Hello Subscribers, If you are facing Param Preload Failed/Firehose Communication Handshake Failure issue while flashing oxygen os, then please watch this video till the end. If you have any questions or you are stuck somewhere, you can leave a comment below. I will try to resolve your query as quickly as possible.
My Device: OnePlus 8T Indian Version
Oxygen OS Flashing: OOS 11
Checks Required Before Flashing:
* Enough Battery
* ADB And Fastboot Drivers
* Correct MSMDownloadTool Version And ROM For Your Device
* USB Debugging Enabled
* Device State Must Be Unlocked (Bootloader Unlocked)
* Driver Signing Must Be Disabled (Windows)
Flashing Oxygen OS 11 | RollBack To Oxygen OS 11 From Any Custom ROM/Oxygen OS 12
• Rollback To Oxygen OS From Custom ROM...
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