File Type: zip

P40 Pro ELS-NX9 unable to connect to Octopus Tool with erased oeminfo

Phone was damaged due to unproper downgrade.
At first, Huawei tool connected it successfully:

Code:

2021-01-13 09:58:28.287        Selected phone model: ELS-NX9
2021-01-13 09:58:29.657        Searching HUAWEI USB COM 1.0 port...
2021-01-13 09:58:42.645        Writing bootloader KIRIN990_5G_V1...
2021-01-13 09:58:42.778        Initializing remote service connection...
2021-01-13 09:58:47.833        Writing XLOADER partition...
2021-01-13 09:59:04.658        Writing UCE partition...
2021-01-13 09:59:04.956        Writing FASTBOOT partition...
2021-01-13 09:59:38.180        Writing BL2 partition...
2021-01-13 10:00:01.595        Bootloader Update successfully
2021-01-13 10:00:01.762        Rebooting to fastboot mode...
2021-01-13 10:00:01.899        Searching Fastboot devices...
2021-01-13 10:00:03.646        Total interfaces: 1
2021-01-13 10:00:03.770        Interface 0 : flags: 1, name(81): \?usb#vid_18d1&pid_d00d#0123456789abcdef#{f72fe0d4-cbcb-407d-8814-9ed673d0dd6b}
2021-01-13 10:00:03.894        Found a fastboot device: 0123456789ABCDEF
2021-01-13 10:00:06.248        Reading serial number failed
2021-01-13 10:00:15.649        Removing firmware protection...
2021-01-13 10:00:16.581        Connecting to server...
2021-01-13 10:00:17.404        Private enc 0
2021-01-13 10:00:17.528        Waiting for a response from the server...
2021-01-13 10:00:42.503        Writing sign buf data
2021-01-13 10:00:44.598        FB Lock State: UNLOCKED
2021-01-13 10:00:44.741        User Lock State: LOCKED


But I was unable to flash it with anything in Upgrade mode, even the latest appropriate firmware ELS-N29_11.0.0.152(C10E1R6P4):

Code:

2021-01-13 09:46:02.919        Searching device in Upgrade mode...
2021-01-13 09:46:03.048        Connecting to phone..
2021-01-13 09:46:18.837        Phone connect successfully!
2021-01-13 09:46:18.969        Writing firmware partitions...
2021-01-13 09:46:19.124        Writing SHA256RSA partition...
2021-01-13 09:46:20.921        Writing CRC partition...
2021-01-13 09:46:22.929        Writing BASE_VERLIST partition...
2021-01-13 09:46:23.935        Failed write BASE_VERLIST partition
2021-01-13 09:46:56.793       
2021-01-13 09:46:56.922        Write Firmware(Upgrade mode) failed.


…I decided to play with oeminfo partition, made backup and erased it from the phone.
After erasing oeminfo the phone’s no longer could be connected to the tool:

Code:

2021-01-13 12:00:06.149        Searching HUAWEI USB COM 1.0 port...
2021-01-13 12:00:06.401        Writing bootloader KIRIN990_5G_V1...
2021-01-13 12:00:06.603        Initializing remote service connection...
2021-01-13 12:00:12.367        Writing XLOADER partition...
2021-01-13 12:00:29.099        Failed to write header patch 200
2021-01-13 12:00:29.285


So I can’t restore my backup.

How’s damaged oeminfo affected connection to the tool via testpoint and is there a way to connect these phones with damaged oeminfo for restoring a backup?

Attached Files
File Type: zip oeminfo.img.zip (324.9 KB)
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