[ONE Q&A, Help & Troubleshooting] majzoob:
Hello,

I need some help with a Oneplus One that is stuck on the Cyanogen boot image. I bought this for cheap thinking that I could fix it, but 3 hours later still no luck. I have access to TWRP and Fastboot, which made me hopeful, but no access to the storage on the device.

1.	TWRP: I can’t mount /data, /cache/ persist (shows E:Unable to mount ‘/data’, etc). I can mount /firmware or /system.

Trying to sideload a bunch of different roms gives me this in the command prompt:

C:\Program Files (x86)\Minimal ADB and Fastboot>adb sideload cm12.zip
loading: 'cm12.zip'* daemon not running. starting it now on port 5037 *
* daemon started successfully *

error: device not found

2.	Fastboot: trying to flash individual files with fastboot gives me “remote: flash write failure”. I’ve also gotten a “partition table doesn’t exist” error.

http://xdaforums.com/oneplus-one/general/guide-return-opo-to-100-stock-t2826541

I tried these directions and got this:

target reported max download size of 1073741824 bytes
sending 'modem' (57361 KB)...
OKAY [ 1.802s]
writing 'modem'...
FAILED (remote: flash write failure)
finished. total time: 6.860s
rebooting into bootloader...
OKAY [ 0.006s]
finished. total time: 0.007s
target reported max download size of 1073741824 bytes
sending 'sbl1' (273 KB)...
OKAY [ 0.016s]
writing 'sbl1'...
FAILED (remote: flash write failure)
finished. total time: 5.076s
rebooting into bootloader...
OKAY [ 0.008s]
finished. total time: 0.009s
target reported max download size of 1073741824 bytes
sending 'dbi' (11 KB)...
OKAY [ 0.005s]
writing 'dbi'...
FAILED (remote: flash write failure)
finished. total time: 5.064s
rebooting into bootloader...
OKAY [ 0.008s]
finished. total time: 0.010s
target reported max download size of 1073741824 bytes
sending 'aboot' (445 KB)...
OKAY [ 0.019s]
writing 'aboot'...
FAILED (remote: flash write failure)
finished. total time: 5.077s
rebooting into bootloader...
OKAY [ 0.011s]
finished. total time: 0.014s
target reported max download size of 1073741824 bytes
sending 'rpm' (185 KB)...
OKAY [ 0.010s]
writing 'rpm'...
FAILED (remote: flash write failure)
finished. total time: 5.067s
rebooting into bootloader...
OKAY [ 0.010s]
finished. total time: 0.012s
target reported max download size of 1073741824 bytes
sending 'tz' (321 KB)...
OKAY [ 0.015s]
writing 'tz'...
FAILED (remote: flash write failure)
finished. total time: 5.071s
rebooting into bootloader...
OKAY [ 0.009s]
finished. total time: 0.010s
target reported max download size of 1073741824 bytes
sending 'LOGO' (328 KB)...
OKAY [ 0.014s]
writing 'LOGO'...
FAILED (remote: flash write failure)
finished. total time: 5.070s
rebooting into bootloader...
OKAY [ 0.009s]
finished. total time: 0.010s
target reported max download size of 1073741824 bytes
sending 'oppostanvbk' (10240 KB)...
OKAY [ 0.326s]
writing 'oppostanvbk'...
FAILED (remote: flash write failure)
finished. total time: 5.394s
rebooting into bootloader...
OKAY [ 0.006s]
finished. total time: 0.007s
target reported max download size of 1073741824 bytes
archive does not contain 'boot.sig'
archive does not contain 'recovery.sig'
archive does not contain 'system.sig'
archive does not contain 'vendor.img'
Creating filesystem with parameters:
Size: 59914792960
Block size: 4096
Blocks per group: 32768
Inodes per group: 8192
Inode size: 256
Journal blocks: 32768
Label:
Blocks: 14627635
Block groups: 447
Reserved block group size: 1024
Created filesystem with 11/3661824 inodes and 275906/14627635 blocks
Cannot read image.
Creating filesystem with parameters:
Size: 536870912
Block size: 4096
Blocks per group: 32768
Inodes per group: 8192
Inode size: 256
Journal blocks: 2048
Label:
Blocks: 131072
Block groups: 4
Reserved block group size: 31
Created filesystem with 11/32768 inodes and 4206/131072 blocks
--------------------------------------------
Bootloader Version...:
Baseband Version.....:
Serial Number........: 56d36153
--------------------------------------------
checking product...
OKAY [ 0.003s]
sending 'boot' (6372 KB)...
OKAY [ 0.205s]
writing 'boot'...
FAILED (remote: flash write failure)
finished. total time: 5.297s
Press any key to exit...

From what I've read, I think Heisenberg will say that the partitions are borked, but I'm hoping I'm a little luckier than others who do not have access to fastboot or twrp. Any suggestions?