[One (M8) Q&A, Help & Troubleshooting] Richylitschy:
Hello again,

so i tried flashing the combined zip, sadly, same result :/

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash zip M8_2.22.401.4
_WWE_TWRP2710_NoWipe_rename_to_ROM.zip
target reported max download size of 1830612992 bytes
sending 'zip' (40861 KB)...
OKAY [ 2.371s]
writing 'zip'...
(bootloader) zip header checking...
(bootloader) zip info parsing...
(bootloader) checking model ID...
(bootloader) checking custom ID...
(bootloader) start image[hboot] unzipping for pre-update check...
(bootloader) total_image_number=16

(bootloader) start image[adsp] unzipping & flushing...
(bootloader) [RUU]UZ,adsp,0
(bootloader) [RUU]UZ,adsp,11
(bootloader) [RUU]UZ,adsp,21
(bootloader) [RUU]UZ,adsp,33
(bootloader) [RUU]UZ,adsp,44
(bootloader) [RUU]UZ,adsp,54
(bootloader) [RUU]UZ,adsp,66
(bootloader) [RUU]UZ,adsp,76
(bootloader) [RUU]UZ,adsp,87
(bootloader) [RUU]UZ,adsp,99
(bootloader) [RUU]UZ,adsp,100
(bootloader) [RUU]WP,adsp,0
(bootloader) [RUU]WP,adsp,100
(bootloader) ...... Successful
(bootloader) current_image_number=0

(bootloader) start image[hboot] unzipping & flushing...
(bootloader) [RUU]UZ,hboot,0
(bootloader) [RUU]UZ,hboot,50
(bootloader) [RUU]UZ,hboot,100
(bootloader) [RUU]WP,hboot,0
(bootloader) [RUU]WP,hboot,99
(bootloader) [RUU]WP,hboot,100
(bootloader) ...... Successful
(bootloader) current_image_number=1

(bootloader) start image[pg2fs_spcustom] unzipping & flushing...
(bootloader) [RUU]UZ,pg2fs_spcustom,0
(bootloader) [RUU]UZ,pg2fs_spcustom,23
(bootloader) [RUU]UZ,pg2fs_spcustom,45
(bootloader) [RUU]UZ,pg2fs_spcustom,67
(bootloader) [RUU]UZ,pg2fs_spcustom,88
(bootloader) [RUU]UZ,pg2fs_spcustom,100
(bootloader) ...... Successful
(bootloader) current_image_number=2

(bootloader) start image[recovery] unzipping & flushing...
(bootloader) [RUU]UZ,recovery,0
(bootloader) [RUU]UZ,recovery,5
(bootloader) [RUU]UZ,recovery,10
(bootloader) [RUU]UZ,recovery,17
(bootloader) [RUU]UZ,recovery,25
(bootloader) [RUU]UZ,recovery,31
(bootloader) [RUU]UZ,recovery,36
(bootloader) [RUU]UZ,recovery,41
(bootloader) [RUU]UZ,recovery,57
(bootloader) [RUU]UZ,recovery,62
(bootloader) [RUU]UZ,recovery,69
(bootloader) [RUU]UZ,recovery,76
(bootloader) [RUU]UZ,recovery,82
(bootloader) [RUU]UZ,recovery,90
(bootloader) [RUU]UZ,recovery,96
(bootloader) [RUU]UZ,recovery,100
(bootloader) [RUU]WP,recovery,0
(bootloader) [RUU]WP,recovery,100
(bootloader) ...... Successful
(bootloader) current_image_number=3

(bootloader) start image[rpm] unzipping & flushing...
(bootloader) [RUU]UZ,rpm,0
(bootloader) [RUU]UZ,rpm,100
(bootloader) [RUU]WP,rpm,0
(bootloader) [RUU]WP,rpm,100
(bootloader) ...... Successful
(bootloader) current_image_number=4

(bootloader) start image[sbl1-1] unzipping & flushing...
(bootloader) [RUU]UZ,sbl1-1,0
(bootloader) [RUU]UZ,sbl1-1,100
(bootloader) signature checking...
(bootloader) [RUU]WP,sbl1-1,0
(bootloader) [RUU]WP,sbl1-1,100
(bootloader) ...... Successful
(bootloader) current_image_number=5

(bootloader) start image[sbl1-2] unzipping & flushing...
(bootloader) [RUU]UZ,sbl1-2,0
(bootloader) [RUU]UZ,sbl1-2,100
(bootloader) signature checking...
(bootloader) verified fail
(bootloader) ..... Bypassed
(bootloader) current_image_number=6

(bootloader) start image[sbl1-3] unzipping & flushing...
(bootloader) [RUU]UZ,sbl1-3,0
(bootloader) [RUU]UZ,sbl1-3,100
(bootloader) signature checking...
(bootloader) verified fail
(bootloader) ..... Bypassed
(bootloader) current_image_number=7

(bootloader) start image[sdi] unzipping & flushing...
(bootloader) [RUU]UZ,sdi,0
(bootloader) [RUU]UZ,sdi,100
(bootloader) [RUU]WP,sdi,0
(bootloader) [RUU]WP,sdi,100
(bootloader) ...... Successful
(bootloader) current_image_number=8

(bootloader) start image[sensor_hub] unzipping & flushing...
(bootloader) [RUU]UZ,sensor_hub,0
(bootloader) [RUU]UZ,sensor_hub,100
(bootloader) ..... Bypassed
(bootloader) current_image_number=9

(bootloader) start image[tp] unzipping & flushing...
(bootloader) [RUU]UZ,tp,0
(bootloader) [RUU]UZ,tp,100
(bootloader) ..... Bypassed
(bootloader) current_image_number=10

(bootloader) start image[tp] unzipping & flushing...
(bootloader) [RUU]UZ,tp,0
(bootloader) [RUU]UZ,tp,100
(bootloader) ..... Bypassed
(bootloader) current_image_number=11

(bootloader) start image[tz] unzipping & flushing...
(bootloader) [RUU]UZ,tz,0
(bootloader) [RUU]UZ,tz,100
(bootloader) [RUU]WP,tz,0
(bootloader) [RUU]WP,tz,100
(bootloader) ...... Successful
(bootloader) current_image_number=12

(bootloader) start image[wcnss] unzipping & flushing...
(bootloader) [RUU]UZ,wcnss,0
(bootloader) [RUU]UZ,wcnss,22
(bootloader) [RUU]UZ,wcnss,44
(bootloader) [RUU]UZ,wcnss,67
(bootloader) [RUU]UZ,wcnss,89
(bootloader) [RUU]UZ,wcnss,100
(bootloader) [RUU]WP,wcnss,0
(bootloader) [RUU]WP,wcnss,100
(bootloader) ...... Successful
(bootloader) current_image_number=13

(bootloader) start image[radio] unzipping & flushing...
(bootloader) [RUU]UZ,radio,0
(bootloader) [RUU]UZ,radio,9
(bootloader) [RUU]UZ,radio,18
(bootloader) [RUU]UZ,radio,27
(bootloader) [RUU]UZ,radio,36
(bootloader) [RUU]UZ,radio,45
(bootloader) [RUU]UZ,radio,54
(bootloader) [RUU]UZ,radio,63
(bootloader) [RUU]UZ,radio,72
(bootloader) [RUU]UZ,radio,81
(bootloader) [RUU]UZ,radio,86
(bootloader) [RUU]UZ,radio,95
(bootloader) [RUU]UZ,radio,100
(bootloader) trying to rename MBA
(bootloader) [RUU]WP,radio,0
(bootloader) [RUU]WP,radio,36
(bootloader) [RUU]WP,radio,72
(bootloader) [RUU]WP,radio,100
(bootloader) ...... Successful
(bootloader) current_image_number=14

(bootloader) start image[rcdata] unzipping & flushing...
(bootloader) [RUU]UZ,rcdata,0
(bootloader) [RUU]UZ,rcdata,100
(bootloader) [RUU]WP,rcdata,0
(bootloader) [RUU]WP,rcdata,100
(bootloader) ...... Successful
(bootloader) current_image_number=15

OKAY [ 39.982s]
finished. total time: 42.353s

C:\Program Files (x86)\Minimal ADB and Fastboot>

The CMD got stuck at (bootloader) [RUU]UZ,sensor_hub,100 for around 7 secs, and then continued with bypassing.

I dont know, but this sound like the nand chip is broken. But how is it possible that the camera works on 2.22?

Greeting!