[Fire HD 8 and HD 10 Original Android Development] photogravi:
It Worked But Then It Didn't....

Ok so...

I ran adb reboot bootloader

then sudo ./brick-9820.sh

Turned off device and unplugged.

That worked. Ran the code below sudo./bootrom-step.sh which again worked.

Ran sudo ./fastboot-step.sh. That worked.

TWRP Booted. I went to the Lineage 12 thread and read the instructions. Allowed modifications on the first page and then formatted data as instructed. Now it is booting back into fireOS start screen without any TWRP option to load a new ROM.

WHAT HAVE I DONE?!?! I feel so close and yet so far.

avi@avi-MacBookPro:~/Downloads/amonet$ sudo ./bootrom-step.sh
[sudo] password for avi:
[2020-01-16 15:07:06.924612] Waiting for bootrom
[2020-01-16 15:07:17.979473] Found port = /dev/ttyACM0
[2020-01-16 15:07:17.979796] Handshake

* * * If you have a short attached, remove it now * * *
* * * Press Enter to continue * * *

[2020-01-16 15:07:29.000116] Init crypto engine
[2020-01-16 15:07:29.017653] Disable caches
[2020-01-16 15:07:29.018011] Disable bootrom range checks
[2020-01-16 15:07:29.031558] Load payload from ../brom-payload/build/payload.bin = 0x4888 bytes
[2020-01-16 15:07:29.033404] Send payload
[2020-01-16 15:07:29.583997] Let's rock
[2020-01-16 15:07:29.584711] Wait for the payload to come online...
[2020-01-16 15:07:30.514222] all good
[2020-01-16 15:07:30.514897] Check GPT
[2020-01-16 15:07:30.893072]
[2020-01-16 15:07:30.893312] Sector size (logical): 512 bytes
[2020-01-16 15:07:30.893508] Disk identifier (GUID): 6679D4EB-2287-4373-B34B-34015A123D2A
[2020-01-16 15:07:30.893647] Partition table holds up to 128 entries
[2020-01-16 15:07:30.893775] This partition table begins at sector 2 and ends at sector 33
[2020-01-16 15:07:30.893891] First usable sector is 34, last usable sector is 30777310
[2020-01-16 15:07:30.893997] Other partition table is at sector 30777343
[2020-01-16 15:07:30.894099]
[2020-01-16 15:07:30.894294] Number Start (sector) End (sector) Size Name
[2020-01-16 15:07:30.897949] 1 1024 7167 3.00 MiB proinfo
[2020-01-16 15:07:30.899661] 2 7168 16383 4.50 MiB PMT
[2020-01-16 15:07:30.901410] 3 16384 17407 512.00 KiB lk
[2020-01-16 15:07:30.903100] 4 17408 18431 512.00 KiB lk2
[2020-01-16 15:07:30.904334] 5 18432 51199 16.00 MiB boot
[2020-01-16 15:07:30.905273] 6 51200 86015 17.00 MiB recovery
[2020-01-16 15:07:30.905990] 7 86016 96255 5.00 MiB tee1
[2020-01-16 15:07:30.906549] 8 96256 106495 5.00 MiB tee2
[2020-01-16 15:07:30.907166] 9 106496 187391 39.50 MiB metadata
[2020-01-16 15:07:30.908097] 10 187392 189439 1024.00 KiB kb
[2020-01-16 15:07:30.908574] 11 189440 191487 1024.00 KiB dkb
[2020-01-16 15:07:30.908999] 12 191488 192511 512.00 KiB MISC
[2020-01-16 15:07:30.909418] 13 192512 208895 8.00 MiB reserved
[2020-01-16 15:07:30.909837] 14 208896 3515391 1.58 GiB system
[2020-01-16 15:07:30.910353] 15 3515392 4383743 424.00 MiB cache
[2020-01-16 15:07:30.910800] 16 4383744 30777310 12.59 GiB userdata
[2020-01-16 15:07:30.952296]
[2020-01-16 15:07:30.952511] Modify GPT
[2020-01-16 15:07:30.952888] Validate GPT
[2020-01-16 15:07:30.953892]
[2020-01-16 15:07:30.954029] Sector size (logical): 512 bytes
[2020-01-16 15:07:30.954122] Disk identifier (GUID): 6679D4EB-2287-4373-B34B-34015A123D2A
[2020-01-16 15:07:30.954184] Partition table holds up to 128 entries
[2020-01-16 15:07:30.954245] This partition table begins at sector 2 and ends at sector 33
[2020-01-16 15:07:30.954303] First usable sector is 34, last usable sector is 30777310
[2020-01-16 15:07:30.954362] Other partition table is at sector 30777343
[2020-01-16 15:07:30.954419]
[2020-01-16 15:07:30.954507] Number Start (sector) End (sector) Size Name
[2020-01-16 15:07:30.955040] 1 1024 7167 3.00 MiB proinfo
[2020-01-16 15:07:30.955468] 2 7168 16383 4.50 MiB PMT
[2020-01-16 15:07:30.955875] 3 16384 17407 512.00 KiB lk
[2020-01-16 15:07:30.956302] 4 17408 18431 512.00 KiB lk2
[2020-01-16 15:07:30.956715] 5 18432 51199 16.00 MiB boot_x
[2020-01-16 15:07:30.957137] 6 51200 86015 17.00 MiB recovery_x
[2020-01-16 15:07:30.957549] 7 86016 96255 5.00 MiB tee1
[2020-01-16 15:07:30.957960] 8 96256 106495 5.00 MiB tee2
[2020-01-16 15:07:30.958368] 9 106496 187391 39.50 MiB metadata
[2020-01-16 15:07:30.958775] 10 187392 189439 1024.00 KiB kb
[2020-01-16 15:07:30.959181] 11 189440 191487 1024.00 KiB dkb
[2020-01-16 15:07:30.959588] 12 191488 192511 512.00 KiB MISC
[2020-01-16 15:07:30.960006] 13 192512 208895 8.00 MiB reserved
[2020-01-16 15:07:30.960450] 14 208896 3515391 1.58 GiB system
[2020-01-16 15:07:30.960863] 15 3515392 4383743 424.00 MiB cache
[2020-01-16 15:07:30.961268] 16 4383744 30325759 12.37 GiB userdata
[2020-01-16 15:07:30.961682] 17 30325760 30551039 110.00 MiB boot
[2020-01-16 15:07:30.962087] 18 30551040 30776319 110.00 MiB recovery
[2020-01-16 15:07:31.004042]
[2020-01-16 15:07:31.004162] Flash new primary GPT
[34 / 34]
[2020-01-16 15:07:31.767777] Flash new backup GPT
[33 / 33]
[2020-01-16 15:07:32.607665]
[2020-01-16 15:07:32.607782] Sector size (logical): 512 bytes
[2020-01-16 15:07:32.607856] Disk identifier (GUID): 6679D4EB-2287-4373-B34B-34015A123D2A
[2020-01-16 15:07:32.607907] Partition table holds up to 128 entries
[2020-01-16 15:07:32.607953] This partition table begins at sector 2 and ends at sector 33
[2020-01-16 15:07:32.607995] First usable sector is 34, last usable sector is 30777310
[2020-01-16 15:07:32.608099] Other partition table is at sector 30777343
[2020-01-16 15:07:32.608174]
[2020-01-16 15:07:32.608298] Number Start (sector) End (sector) Size Name
[2020-01-16 15:07:32.609306] 1 1024 7167 3.00 MiB proinfo
[2020-01-16 15:07:32.610265] 2 7168 16383 4.50 MiB PMT
[2020-01-16 15:07:32.611201] 3 16384 17407 512.00 KiB lk
[2020-01-16 15:07:32.612155] 4 17408 18431 512.00 KiB lk2
[2020-01-16 15:07:32.613097] 5 18432 51199 16.00 MiB boot_x
[2020-01-16 15:07:32.614031] 6 51200 86015 17.00 MiB recovery_x
[2020-01-16 15:07:32.614967] 7 86016 96255 5.00 MiB tee1
[2020-01-16 15:07:32.615902] 8 96256 106495 5.00 MiB tee2
[2020-01-16 15:07:32.616862] 9 106496 187391 39.50 MiB metadata
[2020-01-16 15:07:32.617804] 10 187392 189439 1024.00 KiB kb
[2020-01-16 15:07:32.618758] 11 189440 191487 1024.00 KiB dkb
[2020-01-16 15:07:32.620129] 12 191488 192511 512.00 KiB MISC
[2020-01-16 15:07:32.620653] 13 192512 208895 8.00 MiB reserved
[2020-01-16 15:07:32.621121] 14 208896 3515391 1.58 GiB system
[2020-01-16 15:07:32.621595] 15 3515392 4383743 424.00 MiB cache
[2020-01-16 15:07:32.622005] 16 4383744 30325759 12.37 GiB userdata
[2020-01-16 15:07:32.622415] 17 30325760 30551039 110.00 MiB boot
[2020-01-16 15:07:32.622824] 18 30551040 30776319 110.00 MiB recovery
[2020-01-16 15:07:32.662966]
[2020-01-16 15:07:32.663121] Check boot0
[2020-01-16 15:07:32.905719] Check rpmb
[2020-01-16 15:07:33.115513] Clear preloader header
[8 / 8]
[2020-01-16 15:07:33.530625] Downgrade rpmb
[2020-01-16 15:07:33.532654] Recheck rpmb
[2020-01-16 15:07:34.427174] rpmb downgrade ok
[2020-01-16 15:07:34.427697] Flash preloader
[272 / 272]
[272 / 272]
[2020-01-16 15:07:46.619519] Flash tz
[6459 / 6459]
[2020-01-16 15:10:04.298819] Flash lk
[950 / 950]
[2020-01-16 15:10:24.746947] Inject payload
[8 / 8]
[962 / 962]
[8 / 8]
[962 / 962]
[2020-01-16 15:11:06.516079] Force fastboot
[2020-01-16 15:11:06.824181] Flash preloader header
[4 / 4]
[4 / 4]
[2020-01-16 15:11:07.239942] Reboot
avi@avi-MacBookPro:~/Downloads/amonet$ sudo ./fastboot-step.sh
Your device will be reset to factory defaults...
Press Enter to Continue...

target reported max download size of 113246208 bytes
sending 'recovery_x' (13196 KB)...
OKAY [ 0.484s]
writing 'recovery_x'...
OKAY [ 0.647s]
finished. total time: 1.130s
******** Did you mean to fastboot format this ext4 partition?
erasing 'userdata'...
OKAY [ 0.195s]
finished. total time: 0.195s
target reported max download size of 113246208 bytes
sending 'MISC' (0 KB)...
OKAY [ 0.017s]
writing 'MISC'...
OKAY [ 0.006s]
finished. total time: 0.023s
rebooting...

finished. total time: 0.052s

Your device will now reboot into TWRP.

avi@avi-MacBookPro:~/Downloads/amonet$