Samsung Cert Read Write Imei Repair and Patch Cert Tool

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

• Thread starter tarik2
• Start date Nov 28, 2019

• #1

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

Attachments

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• #2

Thank you for your thead, I have just a question, which version did you buy to perform the procedure? The $ 12 version?

elliwigy

Forum Moderator / Recognized Dev / Dev Relations

• #3

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

• #4

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

• #5

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

I could't understand you 100%, for me the fix cost me only 11.90€ (the 3 days start license), I never needed any other purchasing, I used Odin to flash the ROM and Magisk-Patch.tar, not need any other tools or purchasing.

Best Regards

• #6

dostum harikasın özel olarak görüşme imkanımız varmı tşk.

• #7

And the phone receive ota and upgrade?

• #8

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?

• #9

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

• #10

380/5000
Hi, I managed to resolve by flashing the latest firmware version downloaded from SAMMOBILE. From what I understand the problem is if you install a newer bootloader and then when I was inserting a custom ROM I did a downgrade. which caused the loss of my IMEI and the baseband version. I hope to be helpful. Greetings. I was about to pay Chimera Tool

• #11

I'm having trouble with writing my IMEI into a g970F .. Chimera goes to rewrite procedure gets to the current IMEI number write then get "repair IMEI failed" anyone else having similar issues .I'm new to Chimera and I'm sure it's something easy n obvious I'm missing ... Cheers all n stay safe

• #12

Is Chimera starter license 12€ still. Cannot find thaf option on chimera's website. Can anyone please help ?

Last edited: Apr 10, 2020

• #13

This Page have been helpful. Thanks to all people. One question i have is if you want to update firmware later once new version comes out, we can use magisk to patch the new firmware AP file and flash it via odin. Do we need to patch certificate again ?

• #14

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

Best Regards

I can't see this license on their site. I am being shown the samsung pro license.

• #15

Unfortunately that 13$ Chimera license isn't available anymore. Samsung pro license now starting at 69€.

---------- Post added at 10:21 PM ---------- Previous post was at 10:16 PM ----------

i can help you for use chimeratool and root repair patch certificate your samsung phones for you with a little donate,pm me write email [email protected] or
write on facebook facebook.com/fairboy

I don't have a chimera license since that chimera start isn't available anymore. I would be very grateful if you could help me with patch certificate. It's a Samsung S9 plus.

---------- Post added at 10:24 PM ---------- Previous post was at 10:21 PM ----------

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

Since PC detachment is free now and Chimera start isn't available anymore. Can you please help me with patch cert for S9 plus?

• #16

you must repair without rooting phone, install stock rom and make imei repair, after root with magisk and patch certificate

Thanks I finally got the steps right ... Just wondering if unrooting will make patch invalid .. ?

---------- Post added at 05:54 AM ---------- Previous post was at 05:53 AM ----------

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+.

Where you able to receive firmware updates ?

• #17

Did you get back all Samsung's features back after unroot like Samsung pay, pass etc?

• #18

Did you get back all Samsung's features back after unroot like Samsung pay, pass etc?

I would like to know that as well

• #19

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

• #20

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

Similar threads

Samsung Cert Read Write Imei Repair and Patch Cert Tool

Source: https://forum.xda-developers.com/t/fixed-repair-imei-and-fix-deleted-efs-folder-for-note10-n975f.4011433/

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