[Fixed] Repair IMEI and fix deleted EFS folder for Note10+ N975F

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receph

Senior Member
Apr 22, 2012
57
16
ISTANBUL
Did you ever figure out a way to get through this error mate ?

unfortunately there is no solution right now. We have to wait for the chimera tool team to support this modem .. they are moving very slowly on this issue. We have been waiting for them to solve unsupported modem error for more than 2 months. so we expect them to support patch cert for the May updates. I hope they succeed towards the end of this century :confused:
 
OP - thank you for your informative post & your clear, concise guide. You re-educated me on the myth that you cannot change the IMEI on rooted Samsungs, & in doing so immediately saved me some good $$$.
Following your guide, I took about 20 minutes to repair IMEI on an S9+ & Note 10+. Thanks again, I really do appreciate your post.
 

JazonX

Senior Member
Dec 16, 2009
2,127
827
Xiaomi Mi 11 Ultra
unfortunately there is no solution right now. We have to wait for the chimera tool team to support this modem .. they are moving very slowly on this issue. We have been waiting for them to solve unsupported modem error for more than 2 months. so we expect them to support patch cert for the May updates. I hope they succeed towards the end of this century :confused:

Where can I follow Chimera Tool Updates?
Any good news on this ?
 

receph

Senior Member
Apr 22, 2012
57
16
ISTANBUL

mohsin1122

Member
Dec 9, 2012
12
1
Exploit Patched

I am getting unsupported modem error when I patch CERT with Chimera tool ... is there a solution for this? software version N975FXXS4CTD1
@tarik2

currently there is no solution available as told by customer care Chimera. Samsung has patched the exploit used by chimera for cert patching. i am also stuck on N976BXXS6CTGA waiting for some solution.

---------- Post added at 01:39 PM ---------- Previous post was at 01:37 PM ----------

if i install new software version from odin, can i lost imei and certificates again?
or is safe ? @tarik2

No its definitely not safe. if you install new Firmware using ODIN it will remove patched certs and install the original certs.

---------- Post added at 01:43 PM ---------- Previous post was at 01:39 PM ----------

Unsupported Modem Error in CTD1 Firmware - Any ideas ????

unsupported firmware error occurs due to the fact that Samsung patched the exploit used by Chimera to patch IMEI Certs. No tentative timelines are available for the solution just pray and wait
 
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J-A-J-O

Senior Member
Dec 8, 2005
91
4
currently there is no solution available as told by customer care Chimera. Samsung has patched the exploit used by chimera for cert patching. i am also stuck on N976BXXS6CTGA waiting for some solution.

---------- Post added at 01:39 PM ---------- Previous post was at 01:37 PM ----------



No its definitely not safe. if you install new Firmware using ODIN it will remove patched certs and install the original certs.

---------- Post added at 01:43 PM ---------- Previous post was at 01:39 PM ----------



unsupported firmware error occurs due to the fact that Samsung patched the exploit used by Chimera to patch IMEI Certs. No tentative timelines are available for the solution just pray and wait

No way to downgrade bootloader? I've been fooled by one guy in Italy, he sold me "ex-demo" that I didn't knew about it, and after I've updated it, itwent to "imei status NG" status
 

welly8662

Member
Oct 14, 2013
25
5
I have the exactly same problems now. No IEMI showing. no signal. after I root and flashing through TWRP restore.I think I made mistake by downgrading. because the TWRP backup is few months ago. see the photos. do you think my problem can be solved through chamira tools? thanks [/ATTACH][/ATTACH]
 

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farhan_ali790

Member
Oct 15, 2015
16
0
Hi bros

First of all I am not a developer, the EFS folder of my Note10+ was deleted by mistake and I lost my IMEI numbers, after a lot of concern, researches and tests I fixed my Note10+ and I want to share my very hard and bad experience maybe someone will need it, so I will not be able to assist you or answer any technical questions and I am not responsible if your device is damaged, If my article violates the forum's terms and conditions, please admins accept my apologies, I want only to help people.

This guide ONLY to repair the ORIGINAL Samsung Note10+ N975F using the ORIGINAL IMEI NUMBERS, the tool not support changing the IMEI.

Your Note10+ must/will be rooted and you will lose your warranty and some Samsung services.


This is how I fixed my Note10+:
1- I found a repair tool which support N975F and will not need a box, the tool called ChimeraTool.
2- Bootloader must be unlocked which in my case was already because I lost the EFS folder while rooting the device.
3- Enable USB debugging from the developers options, from your PC open ChimeraTool and connect your Note10+.
4- Repair your IMEI from ChimeraTool ----> Repair -----> Repair and type your IMEI numbers. (here you will see your IMEI numbers in "About Phone" but you can't make calls, you need to install some certificates)
5- Root your Note10+ using this guide by @dr.ketan https://forum.xda-developers.com/galaxy-note-10+/how-to/guide-how-to-root-note-10-t3960031
6- Go back to ChimeraTool ----> Repair -----> Patch certificates.

Enjoy ;) ;) ;)

Please Note:
1- Read the root guide carefully, specially:
(Powering up normally) → (System with NO Magisk)
(OEM Recovery Key Combo) → (Splash screen) → (Release all buttons) → (System with Magisk)
(OEM Recovery Key Combo) → (Splash screen) → (Keep pressing volume up) → (Actual recovery)

2- The fix take from me 2 tries, first try and after I finished fixing the problem and started to install my apps to start using my Note10+, I restart the phone but it could't boot the system, but the second try, now I used the phone for 3 days and everything gos smooth like any normal Note10+

3- If you do a hard reset or install a new firmware using Odin you will lose the IMEI again lose the certificates so you will not able to make calls, but you will able to see IMEI numbers in the "About Phone"

3- You can do a factory reset without losing the IMEI or certificates but If you do a factory reset from settings, you must click volume up + power buttons as soon as the phone restarted to finish the factory reset. (it looks like the system can't enter the recovery automatically because of the root).

4- If you flash a rom using Odin you will lose the certificates and you will not able to make calls but you will able to see the IMEI numbers in "About Phone", you will need to repatch certificates using ChimeraTool.

Best Regards





Update 30.11.2019:

The phone still working perfectly, I unrooted my Note10+ by uninstalled Magisk from Magisk manager, Norton antivirus telling me No risks found in my system, the phone is not rooted and no untrusted certificates ...etc, in Software update the phone telling me I have the latest version (In similar case the Note 9 was telling me my phone has a custom ROM and can't get updates) so I hope I will get official update in the future for my Note 10+.

View attachment 4890317

View attachment 4890319

View attachment 4890321
Best Regards

HI could you please share you chimra credentials for a short time I can't buy due to shortage of money I have same problem IMEI status is NG i need to install cert patch.
 

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    Hi bros

    First of all I am not a developer, the EFS folder of my Note10+ was deleted by mistake and I lost my IMEI numbers, after a lot of concern, researches and tests I fixed my Note10+ and I want to share my very hard and bad experience maybe someone will need it, so I will not be able to assist you or answer any technical questions and I am not responsible if your device is damaged, If my article violates the forum's terms and conditions, please admins accept my apologies, I want only to help people.

    This guide ONLY to repair the ORIGINAL Samsung Note10+ N975F using the ORIGINAL IMEI NUMBERS, the tool not support changing the IMEI.

    Your Note10+ must/will be rooted and you will lose your warranty and some Samsung services.


    This is how I fixed my Note10+:
    1- I found a repair tool which support N975F and will not need a box, the tool called ChimeraTool.
    2- Bootloader must be unlocked which in my case was already because I lost the EFS folder while rooting the device.
    3- Enable USB debugging from the developers options, from your PC open ChimeraTool and connect your Note10+.
    4- Repair your IMEI from ChimeraTool ----> Repair -----> Repair and type your IMEI numbers. (here you will see your IMEI numbers in "About Phone" but you can't make calls, you need to install some certificates)
    5- Root your Note10+ using this guide by @dr.ketan https://forum.xda-developers.com/galaxy-note-10+/how-to/guide-how-to-root-note-10-t3960031
    6- Go back to ChimeraTool ----> Repair -----> Patch certificates.

    Enjoy ;) ;) ;)

    Please Note:
    1- Read the root guide carefully, specially:
    (Powering up normally) → (System with NO Magisk)
    (OEM Recovery Key Combo) → (Splash screen) → (Release all buttons) → (System with Magisk)
    (OEM Recovery Key Combo) → (Splash screen) → (Keep pressing volume up) → (Actual recovery)

    2- The fix take from me 2 tries, first try and after I finished fixing the problem and started to install my apps to start using my Note10+, I restart the phone but it could't boot the system, but the second try, now I used the phone for 3 days and everything gos smooth like any normal Note10+

    3- If you do a hard reset or install a new firmware using Odin you will lose the IMEI again lose the certificates so you will not able to make calls, but you will able to see IMEI numbers in the "About Phone"

    3- You can do a factory reset without losing the IMEI or certificates but If you do a factory reset from settings, you must click volume up + power buttons as soon as the phone restarted to finish the factory reset. (it looks like the system can't enter the recovery automatically because of the root).

    4- If you flash a rom using Odin you will lose the certificates and you will not able to make calls but you will able to see the IMEI numbers in "About Phone", you will need to repatch certificates using ChimeraTool.

    Best Regards





    Update 30.11.2019:

    The phone still working perfectly, I unrooted my Note10+ by uninstalled Magisk from Magisk manager, Norton antivirus telling me No risks found in my system, the phone is not rooted and no untrusted certificates ...etc, in Software update the phone telling me I have the latest version (In similar case the Note 9 was telling me my phone has a custom ROM and can't get updates) so I hope I will get official update in the future for my Note 10+.

    View attachment 4890317

    View attachment 4890319

    View attachment 4890321
    Best Regards
    2
    Thank you for your thead, I have just a question, which version did you buy to perform the procedure? The $ 12 version?

    you need a subscription for chimera and then some of the activities require purchasing also.. i got me a free year subscription but that was a hookup lol.. prior to that tho i paid for it.. just the flashing feature is worth it for someone like me whos constantly flashing.. it allows to select a whole firmware file and can pick which partitionswithin the firmware u want to flasj.. i.e u dont need to b constantly ectracting and packing stuff u want to flash
    1
    Thank you for your thead, I have just a question, which version did you buy to perform the procedure? The $ 12 version?

    Yes my dear, I bought the 3 days License for 11.90€ (about 12$)

    Best Regards
    1
    And the phone receive ota and upgrade?

    i have the same doubt, my galaxy s10 gives error when i search for update to android 10, i am thinking of manually installing android 10 with odin using HOME_CSC instead of CSC, that way would I lose the certificates to make calls? someone tried?

    Hi,

    First time I flashed EFS image from a website (Flash it then use ChimeraTool) , the phone was able to check for update, just google N975F EFS download, please be sure the U same on your phone, unfortinlay I lost the software update after testing U2 DBT firmware because I can't find U2 EFS image.

    I am working on installing the Factory Binary to fix the problem for ever, please keep eye on https://forum.xda-developers.com/galaxy-note-10+/help/n975f-restarting-flashing-combination-t4063557

    Best Regards
    1
    Exploit Patched

    I am getting unsupported modem error when I patch CERT with Chimera tool ... is there a solution for this? software version N975FXXS4CTD1
    @tarik2

    currently there is no solution available as told by customer care Chimera. Samsung has patched the exploit used by chimera for cert patching. i am also stuck on N976BXXS6CTGA waiting for some solution.

    ---------- Post added at 01:39 PM ---------- Previous post was at 01:37 PM ----------

    if i install new software version from odin, can i lost imei and certificates again?
    or is safe ? @tarik2

    No its definitely not safe. if you install new Firmware using ODIN it will remove patched certs and install the original certs.

    ---------- Post added at 01:43 PM ---------- Previous post was at 01:39 PM ----------

    Unsupported Modem Error in CTD1 Firmware - Any ideas ????

    unsupported firmware error occurs due to the fact that Samsung patched the exploit used by Chimera to patch IMEI Certs. No tentative timelines are available for the solution just pray and wait