[Guide] Backup ,restore imei and fix invalid imei number - Micromax Canvas Knight Guides, News, & Discussion

Requirements :
Imei number
Mobile unkle tools
Es file explorer
Fixing invalid imei
This method dosent require root
Install and open mobile unkle tools
Go to engeeniring mode (MTK)
Under connectivity open cds information
Click radio indormation
Open phone 1
Type in the box
AT+ EGMR=1,7,"Enter your imei number here"
Press sent command
Reboot
In phone 2
Type
AT+ EGMR=1,10,"Enter your imei number here"
Reboot
Do not forget to add space between AT+and EGMR
And your imei has been added
Backing up imei
Requires root
Open es file manager grant root permissions
Go to /data/nvram/md/nvram/
Copy the whole nvd_imei Filder to your sdcard
And this filder is your imei backup
Another way of backing up imei
Use mobile unkle tools and click in backup imei to sdcard
This creates a imei backup in another format but restoring imei is not allways sucess full using this method
Restoring imei
Requires root
just paste the nvd imei folder in
/data/nvram/md/nvram/
And reboot
Imei restored
Using mobile unkle tools
Click restore imei from sdcard
And then reboot
This method not restore imei allways in higher androod versions like marshmallow
Thanks
Hope you like this guide:good::laugh:

There's more better way.Just flash secro.IMG using sp flash tools or use the recovery flashable zip provided by Prem dev on blog.

Related

Several problems (stuck in bootup & lost imei

1)My phone is stuck into bootup cycle after I tried to fix imei null/null problem with this method:
victorator said:
copy the efs.img to your externalsdcard
open anroid terminal and type in:
su
(accept superuser prompt)
then type
dd if=/storage/extSdCard/efs.img of=/dev/block/mmcblk0p3 bs=4096
and reboot your phone
Click to expand...
Click to collapse
2) So, as I mentioned earlier - I can't connect to network due corrupt /efs/ and I tried a lot of methods to fix it. I don' t know what to do anymore, guys, I really need your help...
When I had this issue, I used clear efs in odin when pit flashing a prerooted stock rom onto it, then restoring the imei from an efs backup, if you dont have an efs backup you are kind of screwed. You can goto a phone repair shop to get them to hard write the IMEI back onto the phone, but depending on where you are from, it may be illegal as it comes under IMEI tampering. There are a variety of ways you can do it yourself but the contents of how to do it is forbidden for discussion in these forums as once again IMEI tampering is illegal, it is only legal in some countries to restore your own IMEI number, but once you know the method, you can do it with any.
Hi, be carefull on wiping efs! There are several tools to restore imei and mostly there is no need to wipe imei first.
Read carefully this thread: http://forum.xda-developers.com/showthread.php?t=2420881 and try dr.ketans multitool or that tool you did your efs backup.
Multitool can be found in dr.ketans signature.
Greetings

FIX [Desire 820s] invalid imei; Blank IMEI; WiFi NVRAM Warning

Invalid imei fix
NOTE this only works if your IMEI shows INVALID. If the IMEI is blank then follow the second post.
Switching between Lollipop and Kitkat firmwares in Desire 820s can sometimes result in invalid imei in system or when dialing *#06#
The best solution is to reflash your original firmare. However if you wish to stick to your current firmware then you can easily fix it with the following method:
This only works for invalid imei in system or in dialer and not in bootloader
What you need
Rooted Desire 820s
Download Root explorer from this link https://play.google.com/store/apps/details?id=com.speedsoftware.rootexplorer&hl=en
Now use root explorer and navigate to the root of your phone. You will get a folder named "data". Open in and inside it you will get a folder named "nvram". Rename "nvram" to "nvram_old" and then reboot your phone.
Your imeis should now be back
If you still have network problems
Open dialer
Dial *#*#4636#*#*
Select Phone information
Set preferred network type: choose GSM only. (It might change back to Unknown but keep on choosing GSM only until network appears, then you can choose another option)
Blank IMEI Fix
If your IMEI is blank when you type *#06# in dialer because you accidentally formatted the phone with SP Flash Tool then follow this:
(Only works on Kitkat firmware. So if you're on Lollipop you'll have to flash KitKat first)
1. First Install Gadget CDC VCOM drivers on your PC using this tutorial https://www.youtube.com/watch?v=9nCfN3bdayQ
2. Download NVRAM DB 820s file from here https://mega.nz/#!4DhgFQrC!vcS5n6tJb1yjjSISrAa0gtATyrmksCNMm0hSCn7hEMw
3. Download SN Write Tool from here https://mega.nz/#!IWxGmDba!UGFtSQUVOLrj1b9LhNdd-0JzuwOvbDuUelXwxYJJ7z8
4. Extract both of them
5. Open SN Write Tool folder and run SN Writer.exe as administrator
6. Let ComPort be USB VCOM and Target Type be Smart Phone
7. Click on system config
8. Under Write option tick IMEI (if Serial Number is also affected tick it as well)
7. Under IMEI option tick dual IMEI
9. Under DataBase File click on MD1_DB and navigate to the NVRAM DB 820s folder and choose the file named =>> BPLGUInfoCustomAppSrcP_MT6752_S00_MOLY_LR9_W1423_M D_LWTG_CMCC_MP_V1_P21_1_ltg_n
10. Then click on AP_DB and navigate again to the NVRAM DB 820s folder and choose the file named ==> APDB_MT6752_S01_KK2.MP13_
11. Click Save
12. Click Start
13. Insert the original IMEI 1 and IMEI 2 of your phone as shown on the box you bought your phone with and Click OK (If Serial Number is also affected type it here)
14. Switch off your Phone and connect it to the PC with a USB cable
15. Wait until it says PASS then reboot the phone
If you're still facing problems download this file https://mega.nz/#!ZaRzVCjD!bzN0oSo6ruujOOXHyt2NjpW54IFqfLrwO2yWpWALZ24
Install these drivers:
Gadget CDC VCOM Driver (most important)
MediaTek DA USB VCOM Port
MediaTek preloader USB VCOM Port
MediaTek USB Port
WiFi NVRAM WARNING: ERR 0x10 fix
What you need to perform the methods..??
1. A Rooted MTK device
2. Root Explorer.apk
3. Wifi Error Fix.rar
How to do this?
On Your Rooted device go to root Explorer
And navigate to File system root/
data/nvram/APCFG/APRDEB
There you will find two files named 1) WIFI , 2) WIFI_CUSTOM just simply delete these files
Now extract the files from the WiFi fix.rar
and move the extracted files to the previous (root/
data/nvram/APCFG/APRDEB) folder.
Reboot phone
Hi.
i tried many times but your bootloader unlocking method not work with mediatek devices. at least with mine .
when i reboot to bootloader, fastboot don't reconize any devices. When i reboot in download mode, fastboot work; but the code that it release isn't processable by htcdev website.
SniperSte said:
Hi.
i tried many times but your bootloader unlocking method not work with mediatek devices. at least with mine .
when i reboot to bootloader, fastboot don't reconize any devices. When i reboot in download mode, fastboot work; but the code that it release isn't processable by htcdev website.
Click to expand...
Click to collapse
To unlock bootloader for the unofficial d820ys flash these pgfs files with SP Flash Tool.
https://mega.nz/#!B90lRJ7D!APtZUcQJCRtO4HQa-XvfT5DazkNtKpnALJoybLx4ZjU
You rock thank you alot
Following
Still cannot rigester
I tried everything that was written
But nothing seems to get ok .
I'm on 4.4.4 kitKat I researched a bit and got my iemi
Back but still cannot register to the network please help
I cannot call or do anything...
Thanks.....:crying::crying:
ASH8725 said:
I tried everything that was written
But nothing seems to get ok .
I'm on 4.4.4 kitKat I researched a bit and got my iemi
Back but still cannot register to the network please help
I cannot call or do anything...
Thanks.....:crying::crying:
Click to expand...
Click to collapse
I will post a guide for those who have formatted their phones with SP Flash Tool
I got it
Gibz97 said:
I will post a guide for those who have formatted their phones with SP Flash Tool
Click to expand...
Click to collapse
it's simple for nvram fix just follow
From the top but for the imei got to mtk tools
Use mobileuncle app or mtksettings open engineering
Go to cds information then radio informtion then
Select you sim then type AT +EGMR=1,7," put your imei"
Remember put your phones imei from the box..cheers
Gibz97 said:
Invalid imei fix
Switching between Lollipop and Kitkat firmwares in Desire 820s can sometimes result in invalid imei in system or when dialing *#06#.
The best solution is to reflash your original firmare. However if you wish to stick to your current firmware then you can easily fix it with the following method:
This only works for invalid imei in system or in dialer and not in bootloader
What you need
help please no of above worked in my fon desire 820s dual sim imei invalid no signal i dont have back up and no box of fon i dont know imei also help
---------- Post added at 11:42 AM ---------- Previous post was at 11:40 AM ----------
ASH8725 said:
it's simple for nvram fix just follow
From the top but for the imei got to mtk tools
Use mobileuncle app or mtksettings open engineering
Go to cds information then radio informtion then
Select you sim then type AT +EGMR=1,7," put your imei"
Remember put your phones imei from the box..cheers
Click to expand...
Click to collapse
i dont have box and i dont know my imei please help.
Click to expand...
Click to collapse
help
Gibz97 said:
I will post a guide for those who have formatted their phones with SP Flash Tool
Click to expand...
Click to collapse
no mtk engineering mode
tried sn writer tool
mtk droid tools
nothing seems to work on htc desire 820s lollipop..
help please:crying::crying::crying::crying::crying::crying:
ASH8725 said:
no mtk engineering mode
tried sn writer tool
mtk droid tools
nothing seems to work on htc desire 820s lollipop..
help please:crying::crying::crying::crying::crying::crying:
Click to expand...
Click to collapse
Please read the second post of this thread
Help me a little bit please please please
I also flashed my phone with sp flash tool. and mistaken ly chose delete all plus download mode. So I have ann empty imei. I have box and real Imei. and my phone is rooted also. but mtk engineering mode apk not working to change imei. Is there any way to change Imei via phone or without flashing a kitkat rom? my current rom is 5.0.1 please help me ?????
ASH8725 said:
no mtk engineering mode
tried sn writer tool
mtk droid tools
nothing seems to work on htc desire 820s lollipop..
help please:crying::crying::crying::crying::crying::crying:
Click to expand...
Click to collapse
Try Chamelephon apk to edit the IMEI
guys i changed my IMEIs easily after searching for 5 hours ... .. use king root to root your phone .. download it from google play or from the web in .apk format and transfer it to your mobile then install and bypass the security warning .
then download this app from google store : chamelephon .. it will allow you to change your IMEIs and then your sims will work again ISA
download links are no longer available
Gibz97 said:
Blank IMEI Fix
If your IMEI is blank when you type *#06# in dialer because you accidentally formatted the phone with SP Flash Tool then follow this:
(Only works on Kitkat firmware. So if you're on Lollipop you'll have to flash KitKat first)
1. First Install Gadget CDC VCOM drivers on your PC using this tutorial https://www.youtube.com/watch?v=9nCfN3bdayQ
2. Download NVRAM DB 820s file from here https://mega.nz/#!N9NB3QDJ!3aoNxm1QjkG93ZHedP-ZhbhkVuL-ZVwWULLhUE7Ritw
3. Download SN Write Tool from here https://mega.nz/#!lxcBWKIZ!1SZVDXoLhlswY24OFFBzowHUN-wHBYPOXOhgoSIshB4
4. Extract both of them
5. Open SN Write Tool folder and run SN Writer.exe as administrator
6. Let ComPort be USB VCOM and Target Type be Smart Phone
7. Click on system config
8. Under Write option tick IMEI (if Serial Number is also affected tick it as well)
7. Under IMEI option tick dual IMEI
9. Under DataBase File click on MD1_DB and navigate to the NVRAM DB 820s folder and choose the file named =>> BPLGUInfoCustomAppSrcP_MT6752_S00_MOLY_LR9_W1423_M D_LWTG_CMCC_MP_V1_P21_1_ltg_n
10. Then click on AP_DB and navigate again to the NVRAM DB 820s folder and choose the file named ==> APDB_MT6752_S01_KK2.MP13_
11. Click Save
12. Click Start
13. Insert the original IMEI 1 and IMEI 2 of your phone as shown on the box you bought your phone with and Click OK (If Serial Number is also affected type it here)
14. Switch off your Phone and connect it to the PC with a USB cable
15. Wait until it says PASS then reboot the phone
If you're still facing problems download this file https://mega.nz/#!MoMEWRqA!57djmSN3BOimherVGBH3RxrmitdE0XJMwEcny_5wmwc
Install these drivers:
MediaTek DA USB VCOM Port
MediaTek preloader USB VCOM Port
MediaTek USB Port
Click to expand...
Click to collapse
pls i need NVRAM DB 820s folder & SN Write Tool ,download links are expired :crying:
bishoy ashraf said:
pls i need NVRAM DB 820s folder & SN Write Tool ,download links are expired :crying:
Click to expand...
Click to collapse
I will update them in the next 5 hours
Links updated
need file for unlock bootloader.
link dead

[Guide] IMEI Fix For Devices On Custom Rom.

Hey Guys,
Yep, I know there are a whole lot of threads for imei problem fix, but I've seen a lot of threads with solutions only working either for stock rom, or there is some random imei showing up on your device. This is a thread on fixing imei problem working for custom ROMs. Yes! . I have tried this AOSP Extended and Resurrection Remix OS 5.8.3 both by mohancm and I'm pretty sure it will work on any custom ROM. This fix is based on partitions backup from your stock rom, so there will be no issues.
This solution was given by Senior Member @KaMyKaSii, so all thanks to him! Lets get started!
Requirements:
1) Your device ( Obviously )
2) Stock ROM Marshmallow.
3) Rooted Device
4) Maui Meta 3G/ SN Write Tool (Optional)
Procedure:
1) If you are on Custom Rom, flash marshmallow stock ROM (Search the forums, there a lot of threads), using SP Flash Tools.
2) After going to stock rom, next step is unlocking bootloader, there are many threads on doing this, but I'll sum it up here if you
want:
i) Go to Developer Settings>OEM Unlocking. Enable the option. Also enable USB Debugging Mode.
ii) Connect to a computer and open adb on it. Check if the device is connected using the command
Code:
adb devices
iii) now use the command
Code:
adb reboot-bootloader
In fastboot use this command to unlock bootloader
Code:
fastboot oem unlock
Do as it says and reboot.
iv) Now again after rebooting go to bootloader and flash TWRP.
3) Root your device by flashing MagiskSU or SuperSU.
4) Now, download and install FX File Explorer from play store, Open it and enable Root Access from Settings>Add-Ons And
Themes in file explorer.
5) Now go back and open System (Root) folder in file explorer.
Note: If you haven't already restored, restore your imei, bluetooth address and serial number using Maui Meta or SN Write Tool.
6) In system root, grant Root permissions, and go to dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name folder.
7) In that folder, copy the files mentioned below:
Code:
expdb
nvdata
nvram
proinfo
protect1
protect2
secro
8) Copy these files in some place where it is safe ( I have copied it to Internal Storage in a folder named PartitionsBackup)..
9) Next, go back to root folder again, and open data/nvram/md/NVRAM/NVD_IMEI and copy the MP0B_001 file to internal storage. Do Not copy this file in the same place as the previous files, but remember where you have copied this file.
These are all the partitions that store the device's IMEI .
10) After copying everything mentioned, Reboot to recovery and flash the desired Custom Rom.
11) Make sure the rom is rooted, and again install FX File Explorer from play store, enable root access as above.
Do Not Forget To Backup Everything Before Doing Anything!
12) Now select the files that you have copied in internal storage (Assuming PartitionsBackup). And copy those files. ( Note: Do Not Copy the MP0B_001 file!)
13) Now open root folder, go to dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name folder and paste all the files you have copied, and if asked select Merge/Overwrite files.
14) Reboot.
15) Now go back to internal storage, copy the MP0B_001 file where you have saved it. Go back to root folder and open data/nvram/md/NVRAM/NVD_IMEI and copy the file, select Merge/Overwrite. Now long press the file and select Security, update permissions as Read, Write for both root and radio. Dis-select everything else.
16) Reboot aand Done! Voila ! You should get back the IMEI for your device :victory:
I know its a long post, but it works for Custom ROMs.!
Hope it helps!
Hit Thanks If you feel it works! :highfive:
can you please help me on step 13 because every time i reboot the device the by-name folder contents reset to the original value. my by-name folder backup is 72 mb while when i look in the folder after i reboot it is only 170 bytes
---------- Post added at 06:12 AM ---------- Previous post was at 06:07 AM ----------
also when i wait for a while after rebooting for like 4-6 hours when i looked at my baseband and imei it is not unknown anymore
and my sim is restored but when i reboot again the baseband value and imei is set back to unknown. this happened even before im not following your solution. can it be a hardware issue? would really appreciate any help thx
Cyteezy said:
can you please help me on step 13 because every time i reboot the device the by-name folder contents reset to the original value. my by-name folder backup is 72 mb while when i look in the folder after i reboot it is only 170 bytes
---------- Post added at 06:12 AM ---------- Previous post was at 06:07 AM ----------
also when i wait for a while after rebooting for like 4-6 hours when i looked at my baseband and imei it is not unknown anymore
and my sim is restored but when i reboot again the baseband value and imei is set back to unknown. this happened even before im not following your solution. can it be a hardware issue? would really appreciate any help thx
Click to expand...
Click to collapse
I didn't get you. Do not backup the whole by-name folder. Just copy the files mentioned above. And when you go into the custom ROM, just restore the files copied in the same by-name folder.
No. It might not be a hardware problem.
PraneethMv said:
Hey Guys,
Yep, I know there are a whole lot of threads for imei problem fix, but I've seen a lot of threads with solutions only working either for stock rom, or there is some random imei showing up on your device. This is a thread on fixing imei problem working for custom ROMs. Yes! . I have tried this AOSP Extended and Resurrection Remix OS 5.8.3 both by mohancm and I'm pretty sure it will work on any custom ROM. This fix is based on partitions backup from your stock rom, so there will be no issues.
This solution was given by Senior Member @KaMyKaSii, so all thanks to him! Lets get started!
Requirements:
1) Your device ( Obviously )
2) Stock ROM Marshmallow.
3) Rooted Device
4) Maui Meta 3G/ SN Write Tool (Optional)
Procedure:
1) If you are on Custom Rom, flash marshmallow stock ROM (Search the forums, there a lot of threads), using SP Flash Tools.
2) After going to stock rom, next step is unlocking bootloader, there are many threads on doing this, but I'll sum it up here if you
want:
i) Go to Developer Settings>OEM Unlocking. Enable the option. Also enable USB Debugging Mode.
ii) Connect to a computer and open adb on it. Check if the device is connected using the command
Code:
adb devices
iii) now use the command
Code:
adb reboot-bootloader
In fastboot use this command to unlock bootloader
Code:
fastboot oem unlock
Do as it says and reboot.
iv) Now again after rebooting go to bootloader and flash TWRP.
3) Root your device by flashing MagiskSU or SuperSU.
4) Now, download and install FX File Explorer from play store, Open it and enable Root Access from Settings>Add-Ons And
Themes in file explorer.
5) Now go back and open System (Root) folder in file explorer.
Note: If you haven't already restored, restore your imei, bluetooth address and serial number using Maui Meta or SN Write Tool.
6) In system root, grant Root permissions, and go to dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name folder.
7) In that folder, copy the files mentioned below:
Code:
expdb
nvdata
nvram
proinfo
protect1
protect2
secro
8) Copy these files in some place where it is safe ( I have copied it to Internal Storage in a folder named PartitionsBackup)..
9) Next, go back to root folder again, and open data/nvram/md/NVRAM/NVD_IMEI and copy the MP0B_001 file to internal storage. Do Not copy this file in the same place as the previous files, but remember where you have copied this file.
These are all the partitions that store the device's IMEI .
10) After copying everything mentioned, Reboot to recovery and flash the desired Custom Rom.
11) Make sure the rom is rooted, and again install FX File Explorer from play store, enable root access as above.
Do Not Forget To Backup Everything Before Doing Anything!
12) Now select the files that you have copied in internal storage (Assuming PartitionsBackup). And copy those files. ( Note: Do Not Copy the MP0B_001 file!)
13) Now open root folder, go to dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name folder and paste all the files you have copied, and if asked select Merge/Overwrite files.
14) Reboot.
15) Now go back to internal storage, copy the MP0B_001 file where you have saved it. Go back to root folder and open data/nvram/md/NVRAM/NVD_IMEI and copy the file, select Merge/Overwrite. Now long press the file and select Security, update permissions as Read, Write for both root and radio. Dis-select everything else.
16) Reboot aand Done! Voila ! You should get back the IMEI for your device :victory:
I know its a long post, but it works for Custom ROMs.!
Hope it helps!
Hit Thanks If you feel it works! :highfive:
Click to expand...
Click to collapse
Can anyone help me in restoring IMEI in stock ROM?
While flashing using SN writer or maui meta tool it says "Have been in meta mode. Long press power button to normal reboot". After that nothing. It boots back and I still see the INVALID IMEI message.
MisledMew said:
Hey Guys,
Yep, I know there are a whole lot of threads for imei problem fix, but I've seen a lot of threads with solutions only working either for stock rom, or there is some random imei showing up on your device. This is a thread on fixing imei problem working for custom ROMs. Yes! . I have tried this AOSP Extended and Resurrection Remix OS 5.8.3 both by mohancm and I'm pretty sure it will work on any custom ROM. This fix is based on partitions backup from your stock rom, so there will be no issues.
This solution was given by Senior Member @KaMyKaSii, so all thanks to him! Lets get started!
Requirements:
1) Your device ( Obviously )
2) Stock ROM Marshmallow.
3) Rooted Device
4) Maui Meta 3G/ SN Write Tool (Optional)
Procedure:
1) If you are on Custom Rom, flash marshmallow stock ROM (Search the forums, there a lot of threads), using SP Flash Tools.
2) After going to stock rom, next step is unlocking bootloader, there are many threads on doing this, but I'll sum it up here if you
want:
i) Go to Developer Settings>OEM Unlocking. Enable the option. Also enable USB Debugging Mode.
ii) Connect to a computer and open adb on it. Check if the device is connected using the command
iii) now use the command
In fastboot use this command to unlock bootloader Do as it says and reboot.
iv) Now again after rebooting go to bootloader and flash TWRP.
3) Root your device by flashing MagiskSU or SuperSU.
4) Now, download and install FX File Explorer from play store, Open it and enable Root Access from Settings>Add-Ons And
Themes in file explorer.
5) Now go back and open System (Root) folder in file explorer.
Note: If you haven't already restored, restore your imei, bluetooth address and serial number using Maui Meta or SN Write Tool.
6) In system root, grant Root permissions, and go to dev/block/platform/mtk-msdc.0/11230000.msdc0/by-name folder.
7) In that folder, copy the files mentioned below:
Can anyone help me in restoring IMEI in stock ROM?
While flashing using SN writer or maui meta tool it says "Have been in meta mode. Long press power button to normal reboot". After that nothing. It boots back and I still see the INVALID IMEI message.
Click to expand...
Click to collapse
SN write tool can be a little complicated to do. I personally prefer Maui Meta 3G. You can search for guides on SN write tool. There are many....
Facing problem with maui meta 3g
On my mobile it shows its in "Have been in meta mode. Long press power button to normal reboot".
it won't work ahead .... some error like kernel checksum and no permission grant type.. rather i installed drivers of mediatek its not working...
plz help out
Ni$hant said:
On my mobile it shows its in "Have been in meta mode. Long press power button to normal reboot".
it won't work ahead .... some error like kernel checksum and no permission grant type.. rather i installed drivers of mediatek its not working...
plz help out
Click to expand...
Click to collapse
Do you have all drivers installed correctly? ADB, VCOM, USB Drivers?
Also, That message screen is Meta Mode. From that screen only you can do the IMEI process.
Note: This Only works for stock rom. Use this guide.
https://forum.hovatek.com/thread-12328.html
For custom Roms, use my guide.
Device: Lenovo A2016a40 (MY6735M) also known as Lenovo vibe b
Android Version - 6.0 Marshmallow
I can't find any folder named 'nvram' on 'data' directory of root folder

Steps to recover IMEI using qcn

How does one change the IMEI?
I've tried this without success:
1. Root your device
2. Download and install QSPT and UltraEdit (HxD would also do).
3. Download an IMEI converter.
4. Get hold of a working qcn (I used my own which I know works in my other P2). Open the file by using Ultraedit/HxD and try to locate the IMEI. In my case it often starts with "08 8A...".
5. Use the IMEI converter and input your true IMEI. Memorize the output.
6. Return to the qcn file. Write it over with the IMEI output you got in step 5.
7. Save the file.
8. In a terminal enter:
su
setprop sys.usb.config rndis,diag,adb
9. Restore the qcn file from step 7 by using QSPT. You click on QPST configuration and go to "ports". If your port isn't already visible go to the device manager, look up the Qualcomm Diag port and add it. For me I believe it's COM9. Now you click on "start clients", then "software download". Tick the "Allow phone/file ESN mismatch", locate your saved qcn file and start restoring it.
10. All done. Reboot!
Apparently some XDA members managed to get their signal back once the modem was deleted so I guess somebody should know.
Other methods I've tried include flashing stock MM and installing OTA until you're on S251 as well as restoring an older full TWRP backup from when your signal used to work. Needless to say, they didn't work.
This procedure worked for me. Lenovo K6 Power with Qualcomm proc.
Successfully I found other users qcn file and wrote my IMEI in it.
Signal is back but diag port disappeared and I can't turn it on again.
WhatsApp me or call me 8436243173
WHERE CAN I GET THIS QNCN ? I'm confused
I had same problem, here are my steps with qcn backup file from working P2. My IMEIs stays right. Sorry for my english and here is my link and read next threads from that forum.
https://forum.xda-developers.com/showpost.php?p=73444145&postcount=70
mL-7 said:
This procedure worked for me. Lenovo K6 Power with Qualcomm proc.
Successfully I found other users qcn file and wrote my IMEI in it.
Signal is back but diag port disappeared and I can't turn it on again.
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Have K6 power with IMEI turned 0 after fastboot erase modemst1 and 2. Could you please detail the steps to restore IMEI?

Messed With IMEI while Enjoying flashing?

IMEI number is a personal identifier and if gets corrupted you can loose working of SIM in those phone.
Why would it happen?
1. Probably you went High and cause your modem to get corrupted?
2. Or the Old way deleted/removed/ate away NV_RAM file of EFS partition
I CAN'T EMPHASIZE THIS ENOUGH BUT ALWAYS KEEP BACKUP OF YOUR EFS PARTITION​What should I do in case my mobile gets no sim card status?
+>Try changing ROM in case there is no IMEI in the About Phone section.
If problem persist
+> Install your modem again
Get NON-HLOS.bin file its located in firmware released by ASUS on our device, Unzip the firmware and then goto folder 'firmware' in that you can find NON-HLOS.bin​
fastboot flash modem NON-HLOS.BIN
Click to expand...
Click to collapse
fastboot erase modemst1
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Click to collapse
fastboot erase modemst2
Click to expand...
Click to collapse
fastboot continue
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Click to collapse
Advance user can do this TWRP, In case anyone need that ask me ? Otherwise I think this is best way to go for it? easy and simple
Reboot your phone.
it works? YESS? YAAAAAAY
no? WHAAAAAT? Congratulations messed up with IMEI
Let's fix it.
You need
1. Proper functioning and working brain
2. Your IMEI number for both SIM
3. A windows computer(I searched a lot for Linux alternative but its not available that's sad)
4. Download qcn file which will be prototype ( Get it from another post in this segment by @Vimal Vinz)
5. Download and install QPST from https://www.qpstflash.com/downloads/QPST_2.7.460.zip
unzip password => qpstflash.com
6. A hexadecimal editor tool ( in Linux use Ghex if you use GNOME , for Windows go for HexWorkshop )
7. Qualcomm Driver from here https://androidfilebox.com/tool/qualcomm-qdloader-hs-usb-driver-32-bit-64-bit/
8. Can't Resist to mention but please make sure that you have adb installed
9. Have rooted phone.
UPCOMING STEPS CAN LEAD YOU TO COMMIT CRIME AGAINST STATE IF YOU DON'T FOLLOW THEM PROPERLY BECAUSE CHANGING IMEI TO SOMETHING OTHER THAN WHAT YOU WERE ALLOTTED CAN LEAD YOU IN PRISON AND I AM NOT RESPONSIBLE FOR ANY OF YOUR ACTION​
Click to expand...
Click to collapse
Now what you need to do is:
1. goto .......Here.......... enter your IMEI and copy and paste the generated NV_RAM(hex) in some text editor FOR BOTH SIM
2. Open the "qcn" file in the prototype I gave in step 3 above in your favorite HEX editor
I wonder If I should say it again but please don't make mistake here otherwise you are a criminal *remembers Briteny Spears*​ save the file to a location.
3. Change build.prop file in your mobile located in /system
use any editor (try ES explorer maybe?) Find "ro.build.selinux " and set it value to "0"
reboot!!!!!!!
4. when phone opens up goto adb shell
su​
Click to expand...
Click to collapse
setprop sys.usb.config diag,adb​
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Click to collapse
5. Open Device manager and now you can see a Qualcomm Device
if now reinstall the Qualcomm Driver
6. Open QPST
Goto Ports Tab in QPST
If you can't see any port you can add it clicking on add new port located at left corner
After you can see ports goto "Start Client" menu in menu bar and in that select "Software Download"
Select port and qcn file (which you edited before ) and click on start button to start flashing !
And at last reboot your phone and the problem is SOLVED !
Want to support me?
UPI address : [email protected]
PayPal: paypal.me/TalentedTey
Thanks to Vimal Vinz fot qcn file.
Reserved (idk for what)

			
				
This work for Zenfone max pro M1 ?
how to repair serial no. after flashing with qfil firmware my serial no. changed to c4atas000000 and model no. changed to Z010D to Z010DD and now volte not working my phone is MSM8939
please help

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