STK-l21 and JKM-LX1 (Kirin 710) IMEI repair not working or am I doing something wrong?

Hello.

It's hard to say without Software log

Process completes succesfully but IMEI not written!

Welcome to Octoplus Huawei Software v.‪1.2.1‬

To enable 'Manufacture' mode dial
- for Qualcomm and Hisilicon based models: *#*#2846579#*#*
ProjectMenu > Background Settings > USB Port Settings > Manufacture Mode
- for MTK based models: *#*#14789632#*#*
ProjectMenu > Background Settings > USB Port Settings > Debug Mode

To enable 'Fastboot' mode
1. Power off the phone. Remove SD and SIM cards
2. Press 'Vol-' and insert USB cable
3. Wait until phone enters 'Fastboot' mode

To enable 'Upgrade' mode
1. Power off the phone. Remove SD and SIM cards
2. Press and hold 'Vol-' and 'Vol+' keys and insert USB cable
3. Wait until phone enters 'Upgrade mode'

Found COM ports:
1: COM30 DBAdapter Reserved Interface
2: COM29 Android Adapter PCUI
3: COM31 HUAWEI Mobile Connect - Fake Acm Interface
4: COM52 DBAdapter Reserved Interface
5: COM54 Android Adapter PCUI
6: COM53 HUAWEI Mobile Connect - Fake Acm Interface
7: COM5 USB Serial Port
8: COM109 HUAWEI Mobile Connect - Fake Acm Interface

Sending an authorization request...
Analyzing Smart Card...
Authorized.


2020-09-10 16:54:20 GMT -------------------------------------------------
Starting Connect
Selected phone model: ‪JKM-LX1‬
Searching HUAWEI USB COM 1.0 port...
Writing bootloader KIRIN710_V1...
Initializing remote service connection...
Error: Request timeout


2020-09-10 16:59:11 GMT -------------------------------------------------
Starting Connect
Selected phone model: ‪JKM-LX1‬
Searching HUAWEI USB COM 1.0 port...
Writing bootloader KIRIN710_V1...
Initializing remote service connection...
Writing ‪XLOADER‬ partition...
Writing ‪UCE‬ partition...
Writing ‪FASTBOOT‬ partition...
Bootloader Update successfully
Rebooting to fastboot mode...
Searching Fastboot devices...
Found a fastboot device: DEFNW18A30004818
System: ‪Chipset-miamiC20 8.2.0.001(01G4)‬
FB Lock State: ‪LOCKED‬
User Lock State: ‪LOCKED‬

Connect done.
Performed by ‪1.2.1‬ Software version.

2020-09-10 17:01:03 GMT -------------------------------------------------
Starting Repair Info
New IMEI A: ‪864309046672085‬
New IMEI B: ‪864309047672084‬
Repairing info...
Removing firmware protection...
Connecting to server...
Waiting for a response from the server...
FB Lock State: ‪UNLOCKED‬
User Lock State: ‪LOCKED‬
Rebooting device...

Repair Info done.
Performed by ‪1.2.1‬ Software version.

Unfortuantely, Repair IMEI operation isn't supported, to repair IMEI try to do Write Cert operation

Where do I get the OBF IMEI Cert files?

You can read it out from another correctly working phone

Does it need to be exactly same model or can I read from any huawei and write back as long it is readed huawei cert file? Will the cert files from Halabtech and similar sites work even the extention is different? If the cert writing process is not working, can I get my credit back?

What exactly You're trying to do?

I'm want to change/ write new IMEI's to the phone.

You can try to read out Cert from another correctly working phone on Kirin CPU's 710, 810, 980, 990, 990G, after write that Cert file into your device via Write Cert operation to fix IMEI on your device

Hi Octoplus Team,

i can't to acces to Support Area from Octoplus Huawei Tool

Please help me

https://ibb.co/LnR8VT4

Please, try to disable firewall and antivirus, after open Support Area again all should work properly, if problem will still remain, try to use VPN service for access, then post here result

Well, I have read cert from another Kirin 710 phone, I'll try and write it to another phone and get back to you. Thank you for feedback.

I read cert from perfectly working Kirin 710 phone and wrote it to STK-L21 but still no service and my credits gone!

2020-09-28 23:33:13 GMT -------------------------------------------------
Starting Write Cert
Selected phone model: STK-L21
Connecting to the credit server...
Checking balance...
Your balance: 177 credits
To perform this operation you need to have: 155 credits.
Searching HUAWEI USB COM 1.0 port...
Writing bootloader KIRIN710_V1...
Initializing remote service connection...
Writing ‪XLOADER‬ partition...
Writing ‪UCE‬ partition...
Writing ‪FASTBOOT‬ partition...
Bootloader Update successfully
Rebooting to fastboot mode...
Searching Fastboot devices...
Found a fastboot device: TMFNW19903012434
Sending device information...
Sending firmware information...
Removing firmware protection...
Connecting to server...
Waiting for a response from the server...
FB Lock State: ‪UNLOCKED‬
User Lock State: ‪LOCKED‬

Device Model: ‪STK-LX1‬
System: ‪STK-L21M 9.1.0.277(C185E2)‬
MEID: ‪00000000000000‬
IMEI A: ‪8643090466*****‬
IMEI B: ‪8643090466*****
S/N: ‪TMFNW19903012434‬
Saving backup of MODEM_SECURE...
Saving backup of OEMINFO...
Writing certificate files...
Reading secure data...
Rebooting device...

Write Cert done.
Performed by ‪1.2.1.1‬ Software version.

Sending an authorization request...
Analyzing Smart Card...
Authorized.

You credits were spent on Write Cert operation. The Write Cert operation should repair your IMEI to exact same which contain in your Cert file. As we can see operation was completed successfull.

If your device doesn't have network, that's whole anothe story and You didn't mention about that.