LYA-L29 Not booting, and wont flash,need help - GSM-Forum

siemensjunior · 07-02-2020, 15:10

Hello, i have Mate 20 PRO,when try to power it says :
"Your device has failed verification and may not work properly" and not booting to OS. I can go to recovery and fastboot , phone goes to Upgrade mode as well, but have problem with flashing.

Here is phone info :

Code:

Vendor/Country: demo/eu
System version: Skipped
Android version: 9
Base version: LYA-LGRP2-OVS 9.0.0.126
Custom version: LYA-L29-CUST 9.0.0.14(C652)
Preload version: LYA-L29-PRELOAD 9.0.0.16(C652R1)
Huawei-Over-the-Air info:
	C_version: C652
	D_version: D000
	PLMN: 25503
	BoardID: 8426
	DeviceName: LYA-L29
Done

it has demo/eu region and i try to flash C652 firmware: LYA-L29 Laya-L29C 9.0.0.108D(C652E13R1P16) Firmware 9.0.0 r3 EMUI9.0.0 05015KLX but it gives me error.

Code:

SigmaKey 2.36.00 HiSi: Enable downgrade
DBAdapter Reserved Interface (COM680), Provider: HUAWEI Technologies CO.,LTD, Driver ver.: 1.0.26.0, Date: 18.05.2016, USB\Vid_12D1&Subclass_13&Prot_23
Enabling firmware downgrade...D:\Downloads\mate20\LYA-L29C_9.0.0_C652.skf
Hardware IMEI: 020304050607080
Flash file D:\Downloads\mate20\c652\Software\dload\update_sd_base\PTABLE.APP
Writing flash SHA256RSA OK
Writing flash CRC OK
Writing flash BASE_VERLIST ...Version mismatch.
Use "Enable downgrade" action  first, then retry flashing.

Why it gives me an error? maybe it because my firmware :
Phone has inside - Build number: LYA-L29 9.1.0.300D(C652E14R1P16)
Firmware has (C652E13R1P16)
I need another firmware, where can i get it? or i can change region to hw\eu somehow, and it will help to flash C432?

Also try downgrade file LYA-L29C_9.0.0_C652.skf it gives same error.

I need buy power pack to revive this phone?

07-02-2020, 15:10	#1 (permalink)
siemensjunior Freak Poster Join Date: Aug 2010 Location: Ukraine, Lutsk Posts: 243 Member: 1367150 Status: Offline Thanks Meter: 42	LYA-L29 Not booting, and wont flash,need help Hello, i have Mate 20 PRO,when try to power it says : "Your device has failed verification and may not work properly" and not booting to OS. I can go to recovery and fastboot , phone goes to Upgrade mode as well, but have problem with flashing. Here is phone info : Code: Vendor/Country: demo/eu System version: Skipped Android version: 9 Base version: LYA-LGRP2-OVS 9.0.0.126 Custom version: LYA-L29-CUST 9.0.0.14(C652) Preload version: LYA-L29-PRELOAD 9.0.0.16(C652R1) Huawei-Over-the-Air info: C_version: C652 D_version: D000 PLMN: 25503 BoardID: 8426 DeviceName: LYA-L29 Done it has demo/eu region and i try to flash C652 firmware: LYA-L29 Laya-L29C 9.0.0.108D(C652E13R1P16) Firmware 9.0.0 r3 EMUI9.0.0 05015KLX but it gives me error. Code: SigmaKey 2.36.00 HiSi: Enable downgrade DBAdapter Reserved Interface (COM680), Provider: HUAWEI Technologies CO.,LTD, Driver ver.: 1.0.26.0, Date: 18.05.2016, USB\Vid_12D1&Subclass_13&Prot_23 Enabling firmware downgrade...D:\Downloads\mate20\LYA-L29C_9.0.0_C652.skf Hardware IMEI: 020304050607080 Flash file D:\Downloads\mate20\c652\Software\dload\update_sd_base\PTABLE.APP Writing flash SHA256RSA OK Writing flash CRC OK Writing flash BASE_VERLIST ...Version mismatch. Use "Enable downgrade" action first, then retry flashing. Why it gives me an error? maybe it because my firmware : Phone has inside - Build number: LYA-L29 9.1.0.300D(C652E14R1P16) Firmware has (C652E13R1P16) I need another firmware, where can i get it? or i can change region to hw\eu somehow, and it will help to flash C432? Also try downgrade file LYA-L29C_9.0.0_C652.skf it gives same error. I need buy power pack to revive this phone?