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Go Back   GSM-Forum > Product Support Sections > Hard/Software Products (official support) > GSMServer Products > SigmaKey

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Old 09-26-2020, 10:03   #1 (permalink)
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kirin 710 revive


Hello everyone, especially the Sigma team

i have an y9 prime 2019 (stk-l21m)
the phone build was b351 befor dead
then i try to downgrade for frp bypass
phone get the firmware compltly
but after finish phone is dead an pc dont reconize any usb port

i deassmble the phone and short the test point for huawei com 1.0
then use load fastboot option on sigma
The phone went into fastboot mode
and when sigma tray to unlock bootloader for writing firmware in fastboot mode its just say faild

when u add this build for unlock bootloader
or give me another way to revive my customer phone
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Old 09-26-2020, 11:47   #2 (permalink)
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Hi, put into factory mode, testpoint mode and flash board firmware.... then flash stock rom...
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Old 09-26-2020, 22:04   #3 (permalink)
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1) Load fastboot
2) Reflash the phone using suitable flash files
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Old 09-27-2020, 06:57   #4 (permalink)
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Quote:
Originally Posted by Gsmserver View Post
1) Load fastboot
2) Reflash the phone using suitable flash files

sir i say that when i went to flashing in fastboot mode
it get fail
sigma cant unlock bootloader
so i cant flash with suitable flaah file
work pn it plz
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Old 09-27-2020, 07:54   #5 (permalink)
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Quote:
Originally Posted by Shensohau View Post
Hi, put into factory mode, testpoint mode and flash board firmware.... then flash stock rom...
sir its kirin 710
bord software not working when bootloader is lock
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Old 09-27-2020, 08:42   #6 (permalink)
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Hi, try by testpoint mode manually...
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Old 09-27-2020, 10:44   #7 (permalink)
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Quote:
Originally Posted by Shensohau View Post
Hi, try by testpoint mode manually...
dear friend
i told that i deassmble the phone and try test point and huawwi com 1.0

in this situation u cant flash board software or official update. app

u must first load fastboot then flash any firmware
so in this mode u need thhat bootlader be unlocked
as difult bootloader is locked and sigma cant unlock bootloder for flashing official firmware
the biggest problem is that.

i ask sigma team for unlock bootloader in this situation or give me another way to rwvive
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Old 09-27-2020, 11:17   #8 (permalink)
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Quote:
Originally Posted by javad_sat View Post
dear friend
i told that i deassmble the phone and try test point and huawwi com 1.0

in this situation u cant flash board software or official update. app

u must first load fastboot then flash any firmware
so in this mode u need thhat bootlader be unlocked
as difult bootloader is locked and sigma cant unlock bootloder for flashing official firmware
the biggest problem is that.

i ask sigma team for unlock bootloader in this situation or give me another way to rwvive
WHy u du Downgred is Risky well
Come to Inbox or Leave TV id
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Old 09-28-2020, 07:45   #9 (permalink)
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Quote:
Originally Posted by VC_INDIA View Post
WHy u du Downgred is Risky well
Come to Inbox or Leave TV id

I want a solution, not advice
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Old 09-28-2020, 08:22   #10 (permalink)
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@ javad_sat,

Post here All log files from the operations you have performed to this phone, it would spread some light at your case.

Best Regards
GSMServer team



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Old 09-28-2020, 08:53   #11 (permalink)
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make test point, load fastboot put info here, we check what firmware u need to use for unbrick,

dont use any board its not need now, only stock
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Old 09-29-2020, 14:00   #12 (permalink)
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Your phone is now in COM1 state.
So perform "Software TP OFF".
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Old 10-01-2020, 07:17   #13 (permalink)
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HI GUYS
its the log

SigmaKey v.2.39.02 build 01
131854199 Sigma dongle 2.39, Initializing...OK
Pack 1: Activated
Pack 2: Activated
Pack 3: Activated
Pack 4: Activated
Pack 5: Not activated
--------- 2020-10-01 09:44:39 ---------
SigmaKey 2.39.02b1 HiSi: Load FastBoot
HUAWEI USB COM 1.0 (COM1250), Provider: HUAWEI Incorporated, Driver ver.: 2.0.6.725, Date: 8/10/2014, USB\VID_12D1&PID_3609&REV_0100
Firmware: STK-LX1-BD_1.0.0.87_Download.xml
Model: kirin710; Phone model: STK; Version: STK-LX1-BD 1.0.0.87
The bootloader from this firmware may not work.
Do you want to use our bootloader? [YES]
HiSilicon: Kirin 710
Phone model: STK-L21
Version: STK-L21M 9.1.0.351(C185E2R6P1)
Removing firmware protection.....Failed
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Old 10-01-2020, 07:22   #14 (permalink)
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Quote:
Originally Posted by Gsmserver View Post
Your phone is now in COM1 state.
So perform "Software TP OFF".
Software TP OFF log


SigmaKey 2.39.02b1 HiSi: Software testpoint On.../Off
HUAWEI USB COM 1.0 (COM1250), Provider: HUAWEI Incorporated, Driver ver.: 2.0.6.725, Date: 8/10/2014, USB\VID_12D1&PID_3609&REV_0100
Firmware: Yahya-Najjar.xml
Model: kirin710; Phone model: STK; Version: STK-LX1-BD 1.0.0.68
The bootloader from this firmware may not work.
Do you want to use our bootloader? [YES]
HiSilicon: Kirin 710
Phone model: STK-L21
Version: STK-L21M 9.1.0.351(C185E2R6P1)
Removing firmware protection.....Failed
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Old 10-01-2020, 07:28   #15 (permalink)
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Quote:
Originally Posted by kikas112 View Post
make test point, load fastboot put info here, we check what firmware u need to use for unbrick,

dont use any board its not need now, only stock
fastboot info

SigmaKey 2.39.02b1 HiSi: Get device info
Bootloader unlocked: NO
FB unlocked: NO
Battery voltage: -
Phone model: STK-L21
Build number: STK-L21M 9.1.0.351(C185E2R6P1)
Vendor/Country: hw/meafnaf
System version: Skipped
Android version: 9
Base version: STK-LGRP3-OVS 9.1.0.351
Custom version: STK-L21M-CUST 9.1.0.2(C185)
Preload version: STK-L21M-PRELOAD 9.1.0.1(C185R6)
Huawei-Over-the-Air info:
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