[Nexus 7 (2013) Q&A] edumasc:
Dear all,

I had problems with Lollipop and therefore, decided to go back to kitkat.

I tried to flash the Razor version 4.3 (JSS15Q):

sending 'bootloader' (3911 KB)...

OKAY [ 0.206s]

writing 'bootloader'...

OKAY [ 1.425s]

finished. total time: 1.631s

rebooting into bootloader...

OKAY [ 0.006s]

finished. total time: 0.006s

archive does not contain 'boot.sig'

archive does not contain 'recovery.sig'

archive does not contain 'system.sig'

--------------------------------------------

Bootloader Version...: FLO-03.15

Baseband Version.....: none

Serial Number........: 08f243ea

--------------------------------------------

checking product...

OKAY [ 0.003s]

checking version-bootloader...

OKAY [ 0.004s]

sending 'boot' (6880 KB)...

OKAY [ 0.317s]

writing 'boot'...

OKAY [ 0.377s]

sending 'recovery' (7424 KB)...

OKAY [ 0.358s]

writing 'recovery'...

OKAY [ 0.283s]

sending 'system' (603447 KB)...

OKAY [ 22.106s]

writing 'system'...

OKAY [ 26.637s]

erasing 'userdata'...

OKAY [ 20.993s]

erasing 'cache'...

OKAY [ 0.446s]

rebooting...

The tablet started and stalled @ the starting screen (a cross?).

As the system would not progress, I tried another version:

4.4.4 (KTU84P)

sending 'bootloader' (3911 KB)...

OKAY [ 0.159s]

writing 'bootloader'...

OKAY [ 1.543s]

finished. total time: 1.702s

rebooting into bootloader...

OKAY [ 0.006s]

finished. total time: 0.006s

archive does not contain 'boot.sig'

archive does not contain 'recovery.sig'

archive does not contain 'system.sig'

--------------------------------------------

Bootloader Version...: FLO-04.04

Baseband Version.....: none

Serial Number........: 08f243ea

--------------------------------------------

checking product...

OKAY [ 0.003s]

checking version-bootloader...

OKAY [ 0.004s]

sending 'boot' (7182 KB)...

OKAY [ 0.287s]

writing 'boot'...

OKAY [ 0.357s]

sending 'recovery' (7768 KB)...

OKAY [ 0.304s]

writing 'recovery'...

OKAY [ 0.299s]

sending 'system' (799293 KB)...

OKAY [ 26.031s]

writing 'system'...

OKAY [ 36.367s]

erasing 'userdata'...

OKAY [ 23.253s]

erasing 'cache'...

OKAY [ 0.489s]

rebooting...

Again, the system stalled @ the starting screen for Kitkat 4.4.4 (flying balls, if I am not wrong) ... Finally, I tried to go back to Lollipop 5.0.2 (LRX22G)

< waiting for device >

sending 'bootloader' (3911 KB)...

OKAY [ 0.159s]

writing 'bootloader'...

OKAY [ 1.364s]

finished. total time: 1.523s

rebooting into bootloader...

OKAY [ 0.006s]

finished. total time: 0.006s

archive does not contain 'boot.sig'

archive does not contain 'recovery.sig'

archive does not contain 'system.sig'

--------------------------------------------

Bootloader Version...: FLO-04.02

Baseband Version.....: none

Serial Number........: 08f243ea

--------------------------------------------

checking product...

OKAY [ 0.003s]

checking version-bootloader...

OKAY [ 0.004s]

sending 'boot' (7050 KB)...

OKAY [ 0.281s]

writing 'boot'...

OKAY [ 0.360s]

sending 'recovery' (7598 KB)...

OKAY [ 0.301s]

writing 'recovery'...

OKAY [ 0.297s]

sending 'system' (736772 KB)...

OKAY [ 24.134s]

writing 'system'...

OKAY [ 32.387s]

erasing 'userdata'...

OKAY [ 20.154s]

erasing 'cache'...

OKAY [ 0.426s]

rebooting...

finished. total time: 78.366s

The system again stalls at the start screen (four collored dots, yellow, red, green and blue).

Please, observe that in all cases I received the messages:

archive does not contain 'boot.sig'

archive does not contain 'recovery.sig'

archive does not contain 'system.sig'

Would be this the problem? Am I doing something wrong during the flashing process?

Thank you for your help :o

Cheers,

Eduardo