help. I saw a video tutorial online about it. And if u still have a better option pls guide me through
Click to expand...
Click to collapse
Never tried it but Google is you friend
http://www.xda-developers.com/andro...s-ii-and-other-samsung-devices-in-nine-steps/

guaranteed there is someone in your city that changes imei, i know its illegal but a buddy of mine baught a stolen phone, and found out that the imei was blacklisted, the cops didnt do anything so he had to find another way out, online he found a person that changed it for him

broken IMEI

Hello guys. This is my first post and i need help
i installed original samsung note 2 n7100 rom and i cant call or get sms from anyone!
i searched on the internet and i fount my imei is broken.
its not same as in the back. i tried many method but no solution. also in my country changing imei is a big problem.
so is there anyway to fix this issue? because i dont want to pay a hundred box for it.
living with 500 box in a month and i cant pay that money.
[tried efs pro and got root error. also i got root access on my device]

Which ROM did you flash ? What's your current modem ?

Where did you get the phone?
Does the IMEI start with 0049?