P30 Lite MAR-LX1A 9.1.0.275(C431E6R2P3) downgreade for FRP ? - GSM-Forum

Svetli · 03-12-2020, 15:11

Hi guys.
I have one P30 Lite MAR-LX1A for FRP remove with Firmware MAR-L21A 9.1.0.275(C431E6R2P3)

Still can't remove FRP. SAFE MODE solution not work. Need to downgrade it.

This is phone information:

Code:

read Huawei Model		MAR-LX1A
read Huawei build number	MAR-L21A 9.1.0.275(C431E6R2P3)
read FRP/User lock status	FAILCommand not allowed
read Bootloader locked/unlocked	(bootloader)  locked
read Battery level		(bootloader) 4335mv
read Vendor/Country		vendorcountry: hw/eea

This is full flash process with MAR-L21A 9.1.0.275(C431E6R2P3)

Code:

SigmaKey 2.34.07b3 HiSi: Write firmware
DBAdapter Reserved Interface (COM713), Provider: Huawei Incorporated, Driver ver.: 2.0.6.714, Date: 30.7.2015 г., USB\Vid_12d1&Subclass_13&Prot_23
Writing flash...UPDATE.APP
Hardware IMEI: 020304050607080
Writing flash SHA256RSA OK
Writing flash CRC OK
Writing flash BASE_VERLIST OK
Writing flash BASE_VER OK
Writing flash PACKAGE_TYPE OK
Writing flash HISIUFS_GPT OK
Writing flash XLOADER OK
Writing flash FASTBOOT OK
Writing flash HHEE OK
Writing flash DTS OK
Writing flash TRUSTFIRMWARE OK
Writing flash FW_LPM3 OK
Writing flash DTO OK
Writing flash KERNEL OK
Writing flash TEEOS OK
Writing flash ISP_FIRMWARE OK
Writing flash VECTOR OK
Writing flash SENSORHUB OK
Writing flash FW_HIFI OK
Writing flash VBMETA OK
Writing flash MODEMNVM_UPDATE OK
Writing flash MODEMNVM_CUST OK
Writing flash RECOVERY_RAMDISK OK
Writing flash RECOVERY_VENDOR OK
Writing flash RECOVERY_VBMETA OK
Writing flash PREAS OK
Writing flash PREAVS OK
Writing flash ERECOVERY_KERNEL OK
Writing flash ERECOVERY_RAMDISK OK
Writing flash ERECOVERY_VENDOR OK
Writing flash ERECOVERY_VBMETA OK
Writing flash ENG_VENDOR OK
Writing flash ENG_SYSTEM OK
Writing flash CACHE OK
Writing flash SYSTEM OK
Writing flash CUST OK
Writing flash MODEM_FW OK
Writing flash HISEE_IMG OK
Writing flash HISEE_FS OK
Writing flash VENDOR OK
Writing flash ODM OK
Writing flash PRODUCT OK
Writing flash PATCH OK
Writing flash USERDATA OK
Writing flash VERSION OK
Writing flash PRELOAD OK
Done

This is when I try to flash other lower version:

Code:

SigmaKey 2.34.07b3 HiSi: Write firmware
DBAdapter Reserved Interface (COM713), Provider: Huawei Incorporated, Driver ver.: 2.0.6.714, Date: 30.7.2015 г., USB\Vid_12d1&Subclass_13&Prot_23
Writing flash...UPDATE.APP
Hardware IMEI: 020304050607080
Writing flash SHA256RSA OK
Writing flash CRC OK
Writing flash BASE_VERLIST ...Version mismatch.
Use "Enable downgrade" action  first, then retry flashing.

This is when I try Downgrade function:

Code:

SigmaKey 2.34.07b3 HiSi: Enable downgrade
DBAdapter Reserved Interface (COM713), Provider: Huawei Incorporated, Driver ver.: 2.0.6.714, Date: 30.7.2015 г., USB\Vid_12d1&Subclass_13&Prot_23
Hardware IMEI: 020304050607080
Enabling firmware downgrade...Done
Write firmware

First I read this "how to" from here:https://sigmakey.com/en/supportedfea...?phone_id=2634:

Code:

ENABLE DOWNGRADE
Power the phone ON
Set the phone to manufacture mode
Open HiSilicon tab and go to Flash bookmark
Select "Android Adapter PCUI" port
Press “ENABLE DOWNGRADE” button
You need to reflash the phone after using this feature
You may use it:
To downgrade phone’s firmware version (for example, downgrade from higher to lower one).
How to do this:
Enable downgrade in Manufacture mode.
Reflash the device in upgrade mode: vol+vol- and connect USB cable.
To change phone’s localization (for example, to switch from Operator1 to Operator2).
How to do this:
Change provider settings (in manufacture mode).
Enable downgrade (in manufacture mode).
Flash the phone with the firmware that fits the selected provider settings (using upgrade mode: vol+vol- and connect USB cable).

How do I "Enable downgrade in Manufacture mode" when I do not have access to the phone's menu ?

I try 2 ways for downgrade:

1:
with Vol- + Vol+ and USB connect phone to upgrade mode.
press downdrage button in Sigmakey and then try lower firmware. - get error
then reflash phone to MAR-L21A 9.1.0.275(C431E6R2P3)
2:
with Vol- + Vol+ and USB connect phone to upgrade mode.
flash MAR-L21A 9.1.0.275(C431E6R2P3) and when start flash SYSTEM (this is ~25%) remove USB cable.
hard close Sigmakey (from Task Manager), and then with Sigmakey try to flash lower firmware. - get error

The firmwares that I try are:
P30 Lite ( Dual ) MAR-LX1A 9.1.0 (C185) Reset Frp (Downgrade Firmware)
P30 Lite ( Dual ) MAR-LX1A MAR-L21 hw eea Marie-L21A 9.0.1.155(C431E6R2P3) Firmware 9.0.0 r3 EMUI9.0.1 05015UBC

How to downdrage this MAR-LX1A with MAR-L21A 9.1.0.275(C431E6R2P3) firmware ?

mcandre · 03-12-2020, 15:17

Quote:

I try 2 ways for downgrade:

1:
with Vol- + Vol+ and USB connect phone to upgrade mode.
press downdrage button in Sigmakey and then try lower firmware. - get error
then reflash phone to MAR-L21A 9.1.0.275(C431E6R2P3)
2:
with Vol- + Vol+ and USB connect phone to upgrade mode.
flash MAR-L21A 9.1.0.275(C431E6R2P3) and when start flash SYSTEM (this is ~25%) remove USB cable.
hard close Sigmakey (from Task Manager), and then with Sigmakey try to flash lower firmware. - get error

The firmwares that I try are:
P30 Lite ( Dual ) MAR-LX1A 9.1.0 (C185) Reset Frp (Downgrade Firmware)
P30 Lite ( Dual ) MAR-LX1A MAR-L21 hw eea Marie-L21A 9.0.1.155(C431E6R2P3) Firmware 9.0.0 r3 EMUI9.0.1 05015UBC

How to downdrage this MAR-LX1A with MAR-L21A 9.1.0.275(C431E6R2P3) firmware ?

Where are all logs? Show them please

Svetli · 03-12-2020, 15:32

Quote:

Originally Posted by mcandre

Where are all logs? Show them please

I you read again will see.
When I try to write lower firmware every time I get this error:

Code:

SigmaKey 2.34.07b3 HiSi: Write firmware
DBAdapter Reserved Interface (COM713), Provider: Huawei Incorporated, Driver ver.: 2.0.6.714, Date: 30.7.2015 г., USB\Vid_12d1&Subclass_13&Prot_23
Writing flash...UPDATE.APP
Hardware IMEI: 020304050607080
Writing flash SHA256RSA OK
Writing flash CRC OK
Writing flash BASE_VERLIST ...Version mismatch.
Use "Enable downgrade" action  first, then retry flashing.

And stop here: Writing flash BASE_VERLIST ...Version mismatch.

mcandre · 03-12-2020, 15:44

Important: use this manual for your phone "Enable downgrade on the latest Huawei smartphones"

Code:

Important! Read original phone firmware version from Fastboot mode or in the phone's menu
Open FLASH bookmark on HiSilicon tab
Select the same or higher update.app version as the phone's firmware version
Enter Upgrade mode: press VOL+ and VOL- buttons and connect USB cable. In case the phone does not enter Upgrade mode, try to enter it using "Rescue mode entering" manual
Press "Enable downgrade" button and wait for the operation to finish.
After the operation, the phone will stay in the upgrade mode and will be ready for downgrading.
You may reflash the phone using needed flash file version.

NOTE! The downgrade operation is very risky!
Do the operation at your own risk. We are not responsible for any damages. This feature is intended for advanced users only!

The downgrade operation is also shown in this video

If you did everything correctly, in accordance to manuals, then try another flash file.
For example, this one:
9.0.1.120(C431E6R2P3)

GSM_Support · 03-12-2020, 16:05

@ Svetli,

At the moment MAR-LX1a phone model is not supported for current operation.
Please wait for upcoming SigmaKey releases.

mcandre have mentioned how to downgrade version and run operation to the supported devices.

Best Regards
GSMServer team

Svetli · 03-12-2020, 16:19

Quote:

Originally Posted by mcandre

Important: use this manual for your phone "Enable downgrade on the latest Huawei smartphones"

Code:

Important! Read original phone firmware version from Fastboot mode or in the phone's menu
Open FLASH bookmark on HiSilicon tab
Select the same or higher update.app version as the phone's firmware version
Enter Upgrade mode: press VOL+ and VOL- buttons and connect USB cable. In case the phone does not enter Upgrade mode, try to enter it using "Rescue mode entering" manual
Press "Enable downgrade" button and wait for the operation to finish.
After the operation, the phone will stay in the upgrade mode and will be ready for downgrading.
You may reflash the phone using needed flash file version.

NOTE! The downgrade operation is very risky!
Do the operation at your own risk. We are not responsible for any damages. This feature is intended for advanced users only!

The downgrade operation is also shown in this video

If you did everything correctly, in accordance to manuals, then try another flash file.
For example, this one:
9.0.1.120(C431E6R2P3)

With this firmware again stop on this:

Code:

SigmaKey 2.34.07b3 HiSi: Write firmware
DBAdapter Reserved Interface (COM713), Provider: Huawei Incorporated, Driver ver.: 2.0.6.714, Date: 30.7.2015 г., USB\Vid_12d1&Subclass_13&Prot_23
Writing flash...UPDATE.APP
Hardware IMEI: 020304050607080
Writing flash SHA256RSA OK
Writing flash CRC OK
Writing flash BASE_VERLIST ...Version mismatch.
Use "Enable downgrade" action  first, then retry flashing.

Svetli · 03-12-2020, 16:21

Quote:

Originally Posted by GSM_Support

@ Svetli,

At the moment MAR-LX1a phone model is not supported for current operation.
Please wait for upcoming SigmaKey releases.

mcandre have mentioned how to downgrade version and run operation to the supported devices.

Best Regards
GSMServer team

Ok, I will wait.
I will try when new Sigmakey veriosn is out. This phone wait 2-3 weeks.

03-12-2020, 16:05	#5 (permalink)
GSM_Support Product Supporter Join Date: Feb 2005 Location: GSMserver Team Posts: 36,980 Member: 121052 Status: Offline Sonork: 100.107126 Thanks Meter: 80,766	@ Svetli, At the moment MAR-LX1a phone model is not supported for current operation. Please wait for upcoming SigmaKey releases. mcandre have mentioned how to downgrade version and run operation to the supported devices. Best Regards GSMServer team