Huawei JNY LX1 dead in downgrade
 

Please help to solve JNY LX1 P40 lite dead after otg update.

The phone enter in fastboot? The phone connected in COM1?

Yes fastboot working

i have 3 phones in COM1

what tools u have for such phones ?

Flash with sigma in com 1.0

Writing error!
 

error writing to serial please help

did u do hardware test point or phone stuck in com1 ?

Any solution for this problem
I have dead phone after downgrade jnylx1
Now only have Tp 9008
Cpu hisilicon 810 how flash in 9008 port?

hisilicion have com1.0 not 9008, u need have tool for flash sigma chimera octo

Yes sir
Com1.0 is ok
Can not flash with Octa have many error
If have xml firmware share it thanks

read info from fastboot and we match stock

am having the same problem flash otg update and phone dead trying to flash
with sigma but no success i need help to fix this problem please
here are my logs---

SigmaKey v.2.42.03
59715xxxx Sigma dongle 2.42, Initializing...OK
Pack 1: Not activated
Pack 2: Not activated
Pack 3: Activated
Pack 4: Activated
Pack 5: Not activated
--------- 2022-02-02 19:21:53 ---------
SigmaKey 2.42.03 HiSi: Write firmware
Wrong selection of firmware files can damage the phone.
Are you sure you want to proceed? [YES]
Flash file C:\Users\TINO-MARENO\Desktop\huawei p40lite\(Get*******.Com)_JNY-L21 10.0.1.167(C185E3R3P1)_Firmware_EMUI10.0.1_05016NT A File\Software\dload\update_sd_base\PTABLE.APP
Phone model: JNY-LX1
Version: JNY-L21 10.1.0.290(C185E4R6P1)
Preparing...This Android security patch level is not supported.
Please wait for future updates.
--------- 2022-02-02 19:23:41 ---------
SigmaKey 2.42.03 HiSi: Write firmware
HUAWEI USB COM 1.0 (COM5), Provider: HUAWEI Incorporated, Driver ver.: 2.0.6.725, Date: 05/12/2014, USB\VID_12D1&PID_3609&REV_0100
File I/O operation failed
--------- 2022-02-02 19:25:09 ---------
SigmaKey 2.42.03 HiSi: Write firmware
HUAWEI USB COM 1.0 (COM5), Provider: HUAWEI Incorporated, Driver ver.: 2.0.6.725, Date: 05/12/2014, USB\VID_12D1&PID_3609&REV_0100
HiSilicon: Kirin 810 (boot 1)
Sending boot....Failed
--------- 2022-02-02 19:28:09 ---------
SigmaKey 2.42.03 HiSi: Get device info
Bootloader unlocked: NO
FB unlocked: NO
Battery voltage: -
Phone model: JNY-LX1
Build number: JNY-L21 10.1.0.290(C185E4R6P1)
Vendor/Country: hw/meafnaf
System version: Skipped
Android version: 10
Base version: JNY-LGRP2-OVS 10.1.0.290
Custom version: JNY-L21-CUST 10.1.0.4(C185)
Preload version: JNY-L21-PRELOAD 10.1.0.1(C185R6)
Huawei-Over-the-Air info:
C_version: C185
D_version: D000
BoardID: 1850
DeviceName: JNY-L21
Done
--------- 2022-02-02 19:28:48 ---------
SigmaKey 2.42.03 HiSi: Write firmware
Wrong selection of firmware files can damage the phone.
Are you sure you want to proceed? [YES]
Flash file C:\Users\TINO-MARENO\Desktop\huawei p40lite\(Get*******.Com)_JNY-L21 10.0.1.167(C185E3R3P1)_Firmware_EMUI10.0.1_05016NT A File\Software\dload\update_sd_base\PTABLE.APP
Phone model: JNY-LX1
Version: JNY-L21 10.1.0.290(C185E4R6P1)
Preparing...This Android security patch level is not supported.
Please wait for future updates.
--------- 2022-02-02 19:32:25 ---------
SigmaKey 2.42.03 HiSi: Write firmware
HUAWEI USB COM 1.0 (COM5), Provider: HUAWEI Incorporated, Driver ver.: 2.0.6.725, Date: 05/12/2014, USB\VID_12D1&PID_3609&REV_0100
HiSilicon: Kirin 810 (boot 2)
Sending boot....Failed

here is the infor details--

SigmaKey 2.42.03 HiSi: Get device info
Bootloader unlocked: NO
FB unlocked: NO
Battery voltage: -
Phone model: JNY-LX1
Build number: JNY-L21 10.1.0.290(C185E4R6P1)
Vendor/Country: hw/meafnaf
System version: Skipped
Android version: 10
Base version: JNY-LGRP2-OVS 10.1.0.290
Custom version: JNY-L21-CUST 10.1.0.4(C185)
Preload version: JNY-L21-PRELOAD 10.1.0.1(C185R6)
Huawei-Over-the-Air info:
C_version: C185
D_version: D000
BoardID: 1850
DeviceName: JNY-L21
Done

if anyone has the xml files please share

thanks in advance.