• The phone was dead as a result of Downgrade work to remove FRP
• As is well known, the phone carries a hisi710 processor and such problems are solved only by jtag box
• But with the recent update to the chimera team, you can solve the problem without Box Jtag
- No fastboot mode
- No Upgrade Mode
- No USB COM 1.0
:> Test Point <:
• First, we make a connection to a test point
• We open the chimera, choose the model, and press Flash Factory Fastboot
Code:
Chimera Mobile Phone Utility version: 25.26.1633 @ 2020-07-05
Printing phone history
Flash Factory Fastboot
2020-07-05
00:58:49
Flash Factory Fastboot
2020-07-05
00:54:58
Flashing factory fastboot
Rebooting phone to factory mode
Uploading data
Uploading data
Uploading data
Uploading data
Rebooting the device in Fastboot mode...
Waiting for Fastboot device to appear...
We counld't identify the device, please select manually, if present!
Selected device: PORT 2: L2N4C19726008272
Phone detected.
Checking if factory challenge needed...
Checking if the factory challenge-response succeed...
The phone will remain in fastboot mode until rebooting. If your phone was bricked and you would like to repair it, you should try using repair recovery as the next step.
Finished at local time: [07.05.20 09:07:20]
• After this process the phone will go android adb interface into mode but with a black screen
• Do not disconnect the phone from the computer
• We open EFT and flash the phone in FastBoot mode
Code:
Checking fastboot device.....OK
Reading info.....OK
Device Serial: L2N4C19726008272
Device IMEI:
Device IMEI2:
Device Firmware: :Error: /preas/xxx not found in /product/hw_oem/MAR-L21A/par
Device FB Lock: UNLOCKED
Device USER Lock: LOCKED
Preparing.....OK
Writing partition info table.....OK
Flashing [XLOADER].....OK
Flashing [FASTBOOT].....OK
Flashing [HHEE].....OK
Flashing [DTS].....OK
Flashing [TRUSTFIRMWARE].....OK
Flashing [FW_LPM3].....OK
Flashing [DTO].....OK
Flashing [KERNEL].....OK
Flashing [TEEOS].....OK
Flashing [ISP_FIRMWARE].....OK
Flashing [VECTOR].....OK
Flashing [SENSORHUB].....OK
Flashing [FW_HIFI].....OK
Flashing [VBMETA].....OK
Flashing [MODEMNVM_UPDATE].....OK
Flashing [MODEMNVM_CUST].....OK
Flashing [RECOVERY_RAMDISK].....OK
Flashing [RECOVERY_VENDOR].....OK
Flashing [RECOVERY_VBMETA].....OK
Flashing [PREAS].....OK
Flashing [PREAVS].....OK
Flashing [ERECOVERY_KERNEL].....OK
Flashing [ERECOVERY_RAMDISK].....OK
Flashing [ERECOVERY_VENDOR].....OK
Flashing [ERECOVERY_VBMETA].....OK
Flashing [ENG_VENDOR].....OK
Flashing [ENG_SYSTEM].....OK
Flashing [CACHE].....OK
Flashing [SYSTEM].....OK
Flashing [CUST].....OK
Flashing [MODEM_FW].....OK
Flashing [HISEE_IMG].....OK
Flashing [HISEE_FS].....OK
Flashing [VENDOR].....OK
Flashing [ODM].....OK
Flashing [PRODUCT].....OK
Flashing [PATCH].....OK
Flashing [USERDATA].....OK
Flashing [VERSION].....OK
Flashing [PRELOAD].....OK
Flashing [CUST_VERLIST].....Failed
Flashing [CUST_VER].....Failed
Flashing [PTABLE_CUST].....Failed
Flashing [VERSION].....OK
Rebooting device.....OK
Operation {Flash APP Firmware} ID: A93C19BAED4F3215
Elapsed time 11:48 -- Version 3.1.2
• Then the phone will normally go to FastBoot mode
• After that, you may face some problems, such as rebooting the phone or a white screen, re-flash the phone in FastBoot + upgrade mode with a new flash issue and the problem will be solved
Code:
Checking fastboot device.....OK
Reading info.....OK
Device Firmware: :Error: /preas/xxx not found in /product/hw_oem/MAR-L21A/par
Device FB Lock: LOCKED
Device USER Lock: LOCKED
Checking needed files.....OK
Writing image 1.....OK
Writing image 2.....OK
Writing image 3.....OK
Switching to upgrade mode.....1OK
Waiting for Upgrade Mode port.....OK
Connecting to device.....OK
Start processing file [C:/Users/Mus/Desktop/Huawei P30 Lite ( Dual ) MAR-LX1A MAR-L21 hw eea HLRCF Marie-L21A 9.1.0.275(C431E6R2P3) Firmware EMUI9.1.0 05015SJV [androidhost.ru]_2/Software/dload/UPDATE.APP] 4,43 GB:
Firmware version: Marie-LGRP2-OVS 9.1.0.270
Flashing [sha256rsa.img].....OK
Flashing [crc.img].....OK
Flashing [base_verlist.img].....OK
Flashing [base_ver.img].....OK
Flashing [package_type.img].....OK
Flashing [hisiufs_gpt.img].....OK
Flashing [xloader.img].....OK
Flashing [fastboot.img].....OK
Flashing [hhee.img].....OK
Flashing [dts.img].....OK
Flashing [trustfirmware.img].....OK
Flashing [fw_lpm3.img].....OK
Flashing [dto.img].....OK
Flashing [kernel.img].....OK
Flashing [teeos.img].....OK
Flashing [isp_firmware.img].....OK
Flashing [vector.img].....OK
Flashing [sensorhub.img].....OK
Flashing [fw_hifi.img].....OK
Flashing [vbmeta.img].....OK
Flashing [modemnvm_update.img].....OK
Flashing [modemnvm_cust.img].....OK
Flashing [recovery_ramdisk.img].....OK
Flashing [recovery_vendor.img].....OK
Flashing [recovery_vbmeta.img].....OK
Flashing [preas.img].....OK
Flashing [preavs.img].....OK
Flashing [erecovery_kernel.img].....OK
Flashing [erecovery_ramdisk.img].....OK
Flashing [erecovery_vendor.img].....OK
Flashing [erecovery_vbmeta.img].....OK
Flashing [eng_vendor.img].....OK
Flashing [eng_system.img].....OK
Flashing [cache.img].....OK
Flashing [system.img].....OK
Flashing [cust.img].....OK
Flashing [modem_fw.img].....OK
Flashing [hisee_img.img].....OK
Flashing [hisee_fs.img].....OK
Flashing [vendor.img].....OK
Flashing [odm.img].....OK
Flashing [product.img].....OK
Flashing [patch.img].....OK
Flashing [userdata.img].....OK
Flashing [version.img].....OK
Flashing [preload.img].....OK
Start processing file [C:/Users/Mus/Desktop/Huawei P30 Lite ( Dual ) MAR-LX1A MAR-L21 hw eea HLRCF Marie-L21A 9.1.0.275(C431E6R2P3) Firmware EMUI9.1.0 05015SJV [androidhost.ru]_2/Software/dload/MAR-L21A_hw_eea/Nouveau dossier/UPDATE.APP] 254 MB:
Flashing [sha256rsa.img].....OK
Flashing [crc.img].....OK
Flashing [preload_verlist.img].....OK
Flashing [preload_ver.img].....OK
Flashing [package_type.img].....OK
Flashing [ptable_preload.img].....OK
Flashing [preload.img].....OK
Rebooting device.....OK
Operation {Flash APP Firmware} ID: D82931D6561F4DA4
Elapsed time 21:34 -- Version 3.1.2