Develop Bugs

Need help to install custom rom

Dear Android experts in this huge & helpful forum
I have the big common problem related to EFS folder:crying:
When i received my note 2 (international) after my pervios mobile Galaxy S2 (which i have tried with it several roms without a problem), i wasn't aware about the EFS folder problem and IMEI and ..... so on.
After trying first rom without backing up my EFS, unfortunately i corrupt my IMEI and lost network and after 2 days search and trying nothing solve it until i went to private fix center which fixed it.
After the fix i make a backup the EFS with many backup tools on the forum and i was happy that i will be able try roms as i hope, but i found the truth was not :crying::crying:, every time i install any of the custom roms i keep have the (Out of service ) network problem.
The problem that i found that the IMEI number is right but serial number is 00000000, also the network name is right and signal is strength is displayed , but still (out of service).
I can fix the phone with only one way (install stock rom + Ariza patch) but when i use the same patch with the the custom rom it makes every thing unknown (IMEI,.......).
When i install the modem XXDME4 it solve the problem for unknown IMEI and unknowns but still the out of service problem :crying::crying:
Please anybody can help me in this bad problem?

Waiting your help please!

r u there guys? :crying:

So, if i reset flash counter and un-root the device but the IMEI still dynamic (as 0040056545) would they accept it??
I check from download mode that the counter is 0 and shows that the rom is official
Please Advice before the end of this year

Thanks for your support
Last support hope....if i backup the EFS after receive from Samsung service center, would i be able to install custom roms??

Thanks all for too much help, please remove the thread

IMEI Gone and One Sim not working After SP Tool upgrade to Android N - Please Help

Hi there.
After having a number of problems with Youtube, Sim connectivity and weak wifi, i decided to upgrade to Naugat and as soon as i did it, i noticed that while previous issues were gone, my IMEI was also "Unknown". Besides, one sim shows up but not working. I have done my research and came to conclusion that with the firmware upgrade, i have also cleaned NVRAM and IMEI and unfortunately i did not back up the phone totally.
I am wondering over sites for like 3 days and checked tested every option.
My phone is Moto M XT1663, dual sim and when i start in the meta mode, i see a line in chinese language.
Can i humbly request some assistance here, please.
thank you

I have a solution for your problem.
Contact me if you are still facing imei problem.

Kandroid88 said:
Contact me if you are still facing imei problem.
Click to expand...
Click to collapse
I do have the problem. please help me out

alvinasnow said:
I do have the problem. please help me out
Click to expand...
Click to collapse
Beaware. This user only register here to say you that.
¿Why don't post here the solution?

My whatsapp no is +923006523488. Contact me i will help you.
10000% wotking!

kolomalo said:
Beaware. This user only register here to say you that.
¿Why don't post here the solution?
Click to expand...
Click to collapse
thanks... noted

Thanks @Khurram88 for the solution and it worked.
1. Flash Marshmallow version 132 using SP tool
2. Connect with maui-Meta and go to IMEI Download
3. Browse a file from modemdb
4. Write IMEIs in given spaces
5. Write and Save
Done

can you give a bit more of a detailed guide, I'm having the same issue. But I have no idea how to find modemdb ?

s6 need imei help

hi,
im using 920p
but after flash + root , my device imei issue n service issue, can anyone help me.
i try to patch imei cert without box with samsungtool but i got some error ,

waqqas71 said:
hi,
im using 920p
but after flash + root , my device imei issue n service issue, can anyone help me.
i try to patch imei cert without box with samsungtool but i got some error ,
Click to expand...
Click to collapse
Looks bad. Imei seems to be corrupt/lost.
If you have not made a backup of imei data before, you need some luck to get it repaired/restored again.
Best to search for imei repair and your device model, then check reliable hits.
There are some forums/threads and some YouTube videos.
Good luck!

Galaxy S20 ultra G988B/DS SIM Network Not available (status ng) after flashing stock ROM

Hi Guys !
Greetings to y'all!!!
I'm honored to be a part of this prestigious community at last and looking forward to give back, someday soon. My huge respect for all the contributing members, I have been using this forum to get help since 2016 and without even posting anything I've always managed to get helpful information to resolve every problem encountered till now ((rooting & flashing)).
:'D
So here goes my first thread:
A friend of mine recently tried flashing stock ROM on his SM-G988B/DS since his update firmware option wasn't working for some reason. Even though it was a success, in doing so he flashed wrong version of firmware and caused network failure, flight mode if tapped got stuck (greyed) (wrong modem was flashed). There was no backup and original firmware number wasn't mentioned so I tried flashing different versions of firmware (U1,U2,U3,U4 & U5) and finally got it working on flashing CP(modem file) of G988BXXU5BTJ3.
However, for some reason I still was unable to make a call, so I searched for it and found out that by dialing *#0011# my IMEI status is NG which is bad , even though my IMEI number is still intact as found on the back of the phone. I researched a bit further and found out that this has something to do with the EFS file and whilst going through comments in another forum I found someone else had the same issue and got resolved by deleting nv_data.bin file and its backup and IMEI folder in EFS file after rooting and reflashing stock ROM. I tried the same but found that nv_data.bin was missing in EFS folder, so I backed up EFS file and deleted just the IMEI folder in it and reflashed stock ROM, have tried flashing different CP versions aswell still no success .
I've seen some videos of Chimera IMEI rewriting and certificate patching and Z3X tool on youtube but in their case IMEI is missing and I don't want to go for those solutions for the instance. I'm wanting to learn from all this exercise and want to know whether what is what and how to resolve this manually (maybe by writing some hex code or script etc) if possible.
Summarized:
Phone: SM-G988B/DS
ROM: Stock (G988BXXU5BTJ3) (rooted)
Status: SIM Card Registration failure ( IMEI status NG)
IMEI : Intact (As on the back of the phone)
EFS file ( nv_data.bin and .bak missing)
Previous Status: SIM Card was working fine before flashing ROM
Your valuable suggestions in this regard shall be highly appreciated.

bro did u find any fix

Hey I've got exactly they same problem as you with an S10 Plus, did you find any way to fix it ?

hamzaaslamkhank said:
Hi Guys !
Greetings to y'all!!!
I'm honored to be a part of this prestigious community at last and looking forward to give back, someday soon. My huge respect for all the contributing members, I have been using this forum to get help since 2016 and without even posting anything I've always managed to get helpful information to resolve every problem encountered till now ((rooting & flashing)).
:'D
So here goes my first thread:
A friend of mine recently tried flashing stock ROM on his SM-G988B/DS since his update firmware option wasn't working for some reason. Even though it was a success, in doing so he flashed wrong version of firmware and caused network failure, flight mode if tapped got stuck (greyed) (wrong modem was flashed). There was no backup and original firmware number wasn't mentioned so I tried flashing different versions of firmware (U1,U2,U3,U4 & U5) and finally got it working on flashing CP(modem file) of G988BXXU5BTJ3.
However, for some reason I still was unable to make a call, so I searched for it and found out that by dialing *#0011# my IMEI status is NG which is bad , even though my IMEI number is still intact as found on the back of the phone. I researched a bit further and found out that this has something to do with the EFS file and whilst going through comments in another forum I found someone else had the same issue and got resolved by deleting nv_data.bin file and its backup and IMEI folder in EFS file after rooting and reflashing stock ROM. I tried the same but found that nv_data.bin was missing in EFS folder, so I backed up EFS file and deleted just the IMEI folder in it and reflashed stock ROM, have tried flashing different CP versions aswell still no success .
I've seen some videos of Chimera IMEI rewriting and certificate patching and Z3X tool on youtube but in their case IMEI is missing and I don't want to go for those solutions for the instance. I'm wanting to learn from all this exercise and want to know whether what is what and how to resolve this manually (maybe by writing some hex code or script etc) if possible.
Summarized:
Phone: SM-G988B/DS
ROM: Stock (G988BXXU5BTJ3) (rooted)
Status: SIM Card Registration failure ( IMEI status NG)
IMEI : Intact (As on the back of the phone)
EFS file ( nv_data.bin and .bak missing)
Previous Status: SIM Card was working fine before flashing ROM
Your valuable suggestions in this regard shall be highly appreciated.
Click to expand...
Click to collapse
First, do a TWRP backup, all partitions including efs & modem.
Open the root explorer app, open the efs folder, delete the files named nv_data.bin
, nv_data.bin.md5 & the folder called imei. Then open twrp, wipe all partitions. Flash the latest firmware with Odin.

B
hamzaaslamkhank said:
Hi Guys !
Greetings to y'all!!!
I'm honored to be a part of this prestigious community at last and looking forward to give back, someday soon. My huge respect for all the contributing members, I have been using this forum to get help since 2016 and without even posting anything I've always managed to get helpful information to resolve every problem encountered till now ((rooting & flashing)).
:'D
So here goes my first thread:
A friend of mine recently tried flashing stock ROM on his SM-G988B/DS since his update firmware option wasn't working for some reason. Even though it was a success, in doing so he flashed wrong version of firmware and caused network failure, flight mode if tapped got stuck (greyed) (wrong modem was flashed). There was no backup and original firmware number wasn't mentioned so I tried flashing different versions of firmware (U1,U2,U3,U4 & U5) and finally got it working on flashing CP(modem file) of G988BXXU5BTJ3.
However, for some reason I still was unable to make a call, so I searched for it and found out that by dialing *#0011# my IMEI status is NG which is bad , even though my IMEI number is still intact as found on the back of the phone. I researched a bit further and found out that this has something to do with the EFS file and whilst going through comments in another forum I found someone else had the same issue and got resolved by deleting nv_data.bin file and its backup and IMEI folder in EFS file after rooting and reflashing stock ROM. I tried the same but found that nv_data.bin was missing in EFS folder, so I backed up EFS file and deleted just the IMEI folder in it and reflashed stock ROM, have tried flashing different CP versions aswell still no success .
I've seen some videos of Chimera IMEI rewriting and certificate patching and Z3X tool on youtube but in their case IMEI is missing and I don't want to go for those solutions for the instance. I'm wanting to learn from all this exercise and want to know whether what is what and how to resolve this manually (maybe by writing some hex code or script etc) if possible.
Summarized:
Phone: SM-G988B/DS
ROM: Stock (G988BXXU5BTJ3) (rooted)
Status: SIM Card Registration failure ( IMEI status NG)
IMEI : Intact (As on the back of the phone)
EFS file ( nv_data.bin and .bak missing)
Previous Status: SIM Card was working fine before flashing ROM
Your valuable suggestions in this regard shall be
Click to expand...
Click to collapse

BRO DID YOU FIND ANYTHING

Xshaanx93 said:
BRO DID YOU FIND ANYTHING
Click to expand...
Click to collapse
yes i have fixed my galay s20 plus if u need help msg me and also it was not free coast me Rs 4000 pkr

Alejitox76 said:
Hey I've got exactly they same problem as you with an S10 Plus, did you find any way to fix it ?
Click to expand...
Click to collapse
yes i have fixed my galay s20 plus if u need help msg me and also it was not free coast me Rs 4000 pkr

You can fix NG with auto patch file and and pach cert using support tools.
PS- you can get auto patch file on paid server, Such as ROMDevelopers ETC website

merhaba bir notum var 20 ultra 5g imei durumu gitti sorunu çözemiyorum u4 sürüm ikili 4 herkes yardım edebilir mi

The issue here is you flashed wrong firmware/modem i had this problem occure to me theirs a patch i have to apply to my phone now tho

Xshaanx93 said:
yes i have fixed my galay s20 plus if u need help msg me and also it was not free coast me Rs 4000 pkr
Click to expand...
Click to collapse
I want you to fix mine

Question T-Mobile NETWORK UNLOCK PAID SOLUTION

I have OnePlus 9 pro t mobile, I was using eu rom normally, when eu network problem gave, I returned to tmo via msm in hopes that the network problem would be solved. but i keep getting this error t mobile team They said that there is no problem, the network can be unlocked, please try again. , please help someone , i checked the imei on the back of the device and the same inside . If anyone has encountered this problem before, can you tell me the solution? Whatever the solution is, I'm ready to do it, I couldn't solve the problem no matter what I did, eu network didn't work, I tried custom rom, but the result is that I can't get the same network and I don't have a t mobile sim card. Please someone help with this. Is there any file that I can remove this lock on the computer? My English is a bit bad, sorry about that. I'm ready to give 50 euros to the person who can solve this problem, please help.

Under settings/about phone/status what do you see?

TheGhost1951 said:
Under settings/about phone/status what do you see?
Click to expand...
Click to collapse

selimo21 said:
View attachment 5814737
Click to expand...
Click to collapse
Have you tried going into settings/system and resetting network settings?

TheGhost1951 said:
Have you tried going into settings/system and resetting network settings?
Click to expand...
Click to collapse
yes i tried and no result

Something happened to the phone, now I'm getting this error, what happened? can someone help?

Search in threads for TMO non-halos.img and flash it in fastboot mode. It flashes the modem and radio for TMO

TheGhost1951 said:
Search in threads for TMO non-halos.img and flash it in fastboot mode. It flashes the modem and radio for TMO
Click to expand...
Click to collapse
I couldn't find the file you mentioned, can you help me? can you link the file

[TMO] 9 PRO MODEM RETENTION/DATA FIX
----- With the release of OOS13, the modem issue no longer exist. Thank you all for the support & help with this unfortunate issue, we had to endure.... ----- EXPLICITLY FOR TMOBILE 9 PRO (I'm not responsible for your failure to read or...
forum.xda-developers.com
Quick Google search

TheGhost1951 said:
[TMO] 9 PRO MODEM RETENTION/DATA FIX
----- With the release of OOS13, the modem issue no longer exist. Thank you all for the support & help with this unfortunate issue, we had to endure.... ----- EXPLICITLY FOR TMOBILE 9 PRO (I'm not responsible for your failure to read or...
forum.xda-developers.com
Quick Google search
Click to expand...
Click to collapse
I flashed it and the result is wrong, I still get the error you see above.

selimo21 said:
I flashed it and the result is wrong, I still get the error you see above.
Click to expand...
Click to collapse
Time to MSM to your original model number....

TheGhost1951 said:
Time to MSM to your original model number....
Click to expand...
Click to collapse
i did the result did not change , if i flash custom rom can i fix network eg pixel experience rom ?

How long was it working on Eu rom before it gave you a problem? Maybe you temporarily sim unlocked the phone for 30 days and that ran out?
OnePlus says you must go through tmobile to get it unlocked. Tmobile does need it on their network for a day or so to be able to unlock it. (They tried to do mine manually but there was no data for my phone and there is an exchange that takes place on their server so it has to be online).

Looks like the efs may be somewhat corrupt. Hope you backed up modemst1/modemst2 partitions like the conversion thread suggested you do. You'll want to flash these both back on and then problems should be resolved. You cannot use someone else's partitions, has to be yours.
MSM'ing will not help this situation. Need to unlock permanently using t-mobile's unlock in original ROM after you've restored those partitions. It blows an efuse when it does this, no custom rom can be used as a workaround.

I also had the same problem on OP9. It happened after playing with modemst partition.

joecool1029 said:
Looks like the efs may be somewhat corrupt. Hope you backed up modemst1/modemst2 partitions like the conversion thread suggested you do. You'll want to flash these both back on and then problems should be resolved. You cannot use someone else's partitions, has to be yours.
MSM'ing will not help this situation. Need to unlock permanently using t-mobile's unlock in original ROM after you've restored those partitions. It blows an efuse when it does this, no custom rom can be used as a workaround.
Click to expand...
Click to collapse
Unfortunately I don't have my own modem backups. but someone else has a backup, what can i do? please help me
ElitePotato said:
I also had the same problem on OP9. It happened after playing with modemst partition.
Click to expand...
Click to collapse
did you solve the problem? I have someone else's backup, do I have a chance to use it, please help

I have all the modem related imgs for A12 TMO if needed OP9P

TheGhost1951 said:
I have all the modem related imgs for A12 TMO if needed OP9P
Click to expand...
Click to collapse
Thank you very much for this. Finally, I'm thinking of taking a twrp backup and installing it. I've tried everything with modem backups and the result is unsuccessful I hope someone can fix this problem.

selimo21 said:
Something happened to the phone, now I'm getting this error, what happened? can someone help?
View attachment 5814789
Click to expand...
Click to collapse
Take ur SIM out then restart and connect to a US VPN and try again

L0ND0NB0Y said:
Take ur SIM out then restart and connect to a US VPN and try again
Click to expand...
Click to collapse
unfortunately i tried that too. this problem happened because i deleted modemst1 and modemst2 file in eu rom. I guess the tmo unlock application cannot read the phone's information so the unlock is refusing to bind.