[OnePlus 7T Guides, News, & Discussion] iamslimshady:
please i need urgent help iam so worried.

okay , so i flashed a custom rom on my oneplus 7t. There were some errors but i managed to boot in and use it. Now i want to go back to stock oos11 but i just cant. I also removed twrp from phone.

I tried your method and this is what Iam getting

Info: format successful

Sending 'userdata' (85 KB) OKAY [ 0.014s]

Writing 'userdata' OKAY [ 0.004s]

Erasing 'metadata' OKAY [ 0.007s]

Erase successful, but not automatically formatting.

File system type raw not supported.

Finished. Total time: 8.295s

Sending 'boot_a' (98304 KB) OKAY [ 2.159s]

Writing 'boot_a' OKAY [ 0.316s]

Finished. Total time: 3.650s

Sending 'dtbo' (16384 KB) OKAY [ 0.364s]

Writing 'dtbo' OKAY [ 0.067s]

Finished. Total time: 0.766s

Sending 'modem_a' (165396 KB) OKAY [ 3.737s]

Writing 'modem_a' OKAY [ 0.685s]

Finished. Total time: 6.581s

Sending 'reserve' (250164 KB) OKAY [ 5.717s]

Writing 'reserve' FAILED (remote: '(reserve_a) No such partition')

fastboot: error: Command failed

Sending 'recovery' (98304 KB) OKAY [ 2.214s]

Writing 'recovery' OKAY [ 0.334s]

Finished. Total time: 4.439s

Sending 'vbmeta' (8 KB) OKAY [ 0.015s]

Writing 'vbmeta' OKAY [ 0.003s]

Finished. Total time: 0.054s

Sending 'vbmeta_system' (4 KB) OKAY [ 0.008s]

Writing 'vbmeta_system' OKAY [ 0.003s]

Finished. Total time: 0.041s

Rebooting into fastboot OKAY [ 0.004s]

< waiting for any device >

fastboot: error: Failed to boot into userspace fastboot; one or more components might be unbootable.

Sending 'abl' (1164 KB) OKAY [ 0.038s]

Writing 'abl' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'aop' (200 KB) OKAY [ 0.018s]

Writing 'aop' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'bluetooth' (828 KB) OKAY [ 0.027s]

Writing 'bluetooth' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'cmnlib' (384 KB) OKAY [ 0.015s]

Writing 'cmnlib' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'cmnlib64' (500 KB) OKAY [ 0.032s]

Writing 'cmnlib64' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'devcfg' (52 KB) OKAY [ 0.021s]

Writing 'devcfg' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'dsp' (65536 KB) OKAY [ 1.612s]

Writing 'dsp' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'hyp' (480 KB) OKAY [ 0.023s]

Writing 'hyp' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'imagefv' (20 KB) OKAY [ 0.015s]

Writing 'imagefv' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'keymaster' (248 KB) OKAY [ 0.015s]

Writing 'keymaster' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'LOGO' (6540 KB) OKAY [ 0.162s]

Writing 'LOGO' OKAY [ 0.040s]

Finished. Total time: 0.568s

Sending 'multiimgoem' (16 KB) OKAY [ 0.010s]

Writing 'multiimgoem' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'odm' (912 KB) OKAY [ 0.031s]

Writing 'odm' FAILED (remote: '(odm_a) No such partition')

fastboot: error: Command failed

Sending 'oem_stanvbk' (2480 KB) OKAY [ 0.061s]

Writing 'oem_stanvbk' OKAY [ 0.013s]

Finished. Total time: 0.356s

Sending 'opproduct' (298584 KB) OKAY [ 6.812s]

Writing 'opproduct' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'qupfw' (72 KB) OKAY [ 0.008s]

Writing 'qupfw' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'storsec' (24 KB) OKAY [ 0.007s]

Writing 'storsec' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'tz' (3092 KB) OKAY [ 0.079s]

Writing 'tz' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'uefisecapp' (124 KB) OKAY [ 0.014s]

Writing 'uefisecapp' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'xbl' (3120 KB) OKAY [ 0.078s]

Writing 'xbl' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Sending 'xbl_config' (124 KB) OKAY [ 0.010s]

Writing 'xbl_config' FAILED (remote: 'Flashing is not allowed for Critical Partitions

')

fastboot: error: Command failed

Invalid sparse file format at header magic

Sending sparse 'system' 1/3 (784708 KB) OKAY [ 17.993s]

Writing 'system' FAILED (remote: 'Partition not found')

fastboot: error: Command failed

Invalid sparse file format at header magic

Sending sparse 'vendor' 1/2 (785569 KB) OKAY [ 18.020s]

Writing 'vendor' FAILED (remote: 'Partition not found')

fastboot: error: Command failed

Invalid sparse file format at header magic

Sending sparse 'product' 1/2 (785436 KB) OKAY [ 18.058s]

Writing 'product' FAILED (remote: 'Partition not found')

fastboot: error: Command failed

Rebooting OKAY [ 0.002s]

Finished. Total time: 0.009s

Press any key to continue . . .