Read on to know how to recover OnePlus 6 and 6T from Qualcomm CrashDump Mode and clean the partition. Crashdump usually came upon while flashing a ROM wrongly or make changes in the system internal. The below given Crashdump recover method is not complicated, but your phone’s bootloader should be unlocked. Note that the guide will wipe data and custom recovery from the phone. This method won’t help to go back to Android Oreo. Also, required the firmware (OxygenOS) corresponding to the version you had on the phone. Requirements: – Unlocked bootloader on OnePlus 6 and 6T– Above 70% battery charge in the phone– OnePlus drivers installed on your PC– OxygenOS version you had on the phone– ADB and Fastboot driver setup on the PC Downloads for OnePlus 6: Oxygen OS 9.0.1 (Pie): DownloadOxygen OS 9.0.2 (Pie): DownloadOxygen OS 5.1.1 (Oreo): Download Downloads for OnePlus 6T Oxygen OS 9.0.4 (Pie): DownloadOxygen OS 9.0.5 (Pie): DownloadOxygen OS 9.0.6 (Pie): Download

Recover Qualcomm CrashDump Mode on OnePlus 6/6T

  1. Download the ROM zip file corresponding to the version you had on the phone from above link.
  2. Unpack the zip file and save all content inside the ADB installation folder on your PC. Note: In the unpacked file, if you find two zip files named “images” and “Others_flashall”, unpack those two zip files as well.
  3. Restart OnePlus 6/6T into Fastboot mode (Hold down Power + Volume Down buttons).
  4. Connect the phone to the PC
  5. Go to the ADB installation folder and double click the file “flash-all-partitions-fastboot.bat“.
  6. Wait for the procedure to complete. It will take few minutes. Note: During the process, you will get the message “Invalid sparce file format at header magic” several times. This is normal and not an error. After the process completes, your OnePlus 6/6T will boot into OxygenOS. To unpack the downloaded ROM zip file, we recommend to use 7-Zip application for Windows. For ADB, you can use Google’s Platform tools. Any question? Leave it in the comment. (source – 1, 2)