[Android Q&A, Help & Troubleshooting] KK102:
Hello there

so I was trying to relock bootloader

but the flashtool is kept showing this to me:

23/002/2021 18:02:47 - INFO - <- This level is successfully initialized

23/002/2021 18:02:48 - INFO - JAVA_HOME : c:\flashtool\x10flasher_native\jre

23/002/2021 18:02:48 - INFO - Flashtool 0.9.33.0

23/002/2021 18:02:48 - INFO - Searching for a web proxy

23/002/2021 18:02:49 - INFO - No proxy found, using direct connection

23/002/2021 18:02:49 - INFO - Syncing devices from github

23/002/2021 18:02:49 - INFO - Opening devices repository.

23/002/2021 18:02:49 - INFO - Scanning devices folder for changes.

23/002/2021 18:02:59 - INFO - Changes have been found. Doing a hard reset (removing user modifications).

23/003/2021 18:03:00 - INFO - Quietly closing devices repository.

23/003/2021 18:03:00 - INFO - Devices sync finished.

23/003/2021 18:03:02 - INFO - Loading devices database

23/003/2021 18:03:02 - INFO - Loaded 75 devices

23/003/2021 18:03:02 - INFO - Starting phone detection

23/003/2021 18:03:07 - INFO - Device connected in flash mode

23/003/2021 18:03:09 - INFO - Please connect your device into flashmode.

23/003/2021 18:03:09 - INFO - Device connected in flash mode

23/003/2021 18:03:10 - INFO - Using Gordon gate drivers version 3.2.0.0

23/003/2021 18:03:11 - INFO - Opening device for R/W

23/003/2021 18:03:11 - INFO - Device ready for R/W.

23/003/2021 18:03:11 - INFO - Reading device information

23/003/2021 18:03:11 - INFO - Reading phone properties

23/003/2021 18:03:11 - INFO - Sending getvar:product

23/003/2021 18:03:11 - INFO - getvar status : OKAY

23/003/2021 18:03:11 - INFO - Sending Read-TA:2:2202

23/003/2021 18:03:11 - INFO - Read-TA status : OKAY

23/003/2021 18:03:11 - INFO - Sending Read-TA:2:2205

23/003/2021 18:03:11 - INFO - Read-TA status : OKAY

23/003/2021 18:03:11 - INFO - Sending Read-TA:2:2210

23/003/2021 18:03:11 - INFO - Read-TA status : OKAY

23/003/2021 18:03:11 - INFO - Sending Read-TA:2:4900

23/003/2021 18:03:11 - INFO - Read-TA status : OKAY

23/003/2021 18:03:11 - INFO - Sending Read-TA:2:10021

23/003/2021 18:03:11 - INFO - Read-TA status : FAIL

23/003/2021 18:03:11 - WARN - Unable to read TA unit 10021, error=-22 ( Hex unit value 00002725 )

23/003/2021 18:03:11 - INFO - Connected device : I4193 / SW release 1316-7224_53.1.A.3.85 / Customization 1317-8892_R4C

23/003/2021 18:03:11 - INFO - Last flash date : null

23/003/2021 18:03:11 - INFO - Phone ready for flashmode operations.

23/003/2021 18:03:11 - ERROR - Cannot invoke "String.split(String)" because the return value of "java.util.Properties.getProperty(String)" is null

Afetr I retried tapping BLU and it said:

23/003/2021 18:03:14 - INFO - Please connect your device into flashmode.

23/003/2021 18:03:14 - INFO - Using Gordon gate drivers version 3.2.0.0

23/003/2021 18:03:15 - INFO - Opening device for R/W

23/003/2021 18:03:15 - ERROR - Cannot invoke "java.util.Properties.getProperty(String)" because "this.phoneprops" is null

23/003/2021 18:03:16 - INFO - Device connected in flash mode

My phone : Xperia 10

Installed OS : lineage 17.1

I cannot use xperia companion to recover my phone until I lock the bootloader, please help!!

and sorry for poor English